WO2018157412A1 - Câble de charge à grande vitesse, système de charge à grande vitesse et procédé de charge à grande vitesse - Google Patents

Câble de charge à grande vitesse, système de charge à grande vitesse et procédé de charge à grande vitesse Download PDF

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Publication number
WO2018157412A1
WO2018157412A1 PCT/CN2017/075874 CN2017075874W WO2018157412A1 WO 2018157412 A1 WO2018157412 A1 WO 2018157412A1 CN 2017075874 W CN2017075874 W CN 2017075874W WO 2018157412 A1 WO2018157412 A1 WO 2018157412A1
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WO
WIPO (PCT)
Prior art keywords
charging
interface
fast charging
terminal device
power supply
Prior art date
Application number
PCT/CN2017/075874
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English (en)
Chinese (zh)
Inventor
雷灿伙
廖青松
Original Assignee
深圳罗马仕科技有限公司
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Publication of WO2018157412A1 publication Critical patent/WO2018157412A1/fr

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • H02J7/0036—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using connection detecting circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
    • H01M10/44—Methods for charging or discharging
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the invention relates to the technical field of charging, in particular to a fast charging line, a fast charging system and a fast charging method.
  • Fast charging technology refers to the adjustment of the input voltage and current value of the mobile phone through the chipset, thereby shortening the charging time. It is common to increase the charging speed of the mobile phone by increasing the voltage constant current, low voltage, high current, high voltage and high current.
  • a fast charging line comprising: a first interface for connecting a power supply; a second interface for connecting a terminal device; and a signal processing circuit connected to the first interface and the second Between the interfaces, and configured to process the charging signal from the first interface, and send the processed charging signal to the terminal device through the second interface; and a controller connected to the first Between the interface and the second interface, and connected to the signal processing circuit; the controller is configured to respectively identify the power supply and the fast charging technology applicable to the terminal device, and identify the power supply and After the terminal device supports the fast charging technology, the charging signal from the first interface is processed by controlling the signal processing circuit, so that the power supply can pass the signal processing by using the fast charging technology.
  • the circuit charges the terminal device.
  • a fast charging system includes: a power supply, a terminal device, and the fast charging line; and the fast charging line is connected between the power supply and the terminal device.
  • a fast charging method is performed by a controller disposed in a fast charging line, the fast charging line further comprising a first interface, a second interface, and a signal processing circuit;
  • the first interface is configured to connect a power supply;
  • the second interface is configured to connect to the terminal device;
  • the signal processing circuit is connected between the first interface and the second interface, and is configured to process a charging signal from the first interface, and
  • the charging signal is sent to the terminal device through the second interface;
  • the controller is connected between the first interface and the second interface, and is connected to the signal processing circuit;
  • the method includes: Identifying the power supply and the fast charging technology applicable to the terminal device respectively; determining that the power supply and the terminal device support the fast charging technology, by controlling the signal processing circuit to be from the first interface
  • the charging signal is processed such that the power supply can utilize the fast charging technique to charge the terminal device through the signal processing circuit.
  • the two ends of the fast charging line are respectively used for connecting the power supply and the terminal equipment, and in the fast charging line, the signal processing circuit is used for the first interface.
  • the charging signal is processed, and the controller is configured to separately identify the fast charging technology applicable to the power supply and the terminal device, and after identifying that the power supply and the terminal device support the fast charging technology, the charging signal from the first interface is controlled by the control signal processing circuit. The processing is performed so that the power supply can charge the terminal device through the signal processing circuit by using the fast charging technology.
  • the fast charging line fast charging system and fast charging method, as long as the power supply and the terminal equipment support the fast charging technology, even if the fast charging technology is different, the function of the controller and the signal processing circuit can be used.
  • the power supply uses the fast charging technology to charge the terminal device, thereby expanding the application range of the fast charging technology.
  • FIG. 1 is a block diagram of a connection of a fast charging line, a power supply, and a terminal device according to an embodiment
  • FIG. 2 is a block diagram of a specific connection of the fast charging line, the power supply, and the terminal device in the embodiment shown in FIG. 1;
  • FIG. 3 is a flow chart of a fast charging method provided by another embodiment
  • step S300 is a specific flow chart of step S300 in the fast charging method of the embodiment of FIG. 3;
  • FIG. 5 is a specific flow chart of the fast charging method of the embodiment shown in FIG. 3.
  • an embodiment provides a fast charging line 200, which is respectively used to connect a power supply 100 and a terminal device. 300.
  • the power supply 100 refers to a device capable of outputting electrical energy, such as a mobile power source.
