WO2021189392A1 - Dispositif de charge et procédé et dispositif de commande de charge - Google Patents

Dispositif de charge et procédé et dispositif de commande de charge Download PDF

Info

Publication number
WO2021189392A1
WO2021189392A1 PCT/CN2020/081536 CN2020081536W WO2021189392A1 WO 2021189392 A1 WO2021189392 A1 WO 2021189392A1 CN 2020081536 W CN2020081536 W CN 2020081536W WO 2021189392 A1 WO2021189392 A1 WO 2021189392A1
Authority
WO
WIPO (PCT)
Prior art keywords
voltage
charged
charging
real
output voltage
Prior art date
Application number
PCT/CN2020/081536
Other languages
English (en)
Chinese (zh)
Inventor
林宋荣
李鹏
Original Assignee
深圳市大疆创新科技有限公司
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 深圳市大疆创新科技有限公司 filed Critical 深圳市大疆创新科技有限公司
Priority to PCT/CN2020/081536 priority Critical patent/WO2021189392A1/fr
Priority to CN202080005076.7A priority patent/CN112689935A/zh
Publication of WO2021189392A1 publication Critical patent/WO2021189392A1/fr

Links

Images

Classifications

    • 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
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/20—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for electronic equipment
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/02—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess current
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H9/00—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
    • H02H9/04—Emergency protective circuit arrangements for limiting excess current or voltage without disconnection responsive to excess voltage
    • 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

