WO2017193259A1 - 用于控制输出电压的方法和装置以及适配器 - Google Patents

用于控制输出电压的方法和装置以及适配器 Download PDF

Info

Publication number
WO2017193259A1
WO2017193259A1 PCT/CN2016/081414 CN2016081414W WO2017193259A1 WO 2017193259 A1 WO2017193259 A1 WO 2017193259A1 CN 2016081414 W CN2016081414 W CN 2016081414W WO 2017193259 A1 WO2017193259 A1 WO 2017193259A1
Authority
WO
WIPO (PCT)
Prior art keywords
output voltage
pwm signal
adjustment
controller
mapping relationship
Prior art date
Application number
PCT/CN2016/081414
Other languages
English (en)
French (fr)
Inventor
陈社彪
张俊
田晨
杨波
张加亮
Original Assignee
广东欧珀移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广东欧珀移动通信有限公司 filed Critical 广东欧珀移动通信有限公司
Priority to PCT/CN2016/081414 priority Critical patent/WO2017193259A1/zh
Priority to US15/552,877 priority patent/US10298046B2/en
Priority to CN201680000927.2A priority patent/CN106537749B/zh
Priority to EP16890122.1A priority patent/EP3264566B1/en
Priority to TW106107410A priority patent/TWI620395B/zh
Publication of WO2017193259A1 publication Critical patent/WO2017193259A1/zh

Links

Images

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02Conversion of ac power input into dc power output without possibility of reversal
    • H02M7/04Conversion of ac power input into dc power output without possibility of reversal by static converters
    • H02M7/12Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M7/00Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
    • H02M7/02Conversion of ac power input into dc power output without possibility of reversal
    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05FSYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10Regulating voltage or current
    • G05F1/46Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007Regulation of charging or discharging current or voltage
    • H02J7/0071Regulation of charging or discharging current or voltage with a programmable schedule
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/007Regulation of charging or discharging current or voltage
    • H02J7/00711Regulation of charging or discharging current or voltage with introduction of pulses during the charging process
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00Conversion of dc power input into dc power output
    • H02M3/02Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/145Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
    • H02M3/155Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/156Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
    • H02M3/158Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators including plural semiconductor devices as final control devices for a single load
    • H02M3/1582Buck-boost converters
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J2207/00Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J2207/20Charging or discharging characterised by the power electronics converter
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02MAPPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00Details of apparatus for conversion
    • H02M1/0003Details of control, feedback or regulation circuits
    • H02M1/0009Devices or circuits for detecting current in a converter