  • the terminal device 300 is, for example, a portable electronic device such as a mobile phone, a tablet computer, or a smart speaker.
  • the power supply 100 and the terminal 300 can be applied to different fast charging technologies.
  • the fast charge line 200 includes a first interface 210, a signal processing circuit 230, a controller 240, and a second interface 220.
  • the first interface 210 is used to connect the power supply 100 so that data can be normally transmitted between the power supply 100 and the fast charging line 200.
  • the second interface 220 is used to connect the terminal device 300, so that data can be normally transmitted between the terminal device 300 and the fast charging line 200.
  • the first interface 210 can also be connected to the power supply 100 through an interface conversion device (such as an adapter) or other types of devices.
  • the first interface 210 and the second interface 220 can both be USB Type-C interfaces. Due to the fast charging technology, USB Fast charging technology such as PD technology needs to communicate using USB Type-C interface, while other fast charging technologies (such as QC2.0 technology) only need USB interface to communicate, and USB The Type-C interface can be compatible with a common USB interface. Therefore, in the embodiment of the present invention, the first interface 210 and the second interface 220 are both USB.
  • the Type-C interface enables the fast charging line 200 to be applied to more types of fast charging technologies.
  • the signal processing circuit 230 is connected between the first interface 210 and the second interface 220. Specifically, the input end of the signal processing circuit 230 is connected to the first interface 210, and the output end of the signal processing circuit 230 is connected to the second interface 220. Moreover, the signal processing circuit 230 is configured to process the charging signal from the first interface 210, and send the processed charging signal to the terminal device 300 through the second interface 220.
  • the process of processing the charging signal from the first interface 210 by the signal processing circuit 230 is, for example, converting the voltage or current of the charging signal from the first interface 210.
  • the charging signal from the first interface 210 refers to a charging signal input by the power supply 100 to the first interface 210 or a charging signal input by the power supply 100 to the first interface 210 through the interface conversion device or other device.
  • the charging signal refers to an electrical signal used to charge the terminal device 300.
  • the controller 240 is connected between the first interface 210 and the second interface 220 and connected to the signal processing circuit 230.
  • the controller 240 is configured to identify the fast charging technologies applicable to the power supply 100 and the terminal device 300 respectively, and after identifying that both the power supply 100 and the terminal device 300 support the fast charging technology, the control signal processing circuit 230 is used to The charging signal of the interface 210 is processed such that the power supply 100 can charge the terminal device 300 through the signal processing circuit 230 using fast charging technology.
  • the fast charging technology refers to adjusting the input voltage and current value of the terminal device 300 through the chipset, thereby shortening the charging time.
  • Fast charging technology such as VOOC flash charging technology, QC2.0 technology, USB PD technology, etc.
  • the normal charging mode includes, for example, a charging process of trickle charging, constant current charging, and constant voltage charging for a lithium battery, and the charging voltage is usually 5V.
  • the controller 240 may try to communicate with the protocol chip in the power supply 100 in the role of the terminal device 300 according to the identification mode of each fast charging technology. If the controller 240 successfully communicates with the power supply 100 according to some fast charging technology, the power supply 100 is considered to support the fast charging technology. For example: controller 240 can try to utilize USB PD technology communicates with power supply 100, if power supply 100 also supports USB In the PD technology, when the power supply 100 is connected to the fast charging line 200 through the first interface 210, the protocol chip in the power supply 100 passes through the USB.
  • the CC signal of the Type-C interface communicates with the controller 240 and broadcasts power supply capability to the controller 240 (5V/3A, 9V/2.7A and 12V/2A), at which time the controller 240 can recognize that the power supply 100 is suitable for USB PD technology.
  • the controller 240 when the controller 240 recognizes the fast charging technology applied to the terminal device 300, it can also attempt to communicate with the terminal device 300 in the role of the power supply 100 in accordance with the identification mode of each fast charging technology. If the controller 240 successfully communicates with the terminal device 300 according to some fast charging technology, the terminal device 300 is considered to support the fast charging technology. For example, the controller 240 may attempt to communicate with the terminal device 300 by using the QC2.0 technology.
  • the terminal device 300 also supports the QC2.0 technology and assumes that the terminal device 300 is a mobile phone, then when the terminal device 300 passes through the second interface 220, After the fast charging line 200 is connected, Hvdcp (high voltage dedicated charger for Android user space) The process starts, and the voltage of 0.325V is loaded on D+ for more than 1.25s. If the controller 240 detects that the D+ voltage is maintained at 0.325V for more than 1.25s, it can be recognized that the terminal device 300 is suitable for QC2.0 technology. It can be understood that the controller 240 can also identify the fast charging protocol applicable to the power supply 100 and the terminal device 300 in other manners.