  • This application relates to the field of charging, and in particular to a charging device, a charging control method and a device.
  • the battery PACK voltage is usually relatively high, and it is necessary to use a high-voltage output charger to charge.
  • the full charge voltage of a single cell is 4.2V and the initial charge voltage is 3V. Therefore, for a battery with multiple cells in series, the difference between the initial charge voltage and the full charge voltage will reach more than 10V.
  • you will hear the sound of sparking, and the cause of the sparking is due to the voltage difference above 10V. Due to the existence of this voltage difference, a surge will be formed at the port when the battery is inserted. The surge voltage will damage the communication components, and the surge current will damage the charging circuit of the charger.
  • the application provides a charging device, a charging control method and a device.
  • an embodiment of the present application provides a charging control method, and the method includes:
  • an embodiment of the present application provides a charging control device, the device including:
  • Storage device for storing program instructions
  • One or more processors call program instructions stored in the storage device, and when the program instructions are executed, the one or more processors are individually or collectively configured to implement the following operations:
  • an embodiment of the present application provides a charging control method, and the method includes:
  • an embodiment of the present application provides a charging control device, the device including:
  • Storage device for storing program instructions
  • One or more processors call program instructions stored in the storage device, and when the program instructions are executed, the one or more processors are individually or collectively configured to implement the following operations:
  • an embodiment of the present application provides a charging device, including:
  • the charging interface including the power output terminal, can be electrically connected to the power terminal of the device to be charged;
  • a processor electrically connected to the charging interface
  • the processor is configured to obtain the real-time voltage of the power terminal of the device to be charged when the device to be charged is inserted into the charging interface of the charging device; determine the output of the power source output terminal according to the real-time voltage and the gradient threshold Voltage to charge the device to be charged through the output voltage; repeat the above steps until the output voltage increases to the full charging voltage of the device to be charged.
  • this application detects the real-time voltage of the device to be charged when the device to be charged is inserted into the charging interface of the charging device, and intelligently adjusts the output voltage of the charging interface according to the real-time voltage and gradient threshold, so that The output voltage gradually increases to ensure that the output voltage is close to the real-time voltage, and the soft start of the charging process is realized; at the same time, when the charging device is inserted into the charging interface of the charging device, the power output terminal of the charging interface has no voltage, which solves the problem of the device to be charged.
  • the real-time voltage is similar to the output voltage of the charging device, so during the charging process, hot plugging will not cause ignition.
  • FIG. 1 is a schematic structural diagram of a charging device in an embodiment of the present application, revealing the connection relationship between the charging device and the device to be charged;
  • FIG. 2 is a schematic structural diagram of a charging device in another embodiment of the present application.
  • 3A is a schematic structural diagram of a charging device in another embodiment of the present application.
  • FIG. 3B is a schematic structural diagram of an implementation manner of the charging device of the embodiment shown in FIG. 3A;
  • 3C is a schematic structural diagram of the first voltage divider circuit in the charging device of the embodiment shown in FIG. 3B;
  • 3D is a schematic structural diagram of another implementation manner of the charging device of the embodiment shown in FIG. 3A;
  • FIG. 3E is a schematic structural diagram of a switch circuit in the charging device of the embodiment shown in FIG. 3D;
  • FIG. 4A is a schematic structural diagram of a charging device in another embodiment of the present application.
  • FIG. 4B is a schematic structural diagram of a voltage regulating circuit in the charging device of the embodiment shown in FIG. 4A;
  • FIG. 5 is a schematic diagram of a method flow of a charging control method in an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of a charging control method in another embodiment of the present application.
  • Fig. 7 is a schematic structural diagram of a charging control device in another embodiment of the present application.
  • 100 charging device; 110: charging interface; 111: power output terminal; 112: communication connection terminal; 120: processor; 130: voltage detection circuit; 131: first voltage divider circuit; R1: first resistor; R2: No. Two resistors; 132: switch circuit; Q1: first MOS tube; Q2: second MOS tube; Q3: third MOS tube; C1: first capacitor; R6: sixth resistor; R7: seventh resistor; 140: voltage Adjusting circuit; U1: comparator; R3: third resistor; C2: second capacitor; 141: second voltage divider circuit; R4: fourth resistor; R5: fifth resistor; 200: device to be charged; 210: power supply terminal ; 220: Communication terminal.
  • chargers generally use CC/CV technology.
  • CC constant current to charge the battery.
  • CV constant voltage to float the battery. Therefore, the charger sets the CV voltage as the battery's full charge voltage Vmax. .
  • Vmax-Vbat When the battery is at the lowest voltage -Vbat, there is a voltage difference of Vmax-Vbat momentarily when the charger is inserted, and this voltage difference will cause a great surge current.
  • the battery usually includes a plurality of battery cells connected in series.
  • the flight time of a drone is usually the battery life of the drone. That is, in the use of industrial drones and agricultural drones, the pilot usually controls the single operation time to unmanned The time when the machine's battery is about to run out.
  • users often do not purchase spare batteries.
  • the traditional approach is to control the battery's return cut-off power to a relatively high threshold. As a result, the operation efficiency of drones is not high.
  • this application detects the real-time voltage of the device to be charged when the device to be charged is inserted into the charging interface of the charging device, and intelligently adjusts the output voltage of the charging interface according to the real-time voltage and gradient threshold, so that the output voltage gradually increases to ensure The output voltage is close to the real-time voltage, realizing the soft start of the charging process; at the same time, when the charging device is inserted into the charging interface of the charging device, there is no voltage at the power output of the charging interface, which solves the problem of high voltage when the charging device is inserted into the charging device.
  • the charging device will increase the output voltage at any time to be close to the real-time voltage of the device to be charged, which makes the real-time voltage of the device to be charged and the output of the charging device during hot plugging
  • the voltages are similar, so during the charging process, hot plugging will not cause ignition. Therefore, the effect that the drone battery can be charged at a lower power level can be achieved, and the risk of use when the drone battery is charged with low power can be avoided, so that the operating efficiency of the drone can be improved, and the user's cost can be saved.
  • the charging device 100 may include a charging interface 110 and a processor 120.
  • the power terminal 210 is electrically connected, and the processor 120 is electrically connected to the charging interface 110.
  • the processor 120 is used to obtain the real-time voltage of the power terminal 210 of the device to be charged 200 when the device to be charged 200 is inserted into the charging interface 110 of the charging device 100; determine the output voltage of the power output terminal 111 according to the real-time voltage and gradient threshold, The device 200 to be charged is charged by the output voltage; the above steps are repeated until the output voltage increases to the full charging voltage of the device 200 to be charged.