Definitions

  • the present invention relates to the field of charging technology and, more particularly, to a method and apparatus for controlling an output voltage and an adapter.
  • the adapter When charging, the adapter converts the alternating current to direct current through a power converter and transmits it to the electronic device.
  • the output voltage of the adapter When the output voltage of the adapter is too large, it may cause damage or even explosion of the battery, which seriously affects the safety of use.
  • a method of controlling an output voltage is known by setting a controller and a digital potentiometer in an adapter, and controlling the digital potentiometer by an I2C (inter-integrated circuit) command to make the digital potentiometer
  • I2C internal-integrated circuit
  • the sliding tap slides up and down, so that the level on the feedback pin of the AC-DC (Alternating Current-Direct Current) control chip of the power converter changes, and the AC-DC control chip is based on the feedback pin.
  • the level change changes the output voltage of the power converter to improve the safety of the adapter.
  • Embodiments of the present invention provide a method and apparatus for controlling an output voltage and an adapter, which can improve charging security, reduce cost, and improve device use efficiency.
  • a method for controlling an output voltage comprising: acquiring, by a controller, first mapping relationship information, the first mapping relationship information being used to indicate at least two adjustment strategies and at least two duty ratios a one-to-one correspondence between each adjustment strategy including indication information of an adjustment direction of an output voltage of the power converter; the controller determining a first adjustment strategy; the controller according to the first adjustment strategy and the first mapping Relation information, generating a pulse width modulation PWM signal, wherein a duty ratio of the PWM signal is indicated by the first mapping relationship information and the first adjustment policy a slightly corresponding duty cycle; the controller sends the PWM signal such that the power converter's adjustment of the output voltage corresponds to the first regulation strategy.
  • the controller sends the PWM signal, including: the controller transmitting the PWM signal through a pin.
  • the controller sends the PWM signal
  • the method includes: the controller sends the PWM signal to a filter, so that the filter is based on the And generating, by the PWM signal and the second mapping relationship information, a voltage feedback signal that needs to be sent to the power converter, wherein the second mapping relationship information is used to indicate one of the at least two duty ratios and the at least two feedback voltage values In a corresponding relationship, the feedback voltage corresponding to the voltage feedback signal is a feedback voltage value corresponding to the duty ratio of the PWM signal indicated by the second mapping relationship information.
  • the controller sends the PWM signal, including: the controller sends the PWM signal to the power converter to facilitate the power conversion Based on the PWM signal and the first mapping relationship information, the first adjustment strategy is determined, and the output voltage is adjusted based on the first adjustment strategy.
  • each of the adjustment policies further includes indication information of a magnitude of the adjustment of the output voltage of the power converter.
  • the determining, by the controller, the first adjustment policy includes: receiving, by the controller, control information sent by an external device, the external device accepting the output a voltage device, the control information being used to determine the first adjustment strategy;
  • the controller determines the first adjustment policy according to the control information.
  • the determining, by the controller, the first adjustment policy includes: the controller determining a target output voltage; the controller determining the first output voltage, The first output voltage is an output voltage of the power converter before the first time period; the controller determines the first adjustment strategy according to a difference between the first output voltage and a preset target output voltage, wherein the first adjustment strategy An adjustment strategy is used to adjust an output voltage of the power converter during the first period of time such that an output voltage of the power converter in the first period of time approaches the target output voltage.
  • a method for controlling an output voltage comprising: a filter acquiring second mapping relationship information, the second mapping relationship information is used to indicate the at least two duty ratios and at least two feedbacks a one-to-one correspondence between voltage values; the filter receives pulses sent by the controller Width modulated PWM signal, the PWM signal is determined by the controller according to the first adjustment policy and the first mapping relationship information, where the first mapping relationship information is used to indicate at least two adjustment strategies including the first adjustment policy and at least a one-to-one correspondence between two duty ratios, wherein each adjustment strategy includes indication information of an adjustment direction of an output voltage of the power converter, and a duty ratio of the PWM signal is indicated by the first mapping relationship information a duty ratio corresponding to the first adjustment strategy; the filter generates a voltage feedback signal according to the PWM signal and the second mapping relationship information, and the feedback voltage corresponding to the voltage feedback signal is indicated by the second mapping relationship information a feedback voltage value corresponding to the duty cycle of the PWM signal; the filter
  • the filter receives the PWM signal sent by the controller, and the filter includes: receiving, by using a pin, the PWM signal sent by the controller.
  • a method for controlling an output voltage comprising: a power converter acquiring first mapping relationship information, the first mapping relationship information being used to indicate at least two adjustment strategies and at least two duty cycles a one-to-one correspondence between the ratios, wherein each adjustment strategy includes indication information of an adjustment direction of the output voltage; the power converter receives a pulse width modulation PWM signal sent by the controller, and the PWM signal is a controller according to the first adjustment
  • the duty ratio of the PWM signal determined by the policy and the first mapping relationship information is a duty ratio corresponding to the first adjustment strategy indicated by the first mapping relationship information; the power converter according to the PWM signal and the The first mapping relationship determines the first adjustment strategy; the power converter adjusts the output voltage according to the first adjustment strategy.
  • the power converter receives the PWM signal sent by the controller, and the power converter receives the PWM signal sent by the controller through a pin.
  • each adjustment policy includes indication information of an adjustment magnitude of the output voltage.
  • an apparatus for controlling an output voltage comprising means for performing the steps of the first aspect and the implementations of the first aspect described above.
  • an apparatus for controlling an output voltage comprising means for performing the steps of the second aspect and the implementations of the second aspect described above.
  • an apparatus for controlling an output voltage comprising means for performing the steps of the third aspect and the various implementations of the third aspect.
  • an apparatus for controlling an output voltage comprising a memory and a processor for storing a computer program for calling and running the computer program from the memory such that the device transmitting the upstream information
  • a method of controlling the output voltage is performed by any of the above first aspects, and various implementations thereof.
  • an apparatus for controlling an output voltage comprising a memory and a processor for storing a computer program for calling and running the computer program from the memory such that the device transmitting the upstream information
  • a method of controlling the output voltage is performed by any of the above second aspects, and various implementations thereof.
  • an apparatus for controlling an output voltage comprising a memory and a processor for storing a computer program for calling and running the computer program from the memory such that the device transmitting the uplink information
  • a method of controlling the output voltage is performed by any of the above third aspects, and various implementations thereof.
  • a computer program product comprising: computer program code, when the computer program code is configured in a transceiver unit, a processing unit or a transceiver of the controller in the adapter, and the processor is running The method of causing the controller to perform the first aspect described above, and any of its various implementations, for controlling the output voltage.
  • a computer program product comprising: computer program code, when the computer program code is configured in a transceiver of a transceiver transceiver unit, processing unit or transceiver, processor running
  • the filter is caused to perform the second aspect described above, and any of its various implementations for controlling the output voltage.
  • a computer program product comprising: computer program code, a transceiver unit, a processing unit or a transceiver, a processor of the power converter configured in the adapter
  • the power converter is caused to perform the third aspect described above, and any of its various implementations for controlling the output voltage.
  • a thirteenth aspect a computer readable storage medium storing a program that causes a controller configured in an adapter to perform the first aspect described above, and any of its various implementations A method for controlling the output voltage.
  • a fourteenth aspect a computer readable storage medium storing a program that causes a filter configured in an adapter to perform the second aspect described above, and any of its various implementations A method for controlling the output voltage.
  • a computer readable storage medium is provided, the computer readable storage medium A program is stored that causes the power converter configured in the adapter to perform the third aspect described above, and any of its various implementations for controlling the output voltage.
  • an adapter configured to include: a power converter, configured to acquire an alternating current from a power source, and convert the alternating current into a direct current; and a controller, configured to use the first adjustment policy and the first mapping relationship information according to the first Generating and transmitting a pulse width modulated PWM signal, so that the power converter adjusts the output voltage of the direct current corresponding to the first adjustment strategy, wherein the first mapping relationship information is used to indicate that the first adjustment strategy is included a one-to-one correspondence between at least two adjustment strategies and at least two duty ratios, each adjustment strategy includes indication information of an adjustment direction of the output voltage, and the duty ratio of the PWM signal is the first mapping relationship The duty cycle indicated by the information corresponding to the first adjustment strategy.
  • the adapter further includes: a filter communicatively coupled to the power converter and the controller for receiving the PWM signal, according to the PWM signal and The second mapping relationship information generates a voltage feedback signal, and sends the voltage feedback signal to the power converter, wherein the second mapping relationship information is used to indicate the at least two duty ratios and the feedback carried by the voltage feedback signal a one-to-one correspondence between at least two feedback voltage values, the feedback voltage value corresponding to the voltage feedback signal is a feedback corresponding to the duty ratio of the PWM signal indicated by the second mapping relationship information a voltage value; the power converter is further configured to adjust an output voltage according to the voltage feedback signal.
  • a method and apparatus for controlling an output voltage and an adapter causing a controller to generate a PWM signal having a duty ratio corresponding to a first adjustment strategy, and controlling a power converter to adjust an output voltage by the PWM signal,
  • the PWM signal can be transmitted through one pin, thus reducing the pin resource overhead of the controller, improving the efficiency of the controller, and, since the first adjustment strategy is determined using the duty ratio of the PWM signal, only identification is required.
  • the duty cycle of the PWM signal enables control of the output voltage of the power converter, thereby eliminating the need for costly digital potentiometers in the prior art.
  • FIG. 1 is a schematic configuration diagram of an example of an adapter to which a method for controlling an output voltage is applied according to an embodiment of the present invention.
  • FIG. 2 is a schematic configuration diagram of another example of an adapter to which a method for controlling an output voltage is applied according to an embodiment of the present invention.
  • FIG. 3 is a schematic flow chart of a method for controlling an output voltage, in accordance with an embodiment of the present invention.
  • FIG. 4 is a schematic diagram showing an example of a correspondence relationship between a duty ratio and a feedback voltage value.
  • FIG. 5 is a schematic flow chart of a method for controlling an output voltage according to another embodiment of the present invention.
  • FIG. 6 is a schematic flow chart of a method for controlling an output voltage according to still another embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of an apparatus for controlling an output voltage according to an embodiment of the present invention.
  • FIG. 8 is a schematic structural diagram of an apparatus for controlling an output voltage according to another embodiment of the present invention.
  • FIG. 9 is a schematic structural diagram of an apparatus for controlling an output voltage according to still another embodiment of the present invention.
  • Figure 10 is a schematic block diagram of an apparatus for controlling an output voltage, in accordance with an embodiment of the present invention.
  • FIG. 11 is a schematic block diagram of an apparatus for controlling an output voltage according to another embodiment of the present invention.
  • Figure 12 is a schematic block diagram of an apparatus for controlling an output voltage in accordance with still another embodiment of the present invention.
  • FIG. 1 is a schematic structural diagram of an adapter 100 according to an embodiment of the present invention, as shown in FIG.
  • the adapter 100 includes:
  • a power converter 110 configured to obtain an alternating current from a power source, and convert the alternating current into direct current
  • the controller 120 is configured to generate and send a pulse width modulated PWM signal according to the first adjustment strategy and the first mapping relationship information, so that the power converter adjusts the output voltage of the direct current to correspond to the first adjustment strategy,
  • the first mapping relationship information is used to indicate a one-to-one correspondence between at least two adjustment policies including the first adjustment policy and at least two duty ratios, where each adjustment strategy includes an adjustment direction of the output voltage.
  • the indication information, the duty ratio of the PWM signal is a duty ratio corresponding to the first adjustment strategy indicated by the first mapping relationship information;
  • the filter 130 is connected in communication with the power converter and the controller, and configured to receive the PWM signal, generate a voltage feedback signal according to the PWM signal and the second mapping relationship information, and send the voltage feedback signal to the power converter, where
  • the second mapping relationship information is used to indicate a one-to-one correspondence between the at least two duty ratios and at least two feedback voltage values including a feedback voltage value carried by the voltage feedback signal, the voltage feedback signal
  • the corresponding feedback voltage value is a feedback voltage value corresponding to the duty ratio of the PWM signal indicated by the second mapping relationship information;
  • the power converter 110 is further configured to adjust an output voltage according to the voltage feedback signal.
  • the power converter 110 is configured to acquire alternating current from a power source and convert the alternating current into direct current.
  • the power adapter when the adapter 100 is connected to an external power source, the power adapter can form a power supply circuit between the power source and the external power source, so that the power converter 110 can be obtained from the external power source through the power supply circuit.
  • the alternating current is further subjected to an alternating current-direct current conversion process to generate a direct current.
  • the voltage of the direct current ie, an example of the output voltage
  • the power converter 110 performs a voltage transformation (eg, step-down) process on an alternating current voltage of, for example, 220 volts (V) or 110 volts input from an external power source (eg, a power grid) to obtain a prescribed voltage (eg, less than or AC equal to 5 volts.
  • a voltage transformation eg, step-down
  • an alternating current voltage of, for example, 220 volts (V) or 110 volts input from an external power source (eg, a power grid) to obtain a prescribed voltage (eg, less than or AC equal to 5 volts.
  • the power converter 110 performs rectification and filtering processing on the stepped alternating current to obtain a DC voltage of a required voltage.
  • the adapter may include a power output port, which may further include a positive output port and a negative output port, and the power converter may be coupled to the positive output
  • the port is connected to the negative output port such that a DC voltage generated as described above can be applied to the positive output port to generate a DC voltage (ie, another example of the output voltage) between the positive output port and the negative output port.
  • the power output port may be a port for transmitting current in a Universal Serial Bus (USB) interface.
  • USB Universal Serial Bus
  • the power output port can be connected to a power input port of the mobile terminal, such as
  • the positive output port can be connected (eg, via a charging cable) to a positive input port in a power input port of the mobile terminal, which can be (eg, via a charging cable) with a power input port of the mobile terminal
  • the negative input port is connected.
  • the positive input port can be connected to the positive pole of the battery of the mobile terminal, and the negative input port can be connected to the negative pole of the battery of the mobile terminal.
  • the power converter 110 can adjust the output voltage.
  • a control component such as an AC-DC (Alternating Current-Direct Current) control chip can be disposed in the power converter 110.
  • the control element can change the output voltage of the power converter 110 based on a feedback voltage value corresponding to a voltage feedback signal from a filter to be described later.
  • power converter 110 may adjust the output voltage in a manner that maintains the output voltage at a predetermined ratio to the feedback voltage value.
  • the feedback voltage value may be at least two specified voltage values, wherein one voltage value indicates that the adjustment strategy is to increase the output voltage according to a preset adjustment amount (or, an adjustment step size), Another voltage value indicates an adjustment strategy to reduce the output voltage by a preset amount of adjustment.
  • the method and process for adjusting the output voltage based on the feedback voltage value by the power converter 110 enumerated above are merely illustrative, and the present invention is not particularly limited.
  • the power converter 110 is adjusted based on the feedback voltage value.
  • the method and process of outputting a voltage can also be similar to the prior art, and a detailed description thereof will be omitted herein to avoid redundancy.
  • power converter 110 is communicatively coupled to filter 130 such that power converter 110 is capable of acquiring feedback voltage values from filter 130.
  • the controller 120 is operative to determine an adjustment strategy for the output voltage.
  • the adjustment strategy may be a strategy indicating an adjustment direction for the output voltage, for example, the adjustment strategy may be to increase the output voltage or decrease the output voltage.
  • the adjustment strategy may be a policy indicating a resizing of the output voltage
  • the adjustment strategy may be indication information of a difference between the adjusted output voltage and the output voltage before the adjustment, or the adjustment strategy may be adjusted. The specific voltage value that the output voltage needs to reach.
  • the controller may periodically determine the adjustment policy, and determine the period of the adjustment policy may be set by the user, or may be set by the manufacturer during the factory or software upgrade, or may be a standard protocol.
  • the invention is not particularly limited as defined.
  • the controller may also determine an adjustment policy based on an indication from an external device (eg, an electronic device as a charging target).
  • an external device eg, an electronic device as a charging target.
  • the controller 120 may have the following structure for determining an adjustment policy.
  • an output current detecting loop can be disposed between the DC output path of the power converter 110 and the controller 120 in the adapter.
  • the current sensing circuit can include a current-sense resistor disposed between an output of the power converter 110 and an output of the adapter, ie, in the embodiment of the invention, the current-sense resistor It is equivalent to connecting with an external device in series, or the current flowing through the current-sense resistor is the same as the output current from the adapter, and the voltage across the current-sense resistor is proportional to the output voltage of the adapter.
  • the resistance of the current-sense resistor can be made small.
  • the voltage across the current-sense resistor is small. Therefore, the current-sense loop can also include an amplifier (eg, a differential amplifier).
  • the controller 120 for example, an analog-to-digital converter (ADC) in the controller 120.
  • ADC analog-to-digital converter
  • the analog-to-digital converter can easily determine the output current based on the resistance value of the current-sense resistor and the voltage value across the current-sense resistor detected by the amplifier.
  • the controller 120 can determine the output current of the adapter (or power controller 110) based on the current detection loop.
  • the controller 120 can determine the target current based on the demand for the charging current (eg, required by the external device or specified by the protocol), and based on the output current.
  • the adjustment strategy is determined by the difference from the target current, and then the process will be described in detail.
  • an output voltage detection loop can be configured between the DC output path of the power converter 110 and the controller 120 in the adapter.
  • the voltage detection loop can include a voltage sensor for detecting a voltage between a positive output port and a negative output port of the adapter (or power controller 110), and the voltage sensor can The detected voltage value is transmitted to the controller 120 via the voltage detection loop.
  • the controller 120 itself has an element for detecting a voltage value, and thus, the voltage detecting circuit may be a positive output port and a negative output port of the adapter (or the power controller 110) and the control.
  • the circuit connected to the device 120.
  • the controller 120 can determine the output voltage of the adapter (or power controller 110) based on the voltage detection loop.
  • the controller 120 may determine the target voltage based on the requirements of the charging voltage (eg, required by the external device or specified by the protocol), and based on the output voltage.
  • the adjustment strategy is determined by the difference from the target voltage, and then the process will be described in detail.
  • the adapter may include an information transmission port.
  • the controller 120 may have a transceiver for receiving information from an external device.
  • the information transmission port can be connected to the transceiver to form an information transmission loop.
  • the controller 120 can receive control information (or control parameters) from the external device via the information transmission loop described above. .
  • controller may determine an adjustment policy based on the control information, and then describe the process in detail.
  • the information transmission port may be a USB interface.
  • the adapter may be configured with an electrical connector (eg, a connector jack or a connector plug), and the power output port and the information transmission port of the adapter may be uniformly disposed in the electrical connector of the power adapter.
  • the electronic connector may be a USB connector, for example, a standard USB, a Micro-USB, a Mini-USB, or the like.
  • the controller 120 is further configured to generate a Pulse Width Modulation (PWM) signal according to the adjustment strategy. Specifically, the controller 120 determines the duty cycle of the PWM signal based on the adjustment strategy. Subsequently, the process will be described in detail.
  • PWM Pulse Width Modulation
  • pulse width modulation is an analog control method, which modulates the bias of the transistor base or the gate of the MOS transistor according to the change of the corresponding load, thereby realizing the change of the on-time of the transistor or the MOS transistor, thereby realizing the switching power supply.
  • the change in output This way the output voltage of the power supply can be kept constant as operating conditions change.
  • the waveform of the PWM signal (also referred to as a PWM waveform) is a pulse waveform with a variable duty cycle.
  • the duty ratio refers to the ratio of the energization time of the pulse signal to the energization period. In a series of ideal pulse cycle sequences (such as a square wave), the ratio of the duration of the positive pulse to the total pulse period.
  • the duty cycle is the ratio of the time that the high level takes up within one cycle. For example, if a signal has a duty cycle of 50% (or a duty cycle of 0.5), it indicates that the high level (or positive level) of the signal takes 0.5 cycles.
  • the controller 120 is communicatively coupled to the filter 130, such that the controller 120 can transmit the generated PWM signal to the filter 130, so that the filter 130 is based on the PWM signal (specifically Is the duty cycle of the PWM signal) determining the feedback voltage value of the power converter 110 that requires feedback.