  • Hvdcp high voltage dedicated charger for Android user space
  • the controller 240 After the controller 240 identifies the fast charging technology applicable to the power supply 100 and the terminal device 300, the controller 240 can establish a fast charging channel with the power supply 100 and the terminal device 300 respectively, thereby ensuring power supply during the fast charging process.
  • the communication between the power source 100 and the terminal device 300 can be normally performed under the relay of the controller 240.
  • the controller 240 can also control the signal processing circuit 230 to process the charging signal from the first interface 210, for example, to convert voltage or current, Therefore, the charging signal from the first interface 210 can be converted into a charging signal suitable for the fast charging of the terminal device 300, thereby ensuring that the charging power output by the power supply 100 during the fast charging process finally reaches the terminal device 300 and can be applied to the terminal device. 300 fast charging technology. Therefore, under the relay control of the controller 240 and the signal processing circuit 230, the power supply 100 can be charged by the fast charging technology.
  • the controller 240 and the signal processing can be performed.
  • the function of the circuit 230 enables the power supply 100 to charge the terminal device 300 by using a fast charging technology, thereby expanding the application range of the fast charging technology.
  • the signal processing circuit 230 includes a first detecting unit 231 and a voltage-current converting unit 232 that are sequentially connected and respectively connected to the controller 240. Moreover, the first detecting unit 231 is also connected to the first interface 210.
  • the first detecting unit 231 is configured to detect a voltage or current of a charging signal from the first interface 210, and send the detected first voltage value and second current value to the controller 240.
  • the voltage-current conversion unit 232 is configured to convert the voltage or current of the charging signal from the first interface 210 under the control of the controller 240.
  • the first detecting unit 231 can be implemented by using a conventional voltage sampling circuit and a current sampling circuit.
  • the voltage-current conversion unit 232 can be implemented using a conventional voltage conversion circuit and a current conversion circuit.
  • the controller 240 can control the voltage and current conversion unit 232 to charge from the first interface 210 based on the first voltage value and the first current value output by the power supply 100 detected by the first detecting unit 231.
  • the voltage and current of the signal are converted to values suitable for the terminal device 300.
  • the signal processing circuit 230 further includes a second detecting unit 233.
  • the second detecting unit 233 is connected to the voltage/current converting unit 232, the controller 240, and the second interface 220, respectively.
  • the second detecting unit 233 is configured to detect the voltage and current of the output signal of the voltage-current converting unit 232, and send the detected second voltage value and the second current value to the controller 240.
  • the second detecting unit 233 can be implemented by using a conventional voltage sampling circuit and a current sampling circuit.
  • the controller 240 controls the voltage-current conversion unit 232
  • the second voltage value and the second current value fed back by the second detecting unit 233 can be used to determine whether the voltage-current conversion unit 232 has performed an accurate conversion process, if When it is judged that the signal output from the voltage-current converting unit 232 has not reached the ideal value, the voltage-current converting unit 232 is again controlled until the voltage-current converting unit 232 outputs the ideal voltage and current.
  • the controller 240 is specifically configured to trigger the power supply 100 to output the first fast charging technology after the power supply 100 is recognized and the terminal device 300 supports the first fast charging technology and the second fast charging technology respectively.
  • Maximum power and the control signal processing circuit 230 converts the charging signal from the first interface 210 into a charging signal suitable for the second fast charging technique, and utilizes the charging signal suitable for the second fast charging technique according to the second fast charging technique.
  • the terminal device 300 is charged.
  • the first fast charging technology and the second fast charging technology refer to specific fast charging technology.
  • Specific fast charging technology such as Quick Charge 1.0 technology, USB PD technology, QC2.0 technology, VOOC flash charging technology, Quick Charge 3.0 technology, MediaTek's Pump Express 3.0 technology or other technologies that enable fast charging.
  • the first fast charging technology and the second fast charging technology can be the same specific fast charging technology as described above, for example, both are USB PD technology; or the first fast charging technology and the second fast charging technology can also be different specific fast charging technologies, for example, the first fast charging technology is USB PD technology, and the second fast charging technology is QC2.0 technology.
  • the controller 240 triggers the power supply 100 to output the maximum power allowed by the first fast charging technology
  • the first fast charging technology is USB PD technology
  • the maximum power allowed by the first fast charging technology is 9V/2.7A corresponding power
  • the power supply 100 output 9V/2.7A.