  • the embodiment of the present application gradually increases the output voltage of the power output terminal 111 of the charging interface 110, and sets the gradient threshold so that the output voltage is always close to the real-time voltage of the power terminal 210 of the device to be charged 200, thereby realizing the soft start of the charging process
  • the inrush current and ignition problems caused by the high voltage difference at the moment 200 is inserted into the charging device 100.
  • the gradient threshold is determined according to the maximum power of the device 200 to be charged. This setting causes the output voltage to increase slowly, ensuring that the voltage difference between the power supply output terminal 111 and the power supply terminal 210 is always within a safe range.
  • the maximum power of the device to be charged 200 is used to determine the maximum value of the difference between the output voltage and the real-time voltage when the device to be charged 200 is in a safe charging state, and the gradient threshold is less than or equal to the maximum value.
  • the gradient threshold is equal to the maximum value, and the charging process of the device to be charged 200 can be realized at the fastest speed; optionally, the gradient threshold is greater than the maximum value. It should be understood that the gradient threshold value of the embodiment of the present application is greater than 0 to ensure that the output voltage is gradually increased, so as to realize the charging of the device 200 to be charged.
  • the gradient threshold in the embodiment of the present application may be a preset value, that is, when the charging device 200 is being charged, the gradient threshold is a fixed value, such as 1V, and when the charging device 200 is being charged, the output voltage is the same as the real-time voltage.
  • the maximum value of the difference is 1V, so when the device 200 to be charged is inserted into the charging interface 110, there will be no surge current or ignition, and hot plugging during the charging process will not cause ignition; Understandably, the gradient threshold can also be other fixed values. Of course, the gradient threshold can also be changed.
  • the strategy for determining the output voltage based on the real-time voltage and gradient threshold can be selected as needed.
  • the output voltage can be the sum of the real-time voltage and the gradient threshold.
  • This strategy is relatively simple to implement; of course, according to the real-time voltage and Other strategies for determining the output voltage by the gradient threshold can also be adopted.
  • the method of determining the output voltage of the power output terminal 111 according to the real-time voltage and gradient threshold may be to adjust the output voltage of the power output 111 according to the real-time voltage and gradient threshold to determine the output voltage at the current moment.
  • the adjustment process can be based on the output voltage at the previous moment.
  • the output voltage at the current moment is different from the output voltage at the previous moment.
  • the real-time voltage at the current moment is the same as the real-time voltage at the previous moment, or is different Within a threshold, the output voltage at the current moment and the output voltage at the previous moment may also be the same.
  • the processor 120 determines the output voltage of the charging interface 110 according to the current real-time voltage and the gradient threshold when determining that the current real-time voltage satisfies a specific condition.
  • Specific conditions can be set as needed.
  • the processor 120 determines that the current real-time voltage is the sum of the last acquired real-time voltage and the gradient threshold, it determines the charging interface 110 according to the current real-time voltage and the gradient threshold.
  • the output voltage guarantees the most efficient charging process while ensuring safe charging.
  • the processor 120 determines the output voltage of the charging interface 110 according to the current real-time voltage and the gradient threshold when the time interval from the time when the current real-time voltage is determined to the time when the real-time voltage was last acquired is the first time interval.
  • the size of the first time interval can be set as required, for example, the first time interval can be 5 seconds or 10 seconds, and so on.
  • the processor 120 can adjust the output voltage of the charging interface every preset time interval according to the real-time voltage and the gradient threshold.
  • the output voltage of the charging interface can be adjusted in real time, or the output voltage of the charging interface can be adjusted at regular intervals. By adjusting the output voltage of the charging interface in this way, the effect of step-by-step adjustment of the output voltage can be achieved, and the phenomenon of ignition after power-on is avoided.
  • the processor 120 does not need to wait for the device to be charged 200 to be inserted into the charging interface 110 of the charging device 100, and can obtain the real-time voltage of the charging interface 110 of the charging device 100 in real time.
  • the voltage of the charging interface 110 is equivalent to the voltage of the device 200 to be charged. In this way, the voltage of the device to be charged 200 can be obtained in real time, and can play a role in detecting the in-position of the device to be charged 200.
  • the output voltage of the power supply output terminal 111 is determined according to the real-time voltage and the gradient threshold to charge the device 200 to be charged by the output voltage; the above steps are repeated until the output voltage increases to the full charging voltage of the device 200 to be charged.
  • the embodiment of the present application gradually increases the output voltage of the power output terminal 111 of the charging interface 110, and sets the gradient threshold so that the output voltage is always close to the real-time voltage of the power terminal 210 of the device to be charged 200, thereby realizing the soft start of the charging process This solves the problem of sparking caused by hot plugging during charging; at the same time, when the charging device 200 is inserted into the charging interface 110 of the charging device 100, the power output 111 of the charging interface 110 has no voltage, which solves the problem of the device to be charged.
  • the inrush current and ignition problems caused by the high voltage difference at the moment 200 is inserted into the charging device 100.
  • the processor 120 is configured to obtain the real-time voltage of the device 200 to be charged according to a preset periodic frequency, that is, the processor 120 periodically obtains the real-time voltage.
  • the size of the cycle frequency can be set according to needs, for example, the processor 120 obtains the real-time voltage every 5 seconds. In some embodiments, the processor 120 obtains the real-time voltage aperiodically.
  • the processor 120 is configured to obtain the real-time voltage of the power terminal 210 of the device to be charged 200 when it is detected that the device to be charged 200 is inserted into the charging interface 110 of the charging device 100.
  • the processor 120 may determine whether the device to be charged 200 is plugged into the charging interface 110 according to whether the communication link between the device to be charged 200 and the acting device is connected. When the communication link is connected, it is determined that the device 200 to be charged is inserted into the charging interface 110; when the communication link between the device 200 to be charged and the acting device is disconnected, it is determined that the device 200 to be charged is not inserted into the charging interface 110.
  • the processor 120 may determine whether the device 200 to be charged is inserted into the charging interface 110 by whether it obtains the real-time voltage. When the processor 120 obtains the real-time voltage, it determines that the device 200 to be charged is inserted into the charging interface. 110; When the processor 120 does not obtain the real-time voltage, it is determined that the device to be charged 200 is not plugged into the charging interface 110.
  • the charging device 100 obtains the real-time voltage by means of communication or hardware detection.
  • the charging device 100 obtains the real-time voltage by means of communication.
  • the charging interface 110 further includes a communication connection terminal 112.
  • the communication connection terminal 112 is used to connect with the communication terminal 220 of the device to be charged 200 to realize the communication between the processor 120 and the device to be charged 200.
  • the processor 120 obtains the real-time voltage of the device 200 to be charged through the communication connection terminal 112.
  • the processor 120 of this embodiment obtains the size of the real-time voltage by communicating with the device 200 to be charged.