  • the PWM signal specifically Is the duty cycle of the PWM signal
  • the controller 120 may be a Micro Control Unit (MCU).
  • MCU Micro Control Unit
  • MCU also known as Single Chip Microcomputer or single-chip microcomputer, properly reduces the frequency and specifications of the CPU Central Process Unit, and uses memory, counter, USB, A/. D-conversion, UART, PLC, DMA and other peripheral interfaces, even LCD driver circuits are integrated on a single chip, forming a chip-level computer, for different combinations of different applications.
  • the filter 130 is communicatively coupled to the controller 120, thereby, the filtering
  • the controller 130 acquires a PWM signal from the controller 120.
  • a low pass filter can be used as the filter 130.
  • the low pass filter is an electronic filtering device that allows signals that pass below the cutoff frequency to pass, but signals that are higher than the cutoff frequency cannot pass.
  • the cutoff frequency may be a frequency lower than a high level of the PWM signal and higher than a low level of the PWM signal, so that a low level of the PWM signal can pass the PWM signal.
  • a device such as a timer may be disposed in the filter 130 to record the transmission duration of the PWM signal (including the transmission duration of the high-level signal and the transmission duration of the low-level signal) and the PWM signal.
  • the transmission duration of the filter 130 i.e., the transmission duration of the low level signal
  • the configuration of the filter 130 enumerated above is merely illustrative, and the configuration of the filter 130 can be arbitrarily changed while ensuring that the duty ratio of the PWM signal from the controller 120 can be determined.
  • the filter 130 is communicatively coupled to the power converter 110, such that the filter 130 can send a voltage feedback signal to the power converter 110 to facilitate the feedback of the power converter 110 according to the voltage feedback signal.
  • the voltage value adjusts the output voltage.
  • the filter 130 may determine the feedback voltage value based on the duty ratio of the received PWM signal. Subsequently, the process will be described in detail.
  • the feedback voltage value corresponding to the voltage feedback signal may refer to the voltage feedback signal being a signal having a certain voltage value, and the voltage value of the voltage signal is a feedback voltage value, or a voltage of the feedback voltage value.
  • the ratio of the value to the feedback voltage value is predetermined, that is, the filter 130 and the power converter 110 determine the feedback voltage value based on the voltage value of the feedback voltage value.
  • the voltage feedback signal may be a signal capable of carrying indication information, and the indication information of the specific value of the feedback voltage value can be carried in the voltage feedback signal.
  • the structure of the adapter 100 enumerated above is merely exemplary, and the present invention is not limited thereto, and the adapter 100 may further include various components included in the power adapter of the prior art. For example, a voltage divider, a control switch, a fuse protection device, and the like, and detailed description thereof will be omitted herein to avoid redundancy.
  • FIG. 2 shows a schematic structural diagram of an adapter 200 according to an embodiment of the present invention, as shown in FIG. 2,
  • the adapter 200 includes:
  • a power converter 210 configured to obtain an alternating current from a power source, and convert the alternating current into direct current
  • the controller 220 is configured to generate and send a pulse width modulated PWM signal according to the first adjustment policy and the first mapping relationship information, so that the power converter adjusts the output voltage of the direct current to correspond to the first adjustment strategy,
  • the first mapping relationship information is used to indicate a one-to-one correspondence between at least two adjustment policies including the first adjustment policy and at least two duty ratios, where each adjustment strategy includes an adjustment direction of the output voltage.
  • the indication information, the duty ratio of the PWM signal is a duty ratio corresponding to the first adjustment strategy indicated by the first mapping relationship information.
  • the controller 220 is communicatively coupled to the power converter 210.
  • Controller 220 The controller 120 described above differs in that the controller 220 transmits the generated PWM signal directly to the power converter 210.
  • Power converter 210 differs from power converter 110 described above in that power converter 210 can vary the output voltage of power converter 110 based on the PWM signal from controller 220. Subsequently, the process will be described in detail.
  • the action of the controller 120 or the controller 220 may be similar to the action of the controller in the method 300 described below, and the action of the power converter 110 or the power converter 210 may be the following method 300.
  • the operation of the medium power converter is similar, and the action of the filter 130 described above can be similar to the action of the filter in the method 300 described below.
  • FIG. 3 shows a schematic flow diagram of a method 300 for controlling an output voltage as described from the perspective of a controller, as shown in FIG. 3, the method 300 includes:
  • the controller acquires first mapping relationship information, where the first mapping relationship information is used to indicate a one-to-one correspondence between at least two adjustment policies and at least two duty ratios, where each adjustment policy includes a power converter. An indication of the direction of adjustment of the output voltage;
  • the controller determines a first adjustment strategy
  • the controller generates a pulse width modulation PWM signal according to the first adjustment strategy and the first mapping relationship information, where a duty ratio of the PWM signal is the first adjustment relationship information indicated by the first mapping relationship information Corresponding duty cycle;
  • the controller sends the PWM signal to cause the power converter to adjust the output voltage to correspond to the first adjustment strategy.
  • the controller may acquire information (ie, first mapping relationship information) for indicating a one-to-one correspondence between the plurality of adjustment policies and the plurality of duty ratios.
  • information ie, first mapping relationship information
  • the first mapping relationship information may be input by a user to the controller; or the first mapping relationship information may be preset by the manufacturer when the adapter or the controller is shipped from the factory. In the controller; or, the first mapping relationship information may be transmitted to the controller by an external device (for example, a device to be charged) through the above information transmission circuit or the like.
  • the controller may determine an adjustment strategy (ie, a first adjustment strategy) corresponding to the adjustment process of the output voltage for the power converter in the next adjustment period (ie, an example of the first period).
  • the current (ie, before the first time period) output current of the adapter (or power converter) is recorded as: I 0 ; the adapter (or power converter) is adjusted (ie, during the first time period) the output current is recorded as: I 1 ; the current (ie, before the first time period) output voltage of the adapter (or power converter) is recorded as: U 0 ; the adapter (or Said, the power converter) adjusted (ie, within the first time period) output voltage is recorded as: U 1 .
  • the controller determines that the first adjustment policy comprises:
  • the controller determines a target output current
  • the controller determines a first output current, the first output current being an output current of the power converter prior to the first time period;
  • the controller determines the first adjustment strategy according to a difference between the first output current and a preset target output current, wherein the first adjustment strategy is used to adjust an output voltage of the power converter during the first period So that the output current of the power converter in the first period approaches the target output current.
  • the controller can determine the adapter (or power controller) based on the current detecting loop.
  • the output current I 0 ie, the first output current
  • the next regulation period ie, before the first period
  • the controller can determine the target current based on the requirement of the charging current (for example, required by the external device or specified by the protocol) (hereinafter, for ease of understanding) And distinguishing, as: I d ), and determining a first adjustment strategy based on the difference between the first output current and the target current.
  • the load does not change (or the resistance of the external device does not change).
  • the controller may determine that the first regulation strategy is to increase the output voltage.
  • the controller 1 may further determine a specific value that the output voltage needs to be increased according to the difference between the first output current I 0 and the target current I d , thereby the first policy may be adjusted (denoted: ⁇ U) it is necessary to increase the output voltage value, so that equal or approximately equal to U 1 U 0 + ⁇ U.
  • the controller may further determine a specific value that the output voltage needs to be increased according to the value of the target current and the load of the charging circuit (for example, the resistance value of the external device), so that the first adjustment strategy may be that the output voltage needs to be increased.
  • the value of (to: U 2 ) is such that U 1 is equal to or approximately equal to U 2 .
  • the controller determines that the first adjustment strategy is to reduce the output voltage.
  • the controller may further determine a specific value that the output voltage needs to be reduced according to the difference between the first output current I 0 and the target current I d , thereby,
  • the first adjustment strategy may be a value at which the output voltage needs to be reduced (denoted as: ⁇ U') such that U 1 is equal to or approximately equal to U 0 - ⁇ U'.
  • the controller may further determine a specific value that the output voltage needs to be reduced according to the value of the target current and the load of the charging circuit (for example, the resistance value of the external device), so that the first adjustment strategy may be that the output voltage needs to be reduced.
  • the controller determines that the first adjustment policy comprises:
  • the controller determines a target output voltage
  • the controller determines a first output voltage, the first output voltage being an output voltage of the power converter prior to the first time period;
  • the controller determines the first adjustment strategy according to a difference between the first output voltage and a preset target output voltage, wherein the first adjustment strategy is used to adjust an output voltage of the power converter during the first time period So that the output voltage of the power converter in the first period approaches the target output voltage.
  • the controller may determine the adapter (or the power controller 110 based on the voltage detection loop). ) before the next adjustment period (i.e., before the first period) of the output voltage U 0 (i.e., a first output voltage).
  • the controller can determine the target voltage based on the charging voltage requirement (for example, required by the external device or specified by the protocol) (hereinafter, for ease of understanding) and distinguishing, denoted: U d), and a first difference between the output voltage and the target voltage is determined based on a first regulation strategy.
  • the charging voltage requirement for example, required by the external device or specified by the protocol
  • U d distinguishing
  • the controller may determine that the first adjustment strategy is to increase the output voltage.
  • the controller may further determine a specific value that the output voltage needs to be increased according to the difference between the first output voltage U 0 and the target voltage U d , thereby,
  • the first adjustment strategy may be a value (indicated as: ⁇ U) that the output voltage needs to be increased such that U 1 is equal to or approximately equal to U 0 + ⁇ U".
  • the controller may use the value U d of the target voltage as a specific value that the output voltage needs to be increased, so that the first adjustment strategy may be a value U d to which the output voltage needs to be increased, such that U 1 is equal to or approximately equal to U d .
  • the controller may determine that the first adjustment strategy is to reduce the output voltage.
  • the controller may further determine a specific value that the output voltage needs to be reduced according to the difference between the first output voltage and the target voltage, thereby, the first adjustment
  • the strategy can be a value that the output voltage needs to be reduced (denoted as: ⁇ U"') such that U 1 is equal to or approximately equal to U 0 - ⁇ U"'.
  • the controller may use the value U d of the target voltage as a specific value that the output voltage needs to be reduced, so that the first adjustment strategy may be a value U d to which the output voltage needs to be reduced, so that U 1 is equal to or approximately equal to U d .
  • the controller determines that the first adjustment policy comprises:
  • the controller receives control information sent by an external device, the external device is a device that accepts the output voltage, and the control information is used to determine the first adjustment policy;
  • the controller determines the first adjustment policy according to the control information.
  • the controller may receive control information from the external device based on the voltage detection loop, and based on The control information determines a first adjustment strategy.
  • control information includes at least one of the following: indication information of a current value of the charging current received by the external device, and a voltage value of the direct current received by the external device.
  • the indication information the indication information of the current value of the charging current desired by the external device, the indication information of the voltage value of the charging current desired by the external device, the indication information of the battery temperature of the external device, the indication information of the battery power of the external device, and the like.
  • control information included in the control information enumerated above is merely an exemplary description, and the present invention is not particularly limited.
  • Other indication information that can be used to determine parameters of the control policy falls within the scope of protection of the present invention, and is based on
  • the method for determining the adjustment policy by the foregoing control information may be similar to the prior art.
  • detailed description thereof is omitted.
  • the controller may determine the safe voltage range based on the user equipment or protocol regulations and the like.
  • the controller may determine the first adjustment strategy according to the safe voltage range, so that the first adjustment strategy is satisfied: the output voltage adjusted based on the first adjustment strategy is within the above-mentioned safe voltage range.
  • the controller can also monitor the loop of the adapter (or power converter) before the next adjustment period (ie, before the first time period) through the output voltage detection loop.
  • Output voltage ie, first output voltage
  • the controller may determine the first adjustment strategy according to the deviation of the monitored first output voltage from the safe voltage range. For example, if the first output voltage is greater than a maximum value of the safety voltage range, the controller may determine the first The adjustment strategy is to reduce the output voltage.
  • the controller may determine the safe current range based on the user equipment or protocol regulations and the like.
  • the controller may determine the first adjustment strategy according to the safe current range, so that the first adjustment strategy is satisfied: the output current adjusted based on the first adjustment strategy is within the safe current range.
  • the controller can also monitor the adapter (or power converter) through the output current detection loop before the next adjustment period (ie, before the first time period).
  • Output current ie, first output current
  • the controller may determine the first adjustment strategy according to the deviation of the monitored first output current from the safe current range. For example, if the first output current is greater than a maximum value of the safe current range, the controller may determine the first The adjustment strategy is to reduce the output voltage.
  • the manner of determining the first adjustment strategy described above may be used alone or in combination, and the present invention is not particularly limited.
  • the controller may query the first mapping relationship information acquired at S310 according to the first adjustment policy determined at S320 to determine a duty ratio corresponding to the first adjustment policy (hereinafter, for ease of understanding and distinction, Remember to do: first duty cycle).
  • the controller may generate a PWM signal having a duty ratio of the first duty ratio (hereinafter, for ease of understanding, it is referred to as a first PWM signal).
  • the first PWM signal (specifically, the first duty cycle) can indicate the first adjustment strategy determined as described above.
  • the controller can transmit the first PWM signal.
  • the controller sends the PWM signal, including:
  • the controller sends the PWM signal through a pin.
  • the PWM signal is a pulse signal, only one pin is required to be transmitted.
  • the controller may transmit the first PWM signal to the filter (ie, Case A), or, in the adapter, as shown in FIG.
  • the controller can send the first PWM signal to the power converter (ie, Case B).
  • the controller sends the PWM signal, including:
  • the controller sends the PWM signal to the filter, so that the filter generates a voltage feedback signal to be sent to the power converter based on the PWM signal and the second mapping relationship information, wherein the second mapping relationship information is used to indicate a one-to-one correspondence between the at least two duty ratios and the at least two feedback voltage values, and the feedback voltage value carried by the voltage feedback signal is a duty ratio of the PWM signal indicated by the second mapping relationship information Corresponding feedback voltage value.
  • the filter may acquire information (ie, second mapping relationship information) for indicating a one-to-one correspondence between the plurality of feedback voltage values and the plurality of duty ratios.
  • information ie, second mapping relationship information
  • the second mapping relationship information may have a user input to the filter; or the second mapping relationship information may be preset by the manufacturer when the adapter or the controller is shipped from the factory. In the filter; or the second mapping relationship information may be sent by the controller to the filter.
  • the adjustment strategy corresponding to the same duty ratio has a corresponding relationship with the feedback voltage value.
  • the adjustment strategy corresponding to the duty ratio A is the adjustment strategy A, and the feedback corresponding to the duty ratio A is set.
  • the voltage value is the feedback voltage value A, and the output voltage adjusted by the power converter based on the feedback voltage value A is the same as or approximately the same as the adjusted output voltage indicated by the adjustment strategy A.
  • the adjustment strategy A indicates that the output voltage is increased according to the specified step size
  • the output voltage is adjusted in such a manner that the output voltage is increased by a predetermined step.
  • the second mapping relationship may be that the larger the duty ratio, the larger the feedback voltage value.
  • the second mapping relationship information may be queried according to the duty ratio of the first PWM signal (ie, the first duty ratio), thereby determining the first duty ratio Corresponding feedback voltage value (recorded as: first feedback voltage value).
  • the filter can generate a voltage feedback signal (referred to as a first voltage feedback signal) corresponding to the first feedback voltage value.
  • the filter can send the first voltage feedback signal to the power converter.
  • the power converter After receiving the first voltage feedback signal, the power converter can identify a feedback voltage value corresponding to the first voltage feedback signal (ie, a first feedback voltage value), and further adjust the output according to the first feedback voltage value. Voltage.
  • the controller sends the PWM signal, including:
  • the controller sends the PWM signal to the power converter, so that the power converter determines the first adjustment strategy based on the PWM signal and the first mapping relationship information, and adjusts the output voltage based on the first adjustment strategy.
  • the power converter may acquire information (ie, first mapping relationship information) for indicating a one-to-one correspondence between the plurality of adjustment policies and the plurality of duty ratios.
  • information ie, first mapping relationship information
  • the first mapping relationship information may have a user input to the power converter; or the first mapping relationship information may be pre-prepared by the manufacturer when the adapter or the controller is shipped from the factory. It is disposed in the power converter; or the first mapping relationship information can be sent by the controller to the power converter.
  • the first mapping relationship information may be queried according to the duty ratio of the first PWM signal (ie, the first duty ratio), thereby determining the first duty Than the corresponding adjustment strategy (remember: the first adjustment strategy). Further, the output voltage can be adjusted according to the first adjustment strategy.
  • the power converter may acquire information (ie, second mapping relationship information) for indicating a one-to-one correspondence between the plurality of feedback voltage values and the plurality of duty ratios.
  • the second mapping relationship information may have a user input to the power converter; or the second mapping relationship information may be pre-prepared by the manufacturer when the adapter or the controller is shipped from the factory. It is disposed in the power converter; or the second mapping relationship information can be sent by the controller to the power converter. It should be noted that the adjustment strategy corresponding to the same duty ratio has a corresponding relationship with the feedback voltage value.
  • the adjustment strategy corresponding to the duty ratio A is the adjustment strategy A, and the feedback corresponding to the duty ratio A is set.
  • the voltage value is the feedback voltage value A
  • the output voltage adjusted by the power converter based on the feedback voltage value A is the same as or approximately the same as the adjusted output voltage indicated by the adjustment strategy A. For example, if the adjustment strategy A indicates that the output voltage is increased according to the specified step size, after the power converter receives the feedback voltage value A, the output voltage is adjusted in such a manner that the output voltage is increased by a predetermined step.
  • the second mapping relationship information may be queried according to the duty ratio of the first PWM signal (ie, the first duty ratio), thereby determining the first duty
  • the corresponding feedback voltage value (referred to as: the first feedback voltage value). Further, the output voltage can be adjusted according to the first feedback voltage value.
  • a method for controlling an output voltage causes a controller to generate a PWM signal having a duty ratio corresponding to a first adjustment strategy, and controls a power converter to adjust an output voltage by the PWM signal, since the PWM signal can pass One pin is transmitted, so the pin resource overhead of the controller can be reduced, the efficiency of the controller can be improved, and since the first adjustment strategy is determined using the duty ratio of the PWM signal, only the PWM signal needs to be identified.
  • the air ratio enables control of the output voltage of the power converter, thereby reducing the cost without using the costly digital potentiometers of the prior art.
  • Figure 5 shows an illustration of a method 400 for controlling an output voltage as described from the perspective of a controller.
  • the method 400 includes:
  • the filter acquires the second mapping relationship information, where the second mapping relationship information is used to indicate a one-to-one correspondence between the at least two duty ratios and the at least two feedback voltage values;
  • the filter receives a pulse width modulation PWM signal sent by the controller, where the PWM signal is determined by the controller according to the first adjustment policy and the first mapping relationship information, where the first mapping relationship information is used to indicate that the first adjustment is included a one-to-one correspondence between at least two adjustment strategies including at least two duty ratios, wherein each adjustment strategy includes indication information of an adjustment direction of an output voltage of the power converter, and duty of the PWM signal Comparing a duty ratio corresponding to the first adjustment strategy indicated by the first mapping relationship information;
  • the filter generates a voltage feedback signal according to the PWM signal and the second mapping relationship information, and the feedback voltage value corresponding to the voltage feedback signal corresponds to the duty ratio of the PWM signal indicated by the second mapping relationship information.
  • Feedback voltage value
  • the filter sends the voltage feedback signal to the power converter, so that the power converter adjusts the output voltage according to the voltage feedback signal.
  • the filter receives the PWM signal sent by the controller, including:
  • the filter receives the PWM signal sent by the controller through a pin.
  • the structure of the filter in the method 400 is similar to the structure of the filter 130 described above in FIG. 1.
  • the processing of the filter in the method 400 is similar to the processing of the filter described in the method 300 above. Here, in order to avoid redundancy The detailed description is omitted.
  • a method for controlling an output voltage causes a controller to generate a PWM signal having a duty ratio corresponding to a first adjustment strategy, and controls a power converter to adjust an output voltage by the PWM signal, since the PWM signal can pass One pin is transmitted, so the pin resource overhead of the controller can be reduced, the efficiency of the controller can be improved, and since the first adjustment strategy is determined using the duty ratio of the PWM signal, only the PWM signal needs to be identified.
  • the air ratio enables control of the output voltage of the power converter, thereby reducing the cost without using the costly digital potentiometers of the prior art.