  • the manner triggered by the controller 240 can also be implemented according to the role of the terminal device 300 and according to the first fast charging technology, for example, if the first fast charging technology is USB.
  • the controller 240 can send a power supply request to the power supply 100 and select 9V, after which the power supply 100 can output 9V/2.7A; If the first fast charging technology is QC2.0 technology, the controller 240 can trigger the power supply 100 to output the maximum power that the first fast charging technology can allow by setting the voltages on D+ and D-.
  • the signal processing circuit 230 converts the charging signal from the first interface 210 into a charging signal suitable for the second fast charging technique.
  • the voltage of the charging signal from the first interface 210 can be Both the current and the current are converted to input voltage and input current that the second fast charge technology can accept.
  • the power supply can be powered by the combination of the controller 240 and the signal processing circuit 230.
  • the output power of the power source 100 is converted to any power applicable to the second fast charging technology, thereby enabling the terminal device 300 to perform fast charging with the maximum power allowed by the second fast charging technology supported by itself to improve the charging efficiency.
  • the maximum power pair allowed by the first fast charging technology can still be utilized under the joint action of the controller 240 and the signal processing circuit 230.
  • the terminal device 300 performs fast charging.
  • the controller 240 is further configured to control the power supply 100 to charge the terminal device 300 by using a normal charging mode after identifying that one of the power supply 100 and the terminal device 300 does not support the fast charging technology.
  • the charging power of the normal charging mode is smaller than the charging power of the fast charging technology.
  • the normal charging mode for example, for a lithium battery, includes a charging process of trickle charging, constant current charging, constant voltage charging, and the charging voltage is usually 5V.
  • the charging power refers to the power output from the power supply 100 at the time of charging.
  • the controller 240 detects that the power supply 100 and the terminal device 300 support different or the same fast charging technology, the method of converting the voltage value or current value of the charging signal from the first interface 210 is adopted.
  • the power supply 100 can be used to charge the terminal device 200 by using the fast charging technology; if the controller 240 detects that one of the power supply 100 and the terminal device 300 does not support the fast charging technology, then the power supply 100 is controlled to utilize the normal charging mode.
  • the terminal device 300 is charged. Therefore, the fast charging line 200 provided by the embodiment of the present invention is applicable to the power supply 100 and the terminal device 300 which are supported by the fast charging technology, the power supply 100 and the terminal device 300, the power supply 100 and the terminal which are supported by the fast charging technology.
  • One of the devices 300 does not support these conditions of fast charging technology, and thus has a wide range of applications.
  • the controller 240 is further configured to control the power supply 100 to charge the terminal device 300 using the normal charging mode before identifying the fast charging technology applicable to the power supply 100 and the terminal device 300.
  • the charging power of the normal charging mode is smaller than the charging power of the fast charging technology.
  • the normal charging mode for example, for a lithium battery, includes a charging process of trickle charging, constant current charging, constant voltage charging, and the charging voltage is usually 5V.
  • the charging power refers to the power output from the power supply 100 at the time of charging.
  • the controller 240 is specifically configured to determine, when the power supply 100 and the fast charging technology applied to the terminal device 300 are recognized, that the voltage or current of the charging signal from the first interface 210 is higher than the value allowed by the normal charging mode.
  • the corresponding control signal processing circuit 230 lowers the voltage or current of the charging signal from the first interface 210, and charges the terminal device 300 with the reduced charging signal.
  • the controller 240 can determine whether the charging signal from the first interface 210 is suitable for charging the terminal device 300 by using the normal charging mode by using the first voltage value and the first current value fed back by the first detecting unit 232. If not, Then, the control signal processing circuit 230 performs a corresponding conversion process on the charging signal from the first interface 210. For example, if the voltage of the charging signal from the first interface 210 is greater than 5V, the controller 240 controls the voltage-current conversion unit 232 to lower the voltage to 5V.
  • the power supply 100 first charges the terminal device 300 by using the normal charging mode, thereby ensuring security.
  • the controller 240 recognizes the fast charging technology applied to the power supply 100 and the terminal device 300, the control of the signal processing circuit 230 is combined to enable the power supply 100 to charge the terminal device 300 by using a fast charging technology. Improve charging efficiency on the premise of ensuring safety.
  • the fast charge line 200 further includes a display unit 250, and the display unit 250 is coupled to the controller 240.
  • the controller 240 can send the charging information of the current charging mode (such as fast charging or normal charging mode), charging time, charging current, etc. to the display unit 250 in real time, thereby facilitating the user to directly view the current charging situation.