  • the device 200 to be charged can obtain the size of the real-time voltage through hardware detection, and then transmit the obtained real-time voltage to the device through a communication link.
  • the processor 120 for example, the device to be charged 200 includes an ADC sampling module and a controller.
  • the ADC sampling module collects real-time voltage and transmits it to the controller.
  • the controller sequentially transmits the real-time voltage to the processor through the communication terminal 220 and the communication connection terminal 112. 120. It should be understood that the communication connection terminal can also be set independently of the charging interface 110.
  • the charging device 100 uses a hardware detection method to obtain real-time voltage. For example, refer to FIG. 3A.
  • the charging device 100 further includes a voltage detection circuit 130 that is electrically connected to the power output terminal 111.
  • the detection circuit is used to detect the real-time voltage of the power terminal 210 of the device 200 to be charged.
  • the voltage detection circuit 130 includes a first voltage divider circuit 131, and the input terminal of the first voltage divider circuit 131 is connected through the power output terminal 111 for processing.
  • the voltage dividing output terminal of the first voltage dividing circuit 131 is used to connect to the power terminal 210 of the device 200 to be charged.
  • the first voltage divider circuit 131 may include a first resistor R1 and a second resistor R2. The two resistors R2 are grounded and used to connect to the power terminal 210 of the device 200 to be charged.
  • the voltage across the second resistor R2 is the real-time voltage of the device 200 to be charged.
  • the first voltage divider circuit 131 may not be limited to the above-mentioned embodiment.
  • other resistors may be connected in series or parallel between the second resistor R2 and the ground terminal, or may be connected between the first resistor R1 and the power output terminal 111. Then connect other resistors in series or in parallel, or choose other circuits and devices that can divide the voltage.
  • the voltage detection circuit 130 includes a switch circuit 132, and the switch circuit 132 includes an input terminal, an output terminal, and a control terminal (not shown in the figure).
  • the input terminal is electrically connected to the power output terminal 111
  • the output terminal is used to connect to the power terminal 210 of the device to be charged 200
  • the control terminal is electrically connected to the processor 120.
  • the processor 120 can control the switch circuit 132 to turn off, so that the input terminal and the output terminal are disconnected, and the power output terminal 111 is disconnected from the device to be charged 200; the processor 120 can also control the switch circuit 132 to turn on , So that the input terminal and the output terminal are connected, and the output voltage of the power output terminal 111 is input to the device to be charged 200, so that the electrical connection between the power output terminal 111 and the device to be charged 200 is controlled through the switch circuit 132.
  • the switch circuit 132 includes a first MOS transistor Q1, a second MOS transistor Q2, and a third MOS transistor Q3.
  • the source of the first MOS transistor Q1 is connected to the source of the second MOS transistor Q2, the drain of the first MOS transistor Q1 is connected to the power output terminal 111, and the drain of the second MOS transistor Q2 is used to connect to the device 200 to be charged.
  • One end of the first resistor R1 is connected to the source of the first MOS transistor Q1 and the source of the second MOS transistor Q2 respectively, and the other end is connected to the drain of the third MOS transistor Q3 via the second resistor R2.
  • the drain of the third MOS transistor Q3 is also electrically connected to the gate of the first MOS transistor Q1 and the gate of the second MOS transistor Q2 through the second resistor R2, the source of the third MOS transistor Q3 is grounded, and the switch circuit 132
  • the control terminal is the gate of the third MOS transistor Q3.
  • the first MOS transistor Q1 and the second MOS transistor Q2 are PMOS transistors
  • the third MOS transistor Q3 is an NMOS transistor
  • the first MOS transistor Q1 and the second MOS transistor Q2 form a back-to-back PMOS transistor with low conduction loss.
  • the first MOS transistor Q1, the second MOS transistor Q2, and the third MOS transistor Q3 can also be a combination of other MOS transistor types.
  • the switch circuit 132 may also include a first capacitor C1.
  • One end of the first capacitor C1 is connected to the source of the first MOS transistor Q1 and the source of the second MOS transistor Q2, and the other end is connected to the first resistor.
  • the switch circuit 132 may further include a sixth resistor R6 and a seventh resistor R7.
  • the processor 120 is connected to the gate of the third MOS transistor Q3 through the sixth resistor R6, and the processor 120 sequentially passes through the sixth resistor R6 and the seventh resistor. Ground after R7.
  • the output voltage may be determined by the processor 120, or may be input from outside.
  • the output voltage is determined by the processor 120, that is, the processor 120 performs the step of determining the output voltage according to the real-time voltage and the gradient threshold.
  • the output voltage is externally input.
  • the output voltage can be input and output to the processor 120 in different ways.
  • the charging device 100 further includes an input module that is electrically connected to the processor 120, and the output voltage is generated by the user operating the input module.
  • the input module of this embodiment may include a control part and/or a touch screen, and the control part may include a voice control part and/or a key control part, etc., that is, input and output through voice input and/or key input and/or touch screen input, etc.
  • the voltage is applied to the processor 120.
  • the input module may also be another type of input module.
  • the charging device 100 may further include a display module for displaying the real-time voltage.
  • the real-time voltage is visually displayed through the display module, and the user can determine the output voltage according to the real-time voltage, thereby inputting the output voltage through the input module.
  • the display module may include, but is not limited to, a CRT (Cathode Ray Tube) display module, an LCD (liquid crystal) display module, an LED (light emitting diode) display module, or a PDP (Plasma Display Panel, plasma display) display module .
  • the processor 120 can communicate with an external device, and the output voltage is generated by the user operating the external device.
  • the external device may include a mobile terminal such as a mobile phone, a tablet computer, a smart bracelet, or a smart watch, or a fixed terminal such as a desktop computer; of course, the external device may also be other.
  • the processor 120 and the external device may communicate in a wired or wireless manner.
  • the user input and output voltage through the external device may include, but is not limited to, voice input, key input, or touch screen input.
  • the processor 120 is also used to send the real-time voltage to an external device to display the real-time voltage through the external device, and the real-time voltage can be visually displayed through the external device, and the user can determine the output voltage according to the real-time voltage, thereby inputting the output voltage through the external device .
  • the real-time voltage in the embodiment of the present application may include the initial voltage of the device 200 to be charged when the device to be charged is inserted into the charging interface 110, and the output voltage includes the initial output voltage of the charging interface 110 when the device to be charged 200 is inserted into the charging interface 110.
  • the initial output voltage is determined according to the initial voltage, so as to charge the charging device 200 through the initial output voltage. It should be noted that before the charging device 200 is inserted into the charging interface 110, the output voltage is 0. In this way, the moment the charging device 200 is inserted into the charging interface 110, since the charging interface 110 has no voltage output, the charging device 100 will not form a surge. Therefore, the communication link between the charging device 100 and the device to be charged 200 will not be infected, and there is no risk of breakdown of the charging MOS tube.
  • the charging device 100 may further include a voltage adjusting circuit 140 to adjust the voltage of the power output terminal 111 through the voltage adjusting circuit 140.