  • FIG. 6 shows a schematic flow diagram of a method 500 for controlling an output voltage as described from a power adapter perspective, as shown in FIG. 6, the method 500 including:
  • the power converter acquires first mapping relationship information, where the first mapping relationship information is used to indicate a one-to-one correspondence between at least two adjustment policies and at least two duty ratios, where each adjustment strategy includes an output voltage. Indication information for adjusting direction;
  • the power converter receives a pulse width modulated PWM signal sent by the controller, where the PWM signal is determined by the controller according to the first adjustment strategy and the first mapping relationship information, and the duty ratio of the PWM signal is the first mapping a duty ratio indicated by the relationship information corresponding to the first adjustment strategy;
  • the power converter determines the first adjustment strategy according to the PWM signal and the first mapping relationship
  • the power converter adjusts an output voltage according to the first adjustment strategy.
  • the power converter receives the PWM signal sent by the controller, including:
  • the power converter receives the PWM signal sent by the controller through a pin.
  • each adjustment strategy includes indication information of the adjustment magnitude of the output voltage.
  • the structure of the power converter in the method 500 is similar to that of the power converter 210 described above in FIG. 2, the processing of the filter in the method 500 and the processing of the power converter described in the method 300 above (eg, the case)
  • the processing procedure described in B is similar, and a detailed description thereof will be omitted herein to avoid redundancy.
  • a method for controlling an output voltage causes a controller to generate a PWM signal having a duty ratio corresponding to a first adjustment strategy, and controls a power converter to adjust an output voltage by the PWM signal, since the PWM signal can pass One pin is transmitted, so the pin resource overhead of the controller can be reduced, the efficiency of the controller can be improved, and since the first adjustment strategy is determined using the duty ratio of the PWM signal, only the PWM signal needs to be identified.
  • the air ratio enables control of the output voltage of the power converter, thereby reducing the cost without using the costly digital potentiometers of the prior art.
  • FIG. 7 is a schematic block diagram of an apparatus 600 for controlling an output voltage, in accordance with an embodiment of the present invention. As shown in FIG. 7, the apparatus 600 includes:
  • the obtaining unit 610 is configured to obtain first mapping relationship information, where the first mapping relationship information is used to indicate a one-to-one correspondence between at least two adjustment policies and at least two duty ratios, where each adjustment policy includes power Indication information of the direction in which the output voltage of the converter is adjusted;
  • a determining unit 620 configured to determine a first adjustment policy
  • a generating unit 630 configured to generate a pulse according to the first adjustment policy and the first mapping relationship information The width modulation PWM signal, wherein the duty ratio of the PWM signal is a duty ratio corresponding to the first adjustment strategy indicated by the first mapping relationship information;
  • the transceiver unit 640 is configured to send the PWM signal, so that the adjustment of the output voltage by the power converter corresponds to the first adjustment strategy.
  • the transceiver unit 640 is configured to send the PWM signal through a pin.
  • the transceiver unit 640 is configured to send the PWM signal to the filter, so that the filter generates a voltage feedback signal that needs to be sent to the power converter based on the PWM signal and the second mapping relationship information, where the The second mapping relationship information is used to indicate a one-to-one correspondence between the at least two duty ratios and the at least two feedback voltage values, and the feedback voltage value corresponding to the voltage feedback signal is indicated by the second mapping relationship information.
  • the duty cycle of the PWM signal corresponds to the feedback voltage value.
  • the transceiver unit 640 is configured to send the PWM signal to the power converter, so that the power converter determines the first adjustment policy based on the PWM signal and the first mapping relationship information, and based on the first The regulation strategy adjusts the output voltage.
  • each adjustment strategy further includes indication information of a magnitude of the adjustment of the output voltage of the power converter.
  • the transceiver unit 640 is configured to receive control information sent by an external device, where the external device is a device that accepts the output voltage, where the control information is used to determine the first adjustment policy;
  • the determining unit 620 is configured to determine the first adjustment policy according to the control information.
  • the determining unit 620 is configured to determine a target output voltage
  • the determining unit 620 is configured to determine a first output voltage, where the first output voltage is an output voltage of the power converter before the first time period;
  • the determining unit 620 is configured to determine the first adjustment policy according to a difference between the first output voltage and a preset target output voltage, where the first adjustment strategy is used to adjust the power converter during the first time period
  • the output voltage is such that the output voltage of the power converter during the first period approaches the target output voltage.
  • the device 600 for controlling the output voltage may be embedded or itself an adapter, the device 600 may correspond to the controller in the embodiment of the present invention, and each unit in the device 600 is
  • the modules and the other operations and/or functions described above are respectively implemented in order to implement the corresponding processes of the method 300 in FIG. 3, and are not described herein again for brevity.
  • a device for controlling an output voltage causes a controller to generate a duty ratio and
  • the first adjustment strategy corresponds to the PWM signal, and the PWM signal is used to control the power converter to adjust the output voltage. Since the PWM signal can be transmitted through one pin, the controller's pin resource overhead can be reduced, and the controller is improved. Efficiency is used, and since the first adjustment strategy is determined using the duty cycle of the PWM signal, only the duty cycle of the PWM signal needs to be identified to enable control of the output voltage of the power converter, thereby eliminating the need to use prior art Higher cost digital potentiometers can reduce costs.
  • FIG. 8 is a schematic block diagram of an apparatus 700 for controlling an output voltage in accordance with another embodiment of the present invention. As shown in FIG. 8, the apparatus 700 includes:
  • the obtaining unit 710 is configured to obtain the second mapping relationship information, where the second mapping relationship information is used to indicate a one-to-one correspondence between the at least two duty ratios and the at least two feedback voltage values;
  • the transceiver unit 720 is configured to receive a pulse width modulation PWM signal sent by the controller, where the PWM signal is determined by the controller according to the first adjustment policy and the first mapping relationship information, where the first mapping relationship information is used to indicate that the first a one-to-one correspondence between at least two adjustment strategies including at least two adjustment strategies, wherein each adjustment strategy includes indication information of an adjustment direction of an output voltage of the power converter, and the PWM signal
  • the null ratio is a duty ratio corresponding to the first adjustment strategy indicated by the first mapping relationship information
  • the generating unit 730 is configured to generate a voltage feedback signal according to the PWM signal and the second mapping relationship information, where the feedback voltage value corresponding to the voltage feedback signal is the duty ratio of the PWM signal indicated by the second mapping relationship information Corresponding feedback voltage value;
  • the transceiver unit 720 is configured to send the voltage feedback signal to the power converter, so that the power converter adjusts the output voltage according to the voltage feedback signal.
  • the transceiver unit 720 is configured to receive the PWM signal sent by the controller through a pin.
  • the apparatus 700 for controlling the output voltage may be embedded or itself an adapter, the apparatus 700 may correspond to the filter in the embodiment of the present invention, and each unit in the apparatus 700
  • the modules and the other operations and/or functions described above are respectively implemented in order to implement the corresponding processes of the method 400 in FIG. 5, and are not described herein again for brevity.
  • the apparatus for controlling an output voltage causes a controller to generate a PWM signal having a duty ratio corresponding to a first adjustment strategy, and controls the power converter to adjust an output voltage by the PWM signal, because the PWM signal can pass One pin is transmitted, thus reducing the pin resource overhead of the controller, improving the efficiency of the controller, and, due to the use of the PWM signal
  • the duty cycle of the number determines the first adjustment strategy, so that only the duty cycle of the PWM signal needs to be identified to enable control of the output voltage of the power converter, thereby eliminating the need for costly digital potentiometers in the prior art. Can reduce costs.
  • FIG. 9 is a schematic block diagram of an apparatus 800 for controlling an output voltage in accordance with still another embodiment of the present invention. As shown in FIG. 9, the apparatus 800 includes:
  • the obtaining unit 810 is configured to obtain first mapping relationship information, where the first mapping relationship information is used to indicate a one-to-one correspondence between at least two adjustment policies and at least two duty ratios, where each adjustment policy includes an output Indication information of the direction in which the voltage is adjusted;
  • the transceiver unit 820 is configured to receive a pulse width modulated PWM signal sent by the controller, where the PWM signal is determined by the controller according to the first adjustment strategy and the first mapping relationship information, where the duty ratio of the PWM signal is the first mapping a duty ratio indicated by the relationship information corresponding to the first adjustment strategy;
  • a determining unit 830 configured to determine the first adjustment policy according to the PWM signal and the first mapping relationship
  • the processing unit 840 is configured to adjust the output voltage according to the first adjustment strategy.
  • the transceiver unit 820 is configured to receive the PWM signal sent by the controller through a pin.
  • each adjustment strategy includes indication information of the adjustment magnitude of the output voltage.
  • the device 800 for controlling the output voltage may be embedded or itself an adapter, and the device 800 may correspond to the power converter in the embodiment of the present invention, and each unit in the device 800 That is, the modules and the other operations and/or functions described above are respectively implemented in order to implement the corresponding processes of the method 500 in FIG. 6, and are not described herein again for brevity.
  • the apparatus for controlling an output voltage causes a controller to generate a PWM signal having a duty ratio corresponding to a first adjustment strategy, and controls the power converter to adjust an output voltage by the PWM signal, because the PWM signal can pass One pin is transmitted, so the pin resource overhead of the controller can be reduced, the efficiency of the controller can be improved, and since the first adjustment strategy is determined using the duty ratio of the PWM signal, only the PWM signal needs to be identified.
  • the air ratio enables control of the output voltage of the power converter, thereby reducing the cost without using the costly digital potentiometers of the prior art.
  • FIG. 10 is a schematic block diagram of an apparatus 900 for controlling an output voltage, as shown in FIG. 10, including a processor 910 and a transceiver 920, a processor, in accordance with an embodiment of the present invention.
  • the 910 is coupled to the transceiver 920.
  • the device 900 further includes a memory 930 coupled to the processor 910.
  • the device 900 includes a bus system 940.
  • the processor 910, the memory 930, and the transceiver 920 can be connected by a bus system 940, which can be used to store instructions for executing instructions stored in the memory 930 to control the transceiver 920 to send information or signal,
  • the processor 910 is configured to acquire first mapping relationship information, where the first mapping relationship information is used to indicate a one-to-one correspondence between at least two adjustment policies and at least two duty ratios, where each adjustment policy includes power Indication information of the direction in which the output voltage of the converter is adjusted;
  • the processor 910 is configured to determine a first adjustment policy
  • the processor 910 is configured to generate a pulse width modulated PWM signal according to the first adjustment policy and the first mapping relationship information, where a duty ratio of the PWM signal is indicated by the first mapping relationship information and the first adjustment strategy Corresponding duty cycle;
  • the processor 910 is configured to control the transceiver 920 to send the PWM signal such that the power converter adjusts the output voltage to correspond to the first adjustment strategy.
  • the processor 910 is configured to control the transceiver 920 to send the PWM signal through a pin.
  • the processor 910 is configured to control the transceiver 920 to send the PWM signal to the filter, so that the filter generates a voltage feedback signal that needs to be sent to the power converter based on the PWM signal and the second mapping relationship information.
  • the second mapping relationship information is used to indicate a one-to-one correspondence between the at least two duty ratios and the at least two feedback voltage values, and the feedback voltage value corresponding to the voltage feedback signal is the second mapping relationship.
  • the information indicates a feedback voltage value corresponding to the duty cycle of the PWM signal.
  • the processor 910 is configured to control the transceiver 920 to send the PWM signal to the power converter, so that the power converter determines the first adjustment policy based on the PWM signal and the first mapping relationship information, And adjusting the output voltage based on the first adjustment strategy.
  • each adjustment strategy further includes indication information of a magnitude of the adjustment of the output voltage of the power converter.
  • the processor 910 is configured to control the transceiver 920 to receive control information sent by an external device, where the external device is a device that receives the output voltage, where the control information is used to determine the first adjustment policy;
  • the processor 910 is configured to determine the first adjustment policy according to the control information.
  • the processor 910 is configured to determine a target output voltage
  • the processor 910 is configured to determine a first output voltage, where the first output voltage is an output voltage of the power converter before the first time period;
  • the processor 910 is configured to determine the first adjustment strategy according to a difference between the first output voltage and a preset target output voltage, where the first adjustment strategy is used to adjust the power converter during the first time period.
  • the output voltage is such that the output voltage of the power converter during the first period approaches the target output voltage.
  • the device 900 for controlling the output voltage may be embedded or itself an adapter, the device 900 may correspond to the controller in the embodiment of the present invention, and each unit in the device 900 is
  • the modules and the other operations and/or functions described above are respectively implemented in order to implement the corresponding processes of the method 300 in FIG. 3, and are not described herein again for brevity.
  • An apparatus for controlling an output voltage causes a controller to generate a PWM signal having a duty ratio corresponding to a first adjustment strategy, and controls a power converter to adjust an output voltage by the PWM signal, because the PWM signal can pass One pin is transmitted, so the pin resource overhead of the controller can be reduced, the efficiency of the controller can be improved, and since the first adjustment strategy is determined using the duty ratio of the PWM signal, only the PWM signal needs to be identified.
  • the air ratio enables control of the output voltage of the power converter, thereby reducing the cost without using the costly digital potentiometers of the prior art.
  • FIG. 11 is a schematic block diagram of an apparatus 1000 for controlling an output voltage, as shown in FIG. 11, the apparatus 1000 includes a processor 1010 and a transceiver 1020, a processor 1010 and a transceiver 1020, in accordance with another embodiment of the present invention.
  • the device 1000 further includes a memory 1030 that is coupled to the processor 1010.
  • the device 1000 includes a bus system 1040.
  • the processor 1010, the memory 1030, and the transceiver 1020 can be connected by a bus system 1040.
  • the memory 1030 can be used to store instructions for executing the instructions stored by the memory 1030 to control the transceiver 1020 to send information or signal,
  • the processor 1010 is configured to acquire second mapping relationship information, where the second mapping relationship information is used to indicate a one-to-one correspondence between the at least two duty ratios and at least two feedback voltage values;
  • the processor 1010 is configured to control the transceiver 1020 to receive a pulse width modulated PWM signal sent by the controller, where the PWM signal is determined by the controller according to the first adjustment policy and the first mapping relationship information, where the first mapping relationship information is used to indicate a one-to-one correspondence between at least two adjustment strategies including the first adjustment strategy and at least two duty ratios, wherein each adjustment strategy includes An indication information of an adjustment direction of an output voltage of the power converter, where a duty ratio of the PWM signal is a duty ratio corresponding to the first adjustment strategy indicated by the first mapping relationship information;
  • the processor 1010 is configured to generate a voltage feedback signal according to the PWM signal and the second mapping relationship information, where the feedback voltage value corresponding to the voltage feedback signal is the duty ratio of the PWM signal indicated by the second mapping relationship information. Corresponding feedback voltage value;
  • the processor 1010 is configured to control the transceiver 1020 to send the voltage feedback signal to the power converter, so that the power converter adjusts the output voltage according to the voltage feedback signal.
  • the processor 1010 is configured to control the transceiver 1020 to receive the PWM signal sent by the controller through a pin.
  • the device 1000 for controlling the output voltage may be embedded or itself an adapter, the device 1000 may correspond to a filter in the embodiment of the present invention, and each unit in the device 1000 is
  • the modules and the other operations and/or functions described above are respectively implemented in order to implement the corresponding processes of the method 400 in FIG. 5, and are not described herein again for brevity.
  • An apparatus for controlling an output voltage causes a controller to generate a PWM signal having a duty ratio corresponding to a first adjustment strategy, and controls a power converter to adjust an output voltage by the PWM signal, because the PWM signal can pass One pin is transmitted, so the pin resource overhead of the controller can be reduced, the efficiency of the controller can be improved, and since the first adjustment strategy is determined using the duty ratio of the PWM signal, only the PWM signal needs to be identified.
  • the air ratio enables control of the output voltage of the power converter, thereby reducing the cost without using the costly digital potentiometers of the prior art.
  • FIG. 12 is a schematic block diagram of an apparatus 1100 for controlling an output voltage, as shown in FIG. 12, including a processor 1110 and a transceiver 1120, a processor 1110, and a transceiver 1120, in accordance with still another embodiment of the present invention.
  • the device 1100 also includes a memory 1130 that is coupled to the processor 1110.
  • the device 1100 includes a bus system 1140.
  • the processor 1110, the memory 1130, and the transceiver 1120 may be connected by a bus system 1140, where the memory 1130 may be used to store instructions, and the processor 1110 is configured to execute instructions stored by the memory 1130 to control the transceiver 1120 to send information or signal,
  • the processor 1110 is configured to acquire first mapping relationship information, where the first mapping relationship information is used to indicate a one-to-one correspondence between at least two adjustment policies and at least two duty ratios, where each adjustment policy includes an output. Indication information of the direction in which the voltage is adjusted;
  • the processor 1110 is configured to control the transceiver 1120 to receive a pulse width modulation sent by a controller.
  • a PWM signal the PWM signal is determined by the controller according to the first adjustment strategy and the first mapping relationship information, where the duty ratio of the PWM signal is the first mapping relationship information corresponding to the first adjustment strategy Air ratio
  • the processor 1110 is configured to determine the first adjustment policy according to the PWM signal and the first mapping relationship
  • the processor 1110 is configured to adjust an output voltage according to the first adjustment strategy.
  • the processor 1110 is configured to control the transceiver 1120 to receive a PWM signal sent by the controller through a pin.
  • each adjustment strategy includes indication information of the adjustment magnitude of the output voltage.
  • the device 1100 for controlling the output voltage may be embedded or itself an adapter, and the device 1100 may correspond to the power controller in the embodiment of the present invention, and each unit in the device 1100 That is, the modules and the other operations and/or functions described above are respectively implemented in order to implement the corresponding processes of the method 500 in FIG. 6, and are not described herein again for brevity.
  • An apparatus for controlling an output voltage causes a controller to generate a PWM signal having a duty ratio corresponding to a first adjustment strategy, and controls a power converter to adjust an output voltage by the PWM signal, because the PWM signal can pass One pin is transmitted, so the pin resource overhead of the controller can be reduced, the efficiency of the controller can be improved, and since the first adjustment strategy is determined using the duty ratio of the PWM signal, only the PWM signal needs to be identified.
  • the air ratio enables control of the output voltage of the power converter, thereby reducing the cost without using the costly digital potentiometers of the prior art.
  • the processor may be an integrated circuit chip with signal processing capabilities.
  • each step of the foregoing method embodiment may be completed by an integrated logic circuit of hardware in a processor or an instruction in a form of software.
  • the processor may be a general-purpose processor, a digital signal processor (DSP), an application specific integrated circuit (ASIC), a Field Programmable Gate Array (FPGA), or the like. Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • the methods, steps, and logical block diagrams disclosed in the embodiments of the present invention may be implemented or carried out.
  • the general purpose processor may be a microprocessor or the processor or any conventional processor or the like.
  • the steps of the method disclosed in the embodiments of the present invention may be directly implemented by the hardware decoding processor, or may be performed by a combination of hardware and software modules in the decoding processor.
  • Software modules can be located in random storage , flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other mature storage media in the field.
  • the storage medium is located in the memory, and the processor reads the information in the memory and combines the hardware to complete the steps of the above method.
  • the memory in the embodiments of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory may be a read-only memory (ROM), a programmable read only memory (PROM), an erasable programmable read only memory (Erasable PROM, EPROM), or an electric Erase programmable read only memory (EEPROM) or flash memory.
  • the volatile memory can be a Random Access Memory (RAM) that acts as an external cache.
  • RAM Random Access Memory
  • many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (Synchronous DRAM).
  • SDRAM Double Data Rate SDRAM
  • DDR SDRAM Double Data Rate SDRAM
  • ESDRAM Enhanced Synchronous Dynamic Random Access Memory
  • SLDRAM Synchronous Connection Dynamic Random Access Memory
  • DR RAM direct memory bus random access memory
  • the size of the sequence numbers of the above processes does not mean the order of execution, and the order of execution of each process should be determined by its function and internal logic, and should not be directed to the embodiments of the present invention.
  • the implementation process constitutes any limitation.
  • the disclosed systems, devices, and methods may be implemented in other manners.
  • the device embodiments described above are merely illustrative
  • the division of the unit is only a logical function division, and the actual implementation may have another division manner, for example, multiple units or components may be combined or may be integrated into another system, or some features may be Ignore, or not execute.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the functions may be stored in a computer readable storage medium if implemented in the form of a software functional unit and sold or used as a standalone product.
  • the technical solution of the present invention which is essential or contributes to the prior art, or a part of the technical solution, may be embodied in the form of a software product, which is stored in a storage medium, including
  • the instructions are used to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform all or part of the steps of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. .