  • the current charging mode such as fast charging or normal charging mode
  • the fast charging line is connected between the power supply and the terminal device. And, the fast charging line includes:
  • a second interface configured to connect to the terminal device
  • a signal processing circuit is connected between the first interface and the second interface, and configured to process a charging signal from the first interface, and send the processed charging signal through the second interface To the terminal device;
  • controller connected between the first interface and the second interface, and connected to the signal processing circuit; the controller is configured to separately identify the power supply and the fast charging technology applicable to the terminal device, And after identifying that the power supply and the terminal device support the fast charging technology, processing the charging signal from the first interface by controlling the signal processing circuit, so that the power supply can utilize the The fast charging technology charges the terminal device through the signal processing circuit.
  • the controller is specifically configured to trigger the power supply to output the first after the power supply is recognized, the terminal device supports the first fast charging technology, and the second fast charging technology respectively a maximum power allowed by the fast charge technology, and controlling the signal processing circuit to convert the charging signal from the first interface into a charging signal suitable for the second fast charging technique, and according to the second fast charging technology
  • the terminal device is charged with a charging signal suitable for the second fast charging technique.
  • the controller is further configured to, after identifying that the power supply and the terminal device do not support the fast charging technology, control the power supply to utilize the normal charging mode The terminal device performs charging; wherein the charging power of the normal charging mode is less than the charging power of the fast charging technology.
  • the controller is further configured to control the power supply to charge the terminal device by using a normal charging mode before identifying the power supply and the fast charging technology applicable to the terminal device. Wherein the charging power of the normal charging mode is less than the charging power of the fast charging technology.
  • the controller is specifically configured to determine that a voltage or current of a charging signal from the first interface is higher than before the power supply and the fast charging technology applicable to the terminal device are recognized.
  • the signal processing circuit is correspondingly controlled to reduce the voltage or current of the charging signal from the first interface, and the terminal device is charged by using the charging signal obtained after the reduction.
  • the first interface and the second interface are both USB Type-C interfaces.
  • the signal processing circuit includes a first detecting unit, a voltage current converting unit that are sequentially connected and respectively connected to the controller; and the first detecting unit is further connected to the first interface ;
  • the first detecting unit is configured to detect a voltage and a current of a charging signal from the first interface, and send the detected first voltage value and a first current value to the controller; the voltage current converting unit A voltage or current for converting a charging signal from the first interface under control of the controller.
  • the signal processing circuit further includes a second detecting unit; the second detecting unit is respectively connected to the voltage current converting unit, the controller, and the second interface;
  • the second detecting unit is configured to detect a voltage and a current of the voltage current converting unit output signal, and send the detected second voltage value and the second current value to the controller.
  • the fast charge line further includes a display unit; the display unit is coupled to the controller.
  • fast charging system provided by the embodiments of the present invention corresponds to the fast charging line provided by the foregoing embodiment, and details are not described herein again.
  • the power supply 100 refers to a device capable of outputting electrical energy, such as a mobile power source.
  • the terminal device 300 is, for example, a portable electronic device such as a mobile phone, a tablet computer, or a smart speaker.
  • the power supply 100 and the terminal 300 can be applied to different fast charging technologies.
  • the fast charge line 200 includes a first interface 210, a signal processing circuit 230, a controller 240, and a second interface 220.
  • the first interface 210 is used to connect the power supply 100 so that data can be normally transmitted between the power supply 100 and the fast charging line 200.
  • the second interface 220 is used to connect the terminal device 300, so that data can be normally transmitted between the terminal device 300 and the fast charging line 200.
  • the first interface 210 can also be connected to the power supply 100 through an interface conversion device (such as an adapter) or other types of devices.
  • the first interface 210 and the second interface 220 can both be USB Type-C interfaces. Due to the fast charging technology, USB Fast charging technology such as PD technology needs to communicate using USB Type-C interface, while other fast charging technologies (such as QC2.0 technology) only need USB interface to communicate, and USB The Type-C interface can be compatible with a common USB interface. Therefore, in the embodiment of the present invention, the first interface 210 and the second interface 220 are both USB.
  • the Type-C interface enables the fast charging line 200 to be applied to more types of fast charging technologies.
  • the signal processing circuit 230 is connected between the first interface 210 and the second interface 220. Specifically, the input end of the signal processing circuit 230 is connected to the first interface 210, and the output end of the signal processing circuit 230 is connected to the second interface 220. Moreover, the signal processing circuit 230 is configured to process the charging signal from the first interface 210, and send the processed charging signal to the terminal device 300 through the second interface 220.
  • the process of processing the charging signal from the first interface 210 by the signal processing circuit 230 is, for example, converting the voltage or current of the charging signal from the first interface 210.
  • the charging signal from the first interface 210 refers to a charging signal input by the power supply 100 to the first interface 210 or a charging signal input by the power supply 100 to the first interface 210 through the interface conversion device or other device.
  • the charging signal refers to an electrical signal used to charge the terminal device 300.
  • the controller 240 is connected between the first interface 210 and the second interface 220 and connected to the signal processing circuit 230.
  • the fast charging method provided in this embodiment includes the following content.
  • Step S200 Identify the fast charging technologies applicable to the power supply 100 and the terminal device 300, respectively.
  • the fast charging technology refers to adjusting the input voltage and current value of the terminal device 300 through the chipset, thereby shortening the charging time.
  • Fast charging technology such as VOOC flash charging technology, QC2.0 technology, USB PD technology, etc.
  • the normal charging mode includes, for example, a charging process of trickle charging, constant current charging, and constant voltage charging for a lithium battery, and the charging voltage is usually 5V.
  • the controller 240 may try to communicate with the protocol chip in the power supply 100 in the role of the terminal device 300 according to the identification mode of each fast charging technology. If the controller 240 successfully communicates with the power supply 100 according to some fast charging technology, the power supply 100 is considered to support the fast charging technology. For example: controller 240 can try to utilize USB PD technology communicates with power supply 100, if power supply 100 also supports USB In the PD technology, when the power supply 100 is connected to the fast charging line 200 through the first interface 210, the protocol chip in the power supply 100 passes through the USB.
  • the CC signal of the Type-C interface communicates with the controller 240 and broadcasts power supply capability to the controller 240 (5V/3A, 9V/2.7A and 12V/2A), at which time the controller 240 can recognize that the power supply 100 is suitable for USB PD technology.
  • the controller 240 when the controller 240 recognizes the fast charging technology applied to the terminal device 300, it can also attempt to communicate with the terminal device 300 in the role of the power supply 100 in accordance with the identification mode of each fast charging technology. If the controller 240 successfully communicates with the terminal device 300 according to some fast charging technology, the terminal device 300 is considered to support the fast charging technology. For example, the controller 240 may attempt to communicate with the terminal device 300 by using the QC2.0 technology.
  • the terminal device 300 also supports the QC2.0 technology and assumes that the terminal device 300 is a mobile phone, then when the terminal device 300 passes through the second interface 220, After the fast charging line 200 is connected, Hvdcp (high voltage dedicated charger for Android user space) The process starts, and the voltage of 0.325V is loaded on D+ for more than 1.25s. If the controller 240 detects that the D+ voltage is maintained at 0.325V for more than 1.25s, it can be recognized that the terminal device 300 is suitable for QC2.0 technology. It can be understood that the controller 240 can also identify the fast charging protocol applicable to the power supply 100 and the terminal device 300 in other manners.
  • Hvdcp high voltage dedicated charger for Android user space
  • Step S400 After determining that both the power supply 100 and the terminal device 300 support the fast charging technology, the charging signal from the first interface 210 is processed by the control signal processing circuit 230, so that the power supply 100 can pass the signal processing circuit 230 by using the fast charging technology.
  • the terminal device 300 performs charging.
  • the controller 240 After the controller 240 identifies the fast charging technology applicable to the power supply 100 and the terminal device 300, the controller 240 can establish a fast charging channel with the power supply 100 and the terminal device 300 respectively, thereby ensuring power supply during the fast charging process.
  • the communication between the power source 100 and the terminal device 300 can be normally performed under the relay of the controller 240.
  • the controller 240 can also control the signal processing circuit 230 to process the charging signal from the first interface 210, for example, to convert voltage or current, Therefore, the charging signal from the first interface 210 can be converted into a charging signal suitable for the fast charging of the terminal device 300, thereby ensuring that the charging power output by the power supply 100 during the fast charging process finally reaches the terminal device 300 and can be applied to the terminal device. 300 fast charging technology. Therefore, under the relay control of the controller 240 and the signal processing circuit 230, the power supply 100 can be charged by the fast charging technology.
  • the signal processing circuit 230 includes a first detecting unit 231, a voltage current converting unit 232, and a second detecting unit 233 that are sequentially connected and respectively connected to the controller 240. Moreover, the first detecting unit 231 is also connected to the first interface 210. The second detecting unit 233 is also connected to the second interface 220.
  • the first detecting unit 231 is configured to detect a voltage or current of a charging signal from the first interface 210, and send the detected first voltage value and second current value to the controller 240.
  • the voltage-current conversion unit 232 is configured to convert the voltage or current of the charging signal from the first interface 210 under the control of the controller 240.
  • the second detecting unit 233 is configured to detect the voltage and current of the output signal of the voltage-current converting unit 232, and send the detected second voltage value and the second current value to the controller 240.
  • the first detecting unit 231 and the second detecting unit 233 can be implemented by using a conventional voltage sampling circuit and a current sampling circuit.
  • the voltage-current conversion unit 232 can be implemented using a conventional voltage conversion circuit and a current conversion circuit.
  • the controller 240 can control the voltage and current conversion unit 232 to charge from the first interface 210 based on the first voltage value and the first current value output by the power supply 100 detected by the first detecting unit 231.
  • the voltage and current of the signal are converted to values suitable for the terminal device 300.
  • the controller 240 controls the voltage-current conversion unit 232
  • the second voltage value and the second current value fed back by the second detecting unit 233 can be used to determine whether the voltage-current conversion unit 232 has performed an accurate conversion process, if When it is judged that the signal output from the voltage-current converting unit 232 has not reached the ideal value, the voltage-current converting unit 232 is again controlled until the voltage-current converting unit 232 outputs the ideal voltage and current.
  • the controller 240 and the signal processing can be performed.
  • the function of the circuit 230 enables the power supply 100 to charge the terminal device 300 by using a fast charging technology, thereby expanding the application range of the fast charging technology.
  • step S400 specifically includes the following content, please refer to FIG. 4.
  • Step S410 After the power supply 100 and the terminal device 300 respectively support the first fast charging technology and the second fast charging technology, the power supply 100 is triggered to output the maximum power allowed by the first fast charging technology.
  • the first fast charging technology and the second fast charging technology refer to specific fast charging technology.
  • Specific fast charging technology such as Quick Charge 1.0 technology, USB PD technology, QC2.0 technology, VOOC flash charging technology, Quick Charge 3.0 technology, MediaTek's Pump Express 3.0 technology or other technologies that enable fast charging.
  • the first fast charging technology and the second fast charging technology can be the same specific fast charging technology as described above, for example, both are USB PD technology; or the first fast charging technology and the second fast charging technology can also be different specific fast charging technologies, for example, the first fast charging technology is USB PD technology, and the second fast charging technology is QC2.0 technology.
  • the controller 240 triggers the power supply 100 to output the maximum power allowed by the first fast charging technology
  • the first fast charging technology is USB PD technology
  • the maximum power allowed by the first fast charging technology is 9V/2.7A corresponding power
  • the power supply 100 output 9V/2.7A.
  • the manner triggered by the controller 240 can also be implemented according to the role of the terminal device 300 and according to the first fast charging technology, for example, if the first fast charging technology is USB.
  • the controller 240 can send a power supply request to the power supply 100 and select 9V, after which the power supply 100 can output 9V/2.7A; If the first fast charging technology is QC2.0 technology, the controller 240 can trigger the power supply 100 to output the maximum power that the first fast charging technology can allow by setting the voltages on D+ and D-.
  • Step S420 The control signal processing circuit 230 converts the charging signal from the first interface 210 into a charging signal suitable for the second fast charging technique to perform the terminal device 300 with the charging signal suitable for the second fast charging technology according to the second fast charging technology. Charging.
  • the signal processing circuit 230 converts the charging signal from the first interface 210 into a charging signal suitable for the second fast charging technique.
  • the voltage of the charging signal from the first interface 210 can be Both the current and the current are converted to input voltage and input current that the second fast charge technology can accept.
  • the power supply can be powered by the combination of the controller 240 and the signal processing circuit 230.
  • the output power of the power source 100 is converted to any power applicable to the second fast charging technology, thereby enabling the terminal device 300 to perform fast charging with the maximum power allowed by the second fast charging technology supported by itself to improve the charging efficiency.
  • the maximum power pair allowed by the first fast charging technology can still be utilized under the joint action of the controller 240 and the signal processing circuit 230.
  • the terminal device 300 performs fast charging.
  • the fast charging method before the step S400, further includes the following content, please refer to FIG. 5.
  • Step S300 It is judged whether one of the power supply 100 and the terminal device 300 does not support the fast charging technology, and if so, step S500 is performed; otherwise, step S400 is performed.
  • Step S500 The power supply source 100 is controlled to charge the terminal device 300 using a normal charging mode. Among them, the charging power of the normal charging mode is smaller than the charging power of the fast charging technology.
  • the normal charging mode for example, for a lithium battery, includes a charging process of trickle charging, constant current charging, constant voltage charging, and the charging voltage is usually 5V.
  • the charging power refers to the power output from the power supply 100 at the time of charging.
  • the controller 240 detects that the power supply 100 and the terminal device 300 support different or the same fast charging technology, the method of converting the voltage value or current value of the charging signal from the first interface 210 is adopted.
  • the power supply 100 can be used to charge the terminal device 200 by using the fast charging technology; if the controller 240 detects that one of the power supply 100 and the terminal device 300 does not support the fast charging technology, then the power supply 100 is controlled to utilize the normal charging mode.
  • the terminal device 300 is charged. Therefore, the fast charging line 200 provided by the embodiment of the present invention is applicable to the power supply 100 and the terminal device 300 which are supported by the fast charging technology, the power supply 100 and the terminal device 300, the power supply 100 and the terminal which are supported by the fast charging technology.
  • One of the devices 300 does not support these conditions of fast charging technology, and thus has a wide range of applications.
  • the fast charging method further includes:
  • Step S100 The power supply source 100 is controlled to charge the terminal device 300 using a normal charging mode. Among them, the charging power of the normal charging mode is smaller than the charging power of the fast charging technology.
  • step S100 includes: when the voltage or current of the charging signal from the first interface 210 is higher than the value allowed by the normal charging mode, the corresponding control signal processing circuit 230 reduces the voltage or current of the charging signal from the first interface 210, The terminal device 300 is charged by using the reduced charging signal.
  • the controller 240 can determine whether the charging signal from the first interface 210 is suitable for charging the terminal device 300 by using the normal charging mode by using the first voltage value and the first current value fed back by the first detecting unit 232. If not, Then, the control signal processing circuit 230 performs a corresponding conversion process on the charging signal from the first interface 210. For example, if the voltage of the charging signal from the first interface 210 is greater than 5V, the controller 240 controls the voltage-current conversion unit 232 to lower the voltage to 5V.
  • the power supply 100 first charges the terminal device 300 by using the normal charging mode, thereby ensuring security.
  • the controller 240 recognizes the fast charging technology applied to the power supply 100 and the terminal device 300, the control of the signal processing circuit 230 is combined to enable the power supply 100 to charge the terminal device 300 by using a fast charging technology. Improve charging efficiency on the premise of ensuring safety.
  • FIG. 3 to FIG. 5 are schematic flowcharts of a method according to an embodiment of the present invention. It should be understood that although the various steps in the flowcharts of FIGS. 3 through 5 are sequentially displayed as indicated by the arrows, these steps are not necessarily performed in the order indicated by the arrows. Except as explicitly stated herein, the execution of these steps is not strictly limited, and may be performed in other sequences. Moreover, at least some of the steps in FIGS.
  • 3 to 5 may include a plurality of sub-steps or stages, which are not necessarily performed at the same time, but may be executed at different times, and the execution order thereof is also It is not necessarily performed sequentially, but may be performed alternately or alternately with at least a portion of other steps or sub-steps or stages of other steps.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)

Abstract

L'invention concerne un câble de charge à grande vitesse (200), comprenant une première interface (210), utilisée pour se connecter à une alimentation électrique (100) ; une seconde interface (220), utilisée pour se connecter à un dispositif terminal (300) ; un circuit de traitement de signal (230), qui est connecté entre la première interface (210) et la seconde interface (220) et qui est utilisé pour traiter des signaux de charge provenant de la première interface (210) ; un contrôleur (240), qui est connecté entre la première interface (210) et la seconde interface (220) et est également connecté au circuit de traitement de signal (230) de façon à identifier des technologies de charge à grande vitesse applicables à l'alimentation électrique (100) et au dispositif terminal (300) respectivement, et après qu'une technologie de charge à grande vitesse supportée à la fois par l'alimentation électrique (100) et le dispositif terminal (300) est identifiée, le circuit de traitement de signal (230) est commandé pour traiter des signaux de charge provenant de la première interface (210), de telle sorte que l'alimentation électrique (100) peut utiliser la technologie de charge à grande vitesse pour charger le dispositif terminal (300).
PCT/CN2017/075874 2017-02-28 2017-03-07 Câble de charge à grande vitesse, système de charge à grande vitesse et procédé de charge à grande vitesse WO2018157412A1 (fr)

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CN108599530A (zh) * 2018-03-15 2018-09-28 珠海昇生微电子有限责任公司 一种供电模式转换器以及供电模式转换方法
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