  • the processor 120 is electrically connected to the power output terminal 111 via the voltage regulation circuit 140, and the processor 120 is used to send a control signal to the voltage regulation circuit 140 to control the output voltage of the power output terminal 111.
  • the signal type of the control signal can be set as required.
  • the control signal is a PWM signal.
  • the duty ratio of the PWM signal in this embodiment is determined according to the magnitude of the output voltage, so that the duty ratio of the PWM signal is controlled to control the magnitude of the output voltage. It should be understood that the control signal may also be of other signal types.
  • the voltage regulating circuit 140 may include a comparator U1, a third resistor R3, a second capacitor C2, and a second voltage divider circuit 141.
  • the non-inverting input terminal of the comparator U1 is connected to the processor 120 via the third resistor R3, and is grounded via the second capacitor C2.
  • the reverse input terminal of the comparator U1 is connected to the voltage dividing output terminal of the voltage dividing circuit, and the voltage dividing circuit is used to divide the output voltage of the power supply output terminal 111.
  • the second voltage divider circuit 141 includes a fourth resistor R4 and a fifth resistor R5.
  • the processor 120 outputs a PWM signal, and the voltage Vset is formed by the RC filter circuit formed by the third resistor R3 and the second capacitor C2.
  • the charging device 100 can also adjust the voltage level of the output terminal through other structures or methods, and is not limited to the manner of adjusting the voltage level of the power output terminal 111 through the voltage regulation circuit 140 in the foregoing embodiment.
  • the charging device 100 of the embodiment of the present application can also heat the battery.
  • the charging device is provided with a battery compartment for accommodating batteries.
  • the charging device can perform power management for the battery, such as charging, discharging, or power balancing for multiple batteries.
  • the battery compartment can be provided with a heating device, such as a heating film.
  • the heating device is attached to the battery so as to heat the battery, so that the charging device can perform power management on the battery at a preset temperature.
  • the processor can control the input current to the heating device, so that the heating device generates heat after being energized.
  • the processor can control the magnitude of the current and/or the duty cycle of the energization, so as to adjust the heating of the heating film.
  • the processor can adjust the size of the current and/or the duty cycle of the energization according to the temperature of the battery, so as to adjust the heating of the heating film.
  • the battery compartment can be equipped with a temperature sensor to detect the battery temperature.
  • the processor can also communicate with the battery to obtain battery temperature information.
  • the heating device can be arranged on the battery. When the battery is electrically connected to the battery compartment, the processor and the battery can communicate to obtain the battery temperature.
  • the battery compartment and the heating device can be electrically connected, so as to output current for the heating device.
  • Such a design ensures that the charging device can control the battery temperature, such as maintaining a constant temperature, when the charging device performs power management on the battery, which is beneficial to the charging stability and safety of the battery.
  • the charging device is also provided with an in-position detection device to detect whether the battery is in place and avoid the risk of use.
  • the charging device is provided with an alarm device.
  • the charging device is abnormal, for example, the temperature of the charging device is higher than the alarm temperature threshold, the device of the charging device is abnormal, etc., and/or when the battery is abnormal, for example, the battery temperature is too high, the battery power cannot be increased while charging the battery, etc.
  • the charging device can send out a reminder through the alarm device to give an alarm. Ensure charging safety.
  • the charging device is provided with a heat dissipation device, and the heat dissipation device may be a fan, an air duct, a heat sink, etc., which are used to dissipate heat for the charging device and ensure the safety of charging.
  • the heat dissipation device may be a fan, an air duct, a heat sink, etc., which are used to dissipate heat for the charging device and ensure the safety of charging.
  • the charging device 100 in the embodiment of the present application may be a charging box or a charger, or may be other equipment capable of charging the device 200 to be charged.
  • the device 200 to be charged in the embodiment of the present application may be a battery, and optionally, there are multiple batteries.
  • the device 200 to be charged can also be other devices, such as a device with a battery, such as a mobile phone, a pan-tilt, a movable platform (such as a drone, an unmanned vehicle, a ground robot, etc.), or other devices with a battery.
  • the embodiment of the present application also provides a charging control method.
  • the execution subject of the charging control method may be a charging device, such as a processor of the charging device or other controllers provided on the charging device.
  • the electrical control method of the embodiment of the present application may include steps S501 to S503.
  • the output voltage of the charging interface is determined according to the real-time voltage and the gradient threshold, so as to charge the charging device through the output voltage;
  • steps S501 to S502 are repeated until the output voltage increases to the full charging voltage of the device to be charged.
  • the gradient threshold is a preset value.
  • the gradient threshold is determined according to the maximum power of the device to be charged.
  • the maximum power of the device to be charged is used to determine the maximum value of the difference between the output voltage and the real-time voltage when the device to be charged is in a safe charging state, and the gradient threshold is less than or equal to the maximum value.
  • obtaining the real-time voltage of the device to be charged includes: obtaining the real-time voltage of the device to be charged according to a preset periodic frequency.
  • the method before determining the output voltage of the charging interface according to the real-time voltage and the gradient threshold, the method further includes: determining that the current real-time voltage is the sum of the real-time voltage obtained last time and the gradient threshold.
  • acquiring the real-time voltage of the device to be charged includes: acquiring the real-time voltage of the device to be charged based on the communication link between the charging interface and the device to be charged; and/or acquiring the real-time voltage of the device to be charged based on hardware detection.
  • the output voltage is determined by the charging device.
  • the output voltage is input from the outside.
  • the output voltage is generated by a user operating an input module of the charging device.
  • the input module includes a control part and/or a touch screen.
  • the output voltage is generated by the user operating an external device.
  • the method before determining the output voltage of the charging interface according to the real-time voltage and the gradient threshold, the method further includes: outputting the real-time voltage for display.
  • the real-time voltage includes the initial voltage of the device to be charged when the device to be charged is inserted into the charging interface of the charging device.
  • the method further includes: detecting that the device to be charged is inserted into the charging interface of the charging device.
  • the device to be charged is a battery.
  • the charging device is a charging box.
  • the charging device is a charger.
  • the embodiment of the present application also provides another charging control method.
  • the execution subject of the charging control method may be a charging device, such as a processor of the charging device or other controllers provided on the charging device.
  • the electrical control method of the embodiment of the present application may include steps S601 to S604.
  • the output voltage of the charging interface is determined according to the real-time voltage and the gradient threshold, so as to charge the device to be charged through the output voltage until the output voltage is increased to the value to be charged.
  • the full charging voltage of the device is determined according to the real-time voltage and the gradient threshold, so as to charge the device to be charged through the output voltage until the output voltage is increased to the value to be charged. The full charging voltage of the device.