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Dc-Dc Converters (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

提供一种用于控制输出电压的方法和装置以及适配器,该方法包括:控制器获取第一映射关系信息,该第一映射关系信息用于指示至少两种调节策略与至少两种占空比之间的一一对应关系,其中,每个调节策略包括功率转换器的输出电压的调节方向的指示信息;该控制器确定第一调节策略;该控制器根据第一调节策略和该第一映射关系信息,生成脉冲宽度调制PWM信号,其中,该PWM信号的占空比为该第一映射关系信息指示的与该第一调节策略相对应的占空比;该控制器发送该PWM信号,以使该功率转换器对输出电压的调节与该第一调节策略相对应,能够提高充电的安全性,降低成本,提高器件使用效率。

Description

用于控制输出电压的方法和装置以及适配器 技术领域
本发明涉及充电技术领域,并且更具体地,涉及用于控制输出电压的方法和装置以及适配器。
背景技术
目前,例如手机等电子设备通常都配置有能够充电的电池,从而能够通过适配器对该电池进行充电。
在充电时,适配器通过功率转换器将交流电转换为直流电并传输至电子设备。当适配器的输出电压过大时,可能导致电池发生损坏甚至爆炸等情况的发生,严重影响了使用安全性。
目前已知一种控制输出电压的方法,通过在适配器内设置控制器和数字电位器,并由该控制通过内置集成电路(I2C,inter-integrated circuit)指令控制数字电位器,使得数字电位器的滑动抽头上下滑动,从而使功率转换器的交流-直流(AC-DC,Alternating Current-Direct Current)控制芯片的反馈引脚上的电平发生改变,AC-DC控制芯片根据其反馈引脚上的电平变化,改变功率转换器的输出电压,从而提高适配器的使用安全性。
但是,数字电位器成本高,并且,用于控制数字电位器的I2C指令需要通过具有至少两个引脚的接口传输,即,为了控制数字电位器,需要占用控制器的至少两个引脚,影响了控制器的使用效率。
发明内容
本发明实施例提供一种用于控制输出电压的方法和装置以及适配器,能够提高充电的安全性,降低成本,提高器件使用效率。
第一方面,提供了一种用于控制输出电压的方法,该方法包括:控制器获取第一映射关系信息,该第一映射关系信息用于指示至少两种调节策略与至少两种占空比之间的一一对应关系,其中,每个调节策略包括功率转换器的输出电压的调节方向的指示信息;该控制器确定第一调节策略;该控制器根据第一调节策略和该第一映射关系信息,生成脉冲宽度调制PWM信号,其中,该PWM信号的占空比为该第一映射关系信息指示的与该第一调节策 略相对应的占空比;该控制器发送该PWM信号,以使该功率转换器对输出电压的调节与该第一调节策略相对应。
结合第一方面,在第一方面的第一种实现方式中,该控制器发送该PWM信号,包括:该控制器通过一个引脚,发送该PWM信号。
结合第一方面及其上述实现方式,在第一方面的第二种实现方式中,该控制器发送该PWM信号,包括:该控制器向滤波器发送该PWM信号,以便于该滤波器基于该PWM信号和第二映射关系信息,生成需要发送至功率转换器的电压反馈信号,其中,该第二映射关系信息用于指示该至少两种占空比与至少两个反馈电压值之间的一一对应关系,该电压反馈信号所对应的反馈电压值为该第二映射关系信息指示的与该PWM信号的占空比相对应的反馈电压值。
结合第一方面及其上述实现方式,在第一方面的第三种实现方式中,该控制器发送该PWM信号,包括:该控制器向该功率转换器发送该PWM信号,以便于该功率转换器基于该PWM信号和该第一映射关系信息,确定该第一调节策略,并基于该第一调节策略调节输出电压。
结合第一方面及其上述实现方式,在第一方面的第四种实现方式中,每个调节策略还包括该功率转换器的输出电压的调节大小的指示信息。
结合第一方面及其上述实现方式,在第一方面的第五种实现方式中,该控制器确定第一调节策略包括:该控制器接收外部设备发送的控制信息,该外部设备是接受该输出电压的设备,该控制信息用于确定该第一调节策略;
该控制器根据该控制信息,确定该第一调节策略。
结合第一方面及其上述实现方式,在第一方面的第六种实现方式中,该控制器确定第一调节策略包括:该控制器确定目标输出电压;该控制器确定第一输出电压,该第一输出电压是该功率转换器在第一时段之前的输出电压;该控制器根据该第一输出电压与预设的目标输出电压之间的差异,确定该第一调节策略,其中,该第一调节策略用于调节该功率转换器在该第一时段的输出电压,以使该功率转换器在该第一时段的输出电压接近该目标输出电压。
第二方面,提供了一种用于控制输出电压的方法,该方法包括:滤波器获取第二映射关系信息,该第二映射关系信息用于指示该至少两种占空比与至少两个反馈电压值之间的一一对应关系;该滤波器接收控制器发送的脉冲 宽度调制PWM信号,该PWM信号是控制器根据第一调节策略和第一映射关系信息确定的,该第一映射关系信息用于指示包括该第一调节策略在内的至少两种调节策略与至少两种占空比之间的一一对应关系,其中,每个调节策略包括功率转换器的输出电压的调节方向的指示信息,该PWM信号的占空比为该第一映射关系信息指示的与该第一调节策略相对应的占空比;该滤波器根据该PWM信号和第二映射关系信息,生成电压反馈信号,该电压反馈信号所对应的反馈电压值为该第二映射关系信息指示的与该PWM信号的占空比相对应的反馈电压值;该滤波器向该功率转换器发送该电压反馈信号,以便于该功率转换器根据该电压反馈信号,调节输出电压。
结合第二方面,在第二方面的第一种实现方式中,该滤波器接收控制器发送的PWM信号,包括:该滤波器通过一个引脚,接收该控制器发送的PWM信号。
第三方面,提供了一种用于控制输出电压的方法,该方法包括:功率转换器获取第一映射关系信息,该第一映射关系信息用于指示至少两种调节策略与至少两种占空比之间的一一对应关系,其中,每个调节策略包括输出电压的调节方向的指示信息;该功率转换器接收控制器发送的脉冲宽度调制PWM信号,该PWM信号是控制器根据第一调节策略和该第一映射关系信息确定的,该PWM信号的占空比为该第一映射关系信息指示的与该第一调节策略相对应的占空比;该功率转换器根据该PWM信号和该第一映射关系,确定该第一调节策略;该功率转换器根据该第一调节策略,调节输出电压。
结合第三方面,在第三方面的第一种实现方式中,该功率转换器接收控制器发送的PWM信号,包括:该功率转换器通过一个引脚,接收该控制器发送的PWM信号。
结合第三方面及其上述实现方式,在第三方面的第二种实现方式中,每个调节策略包括输出电压的调节大小的指示信息。
第四方面,提供了一种用于控制输出电压的装置,包括用于执行上述第一方面以及第一方面的各实现方式中的各步骤的单元。
第五方面,提供了一种用于控制输出电压的装置,包括用于执行上述第二方面以及第二方面的各实现方式中的各步骤的单元。
第六方面,提供了一种用于控制输出电压的装置,包括用于执行上述第三方面以及第三方面的各实现方式中的各步骤的单元。
第七方面,提供了一种用于控制输出电压的设备,包括存储器和处理器,该存储器用于存储计算机程序,该处理器用于从存储器中调用并运行该计算机程序,使得传输上行信息的设备执行上述第一方面,及其各种实现方式中的任一种用于控制输出电压的方法。
第八方面,提供了一种用于控制输出电压的设备,包括存储器和处理器,该存储器用于存储计算机程序,该处理器用于从存储器中调用并运行该计算机程序,使得传输上行信息的设备执行上述第二方面,及其各种实现方式中的任一种用于控制输出电压的方法。
第九方面,提供了一种用于控制输出电压的设备,包括存储器和处理器,该存储器用于存储计算机程序,该处理器用于从存储器中调用并运行该计算机程序,使得传输上行信息的设备执行上述第三方面,及其各种实现方式中的任一种用于控制输出电压的方法。
第十方面,提供了一种计算机程序产品,该计算机程序产品包括:计算机程序代码,当该计算机程序代码被配置在适配器中的控制器的收发单元、处理单元或收发器器、处理器运行时,使得控制器执行上述第一方面,及其各种实现方式中的任一种用于控制输出电压的方法。
第十一方面,提供了一种计算机程序产品,该计算机程序产品包括:计算机程序代码,当该计算机程序代码被配置在适配器中的滤波器的收发单元、处理单元或收发器器、处理器运行时,使得滤波器执行上述第二方面,及其各种实现方式中的任一种用于控制输出电压的方法。
第十二方面,提供了一种计算机程序产品,该计算机程序产品包括:计算机程序代码,当该计算机程序代码被配置在适配器中的功率转换器的收发单元、处理单元或收发器器、处理器运行时,使得功率转换器执行上述第三方面,及其各种实现方式中的任一种用于控制输出电压的方法。
第十三方面,提供了一种计算机可读存储介质,该计算机可读存储介质存储有程序,该程序使得配置在适配器中的控制器执行上述第一方面,及其各种实现方式中的任一种用于控制输出电压的方法。
第十四方面,提供了一种计算机可读存储介质,该计算机可读存储介质存储有程序,该程序使得配置在适配器中的滤波器执行上述第二方面,及其各种实现方式中的任一种用于控制输出电压的方法。
第十五方面,提供了一种计算机可读存储介质,该计算机可读存储介质 存储有程序,该程序使得配置在适配器中的功率转换器执行上述第三方面,及其各种实现方式中的任一种用于控制输出电压的方法。
第十六方面,提供了一种适配器,该适配器包括:功率转换器,用于从电源获取交流电,并将该交流电转换为直流电;控制器,用于根据第一调节策略和第一映射关系信息,生成并发送脉冲宽度调制PWM信号,以使该功率转换器对该直流电的输出电压的调节与该第一调节策略相对应,其中,该第一映射关系信息用于指示包括该第一调节策略在内的至少两种调节策略与至少两种占空比之间的一一对应关系,每个调节策略包括输出电压的调节方向的指示信息,该PWM信号的占空比为该第一映射关系信息指示的与该第一调节策略相对应的占空比。
结合第十六方面,在第十六方面的第一种实现方式中,该适配器还包括:滤波器,与该功率转换器和控制器通信连接,用于接收该PWM信号,根据该PWM信号和第二映射关系信息,生成电压反馈信号,向该功率转换器发送该电压反馈信号,其中,该第二映射关系信息用于指示该至少两种占空比与包括该电压反馈信号所携带的反馈电压值在内的至少两个反馈电压值之间的一一对应关系,该电压反馈信号所对应的反馈电压值为该第二映射关系信息指示的与该PWM信号的占空比相对应的反馈电压值;该功率转换器还用于根据该电压反馈信号,调节输出电压。
根据本发明实施例的用于控制输出电压的方法和装置以及适配器,使控制器生成占空比与第一调节策略相对应的PWM信号,并通过该PWM信号控制功率转换器调节输出电压,由于PWM信号能够通过一个引脚进行传输,因此,能够减少控制器的引脚资源开销,提高控制器的使用效率,并且,由于使用PWM信号的占空比确定第一调节策略,因此,仅需识别PWM信号的占空比便能够实现对功率转换器的输出电压的控制,从而无需使用现有技术中成本较高的数字电位器,能够降低成本。
附图说明
为了更清楚地说明本发明实施例的技术方案,下面将对本发明实施例中所需要使用的附图作简单地介绍,显而易见地,下面所描述的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。
图1是适用本发明实施例的用于控制输出电压的方法的适配器的一例的示意性结构图。
图2是适用本发明实施例的用于控制输出电压的方法的适配器的另一例的示意性结构图。
图3是根据本发明一实施例的用于控制输出电压的方法的示意性流程图。
图4是占空比与反馈电压值的对应关系的一例的示意图。
图5是根据本发明另一实施例的用于控制输出电压的方法的示意性流程图。
图6是根据本发明再一实施例的用于控制输出电压的方法的示意性流程图。
图7是根据本发明一实施例的用于控制输出电压的装置的示意性结构图。
图8是根据本发明另一实施例的用于控制输出电压的装置的示意性结构图。
图9是根据本发明再一实施例的用于控制输出电压的装置的示意性结构图。
图10是根据本发明一实施例的用于控制输出电压的设备的示意性框图。
图11是根据本发明另一实施例的用于控制输出电压的设备的示意性框图。
图12是根据本发明再一实施例的用于控制输出电压的设备的示意性框图。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
首先,结合图1和图2对适用本发明实施例的用于控制输出电压的方法和装置的适配器的结构进行说明。
图1示出了本发明一实施例的适配器100的示意性结构图,如图1所示,
该适配器100包括:
功率转换器110,用于从电源获取交流电,并将该交流电转换为直流电;
控制器120,用于根据第一调节策略和第一映射关系信息,生成并发送脉冲宽度调制PWM信号,以使该功率转换器对该直流电的输出电压的调节与该第一调节策略相对应,其中,该第一映射关系信息用于指示包括该第一调节策略在内的至少两种调节策略与至少两种占空比之间的一一对应关系,每个调节策略包括输出电压的调节方向的指示信息,该PWM信号的占空比为该第一映射关系信息指示的与该第一调节策略相对应的占空比;
滤波器130,与该功率转换器和控制器通信连接,用于接收该PWM信号,根据该PWM信号和第二映射关系信息,生成电压反馈信号,向该功率转换器发送该电压反馈信号,其中,该第二映射关系信息用于指示该至少两种占空比与包括该电压反馈信号所携带的反馈电压值在内的至少两个反馈电压值之间的一一对应关系,该电压反馈信号所对应的反馈电压值为该第二映射关系信息指示的与该PWM信号的占空比相对应的反馈电压值;
该功率转换器110还用于根据该电压反馈信号,调节输出电压。
下面,分别对上述各部件的结构进行详细说明。
A、功率转换器110
在本发明实施例中,该功率转换器110用于从电源获取交流电,并将该交流电转换为直流电。
具体地说,如图1所示,该适配器100在与外部电源连接时,该电源适配器在与外部电源之间可以形成供电回路,从而,该功率转换器110可以通过该供电回路从外部电源获取交流电流,进而并对该交流电流进行交流-直流变换处理,以生成具有直流电流。作为示例而非限定,该直流电流的电压(即,输出电压的一例)可以是例如,小于或等于5伏特。
另外,作为上述功率转换器110的交流-直流变换处理可以列举以下过程,
首先,功率转换器110对从外部电源(例如,电网)输入的例如,220伏特(V)或110V的交流电电压进行变压(例如,降压)处理,以获得规定的电压(例如,小于或等于5伏特)的交流电。
其后,功率转换器110对降压后的交流电进行整流滤波处理,得到所需要的电压的直流电压。
另外,尽管图中未示出,但在本发明实施例中,适配器可以包括电力输出端口,该电力输出端口可以进一步包括正极输出端口和负极输出端口,并且,该功率转换器可以与该正极输出端口和负极输出端口相连,从而如上所述生成的直流电压可以被施加至该正极输出端口上,从而在该正极输出端口和负极输出端口之间产生直流电压(即,输出电压的另一例)。
另外,在本发明实施例中,该电力输出端口可以是通用串行总线(USB,Universal Serial Bus)接口中用于传输电流的端口。
从而,在该适配器100(例如,经由充电线缆)与移动终端(例如,手机等电子设备)连接,例如,通过USB接口连接时,该电力输出端口可以与移动终端的电力输入端口连接,例如,该正极输出端口可以(例如,经由充电线缆)与移动终端的电力输入端口中的正极输入端口连接,该负极输出端口可以(例如,经由充电线缆)与移动终端的电力输入端口中的负极输入端口连接。并且,该正极输入端口可以与移动终端的电池的正极连接,该负极输入端口可以与移动终端的电池的负极连接。由此,当电源适配器与移动终端连接时,能够形成用于对移动终端的电池进行充电的充电回路。
另外,在本发明实施例中,功率转换器110可以对输出电压进行调节,例如,可以在功率转换器110中配置交流-直流(AC-DC,Alternating Current-Direct Current)控制芯片等控制元件,该控制元件可以基于来自后述滤波器的电压反馈信号所对应的反馈电压值改变功率转换器110的输出电压。
例如,在本发明实施例中,功率转换器110可以根据使输出电压与反馈电压值保持规定比例的方式,调节输出电压。或者,在本发明实施例中,反馈电压值可以为至少两种规定的电压值,其中,一种电压值指示调节策略为按照预设的调节量(或者说,调节步长)提高输出电压,另一种电压值指示调节策略为按照预设的调节量降低输出电压。
应理解,以上列举的功率转换器110基于反馈电压值调节输出电压的方法和过程仅为示例性说明,本发明并未特别限定,在本发明实施例中,功率转换器110基于反馈电压值调节输出电压的方法和过程还可以与现有技术相似,这里,为了避免赘述,省略其详细说明。
并且,在本发明实施例中,功率转换器110与滤波器130通信连接,从而,该功率转换器110能够从滤波器130获取反馈电压值。
B、控制器120
在本发明实施例中,控制器120用于确定针对输出电压的调节策略。
例如,在本发明实施例中,调节策略可以是指示针对输出电压的调节方向的策略,例如,该调节策略可以是提高输出电压或降低输出电压。
再例如,调节策略可以是指示针对输出电压的调节大小的策略,该调节策略可以是调节后的输出电压与调节前的输出电压的差值的指示信息,或者,该调节策略可以是调节后的输出电压需要达到的具体电压值。
在本发明实施例中,控制器可以周期性确定调节策略,并且,确定调节策略的周期可以是用户设定的,也可以是在出厂或软件升级时由制造商设的,还可以是标准协议规定的,本发明并未特别限定。
或者,在本发明实施例中,控制器也可以基于来自外部设备(例如,作为充电目标的电子设备)的指示确定调节策略。
并且,在本发明实施例中,控制器120可以具有以下用于确定调节策略的结构。
B1.输出电流检测回路
如图1所示,在本发明实施例中,在适配器中,在功率转换器110的直流电输出路径与控制器120之间可以配置输出电流检测回路。
并且,作为示例而非限定,该电流检测回路可以包括配置在该功率转换器110的输出端与该适配器的输出端之间的检流电阻,即,在本发明实施例中,该检流电阻相当于与外部设备串联连接,或者说,流经该检流电阻的电流与从该适配器的输出电流相同,检流电阻两端的电压与该适配器的输出电压成正比。
另外,为了避免该检流电阻产生过多的热量,并且为了减小检流电阻对输出电压的分压效果,在本发明实施例中,可以使该检流电阻的阻值较小,此情况下,该检流电阻两端的电压较小,因此,可以该电流检测回路还可以包括放大器(例如,差分放大器),从而,控制器120,例如,控制器120中的模拟数字转换器(ADC,Analog-to-digital converter),能够基于检流电阻的电阻值以及该放大器检测到的该检流电阻两端的电压值,容易地确定输出电流。
由此,控制器120能够基于该电流检测回路,确定适配器(或者,功率控制器110)的输出电流。
从而,在例如对外部设备采用恒流充电方式进行充电的等情况下,控制器120可以基于(例如,外部设备需要的或协议规定的)对充电电流的要求,确定目标电流,并基于输出电流与该目标电流的差异,确定调节策略,随后,对该过程进行详细说明。
B2.输出电压检测回路
如图1所示,在本发明实施例中,在适配器中,在功率转换器110的直流电输出路径与控制器120之间可以配置输出电压检测回路。
并且,作为示例而非限定,该电压检测回路可以包括用于检测适配器(或者,功率控制器110)的正极输出端口与负极输出端口之间的电压的电压传感器,并且,该电压传感器可以将所检测到的电压值经由该电压检测回路传输至控制器120。
或者,在本发明实施例中,该控制器120本身具有检测电压值的元件,从而,该电压检测回路可以为将适配器(或者,功率控制器110)的正极输出端口与负极输出端口与该控制器120相连的电路。
由此,控制器120能够基于该电压检测回路,确定适配器(或者,功率控制器110)的输出电压。
从而,在例如对外部设备采用恒压充电方式进行充电的等情况下,控制器120可以基于(例如,外部设备需要的或协议规定的)对充电电压的要求,确定目标电压,并基于输出电压与该目标电压的差异,确定调节策略,随后,对该过程进行详细说明。
B3.信息传输回路
如图1所示,在本发明实施例中,在本发明实施例中,适配器可以包括信息传输端口。并且,在本发明实施例中,该控制器120可以具有用于接收来自外部设备的信息的收发器。该信息传输端口可以与该收发器连接,形成信息传输回路。
从而,在该适配器(例如,经由充电线缆)与外部设备(例如,手机等电子设备)连接时,控制器120能够经由上述信息传输回路接收来自外部设备的控制信息(或者说,控制参数)。
进而,控制器可以基于该控制信息,确定调节策略,随后,对该过程进行详细说明。
需要说明的是,在本发明实施例中,该信息传输端口可以是USB接口 中用于传输数据或信号的端口。并且,该适配器可以配置有电子连接器(例如,连接器插口或连接器插头),上述适配器的电力输出端口和信息传输端口可以统一配置在该电源适配器的电子连接器中。并且,在本发明实施例中,上述电子连接器可以是USB连接器,例如,标准USB、Micro-USB和Mini-USB等。
在本发明实施例中,控制器120还用于根据调节策略生成脉冲宽度调制(PWM,Pulse Width Modulation)信号。具体地说,控制器120是基于调节策略确定PWM信号的占空比。随后,对该过程进行详细说明。
其中,脉冲宽度调制是一种模拟控制方式,其根据相应载荷的变化来调制晶体管基极或MOS管栅极的偏置,来实现晶体管或MOS管导通时间的改变,从而实现开关稳压电源输出的改变。这种方式能使电源的输出电压在工作条件变化时保持恒定。