  • the determining the output voltage of the charging interface according to the real-time voltage and the gradient threshold includes: adjusting the output of the charging interface every preset time according to the real-time voltage and the gradient threshold Voltage.
  • the gradient threshold is a preset value.
  • the gradient threshold is determined according to the maximum power of the device to be charged.
  • the maximum power of the device to be charged is used to determine the maximum value of the difference between the output voltage and the real-time voltage when the device to be charged is in a safe charging state, and the gradient threshold is less than or equal to The maximum value.
  • the obtaining the real-time voltage of the device to be charged includes: obtaining the real-time voltage of the device to be charged according to a preset periodic frequency.
  • the method before determining the output voltage of the charging interface according to the real-time voltage and the gradient threshold, the method further includes: determining that the current real-time voltage is the sum of the real-time voltage acquired last time and the gradient threshold.
  • obtaining the initial voltage and/or real-time voltage of the device to be charged includes: obtaining the initial voltage and/or the device to be charged based on the communication link between the charging interface and the device to be charged Or real-time voltage; and/or acquire the initial voltage and/or real-time voltage of the device to be charged based on hardware detection.
  • the initial output voltage and/or the output voltage are determined by the charging device.
  • the initial output voltage and/or the output voltage are input from outside.
  • the initial output voltage and/or the output voltage are generated by a user operating an input module of the charging device.
  • the input module includes a control unit and/or a touch screen.
  • the initial output voltage and/or the output voltage are generated by a user operating an external device.
  • the method before acquiring the initial output voltage of the charging interface, the method further includes: outputting the initial voltage for display.
  • the method before the determining the output voltage of the charging interface according to the real-time voltage and the gradient threshold, the method further includes: outputting the real-time voltage for display.
  • the method further includes: detecting that the device to be charged is inserted into the charging interface of the charging device.
  • the device to be charged is a battery.
  • the charging device is a charging box.
  • the charging device is a charger.
  • the embodiment of the present application also provides a charging control device. Please refer to FIG. 7.
  • the charging control device of the embodiment of the present application may include a first storage device and one or more processors.
  • the processor may be a processor of the charging device, It may also be another controller provided on the charging device.
  • the storage device is used to store program instructions.
  • one or more processors call program instructions stored in the storage device, and when the program instructions are executed, the one or more processors are individually or collectively configured to Perform the following operations: when the device to be charged is inserted into the charging interface of the charging device, obtain the real-time voltage of the device to be charged; determine the output voltage of the charging interface according to the real-time voltage and gradient threshold to charge the device to be charged through the output voltage; repeat the above steps , Until the output voltage increases to the full charging voltage of the device to be charged.
  • the processor of this embodiment can implement the charging control method of the embodiment shown in FIG. 5 of the present application, and the charging control device of this embodiment can be described with reference to the charging control method of the foregoing embodiment.
  • one or more processors call program instructions stored in the storage device, and when the program instructions are executed, the one or more processors are individually or collectively configured for The following operations are implemented: when the device to be charged is inserted into the charging interface of the charging device, the initial voltage of the device to be charged is obtained; the initial output voltage of the charging interface is determined according to the initial voltage and the gradient threshold to pass the initial output The voltage charges the device to be charged; in the process of charging the device to be charged, the real-time voltage of the device to be charged is obtained; the output of the charging interface is determined according to the real-time voltage and the gradient threshold Voltage to charge the device to be charged through the output voltage until the output voltage increases to the full charging voltage of the device to be charged.
  • the processor of this embodiment can implement the charging control method of the embodiment shown in FIG. 6 of the present application, and the charging control device of this embodiment can be described with reference to the charging control method of the foregoing embodiment.
  • the processor may be a central processing unit (Central Processing Unit, CPU), other general-purpose processors, digital signal processors (Digital Signal Processors, DSP), application specific integrated circuits (ASICs), on-site Field-Programmable Gate Array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc.
  • the general-purpose processor may be a microprocessor or the processor may also be any conventional processor or the like.
  • the storage device stores a computer program of executable instructions for the charging control method.
  • the storage device may include at least one type of storage medium.
  • the storage medium includes a flash memory, a hard disk, a multimedia card, and a card-type memory (for example, SD or DX memory, etc.), random access memory (RAM), static random access memory (SRAM), read only memory (ROM), electrically erasable programmable read only memory (EEPROM), programmable read only memory (PROM) ), magnetic storage, magnetic disks, optical disks, etc.
  • the charging device may cooperate with a network storage device that performs the storage function of the memory through a network connection.
  • the memory may be an internal storage unit of the charging device, such as a hard disk or memory of the charging device.
  • the memory can also be an external storage device of the charging device, such as a plug-in hard disk equipped on the charging device, a smart memory card (Smart Media Card, SMC), a Secure Digital (SD) card, a flash memory card (Flash Card), etc. . Further, the memory may also include both an internal storage unit of the charging device and an external storage device. The memory is used to store computer programs and other programs and data required by the device. The memory can also be used to temporarily store data that has been output or will be output.
  • an external storage device of the charging device such as a plug-in hard disk equipped on the charging device, a smart memory card (Smart Media Card, SMC), a Secure Digital (SD) card, a flash memory card (Flash Card), etc.
  • the memory may also include both an internal storage unit of the charging device and an external storage device.
  • the memory is used to store computer programs and other programs and data required by the device.
  • the memory can also be used to temporarily store data that has been output or will be output.
  • an embodiment of the present application also provides a computer-readable storage medium on which a computer program is stored, and when the program is executed by a processor, the steps of the charging control method of the foregoing embodiment are implemented.
  • the computer-readable storage medium may be the internal storage unit of the charging device described in any of the foregoing embodiments, such as a hard disk or a memory.
  • the computer-readable storage medium may also be an external storage device of the charging device, such as a plug-in hard disk, a smart media card (SMC), an SD card, a flash memory card (Flash Card), etc. equipped on the device .
  • the computer-readable storage medium may also include both an internal storage unit of the charging device and an external storage device.
  • the computer-readable storage medium is used to store the computer program and other programs and data required by the charging device, and can also be used to temporarily store data that has been output or will be output.
  • the program can be stored in a computer readable storage medium. During execution, it may include the procedures of the above-mentioned method embodiments.
  • the storage medium may be a magnetic disk, an optical disc, a read-only memory (Read-Only Memory, ROM), or a random access memory (Random Access Memory, RAM), etc.