PWM信号的波形(也可以称为PWM波形)是占空比可变的脉冲波形。
占空比是指脉冲信号的通电时间与通电周期之比。在一串理想的脉冲周期序列中(如方波),正脉冲的持续时间与脉冲总周期的比值。
占空比是指高电平在一个周期之内所占的时间比率。例如,如果一个信号占空比为50%(或者说,占空比为0.5),则表明该信号的高电平(或者说,正电平)所占时间为0.5个周期。
并且,在本发明实施例中,控制器120与滤波器130通信连接,从而,该控制器120能够将所生成的PWM信号传输至滤波器130,以便于滤波器130基于PWM信号(具体地说,是PWM信号的占空比)确定需要反馈值功率转换器110的反馈电压值。
另外,作为示例而非限定,在本发明实施例中,该控制器120可以是微控制单元(MCU,Microcontroller Unit)。
MCU又称单片微型计算机(Single Chip Microcomputer)或者单片机,是把中央处理器(CPU Central Process Unit)的频率与规格做适当缩减,并将内存(memory)、计数器(Timer)、USB、A/D转换、UART、PLC、DMA等周边接口,甚至LCD驱动电路都整合在单一芯片上,形成芯片级的计算机,为不同的应用场合做不同组合控制。
滤波器130
在本发明实施例中,滤波器130与控制器120通信连接,从而,该滤波 器130从控制器120获取PWM信号。
作为示例而非限定,在本发明实施例中,可以使用低通滤波器作为该滤波器130。低通滤波器是容许低于截止频率的信号通过,但高于截止频率的信号不能通过的电子滤波装置。在本发明实施例中,该截止频率可以是低于PWM信号的高电平的频率且高于PWM信号的低电平的频率,从而,该PWM信号的低电平能够通过PWM信号。并且,在本发明实施例中,可以在滤波器130中设置例如计时器等装置,以记录PWM信号的传输时长(包括高电平信号的传输时长和低电平信号的传输时长)和PWM信号能够通过该滤波器130的传输时长(即,低电平信号的传输时长),从而,能够确定该PWM信号的占空比。
应理解,以上列举的滤波器130的结构仅为示例性说明,在确保能够确定来自控制器120的PWM信号的占空比的情况下,可以任意变更滤波器130的结构。
在本发明实施例中,滤波器130与功率转换器110通信连接,从而,该滤波器130能够向功率转换器110发送电压反馈信号,以便于功率转换器110根据该电压反馈信号所对应的反馈电压值,调节输出电压。
并且,在本发明实施例中,该滤波器130可以基于所接收到的PWM信号的占空比,确定反馈电压值。随后,对该过程进行详细说明。
在本发明实施例中,该电压反馈信号所对应的反馈电压值可以是指电压反馈信号为具有一定电压值的信号,该电压信号的电压值为反馈电压值,或者,该反馈电压值的电压值与反馈电压值的比例是预先规定的,即,滤波器130和功率转换器110基于反馈电压值的电压值所确定反馈电压值相同。
或者,在本发明实施例中,该电压反馈信号可以是能够承载指示信息的信号,该反馈电压值的具体数值的指示信息能够承载于电压反馈信号中。
应理解,以上列举的电压反馈信号与反馈电压值的关系仅为示例性说明,本发明并未限定于此,只要能够使滤波器130和功率转换器110能够基于电压反馈信号协商反馈电压值即可。
应理解,以上列举的适配器100的结构仅为示例性说明,本发明并未限定于此,适配器100还可以包括现有技术中的电源适配器包括的各种部件。例如,分压器、控制开关、熔丝保护装置等,这里,为了避免赘述,省略其详细说明。
该图2示出了本发明一实施例的适配器200的示意性结构图,如图2所示,
该适配器200包括:
功率转换器210,用于从电源获取交流电,并将该交流电转换为直流电;
控制器220,用于根据第一调节策略和第一映射关系信息,生成并发送脉冲宽度调制PWM信号,以使该功率转换器对该直流电的输出电压的调节与该第一调节策略相对应,其中,该第一映射关系信息用于指示包括该第一调节策略在内的至少两种调节策略与至少两种占空比之间的一一对应关系,每个调节策略包括输出电压的调节方向的指示信息,该PWM信号的占空比为该第一映射关系信息指示的与该第一调节策略相对应的占空比。
其中,该控制器220与该功率转换器210通信连接。
控制器220上述控制器120的不同点在于,该控制器220将所生成的PWM信号直接发送至功率转换器210。
功率转换器210与上述功率转换器110的不同点在于,功率转换器210可以基于来自控制器220的PWM信号改变功率转换器110的输出电压。随后,对该过程进行详细说明。
下面,结合图3所示的本发明一实施例的用于控制输出电压的方法300,对本发明实施例的适配器的各部件的功能进行详细说明。即,在本发明实施例中,上述控制器120或控制器220的动作可以与下述方法300中控制器的动作相似,上述功率转换器110或功率转换器210的动作可以与下述方法300中功率转换器的动作相似,上述滤波器130的动作可以与下述方法300中滤波器的动作相似。
图3示出了从控制器角度描述的用于控制输出电压的方法300的示意性流程图,如图3所示,该方法300包括:
S310,控制器获取第一映射关系信息,该第一映射关系信息用于指示至少两种调节策略与至少两种占空比之间的一一对应关系,其中,每个调节策略包括功率转换器的输出电压的调节方向的指示信息;
S320,该控制器确定第一调节策略;
S330,该控制器根据第一调节策略和该第一映射关系信息,生成脉冲宽度调制PWM信号,其中,该PWM信号的占空比为该第一映射关系信息指示的与该第一调节策略相对应的占空比;
S340,该控制器发送该PWM信号,以使该功率转换器对输出电压的调节与该第一调节策略相对应。
具体地说,在S310,控制器可以获取用于指示多个调节策略与多个占空比的一一对应关系的信息(即,第一映射关系信息)。
并且,作为示例而非限定,在本发明实施例中,该第一映射关系信息可以有用户输入至控制器;或者,该第一映射关系信息可以由制造商在适配器或者控制器出厂时预设在控制器内;或者,该第一映射关系信息可以由外部设备(例如,待充电设备)通过上述信息传输回路等传输至控制器。
S320,控制器可以确定针对功率转换器在下一调节周期(即,第一时段的一例)内对输出电压的调节处理所对应的调节策略(即,第一调节策略)。
下面,对控制器确定第一调节策略的方式进行示例性说明。
以下,为了便于理解和说明,将适配器(或者说,功率转换器)当前的(即,第一时段之前的)输出电流记做:I0;将适配器(或者说,功率转换器)调节后的(即,第一时段内的)输出电流记做:I1;将适配器(或者说,功率转换器)当前的(即,第一时段之前的)输出电压记做:U0;将适配器(或者说,功率转换器)调节后的(即,第一时段内的)输出电压记做:U1
方式1
可选地,该控制器确定第一调节策略包括:
该控制器确定目标输出电流;
该控制器确定第一输出电流,该第一输出电流是该功率转换器在第一时段之前的输出电流;
该控制器根据该第一输出电流与预设的目标输出电流之间的差异,确定该第一调节策略,其中,该第一调节策略用于调节该功率转换器在该第一时段的输出电压,以使该功率转换器在该第一时段的输出电流接近该目标输出电流。
具体地说,如图1或图2所示,在本发明实施例中,如果在适配器中配置有输出电流检测回路,则控制器能够基于该电流检测回路,确定适配器(或者,功率控制器)的在下一调节周期之前(即,第一时段之前)的输出电流I0(即,第一输出电流)。
从而,在例如对外部设备采用恒流充电方式进行充电的等情况下,控制器可以基于(例如,外部设备需要的或协议规定的)对充电电流的要求,确 定目标电流(以下,为了便于理解和区分,记做:Id),并基于第一输出电流与该目标电流的差异,确定第一调节策略。
作为示例而非限定,在负载不变(或者说,外部设备的电阻值不变)的情况下。
例如,如果第一输出电流小于目标电流,则控制器可以确定第一调节策略为提高输出电压。可选地,如果第一输出电流I0小于目标电流Id,则控制器1可以根据该第一输出电流I0与目标电流Id的差值,进一步确定输出电压需要提高的具体值,从而,该第一调节策略可以为输出电压需要提高的数值(记做:ΔU),以使U1等于或近似等于U0+ΔU。或者,控制器可以根据该目标电流的值以及充电回路的负载(例如,外部设备的电阻值),进一步确定输出电压需要提高至的具体值,从而,该第一调节策略可以为输出电压需要提高至的数值(记做:U2),以使U1等于或近似等于U2
再例如,如果第一输出电流I0大于目标电流I1,则控制器确定第一调节策略为降低输出电压。可选地,如果第一输出电流I0大于目标电流Id,则控制器可以根据该第一输出电流I0与目标电流Id的差值,进一步确定输出电压需要降低的具体值,从而,该第一调节策略可以为输出电压需要降低的数值(记做:ΔU’),以使U1等于或近似等于U0-ΔU’。或者,控制器可以根据该目标电流的值以及充电回路的负载(例如,外部设备的电阻值),进一步确定输出电压需要减低至的具体值,从而,该第一调节策略可以为输出电压需要减低至的数值(记做:U2’),以使U1等于或近似等于U2’。
方式2
可选地,该控制器确定第一调节策略包括:
该控制器确定目标输出电压;
该控制器确定第一输出电压,该第一输出电压是该功率转换器在第一时段之前的输出电压;
该控制器根据该第一输出电压与预设的目标输出电压之间的差异,确定该第一调节策略,其中,该第一调节策略用于调节该功率转换器在该第一时段的输出电压,以使该功率转换器在该第一时段的输出电压接近该目标输出电压。
具体地说,如图1或图2所示,在本发明实施例中,如果在适配器中配置有输出电压检测回路,则控制器可以基于该电压检测回路,确定适配器(或 者,功率控制器110)的在下一调节周期之前(即,第一时段之前)的输出电压U0(即,第一输出电压)。
从而,在例如对外部设备采用恒压充电方式进行充电的等情况下,控制器可以基于(例如,外部设备需要的或协议规定的)对充电电压的要求,确定目标电压(以下,为了便于理解和区分,记做:Ud),并基于第一输出电压与该目标电压的差异,确定第一调节策略。
作为示例而非限定,例如,如果第一输出电压U0小于目标电压Ud,则控制器可以确定第一调节策略为提高输出电压。可选地,如果第一输出电压U0小于目标电压Ud,则控制器可以根据该第一输出电压U0与目标电压Ud的差值,进一步确定输出电压需要提高的具体值,从而,该第一调节策略可以为输出电压需要提高的数值(记做:ΔU”),以使U1等于或近似等于U0+ΔU”。或者,控制器可以将该目标电压的值Ud作为输出电压需要提高至的具体值,从而,该第一调节策略可以为输出电压需要提高至的数值Ud,以使U1等于或近似等于Ud
再例如,如果第一输出电压U0大于目标电压Ud,则控制器可以确定第一调节策略为降低输出电压。可选地,如果第一输出电压U0大于目标电压Ud,则控制器可以根据该第一输出电压与目标电压的差值,进一步确定输出电压需要降低的具体值,从而,该第一调节策略可以为输出电压需要降低的数值(记做:ΔU”’),以使U1等于或近似等于U0-ΔU”’。或者,控制器可以将该目标电压的值Ud作为输出电压需要减低至的具体值,从而,该第一调节策略可以为输出电压需要减低至的数值Ud,以使U1等于或近似等于Ud
方式3
可选地,该控制器确定第一调节策略包括:
该控制器接收外部设备发送的控制信息,该外部设备是接受该输出电压的设备,该控制信息用于确定该第一调节策略;
该控制器根据该控制信息,确定该第一调节策略。
具体地说,如图1或图2所示,在本发明实施例中,如果在适配器中配置有信息传输回路,则控制器可以基于该电压检测回路,接收来自外部设备的控制信息,并基于该控制信息确定第一调节策略。
作为示例而非限定,该控制信息包括以下至少一种信息:外部设备所接收到的充电电流的电流值的指示信息、外部设备所接收到的直流电的电压值 的指示信息、外部设备期望的充电电流的电流值的指示信息、外部设备期望的充电电流的电压值的指示信息、外部设备的电池温度的指示信息、外部设备的电池电量的指示信息等。
应理解,以上列举的控制信息所包括的信息仅为示例性说明,本发明并未特别限定,其他能够用于确定控制策略的参数的指示信息均落入本发明的保护范围内,并且,基于上述控制信息确定调节策略的方法可以与现有技术相似,这里,为了避免赘述,省略其详细说明。
方式4
可选地,控制器可以基于用户设备或协议规定等方式确定安全电压范围。
从而,控制器可以根据该安全电压范围确定第一调节策略,以使该第一调节策略满足:基于该第一调节策略调节后的输出电压处于上述安全电压范围内。
例如,如果在适配器中还配置有输出电压检测回路,则控制器还可以通过该输出电压检测回路监测适配器(或者说,功率转换器)的在下一调节周期之前(即,第一时段之前)的输出电压(即,第一输出电压)。控制器可以根据所监测到的第一输出电压与该安全电压范围的偏差,确定该第一调节策略,例如,如果第一输出电压大于上述安全电压范围的最大值,则控制器可以确定第一调节策略为降低输出电压。
方式5
可选地,控制器可以基于用户设备或协议规定等方式确定安全电流范围。
从而,控制器可以根据该安全电流范围确定第一调节策略,以使该第一调节策略满足:基于该第一调节策略调节后的输出电流处于上述安全电流范围内。
例如,如果在适配器中还配置有输出电流检测回路,则控制器还可以通过该输出电流检测回路监测适配器(或者说,功率转换器)的在下一调节周期之前(即,第一时段之前)的输出电流(即,第一输出电流)。控制器可以根据所监测到的第一输出电流与该安全电流范围的偏差,确定该第一调节策略,例如,如果第一输出电流大于上述安全电流范围的最大值,则控制器可以确定第一调节策略为降低输出电压。
应理解,以上列举的控制器确定第一调节策略的方式仅为示例性说明,本发明并未限定于此,其他能够用于确定输出电压的调节策略的方案均落入本发明的保护范围内。
并且,上述确定第一调节策略的方式可以单独使用也可以结合使用,本发明并未特别限定。
在S330,控制器可以根据在S320确定的第一调节策略,查询在S310获取的第一映射关系信息,以确定与该第一调节策略相对应的占空比(以下,为了便于理解和区分,记做:第一占空比)。
并且,控制器可以生成占空比为该第一占空比的PWM信号(以下,为了便于理解,记做:第一PWM信号)。
由此,该第一PWM信号(具体地说,是第一占空比)能够指示如上所述确定的第一调节策略。
在S340,控制器可以发送该第一PWM信号。
可选地,该控制器发送该PWM信号,包括:
该控制器通过一个引脚,发送该PWM信号。
具体地说,由于该PWM信号为脉冲信号,因此,仅需要一个引脚便能够传输。
在本发明实施例中,例如,在适配器具有图1所示结构的情况下,该控制器可以将第一PWM信号发送至滤波器(即,情况A),或者,在适配器具有图2所示结构的情况下,该控制器可以将第一PWM信号发送至功率转换器(即,情况B)。下面,分别对上述两种情况下功率转换器调节输出电压的过程进行详细说明。
情况A
可选地,该控制器发送该PWM信号,包括:
该控制器向滤波器发送该PWM信号,以便于该滤波器基于该PWM信号和第二映射关系信息,生成需要发送至功率转换器的电压反馈信号,其中,该第二映射关系信息用于指示该至少两种占空比与至少两个反馈电压值之间的一一对应关系,该电压反馈信号所承载的反馈电压值为该第二映射关系信息指示的与该PWM信号的占空比相对应的反馈电压值。
具体地说,在本发明实施例中,滤波器可以获取用于指示多个反馈电压值与多个占空比的一一对应关系的信息(即,第二映射关系信息)。
并且,作为示例而非限定,在本发明实施例中,该第二映射关系信息可以有用户输入至滤波器;或者,该第二映射关系信息可以由制造商在适配器或者控制器出厂时预设在滤波器器内;或者,该第二映射关系信息可以由控制器下发至滤波器。
需要说明的是,同一占空比所对应的调节策略和反馈电压值具有对应关系,具体地说,设占空比A所对应的调节策略为调节策略A,设占空比A所对应的反馈电压值为反馈电压值A,则功率转换器基于该反馈电压值A调节后的输出电压与调节策略A指示的调节后的输出电压相同或近似相同。
例如,如果调节策略A指示按照规定的步长提高输出电压,则功率转换器在接收到该反馈电压值A后,调节后输出电压的方式为按照规定的步长提高输出电压。
图4是占空比与反馈电压值的对应关系的一例的示意图。如图4所示,在本发明实施例中,该第二映射关系可以为,占空比越大反馈电压值越大。
应理解,以上列举的占空比与反馈电压值的对应关系仅为示例性说明,本发明并未限定于此。
从而,当滤波器接收到第一PWM信号后,可以根据第一PWM信号的占空比(即,第一占空比),查询该第二映射关系信息,从而确定与该第一占空比相对应的反馈电压值(记做:第一反馈电压值)。
并且,滤波器可以生成与该第一反馈电压值相对应的电压反馈信号(记做:第一电压反馈信号)。
其后,滤波器可以将该第一电压反馈信号发送至功率转换器。
该功率转换器在接收到该第一电压反馈信号后,可以识别该第一电压反馈信号所对应的反馈电压值(即,第一反馈电压值),进而可以根据该第一反馈电压值调节输出电压。
情况B
可选地,该控制器发送该PWM信号,包括:
该控制器向该功率转换器发送该PWM信号,以便于该功率转换器基于该PWM信号和该第一映射关系信息,确定该第一调节策略,并基于该第一调节策略调节输出电压。
具体地说,在本发明实施例中,功率转换器可以获取用于指示多个调节策略与多个占空比的一一对应关系的信息(即,第一映射关系信息)。
并且,作为示例而非限定,在本发明实施例中,该第一映射关系信息可以有用户输入至功率转换器;或者,该第一映射关系信息可以由制造商在适配器或者控制器出厂时预设在功率转换器内;或者,该第一映射关系信息可以由控制器下发至功率转换器。
例如,当功率转换器接收到第一PWM信号后,可以根据第一PWM信号的占空比(即,第一占空比),查询该第一映射关系信息,从而确定与该第一占空比相对应的调节策略(记做:第一调节策略)。进而可以根据该第一调节策略调节输出电压。
再例如,在本发明实施例中,功率转换器可以获取用于指示多个反馈电压值与多个占空比的一一对应关系的信息(即,第二映射关系信息)。并且,作为示例而非限定,在本发明实施例中,该第二映射关系信息可以有用户输入至功率转换器;或者,该第二映射关系信息可以由制造商在适配器或者控制器出厂时预设在功率转换器内;或者,该第二映射关系信息可以由控制器下发至功率转换器。需要说明的是,同一占空比所对应的调节策略和反馈电压值具有对应关系,具体地说,设占空比A所对应的调节策略为调节策略A,设占空比A所对应的反馈电压值为反馈电压值A,则功率转换器基于该反馈电压值A调节后的输出电压与调节策略A指示的调节后的输出电压相同或近似相同。例如,如果调节策略A指示按照规定的步长提高输出电压,则功率转换器在接收到该反馈电压值A后,调节后输出电压的方式为按照规定的步长提高输出电压。从而,当功率转换器接收到第一PWM信号后,可以根据第一PWM信号的占空比(即,第一占空比),查询该第二映射关系信息,从而确定与该第一占空比相对应的反馈电压值(记做:第一反馈电压值)。进而可以根据该第一反馈电压值调节输出电压。
根据本发明实施例的用于控制输出电压的方法,使控制器生成占空比与第一调节策略相对应的PWM信号,并通过该PWM信号控制功率转换器调节输出电压,由于PWM信号能够通过一个引脚进行传输,因此,能够减少控制器的引脚资源开销,提高控制器的使用效率,并且,由于使用PWM信号的占空比确定第一调节策略,因此,仅需识别PWM信号的占空比便能够实现对功率转换器的输出电压的控制,从而无需使用现有技术中成本较高的数字电位器,能够降低成本。
图5示出了从控制器角度描述的用于控制输出电压的方法400的示意性 流程图,如图5所示,该方法400包括:
S410,滤波器获取第二映射关系信息,该第二映射关系信息用于指示该至少两种占空比与至少两个反馈电压值之间的一一对应关系;
S420,该滤波器接收控制器发送的脉冲宽度调制PWM信号,该PWM信号是控制器根据第一调节策略和第一映射关系信息确定的,该第一映射关系信息用于指示包括该第一调节策略在内的至少两种调节策略与至少两种占空比之间的一一对应关系,其中,每个调节策略包括功率转换器的输出电压的调节方向的指示信息,该PWM信号的占空比为该第一映射关系信息指示的与该第一调节策略相对应的占空比;
S430,该滤波器根据该PWM信号和第二映射关系信息,生成电压反馈信号,该电压反馈信号所对应的反馈电压值为该第二映射关系信息指示的与该PWM信号的占空比相对应的反馈电压值;
S440,该滤波器向该功率转换器发送该电压反馈信号,以便于该功率转换器根据该电压反馈信号,调节输出电压。
可选地,该滤波器接收控制器发送的PWM信号,包括:
该滤波器通过一个引脚,接收该控制器发送的PWM信号。
该方法400中滤波器的结构与上述图1中描述的滤波器130的结构相似,该方法400中滤波器的处理过程与上述方法300中描述的滤波器的处理过程相似,这里,为了避免赘述,省略其详细说明。
根据本发明实施例的用于控制输出电压的方法,使控制器生成占空比与第一调节策略相对应的PWM信号,并通过该PWM信号控制功率转换器调节输出电压,由于PWM信号能够通过一个引脚进行传输,因此,能够减少控制器的引脚资源开销,提高控制器的使用效率,并且,由于使用PWM信号的占空比确定第一调节策略,因此,仅需识别PWM信号的占空比便能够实现对功率转换器的输出电压的控制,从而无需使用现有技术中成本较高的数字电位器,能够降低成本。
图6示出了从功率适配器角度描述的用于控制输出电压的方法500的示意性流程图,如图6所示,该方法500包括:
S510,功率转换器获取第一映射关系信息,该第一映射关系信息用于指示至少两种调节策略与至少两种占空比之间的一一对应关系,其中,每个调节策略包括输出电压的调节方向的指示信息;
S520,该功率转换器接收控制器发送的脉冲宽度调制PWM信号,该PWM信号是控制器根据第一调节策略和该第一映射关系信息确定的,该PWM信号的占空比为该第一映射关系信息指示的与该第一调节策略相对应的占空比;
S530,该功率转换器根据该PWM信号和该第一映射关系,确定该第一调节策略;
S540,该功率转换器根据该第一调节策略,调节输出电压。
可选地,该功率转换器接收控制器发送的PWM信号,包括:
该功率转换器通过一个引脚,接收该控制器发送的PWM信号。
可选地,每个调节策略包括输出电压的调节大小的指示信息。
该方法500中功率转换器的结构与上述图2中描述的功率转换器210的结构相似,该方法500中滤波器的处理过程与上述方法300中描述的功率转换器的处理过程(例如,情况B中描述的处理过程)相似,这里,为了避免赘述,省略其详细说明。
根据本发明实施例的用于控制输出电压的方法,使控制器生成占空比与第一调节策略相对应的PWM信号,并通过该PWM信号控制功率转换器调节输出电压,由于PWM信号能够通过一个引脚进行传输,因此,能够减少控制器的引脚资源开销,提高控制器的使用效率,并且,由于使用PWM信号的占空比确定第一调节策略,因此,仅需识别PWM信号的占空比便能够实现对功率转换器的输出电压的控制,从而无需使用现有技术中成本较高的数字电位器,能够降低成本。
以上,结合图1至图6详细说明了根据本发明实施例的用于控制输出电压的方法,下面,结合图7至图9详细说明根据本发明实施例的用于控制输出电压的装置。
图7是根据本发明一实施例的用于控制输出电压的装置600的示意性结构图。如图7所示,该装置600包括:
获取单元610,用于获取第一映射关系信息,该第一映射关系信息用于指示至少两种调节策略与至少两种占空比之间的一一对应关系,其中,每个调节策略包括功率转换器的输出电压的调节方向的指示信息;
确定单元620,用于确定第一调节策略;
生成单元630,用于根据第一调节策略和该第一映射关系信息,生成脉 冲宽度调制PWM信号,其中,该PWM信号的占空比为该第一映射关系信息指示的与该第一调节策略相对应的占空比;
收发单元640,用于发送该PWM信号,以使该功率转换器对输出电压的调节与该第一调节策略相对应。
可选地,该收发单元640用于通过一个引脚,发送该PWM信号。
可选地,该收发单元640用于向滤波器发送该PWM信号,以便于该滤波器基于该PWM信号和第二映射关系信息,生成需要发送至功率转换器的电压反馈信号,其中,该第二映射关系信息用于指示该至少两种占空比与至少两个反馈电压值之间的一一对应关系,该电压反馈信号所对应的反馈电压值为该第二映射关系信息指示的与该PWM信号的占空比相对应的反馈电压值。
可选地,该收发单元640用于向该功率转换器发送该PWM信号,以便于该功率转换器基于该PWM信号和该第一映射关系信息,确定该第一调节策略,并基于该第一调节策略调节输出电压。
可选地,每个调节策略还包括该功率转换器的输出电压的调节大小的指示信息。
可选地,该收发单元640用于接收外部设备发送的控制信息,该外部设备是接受该输出电压的设备,该控制信息用于确定该第一调节策略;
该确定单元620用于根据该控制信息,确定该第一调节策略。
可选地,该确定单元620用于确定目标输出电压;
该确定单元620用于确定第一输出电压,该第一输出电压是该功率转换器在第一时段之前的输出电压;
该确定单元620用于根据该第一输出电压与预设的目标输出电压之间的差异,确定该第一调节策略,其中,该第一调节策略用于调节该功率转换器在该第一时段的输出电压,以使该功率转换器在该第一时段的输出电压接近该目标输出电压。
在本发明实施例中,该用于控制输出电压的装置600可以嵌入或本身即为适配器,该装置600可对应于本发明实施例的中的控制器,并且,该装置600中的各单元即模块和上述其他操作和/或功能分别为了实现图3中的方法300的相应流程,为了简洁,在此不再赘述。
根据本发明实施例的用于控制输出电压的装置,使控制器生成占空比与 第一调节策略相对应的PWM信号,并通过该PWM信号控制功率转换器调节输出电压,由于PWM信号能够通过一个引脚进行传输,因此,能够减少控制器的引脚资源开销,提高控制器的使用效率,并且,由于使用PWM信号的占空比确定第一调节策略,因此,仅需识别PWM信号的占空比便能够实现对功率转换器的输出电压的控制,从而无需使用现有技术中成本较高的数字电位器,能够降低成本。
图8是根据本发明另一实施例的用于控制输出电压的装置700的示意性结构图。如图8所示,该装置700包括:
获取单元710,用于获取第二映射关系信息,该第二映射关系信息用于指示该至少两种占空比与至少两个反馈电压值之间的一一对应关系;
收发单元720,用于接收控制器发送的脉冲宽度调制PWM信号,该PWM信号是控制器根据第一调节策略和第一映射关系信息确定的,该第一映射关系信息用于指示包括该第一调节策略在内的至少两种调节策略与至少两种占空比之间的一一对应关系,其中,每个调节策略包括功率转换器的输出电压的调节方向的指示信息,该PWM信号的占空比为该第一映射关系信息指示的与该第一调节策略相对应的占空比;
生成单元730,用于根据该PWM信号和第二映射关系信息,生成电压反馈信号,该电压反馈信号所对应的反馈电压值为该第二映射关系信息指示的与该PWM信号的占空比相对应的反馈电压值;
该收发单元720用于向该功率转换器发送该电压反馈信号,以便于该功率转换器根据该电压反馈信号,调节输出电压。
可选地,该收发单元720用于通过一个引脚,接收该控制器发送的PWM信号。
在本发明实施例中,该用于控制输出电压的装置700可以嵌入或本身即为适配器,该装置700可对应于本发明实施例的中的滤波器,并且,该装置700中的各单元即模块和上述其他操作和/或功能分别为了实现图5中的方法400的相应流程,为了简洁,在此不再赘述。
根据本发明实施例的用于控制输出电压的装置,使控制器生成占空比与第一调节策略相对应的PWM信号,并通过该PWM信号控制功率转换器调节输出电压,由于PWM信号能够通过一个引脚进行传输,因此,能够减少控制器的引脚资源开销,提高控制器的使用效率,并且,由于使用PWM信 号的占空比确定第一调节策略,因此,仅需识别PWM信号的占空比便能够实现对功率转换器的输出电压的控制,从而无需使用现有技术中成本较高的数字电位器,能够降低成本。
图9是根据本发明再一实施例的用于控制输出电压的装置800的示意性结构图。如图9所示,该装置800包括:
获取单元810,用于获取第一映射关系信息,该第一映射关系信息用于指示至少两种调节策略与至少两种占空比之间的一一对应关系,其中,每个调节策略包括输出电压的调节方向的指示信息;
收发单元820,用于接收控制器发送的脉冲宽度调制PWM信号,该PWM信号是控制器根据第一调节策略和该第一映射关系信息确定的,该PWM信号的占空比为该第一映射关系信息指示的与该第一调节策略相对应的占空比;
确定单元830,用于根据该PWM信号和该第一映射关系,确定该第一调节策略;
处理单元840,用于根据该第一调节策略,调节输出电压。
可选地,该收发单元820用于通过一个引脚,接收该控制器发送的PWM信号。
可选地,每个调节策略包括输出电压的调节大小的指示信息。
在本发明实施例中,该用于控制输出电压的装置800可以嵌入或本身即为适配器,该装置800可对应于本发明实施例的中的功率转换器,并且,该装置800中的各单元即模块和上述其他操作和/或功能分别为了实现图6中的方法500的相应流程,为了简洁,在此不再赘述。
根据本发明实施例的用于控制输出电压的装置,使控制器生成占空比与第一调节策略相对应的PWM信号,并通过该PWM信号控制功率转换器调节输出电压,由于PWM信号能够通过一个引脚进行传输,因此,能够减少控制器的引脚资源开销,提高控制器的使用效率,并且,由于使用PWM信号的占空比确定第一调节策略,因此,仅需识别PWM信号的占空比便能够实现对功率转换器的输出电压的控制,从而无需使用现有技术中成本较高的数字电位器,能够降低成本。
图10是根据本发明一实施例的用于控制输出电压的设备900的示意性框图,如图10所示,该设备900包括:处理器910和收发器920,处理器 910和收发器920相连,可选地,该设备900还包括存储器930,存储器930与处理器910相连,进一步可选地,该设备900包括总线系统940。其中,处理器910、存储器930和收发器920可以通过总线系统940相连,该存储器930可以用于存储指令,该处理器910用于执行该存储器930存储的指令,以控制收发器920发送信息或信号,
该处理器910用于获取第一映射关系信息,该第一映射关系信息用于指示至少两种调节策略与至少两种占空比之间的一一对应关系,其中,每个调节策略包括功率转换器的输出电压的调节方向的指示信息;
该处理器910用于确定第一调节策略;
该处理器910用于根据第一调节策略和该第一映射关系信息,生成脉冲宽度调制PWM信号,其中,该PWM信号的占空比为该第一映射关系信息指示的与该第一调节策略相对应的占空比;
该处理器910用于控制该收发器920发送该PWM信号,以使该功率转换器对输出电压的调节与该第一调节策略相对应。
可选地,该处理器910用于控制该收发器920通过一个引脚,发送该PWM信号。
可选地,该处理器910用于控制该收发器920向滤波器发送该PWM信号,以便于该滤波器基于该PWM信号和第二映射关系信息,生成需要发送至功率转换器的电压反馈信号,其中,该第二映射关系信息用于指示该至少两种占空比与至少两个反馈电压值之间的一一对应关系,该电压反馈信号所对应的反馈电压值为该第二映射关系信息指示的与该PWM信号的占空比相对应的反馈电压值。
可选地,该处理器910用于控制该收发器920向该功率转换器发送该PWM信号,以便于该功率转换器基于该PWM信号和该第一映射关系信息,确定该第一调节策略,并基于该第一调节策略调节输出电压。
可选地,每个调节策略还包括该功率转换器的输出电压的调节大小的指示信息。
可选地,该处理器910用于控制该收发器920接收外部设备发送的控制信息,该外部设备是接受该输出电压的设备,该控制信息用于确定该第一调节策略;
该处理器910用于根据该控制信息,确定该第一调节策略。
可选地,该处理器910用于确定目标输出电压;
该处理器910用于确定第一输出电压,该第一输出电压是该功率转换器在第一时段之前的输出电压;
该处理器910用于根据该第一输出电压与预设的目标输出电压之间的差异,确定该第一调节策略,其中,该第一调节策略用于调节该功率转换器在该第一时段的输出电压,以使该功率转换器在该第一时段的输出电压接近该目标输出电压。
在本发明实施例中,该用于控制输出电压的设备900可以嵌入或本身即为适配器,该设备900可对应于本发明实施例的中的控制器,并且,该设备900中的各单元即模块和上述其他操作和/或功能分别为了实现图3中的方法300的相应流程,为了简洁,在此不再赘述。
根据本发明实施例的用于控制输出电压的设备,使控制器生成占空比与第一调节策略相对应的PWM信号,并通过该PWM信号控制功率转换器调节输出电压,由于PWM信号能够通过一个引脚进行传输,因此,能够减少控制器的引脚资源开销,提高控制器的使用效率,并且,由于使用PWM信号的占空比确定第一调节策略,因此,仅需识别PWM信号的占空比便能够实现对功率转换器的输出电压的控制,从而无需使用现有技术中成本较高的数字电位器,能够降低成本。
图11是根据本发明另一实施例的用于控制输出电压的设备1000的示意性框图,如图11所示,该设备1000包括:处理器1010和收发器1020,处理器1010和收发器1020相连,可选地,该设备1000还包括存储器1030,存储器1030与处理器1010相连,进一步可选地,该设备1000包括总线系统1040。其中,处理器1010、存储器1030和收发器1020可以通过总线系统1040相连,该存储器1030可以用于存储指令,该处理器1010用于执行该存储器1030存储的指令,以控制收发器1020发送信息或信号,
该处理器1010用于获取第二映射关系信息,该第二映射关系信息用于指示该至少两种占空比与至少两个反馈电压值之间的一一对应关系;
该处理器1010用于控制收发器1020接收控制器发送的脉冲宽度调制PWM信号,该PWM信号是控制器根据第一调节策略和第一映射关系信息确定的,该第一映射关系信息用于指示包括该第一调节策略在内的至少两种调节策略与至少两种占空比之间的一一对应关系,其中,每个调节策略包括 功率转换器的输出电压的调节方向的指示信息,该PWM信号的占空比为该第一映射关系信息指示的与该第一调节策略相对应的占空比;
该处理器1010用于根据该PWM信号和第二映射关系信息,生成电压反馈信号,该电压反馈信号所对应的反馈电压值为该第二映射关系信息指示的与该PWM信号的占空比相对应的反馈电压值;
该处理器1010用于控制收发器1020向该功率转换器发送该电压反馈信号,以便于该功率转换器根据该电压反馈信号,调节输出电压。
可选地,该处理器1010用于控制收发器1020通过一个引脚,接收该控制器发送的PWM信号。
在本发明实施例中,该用于控制输出电压的设备1000可以嵌入或本身即为适配器,该设备1000可对应于本发明实施例的中的滤波器,并且,该设备1000中的各单元即模块和上述其他操作和/或功能分别为了实现图5中的方法400的相应流程,为了简洁,在此不再赘述。
根据本发明实施例的用于控制输出电压的设备,使控制器生成占空比与第一调节策略相对应的PWM信号,并通过该PWM信号控制功率转换器调节输出电压,由于PWM信号能够通过一个引脚进行传输,因此,能够减少控制器的引脚资源开销,提高控制器的使用效率,并且,由于使用PWM信号的占空比确定第一调节策略,因此,仅需识别PWM信号的占空比便能够实现对功率转换器的输出电压的控制,从而无需使用现有技术中成本较高的数字电位器,能够降低成本。
图12是根据本发明再一实施例的用于控制输出电压的设备1100的示意性框图,如图12所示,该设备1100包括:处理器1110和收发器1120,处理器1110和收发器1120相连,可选地,该设备1100还包括存储器1130,存储器1130与处理器1110相连,进一步可选地,该设备1100包括总线系统1140。其中,处理器1110、存储器1130和收发器1120可以通过总线系统1140相连,该存储器1130可以用于存储指令,该处理器1110用于执行该存储器1130存储的指令,以控制收发器1120发送信息或信号,
该处理器1110用于获取第一映射关系信息,该第一映射关系信息用于指示至少两种调节策略与至少两种占空比之间的一一对应关系,其中,每个调节策略包括输出电压的调节方向的指示信息;
该处理器1110用于控制该收发器1120接收控制器发送的脉冲宽度调制 PWM信号,该PWM信号是控制器根据第一调节策略和该第一映射关系信息确定的,该PWM信号的占空比为该第一映射关系信息指示的与该第一调节策略相对应的占空比;
该处理器1110用于根据该PWM信号和该第一映射关系,确定该第一调节策略;
该处理器1110用于根据该第一调节策略,调节输出电压。
可选地,该处理器1110用于控制该收发器1120通过一个引脚,接收该控制器发送的PWM信号。
可选地,每个调节策略包括输出电压的调节大小的指示信息。
在本发明实施例中,该用于控制输出电压的设备1100可以嵌入或本身即为适配器,该设备1100可对应于本发明实施例的中的功率控制器,并且,该设备1100中的各单元即模块和上述其他操作和/或功能分别为了实现图6中的方法500的相应流程,为了简洁,在此不再赘述。
根据本发明实施例的用于控制输出电压的设备,使控制器生成占空比与第一调节策略相对应的PWM信号,并通过该PWM信号控制功率转换器调节输出电压,由于PWM信号能够通过一个引脚进行传输,因此,能够减少控制器的引脚资源开销,提高控制器的使用效率,并且,由于使用PWM信号的占空比确定第一调节策略,因此,仅需识别PWM信号的占空比便能够实现对功率转换器的输出电压的控制,从而无需使用现有技术中成本较高的数字电位器,能够降低成本。
应注意,本发明上述方法实施例可以应用于处理器,或者由处理器实现。处理器可能是一种集成电路芯片,具有信号的处理能力。在实现过程中,上述方法实施例的各步骤可以通过处理器中的硬件的集成逻辑电路或者软件形式的指令完成。上述的处理器可以是通用处理器、数字信号处理器(Digital Signal Processor,DSP)、专用集成电路(Application Specific Integrated Circuit,ASIC)、现成可编程门阵列(Field Programmable Gate Array,FPGA)或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件。可以实现或者执行本发明实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者该处理器也可以是任何常规的处理器等。结合本发明实施例所公开的方法的步骤可以直接体现为硬件译码处理器执行完成,或者用译码处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储 器,闪存、只读存储器,可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器,处理器读取存储器中的信息,结合其硬件完成上述方法的步骤。
可以理解,本发明实施例中的存储器可以是易失性存储器或非易失性存储器,或可包括易失性和非易失性存储器两者。其中,非易失性存储器可以是只读存储器(Read-Only Memory,ROM)、可编程只读存储器(Programmable ROM,PROM)、可擦除可编程只读存储器(Erasable PROM,EPROM)、电可擦除可编程只读存储器(Electrically EPROM,EEPROM)或闪存。易失性存储器可以是随机存取存储器(Random Access Memory,RAM),其用作外部高速缓存。通过示例性但不是限制性说明,许多形式的RAM可用,例如静态随机存取存储器(Static RAM,SRAM)、动态随机存取存储器(Dynamic RAM,DRAM)、同步动态随机存取存储器(Synchronous DRAM,SDRAM)、双倍数据速率同步动态随机存取存储器(Double Data Rate SDRAM,DDR SDRAM)、增强型同步动态随机存取存储器(Enhanced SDRAM,ESDRAM)、同步连接动态随机存取存储器(Synchlink DRAM,SLDRAM)和直接内存总线随机存取存储器(Direct Rambus RAM,DR RAM)。应注意,本文描述的系统和方法的存储器旨在包括但不限于这些和任意其它适合类型的存储器。
应理解,在本发明的各种实施例中,上述各过程的序号的大小并不意味着执行顺序的先后,各过程的执行顺序应以其功能和内在逻辑确定,而不应对本发明实施例的实施过程构成任何限定。
本领普通技术人员可以意识到,结合本文中所公开的实施例描述的各示例的单元及算法步骤,能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行,取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能,但是这种实现不应认为超出本发明的范围。
所属领的技术人员可以清楚地了解到,为描述的方便和简洁,上述描述的系统、装置和单元的具体工作过程,可以参考前述方法实施例中的对应过程,在此不再赘述。
在本申请所提供的几个实施例中,应该理解到,所揭露的系统、装置和方法,可以通过其它的方式实现。例如,以上所描述的装置实施例仅仅是示 意性的,例如,所述单元的划分,仅仅为一种逻辑功能划分,实际实现时可以有另外的划分方式,例如多个单元或组件可以结合或者可以集成到另一个系统,或一些特征可以忽略,或不执行。另一点,所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口,装置或单元的间接耦合或通信连接,可以是电性,机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的,作为单元显示的部件可以是或者也可以不是物理单元,即可以位于一个地方,或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例方案的目的。
另外,在本发明各个实施例中的各功能单元可以集成在一个处理单元中,也可以是各个单元单独物理存在,也可以两个或两个以上单元集成在一个单元中。
所述功能如果以软件功能单元的形式实现并作为独立的产品销售或使用时,可以存储在一个计算机可读取存储介质中。基于这样的理解,本发明的技术方案本质上或者说对现有技术做出贡献的部分或者该技术方案的部分可以以软件产品的形式体现出来,该计算机软件产品存储在一个存储介质中,包括若干指令用以使得一台计算机设备(可以是个人计算机,服务器,或者网络设备等)执行本发明各个实施例所述方法的全部或部分步骤。而前述的存储介质包括:U盘、移动硬盘、只读存储器(ROM,Read-Only Memory)、随机存取存储器(RAM,Random Access Memory)、磁碟或者光盘等各种可以存储程序代码的介质。
以上所述,仅为本发明的具体实施方式,但本发明的保护范围并不局限于此,任何熟悉本技术领的技术人员在本发明揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本发明的保护范围之内。因此,本发明的保护范围应以所述权利要求的保护范围为准。