Abstract

L'invention concerne un dispositif de charge et un procédé et un dispositif de commande de charge. Le dispositif de charge (100) comprend une interface de charge (110) et un processeur (120), l'interface de charge comprenant une borne de sortie de puissance, la borne de sortie de puissance pouvant être électriquement connectée à la borne d'alimentation d'un dispositif à charger (200), et le processeur est électriquement connecté à l'interface de charge ; le processeur est utilisé pour acquérir la tension en temps réel de la borne d'alimentation du dispositif à charger lorsque ledit dispositif est inséré dans l'interface de charge du dispositif de charge ; la tension de sortie de la borne de sortie de puissance est déterminée en fonction de la tension en temps réel et d'un seuil de gradient, de manière à charger le dispositif à charger au moyen de la tension de sortie ; et les étapes précédentes sont répétées jusqu'à ce que la tension de sortie augmente jusqu'à la tension de charge complète du dispositif. La présente invention met en œuvre le démarrage progressif du processus de charge, résout le problème de l'allumage provoqué par un branchement à chaud pendant le processus de charge, et en même temps, résout le problème du courant de surtension et de l'allumage provoqué par une différence de tension élevée lorsque le dispositif à charger est inséré dans le dispositif de charge.
PCT/CN2020/081536 2020-03-27 2020-03-27 Dispositif de charge et procédé et dispositif de commande de charge WO2021189392A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/CN2020/081536 WO2021189392A1 (fr) 2020-03-27 2020-03-27 Dispositif de charge et procédé et dispositif de commande de charge
CN202080005076.7A CN112689935A (zh) 2020-03-27 2020-03-27 充电装置、充电控制方法和装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/081536 WO2021189392A1 (fr) 2020-03-27 2020-03-27 Dispositif de charge et procédé et dispositif de commande de charge

Publications (1)

Publication Number Publication Date
WO2021189392A1 true WO2021189392A1 (fr) 2021-09-30

Family

ID=75457687

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/081536 WO2021189392A1 (fr) 2020-03-27 2020-03-27 Dispositif de charge et procédé et dispositif de commande de charge

Country Status (2)

Country Link
CN (1) CN112689935A (fr)
WO (1) WO2021189392A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113561816A (zh) * 2021-08-03 2021-10-29 深圳市道通智能航空技术股份有限公司 一种充电平台及无人机
CN113746079B (zh) 2021-11-04 2022-06-14 深圳市爱图仕影像器材有限公司 热插拔电路、控制装置及设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104852418A (zh) * 2014-12-19 2015-08-19 北汽福田汽车股份有限公司 一种防止电池充电时过放的方法和系统
CN105098862A (zh) * 2014-05-19 2015-11-25 中兴通讯股份有限公司 一种充电控制方法、装置及终端
US20160301219A1 (en) * 2013-07-04 2016-10-13 Saft Method and system for managing the charging of a rechargeable battery comprising several branches of electrochemical elements connected in parallel
CN109606178A (zh) * 2018-12-26 2019-04-12 湖南秒冲新能源科技有限责任公司 智能充电方法、充电装置及计算机存储介质
CN110800184A (zh) * 2018-11-22 2020-02-14 深圳市大疆创新科技有限公司 充电器和充电管理方法
CN110832728A (zh) * 2018-07-20 2020-02-21 深圳市大疆创新科技有限公司 充放电装置、充电方法及手持云台组件

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160301219A1 (en) * 2013-07-04 2016-10-13 Saft Method and system for managing the charging of a rechargeable battery comprising several branches of electrochemical elements connected in parallel
CN105098862A (zh) * 2014-05-19 2015-11-25 中兴通讯股份有限公司 一种充电控制方法、装置及终端
CN104852418A (zh) * 2014-12-19 2015-08-19 北汽福田汽车股份有限公司 一种防止电池充电时过放的方法和系统
CN110832728A (zh) * 2018-07-20 2020-02-21 深圳市大疆创新科技有限公司 充放电装置、充电方法及手持云台组件
CN110800184A (zh) * 2018-11-22 2020-02-14 深圳市大疆创新科技有限公司 充电器和充电管理方法
CN109606178A (zh) * 2018-12-26 2019-04-12 湖南秒冲新能源科技有限责任公司 智能充电方法、充电装置及计算机存储介质

Also Published As

Publication number Publication date
CN112689935A (zh) 2021-04-20

Similar Documents

Publication Publication Date Title
US9502917B2 (en) Charging method of electronic cigarettes and electronic cigarette box
KR101502230B1 (ko) 배터리 충전 방법 및 배터리 충전 시스템
US20160359340A1 (en) Quick charging mobile terminal, method and system
US9979220B2 (en) Electronic device and method for controlling charging of the same
WO2021189392A1 (fr) Dispositif de charge et procédé et dispositif de commande de charge
WO2015172710A1 (fr) Circuit antidéflagrant, circuit de charge et circuit de protection de charge/décharge de batterie
US20130162196A1 (en) Charger
WO2021217315A1 (fr) Procédé de commande de charge, chargeur, système de charge et support de stockage
KR19980026944A (ko) 2차 배터리 충전 회로
JP2018504875A (ja) バッテリのサイクル寿命を延ばすための機構
JP2018121516A (ja) バッテリへの電力供給の制御
CN111740388A (zh) 电源保护电路、电子烟、电源保护方法及装置
WO2023284685A1 (fr) Circuit de commande de charge de batterie et dispositif électronique
US11329492B2 (en) Docking charing circuit and electronic device
WO2022194106A1 (fr) Circuit de charge et de décharge de deux batteries et procédé de commande, et dispositif électronique
US8972210B2 (en) Power management module and power supply apparatus
CN209860582U (zh) 电源保护电路、电子烟、电源保护装置
TW201712989A (zh) 充放電控制電路、充放電控制裝置以及電池裝置
US20130200840A1 (en) Battery managing system and method
JP3096535B2 (ja) 二次電池の充電方法及び充電装置
TWI748031B (zh) 電子設備及電源管控方法
WO2021203362A1 (fr) Procédé d'entretien de batterie, dispositif électronique, système d'entretien de batterie, et support de stockage lisible par ordinateur
CN111614138B (zh) 接口保护电路和电子设备
WO2018119798A1 (fr) Procédé de charge de batterie, système de charge, chargeur et batterie
EP3722824B1 (fr) Système et procédé de test d'appareil de charge

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20927851

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20927851

Country of ref document: EP

Kind code of ref document: A1