Claims (26)

  1. 一种用于控制输出电压的方法,其特征在于,所述方法包括:
    控制器获取第一映射关系信息,所述第一映射关系信息用于指示至少两种调节策略与至少两种占空比之间的一一对应关系,其中,每个调节策略包括功率转换器的输出电压的调节方向的指示信息;
    所述控制器确定第一调节策略;
    所述控制器根据第一调节策略和所述第一映射关系信息,生成脉冲宽度调制PWM信号,其中,所述PWM信号的占空比为所述第一映射关系信息指示的与所述第一调节策略相对应的占空比;
    所述控制器发送所述PWM信号,以使所述功率转换器对输出电压的调节与所述第一调节策略相对应。
  2. 根据权利要求1所述的方法,其特征在于,所述控制器发送所述PWM信号,包括:
    所述控制器通过一个引脚,发送所述PWM信号。
  3. 根据权利要求1或2所述的方法,其特征在于,所述控制器发送所述PWM信号,包括:
    所述控制器向滤波器发送所述PWM信号,以便于所述滤波器基于所述PWM信号和第二映射关系信息,生成需要发送至功率转换器的电压反馈信号,其中,所述第二映射关系信息用于指示所述至少两种占空比与至少两个反馈电压值之间的一一对应关系,所述电压反馈信号所对应的反馈电压值为所述第二映射关系信息指示的与所述PWM信号的占空比相对应的反馈电压值。
  4. 根据权利要求1或2所述的方法,其特征在于,所述控制器发送所述PWM信号,包括:
    所述控制器向所述功率转换器发送所述PWM信号,以便于所述功率转换器基于所述PWM信号和所述第一映射关系信息,确定所述第一调节策略,并基于所述第一调节策略调节输出电压。
  5. 根据权利要求1至4中任一项所述的方法,其特征在于,每个调节策略还包括所述功率转换器的输出电压的调节大小的指示信息。
  6. 根据权利要求1至5中任一项所述的方法,其特征在于,所述控制器确定第一调节策略包括:
    所述控制器接收外部设备发送的控制信息,所述外部设备是接受所述输出电压的设备,所述控制信息用于确定所述第一调节策略;
    所述控制器根据所述控制信息,确定所述第一调节策略。
  7. 根据权利要求1至6中任一项所述的方法,其特征在于,所述控制器确定第一调节策略包括:
    所述控制器确定目标输出电压;
    所述控制器确定第一输出电压,所述第一输出电压是所述功率转换器在第一时段之前的输出电压;
    所述控制器根据所述第一输出电压与预设的目标输出电压之间的差异,确定所述第一调节策略,其中,所述第一调节策略用于调节所述功率转换器在所述第一时段的输出电压,以使所述功率转换器在所述第一时段的输出电压接近所述目标输出电压。
  8. 一种用于控制输出电压的方法,其特征在于,所述方法包括:
    滤波器获取第二映射关系信息,所述第二映射关系信息用于指示所述至少两种占空比与至少两个反馈电压值之间的一一对应关系;
    所述滤波器接收控制器发送的脉冲宽度调制PWM信号,所述PWM信号是控制器根据第一调节策略和第一映射关系信息确定的,所述第一映射关系信息用于指示包括所述第一调节策略在内的至少两种调节策略与至少两种占空比之间的一一对应关系,其中,每个调节策略包括功率转换器的输出电压的调节方向的指示信息,所述PWM信号的占空比为所述第一映射关系信息指示的与所述第一调节策略相对应的占空比;
    所述滤波器根据所述PWM信号和第二映射关系信息,生成电压反馈信号,所述电压反馈信号所对应的反馈电压值为所述第二映射关系信息指示的与所述PWM信号的占空比相对应的反馈电压值;
    所述滤波器向所述功率转换器发送所述电压反馈信号,以便于所述功率转换器根据所述电压反馈信号,调节输出电压。
  9. 根据权利要求8所述的方法,其特征在于,所述滤波器接收控制器发送的PWM信号,包括:
    所述滤波器通过一个引脚,接收所述控制器发送的PWM信号。
  10. 一种用于控制输出电压的方法,其特征在于,所述方法包括:
    功率转换器获取第一映射关系信息,所述第一映射关系信息用于指示至 少两种调节策略与至少两种占空比之间的一一对应关系,其中,每个调节策略包括输出电压的调节方向的指示信息;
    所述功率转换器接收控制器发送的脉冲宽度调制PWM信号,所述PWM信号是控制器根据第一调节策略和所述第一映射关系信息确定的,所述PWM信号的占空比为所述第一映射关系信息指示的与所述第一调节策略相对应的占空比;
    所述功率转换器根据所述PWM信号和所述第一映射关系,确定所述第一调节策略;
    所述功率转换器根据所述第一调节策略,调节输出电压。
  11. 根据权利要求10所述的方法,其特征在于,所述功率转换器接收控制器发送的PWM信号,包括:
    所述功率转换器通过一个引脚,接收所述控制器发送的PWM信号。
  12. 根据权利要求10或12所述的方法,其特征在于,每个调节策略包括输出电压的调节大小的指示信息。
  13. 一种用于控制输出电压的装置,其特征在于,所述装置包括:
    获取单元,用于获取第一映射关系信息,所述第一映射关系信息用于指示至少两种调节策略与至少两种占空比之间的一一对应关系,其中,每个调节策略包括功率转换器的输出电压的调节方向的指示信息;
    确定单元,用于确定第一调节策略;
    生成单元,用于根据第一调节策略和所述第一映射关系信息,生成脉冲宽度调制PWM信号,其中,所述PWM信号的占空比为所述第一映射关系信息指示的与所述第一调节策略相对应的占空比;
    收发单元,用于发送所述PWM信号,以使所述功率转换器对输出电压的调节与所述第一调节策略相对应。
  14. 根据权利要求13所述的装置,其特征在于,所述收发单元用于通过一个引脚,发送所述PWM信号。
  15. 根据权利要求13或14所述的装置,其特征在于,所述收发单元用于向滤波器发送所述PWM信号,以便于所述滤波器基于所述PWM信号和第二映射关系信息,生成需要发送至功率转换器的电压反馈信号,其中,所述第二映射关系信息用于指示所述至少两种占空比与至少两个反馈电压值之间的一一对应关系,所述电压反馈信号所对应的反馈电压值为所述第二映 射关系信息指示的与所述PWM信号的占空比相对应的反馈电压值。
  16. 根据权利要求13或14所述的装置,其特征在于,所述收发单元用于向所述功率转换器发送所述PWM信号,以便于所述功率转换器基于所述PWM信号和所述第一映射关系信息,确定所述第一调节策略,并基于所述第一调节策略调节输出电压。
  17. 根据权利要求13至16中任一项所述的装置,其特征在于,每个调节策略还包括所述功率转换器的输出电压的调节大小的指示信息。
  18. 根据权利要求13至17中任一项所述的装置,其特征在于,所述收发单元用于接收外部设备发送的控制信息,所述外部设备是接受所述输出电压的设备,所述控制信息用于确定所述第一调节策略;
    所述确定单元用于根据所述控制信息,确定所述第一调节策略。
  19. 根据权利要求13至18中任一项所述的装置,其特征在于,所述确定单元用于确定目标输出电压;
    所述确定单元用于确定第一输出电压,所述第一输出电压是所述功率转换器在第一时段之前的输出电压;
    所述确定单元用于根据所述第一输出电压与预设的目标输出电压之间的差异,确定所述第一调节策略,其中,所述第一调节策略用于调节所述功率转换器在所述第一时段的输出电压,以使所述功率转换器在所述第一时段的输出电压接近所述目标输出电压。
  20. 一种用于控制输出电压的装置,其特征在于,所述装置包括:
    获取单元,用于获取第二映射关系信息,所述第二映射关系信息用于指示所述至少两种占空比与至少两个反馈电压值之间的一一对应关系;
    收发单元,用于接收控制器发送的脉冲宽度调制PWM信号,所述PWM信号是控制器根据第一调节策略和第一映射关系信息确定的,所述第一映射关系信息用于指示包括所述第一调节策略在内的至少两种调节策略与至少两种占空比之间的一一对应关系,其中,每个调节策略包括功率转换器的输出电压的调节方向的指示信息,所述PWM信号的占空比为所述第一映射关系信息指示的与所述第一调节策略相对应的占空比;
    生成单元,用于根据所述PWM信号和第二映射关系信息,生成电压反馈信号,所述电压反馈信号所对应的反馈电压值为所述第二映射关系信息指示的与所述PWM信号的占空比相对应的反馈电压值;
    所述收发单元用于向所述功率转换器发送所述电压反馈信号,以便于所述功率转换器根据所述电压反馈信号,调节输出电压。
  21. 根据权利要求20所述的装置,其特征在于,所述收发单元用于通过一个引脚,接收所述控制器发送的PWM信号。
  22. 一种用于控制输出电压的装置,其特征在于,所述装置包括:
    获取单元,用于获取第一映射关系信息,所述第一映射关系信息用于指示至少两种调节策略与至少两种占空比之间的一一对应关系,其中,每个调节策略包括输出电压的调节方向的指示信息;
    收发单元,用于接收控制器发送的脉冲宽度调制PWM信号,所述PWM信号是控制器根据第一调节策略和所述第一映射关系信息确定的,所述PWM信号的占空比为所述第一映射关系信息指示的与所述第一调节策略相对应的占空比;
    确定单元,用于根据所述PWM信号和所述第一映射关系,确定所述第一调节策略;
    处理单元,用于根据所述第一调节策略,调节输出电压。
  23. 根据权利要求22所述的装置,其特征在于,所述收发单元用于通过一个引脚,接收所述控制器发送的PWM信号。
  24. 根据权利要求21或22所述的装置,其特征在于,每个调节策略包括输出电压的调节大小的指示信息。
  25. 一种适配器,其特征在于,所述适配器包括:
    功率转换器,用于从电源获取交流电,并将所述交流电转换为直流电;
    控制器,用于根据第一调节策略和第一映射关系信息,生成并发送脉冲宽度调制PWM信号,以使所述功率转换器对所述直流电的输出电压的调节与所述第一调节策略相对应,其中,所述第一映射关系信息用于指示包括所述第一调节策略在内的至少两种调节策略与至少两种占空比之间的一一对应关系,每个调节策略包括输出电压的调节方向的指示信息,所述PWM信号的占空比为所述第一映射关系信息指示的与所述第一调节策略相对应的占空比。
  26. 根据权利要求25所述的方法,其特征在于,所述适配器还包括:
    滤波器,与所述功率转换器和控制器通信连接,用于接收所述PWM信号,根据所述PWM信号和第二映射关系信息,生成电压反馈信号,向所述 功率转换器发送所述电压反馈信号,其中,所述第二映射关系信息用于指示所述至少两种占空比与包括所述电压反馈信号所携带的反馈电压值在内的至少两个反馈电压值之间的一一对应关系,所述电压反馈信号所对应的反馈电压值为所述第二映射关系信息指示的与所述PWM信号的占空比相对应的反馈电压值;
    所述功率转换器还用于根据所述电压反馈信号,调节输出电压。
PCT/CN2016/081414 2016-05-09 2016-05-09 用于控制输出电压的方法和装置以及适配器 WO2017193259A1 (zh)

Priority Applications (5)

Application Number Priority Date Filing Date Title
PCT/CN2016/081414 WO2017193259A1 (zh) 2016-05-09 2016-05-09 用于控制输出电压的方法和装置以及适配器
US15/552,877 US10298046B2 (en) 2016-05-09 2016-05-09 Charging method of controlling output voltages, apparatus and adapter
CN201680000927.2A CN106537749B (zh) 2016-05-09 2016-05-09 用于控制输出电压的方法和装置以及适配器
EP16890122.1A EP3264566B1 (en) 2016-05-09 2016-05-09 Method for controlling output voltage and adaptor
TW106107410A TWI620395B (zh) 2016-05-09 2017-03-07 用於控制輸出電壓的方法和裝置以及適配器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2016/081414 WO2017193259A1 (zh) 2016-05-09 2016-05-09 用于控制输出电压的方法和装置以及适配器

Publications (1)

Publication Number Publication Date
WO2017193259A1 true WO2017193259A1 (zh) 2017-11-16

Family

ID=58335996

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/081414 WO2017193259A1 (zh) 2016-05-09 2016-05-09 用于控制输出电压的方法和装置以及适配器

Country Status (5)

Country Link
US (1) US10298046B2 (zh)
EP (1) EP3264566B1 (zh)
CN (1) CN106537749B (zh)
TW (1) TWI620395B (zh)
WO (1) WO2017193259A1 (zh)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI662772B (zh) * 2018-02-13 2019-06-11 台達電子工業股份有限公司 適配連接線、適配模組及其操作方法
US11025084B2 (en) 2018-10-23 2021-06-01 Google Llc Dynamic adjustment of charging voltage supplied from a first device to a second device
CN112669741B (zh) * 2019-10-16 2023-01-03 北京小米移动软件有限公司 发光控制方法及装置、电子设备
CN110928349A (zh) * 2019-11-12 2020-03-27 无锡天芯互联科技有限公司 一种电源调节装置
CN111030214B (zh) * 2019-12-02 2023-05-05 安克创新科技股份有限公司 充电装置及其充电电流控制方法
CN112947191B (zh) * 2021-02-08 2024-07-23 联想(北京)有限公司 一种信息处理方法、信息处理装置、电子设备和存储介质
CN113485501A (zh) * 2021-06-28 2021-10-08 宁畅信息产业(北京)有限公司 电压调节装置和电压调节方法
TWI792917B (zh) * 2022-02-11 2023-02-11 全漢企業股份有限公司 充電裝置及其安全功能控制電路與方法
CN116719376B (zh) * 2022-09-26 2024-04-19 荣耀终端有限公司 电压控制方法、装置、设备和存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070069707A1 (en) * 2005-09-28 2007-03-29 Hitoshi Miyashita Method and apparatus for switching regulator capable of quick feedback from load
CN201450454U (zh) * 2009-07-14 2010-05-05 黄挺 输出电压可调的电源适配器
CN104426394A (zh) * 2013-08-28 2015-03-18 鸿富锦精密工业(深圳)有限公司 电源适配器
CN104868573A (zh) * 2015-06-02 2015-08-26 集怡嘉数码科技(深圳)有限公司 一种电源适配器及快速充电切换方法

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5195045A (en) * 1991-02-27 1993-03-16 Astec America, Inc. Automatic impedance matching apparatus and method
US5703470A (en) * 1996-05-29 1997-12-30 Motorola, Inc. Battery charger with power dissipation control
US6246215B1 (en) 1999-03-08 2001-06-12 O2 Micro International Limited Buffer battery power supply system
US6741066B1 (en) * 2000-09-21 2004-05-25 O2Micro International Limited Power management for battery powered appliances
CN101340139B (zh) 2007-07-03 2012-07-04 鸿富锦精密工业(深圳)有限公司 多输出交流电源适配器
CN102195495B (zh) 2010-03-03 2013-12-04 比亚迪股份有限公司 一种开关电源控制电路及开关电源
US8390261B2 (en) * 2010-05-21 2013-03-05 Infineon Technologies Austria Ag Maximum power point tracker bypass
JP5304745B2 (ja) 2010-07-30 2013-10-02 ミツミ電機株式会社 絶縁型電源装置および照明装置
US8878495B2 (en) * 2011-08-31 2014-11-04 GM Global Technology Operations LLC Systems and methods for providing power to a load based upon a control strategy
TWI443930B (zh) 2011-09-23 2014-07-01 Askey Technology Jiangsu Ltd 充電電流控制方法及充電系統
KR101387717B1 (ko) * 2012-02-06 2014-04-24 엘지전자 주식회사 전기 자동차의 배터리 충전 장치 및 이를 포함한 전기 자동차
US8817493B2 (en) 2012-08-07 2014-08-26 Apple Inc. Controlling an adapter transformer voltage
CN102843051B (zh) 2012-08-24 2016-02-03 天津三星电子有限公司 电源适配器
US9541973B2 (en) 2012-10-11 2017-01-10 Monolithic Power Systems, Inc. Digitally calibrated voltage regulators for power management
CN203278656U (zh) * 2013-03-29 2013-11-06 杭州士兰微电子股份有限公司 开关电源及用于数字控制开关电源的光电耦合器隔离传输电路
US9312767B2 (en) 2013-12-06 2016-04-12 Infineon Technologies Austria Ag Reconfigurable multiphase power stage for switched mode chargers
CN203632334U (zh) * 2013-12-31 2014-06-04 杭州士兰微电子股份有限公司 多支路反馈充电器电路
CN203747485U (zh) 2014-01-28 2014-07-30 广东欧珀移动通信有限公司 电子设备充电装置及其电源适配器
CN103856055B (zh) 2014-02-28 2016-06-29 台达电子企业管理(上海)有限公司 Dc/dc转换器及其控制方法
US9748781B2 (en) * 2014-06-24 2017-08-29 Intersil Americas LLC Voltage converters and methods for use therewith
CN104467122B (zh) * 2014-12-31 2017-08-29 展讯通信(上海)有限公司 充电方法、装置、充电器、电子装置及设备
CN205123394U (zh) 2015-10-13 2016-03-30 安徽师范大学 一种输出电压可选的电源适配器
TWM520156U (zh) 2015-11-24 2016-04-11 群光電能科技股份有限公司 具省電模式之電源適配器
CN105631129B (zh) 2015-12-29 2018-09-04 山东海量信息技术研究院 一种基于OpenPOWER平台的电源电路设计方法
TWM532118U (zh) 2016-06-02 2016-11-11 群光電能科技股份有限公司 供電裝置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070069707A1 (en) * 2005-09-28 2007-03-29 Hitoshi Miyashita Method and apparatus for switching regulator capable of quick feedback from load
CN201450454U (zh) * 2009-07-14 2010-05-05 黄挺 输出电压可调的电源适配器
CN104426394A (zh) * 2013-08-28 2015-03-18 鸿富锦精密工业(深圳)有限公司 电源适配器
CN104868573A (zh) * 2015-06-02 2015-08-26 集怡嘉数码科技(深圳)有限公司 一种电源适配器及快速充电切换方法

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP3264566A4 *

Also Published As

Publication number Publication date
EP3264566A1 (en) 2018-01-03
US10298046B2 (en) 2019-05-21
EP3264566B1 (en) 2020-04-15
CN106537749A (zh) 2017-03-22
US20180175651A1 (en) 2018-06-21
EP3264566A4 (en) 2018-04-25
TW201740654A (zh) 2017-11-16
TWI620395B (zh) 2018-04-01
CN106537749B (zh) 2019-09-06

Similar Documents

Publication Publication Date Title
WO2017193259A1 (zh) 用于控制输出电压的方法和装置以及适配器
JP6929581B2 (ja) 電源アダプタ装置、制御方法および制御装置
EP3285363B1 (en) Adapter and charging control method
TWI657642B (zh) 用於終端的充電系統、充電方法以及電源適配器、充電裝置
CN105453372B (zh) 利用通用高功率输入源进行快速电池充电的方法及设备
US9818530B2 (en) Adaptive wireless power transfer system and method
TWI404294B (zh) Battery pack, charging system, notebook personal computer, external charger and charging method
EP3086433A1 (en) Charging method, alternating current adaptor, charging management device and terminal
CN103683388A (zh) 充电器、终端、过热保护系统和过热保护方法
WO2018068323A1 (zh) 充电器
CN104885328A (zh) 用于动态调整适配器的充电电流的方法、装置及适配器,以实现热保护和快速充电
WO2017000573A1 (zh) 一种适配器及其实现充电的方法
CN104467109A (zh) 用于为电子设备供电的方法和电子设备
TW201828565A (zh) 電子設備、供電電源及供電電源的控制方法
JP2011182538A (ja) 充電装置および充電システム
CN112930637A (zh) 一种无线充电方法、待充电设备、电源设备及存储介质
JP2017191606A (ja) アクセス装置
US10924016B2 (en) Method for converting electric energy between C-type USB devices and corresponding device
JP2021503266A (ja) 充電方法、端末及びコンピュータ記憶媒体
CN105811532A (zh) 一种充电方法、充电控制电路以及充电器
TW201933713A (zh) 自動偵測待機電流的節能裝置
WO2019100301A1 (zh) 充电装置
KR20210076709A (ko) 충전장치 및 그의 제어방법

Legal Events

Date Code Title Description
REEP Request for entry into the european phase

Ref document number: 2016890122

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 15552877

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE