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CN-122001057-A - Charging system and charging control method

CN122001057ACN 122001057 ACN122001057 ACN 122001057ACN-122001057-A

Abstract

The application discloses a charging system and a charging control method, and relates to the technical field of charging. The charging system includes a first electronic device and a second electronic device. The first electronic device includes a first switch, a first charging chip, a first battery, a second switch, and a load. The second electronic device comprises a third switch, a fourth switch, a direct current voltage regulating module and a second battery. In the charging system, the second battery in the second electronic device can supply power to the load of the first electronic device through the fourth switch and the second switch. Because the current of the load of the first electronic equipment is smaller and is generally about tens of milliamperes when the load of the first electronic equipment works normally, the discharging current of the second electronic equipment can be reduced under the condition, so that the second electronic equipment can perform deep discharging, and the cruising of the first electronic equipment is further improved.

Inventors

  • Xue Ruipu
  • WANG XIAOYANG
  • ZHANG CHENGXU
  • ZHOU HAIBIN
  • WANG YABIAO

Assignees

  • 荣耀终端股份有限公司

Dates

Publication Date
20260508
Application Date
20241030

Claims (20)

  1. 1. The charging system is characterized by comprising first electronic equipment and second electronic equipment, wherein the first electronic equipment comprises a first switch, a first charging chip, a first battery, a second switch and a load, and the second electronic equipment comprises a third switch, a fourth switch, a direct current voltage regulation module and a second battery; the first end of the first switch is connected with the first end of the third switch, and the second end of the first switch is connected with the input end of the first charging chip; the first end of the second switch is connected with the first end of the fourth switch, and the second end of the second switch and the output end of the first charging chip are connected with the first battery and the load; the second end of the third switch is connected with the first end of the direct current voltage regulating module, and the second end of the direct current voltage regulating module and the second end of the fourth switch are connected with the second battery.
  2. 2. The charging system of claim 1, wherein the second electronic device further comprises a fifth switch and a second charging chip; The first end of the fifth switch is connected with the first end of the third switch, the second end of the fifth switch is connected with the input end of the second charging chip, and the output end of the second charging chip is connected with the second battery.
  3. 3. The charging system of claim 2, wherein the first electronic device further comprises a first processing module, a first output of the first processing module being coupled to the control terminal of the first switch, a second output of the first processing module being coupled to the control terminal of the second switch; The second electronic device further comprises a second processing module, a first output end of the second processing module is connected with the control end of the fourth switch, and a second output end of the second processing module is connected with the control end of the fifth switch; The communication end of the first processing module is connected with the communication end of the second processing module; The first processing module is used for transmitting a first communication signal to the second processing module and controlling the first switch and the second switch to be turned on if a first control instruction is received, the first control instruction is used for indicating a charger to charge the first battery through the first charging chip and the second charging chip, and the first communication signal is used for indicating the fourth switch and the fifth switch to be turned on; And the second processing module is used for controlling the fourth switch and the fifth switch to be conducted if the first communication signal is received.
  4. 4. The charging system according to any one of claims 1 to 3, wherein the first electronic device further comprises a first charge and discharge management module and a first processing module; The first end of the first charge-discharge management module is connected with the output end of the first charge chip, the second end of the second switch and the load, and the second end of the first charge-discharge management module is connected with the first battery; the third output end of the first processing module is connected with the control end of the first charge-discharge management module, and the first processing module is used for adjusting the impedance of the first charge-discharge management module when the second switch and the fourth switch are turned on so that the first battery and the second battery supply power to the load together.
  5. 5. The charging system according to any one of claims 1 to 4, wherein the second electronic device further comprises a second charge and discharge management module and a second processing module; The first end of the second charge and discharge management module is connected with the second end of the direct current voltage regulation module and the second end of the second switch, and the second end of the second charge and discharge management module is connected with the second battery; And the third output end of the second processing module is connected with the control end of the second charge-discharge management module, and the second processing module is used for adjusting the impedance of the second charge-discharge management module when the second switch and the fourth switch are turned on so that the first battery and the second battery supply power to the load together.
  6. 6. A charging system according to any one of claims 1 to 3, wherein the first electronic device further comprises a first processing module, a second output of the first processing module being connected to a control terminal of the second switch; The second electronic device further comprises a second processing module, a first output end of the second processing module is connected with a control end of the fourth switch, and a communication end of the second processing module is connected with a communication end of the first processing module; The second processing module is used for transmitting a second communication signal to the first processing module if the voltage of the first battery and the voltage of the second battery meet preset conditions, wherein the second communication signal is used for indicating that the second battery can supply power to the load through the fourth switch and the second switch; the first processing module is used for transmitting a third communication signal to the second processing module and controlling the second switch to be turned on if the second communication signal is received, and the third communication signal is used for indicating the second processing module to control the fourth switch to be turned on.
  7. 7. The charging system of claim 6, wherein the predetermined condition is: U 2 ≤U 1 +I×R, wherein U 2 is the voltage of the second battery, U 1 is the voltage of the first battery, I is the minimum current of the load when the load works normally, and R is the equivalent impedance between the second battery and the load.
  8. 8. The charging system according to any one of claims 1 to 7, wherein the first electronic device further comprises a first charging port, a first end of the first switch is connected to a power supply end of the first charging port, and a first end of the second switch is connected to a preset end of the first charging port; the first end of the third switch is connected with the power end of the second charging port, and the first end of the fourth switch is connected with the preset end of the second charging port; When the first charging port is connected with the second charging port, the power end of the first charging port is connected with the power end of the second charging port, and the preset end of the first charging port is connected with the preset end of the second charging port.
  9. 9. A charging control method applied to a first electronic device in a charging system according to any one of claims 1 to 8, the method comprising: If the first electronic equipment is determined to be connected with the second electronic equipment and the first electronic equipment is not connected with a charger, determining whether a preset power supply mode is started, wherein the preset power supply mode is that the second battery supplies power to the load through the fourth switch and the second switch; and if the preset power supply mode is determined to be started, transmitting a third communication signal to the second electronic equipment, and controlling the second switch to be turned on, wherein the third communication signal is used for indicating the fourth switch to be turned on.
  10. 10. The method of claim 9, wherein transmitting a third communication signal to the second electronic device if the preset power mode is determined to be turned on, and controlling the second switch to be turned on, further comprises: And if a second control instruction is received or the charging current of the first battery is detected, the second switch is controlled to be turned off, the first switch is controlled to be turned on, a fourth communication signal is transmitted to the second electronic equipment, the second control instruction is used for indicating to turn off the preset power supply mode, and the fourth communication signal is used for indicating the second battery to supply power to the first battery and the load through the direct current voltage regulation module, the third switch and the first switch.
  11. 11. The method of claim 9 or 10, wherein if it is determined that the first electronic device is connected to the second electronic device and the first electronic device is not connected to a charger, determining whether to turn on a preset power mode further comprises: and if the preset power supply mode is not started, controlling the first switch to be conducted, and transmitting a fourth communication signal to the second electronic equipment, wherein the fourth communication signal is used for indicating the second battery to supply power to the first battery and the load through the direct current voltage regulation module, the third switch and the first switch.
  12. 12. The method of any one of claims 9 to 11, wherein the second electronic device further comprises a fifth switch and a second charging chip, wherein a first end of the fifth switch is connected to a first end of the third switch, a second end of the fifth switch is connected to an input end of the second charging chip, and an output end of the second charging chip is connected to the second battery; The method further comprises the steps of: if the first electronic equipment is connected with the second electronic equipment and the charger is determined to be connected, determining whether the first battery needs to be charged or not; If the first battery is determined to be charged, and a first control instruction is received, a first communication signal is transmitted to the second electronic device, the first switch and the second switch are controlled to be turned on, the first control instruction is used for indicating the charger to charge the first battery through the first charging chip and the second charging chip, and the first communication signal is used for indicating the fourth switch and the fifth switch to be turned on.
  13. 13. The method of claim 12, wherein if it is determined that the first battery needs to be charged and a first control command is received, transmitting a first communication signal to the second electronic device and controlling the first switch and the second switch to be turned on, further comprising: If a third control instruction is received, or if the voltage of the first battery is greater than a first preset voltage, or if the temperature of the first battery is greater than a preset temperature, the second switch is controlled to be turned off, and the third control instruction is used for indicating the charger to stop charging the first battery through the second charging chip; And transmitting a fifth communication signal to the second electronic device, wherein the fifth communication signal is used for indicating the fourth switch and the fifth switch to be turned off.
  14. 14. The method of claim 13, wherein after transmitting a fifth communication signal to the second electronic device, further comprising: If the second battery is determined to be charged, determining the charging power of the charger for charging the second battery according to the charging power of the charger for charging the first battery; And transmitting a sixth communication signal to the second electronic device, wherein the sixth communication signal is used for indicating the charging power of the charger for charging the second battery.
  15. 15. The method of claim 14, wherein after the transmitting the sixth communication signal to the second electronic device, further comprising: and if the first battery and the second battery are full, transmitting a seventh communication signal to the charger, wherein the seventh communication signal is used for indicating the charger to stop outputting or indicating the charger to restore the default outputting.
  16. 16. The method of any of claims 12 to 15, wherein after determining that the first electronic device is connected to the second electronic device and to a charger, determining whether the first battery needs to be charged further comprises: and if the first battery is determined not to need to be charged, determining whether the first battery needs to be charged or not every preset time length.
  17. 17. A charging control method applied to the second electronic device in the charging system according to any one of claims 1 to 8, characterized by comprising: Determining whether a third communication signal is received, wherein the third communication signal is transmitted to the second electronic device when the first electronic device determines to start a preset power supply mode, and the preset power supply mode is that the second battery supplies power to the load through the fourth switch and the second switch; And if the third communication signal is received, controlling the fourth switch to be turned on so that the second battery supplies power to the load through the fourth switch and the second switch.
  18. 18. The method of claim 17, wherein the controlling the fourth switch to turn on if the third communication signal is received further comprises: Acquiring the voltage of the first battery and the voltage of the second battery; And if the voltage of the first battery and the voltage of the second battery meet the preset conditions, transmitting a second communication signal to the first electronic equipment, wherein the second communication signal is used for indicating that the second battery can supply power to the load through the fourth switch and the second switch.
  19. 19. The method of claim 17 or 18, wherein the second electronic device further comprises a fifth switch and a second charging chip, wherein a first end of the fifth switch is connected to a first end of the third switch, a second end of the fifth switch is connected to an input of the second charging chip, and an output of the second charging chip is connected to the second battery; The method comprises the following steps: Determining whether a first communication signal is received, wherein the first communication signal is transmitted to the second electronic device when the first electronic device receives a first control instruction, the first control instruction is used for indicating a charger to charge the first battery through the first charging chip and the second charging chip, and the first communication signal is used for indicating the fourth switch and the fifth switch to be conducted; and if the first communication signal is received, controlling the fourth switch and the fifth switch to be conducted.
  20. 20. The method of claim 19, wherein after controlling the fourth switch and the fifth switch to be turned on if the first communication signal is received, further comprising: And if a fifth communication signal is received, the fourth switch and the fifth switch are controlled to be turned off, the fifth communication signal is used for indicating that the first electronic equipment receives a third control instruction or the voltage of the first battery is larger than a first preset voltage, and the third control instruction is used for indicating the charger to stop charging the first battery through the second charging chip.

Description

Charging system and charging control method Technical Field The present application relates to the field of charging technologies, and in particular, to a charging system and a charging control method. Background With the development of science and technology, electronic devices such as mobile phones, tablet computers, notebook computers and the like have become one of the indispensable tools in daily life and work of people. Generally, an electronic device may supplement electric energy through accessories with a battery, such as a mobile power supply, so as to improve the endurance of the electronic device to a certain extent. The electronic devices such as a mobile phone, a tablet computer, and a notebook computer are referred to herein as a first electronic device, and the accessory with a battery is referred to herein as a second electronic device. In the related art, in order to enable the second electronic device to charge the first electronic device at a faster speed, the second electronic device generally has a larger discharge rate. However, the larger the discharge rate of the second electronic device, the less electric quantity can be discharged, which is unfavorable for improving the endurance of the first electronic device. Disclosure of Invention The embodiment of the application provides a charging system and a charging control method, wherein in the charging system, a battery of a second electronic device can directly supply power to a load of a first electronic device, so that the discharging current of the second electronic device can be reduced, the second electronic device can perform deep discharging, and the continuous voyage of the first electronic device is facilitated to be further improved. The technical scheme is as follows: in a first aspect, a charging system is provided. The charging system comprises a first electronic device and a second electronic device. The first electronic device may be a terminal device such as a mobile phone, tablet computer, notebook computer, etc. The second electronic device may be a mobile power supply, a back-clamping battery, or other accessory with a battery that can supplement the first electronic device with electrical energy. The first electronic device includes a first switch, a first charging chip, a first battery, a second switch, and a load. The second electronic device comprises a third switch, a fourth switch, a direct current voltage regulating module and a second battery. Wherein the first end of the first switch is connected with the first end of the third switch. The second end of the first switch is connected with the input end of the first charging chip. The first end of the second switch is connected with the first end of the fourth switch. The second end of the second switch and the output end of the first charging chip are connected with the first battery and the load. The second end of the third switch is connected with the first end of the direct current voltage regulating module. The second end of the direct current voltage regulating module and the second end of the fourth switch are connected with the second battery. When the first switch and the third switch are turned on and the second switch and the fourth switch are turned off, the second battery in the second electronic device can charge the first battery of the first electronic device through the direct current voltage regulating module, the third switch, the first switch and the first charging chip and supply power to the load of the first electronic device. In this case, the second electronic device can charge the first electronic device with a larger discharge magnification, thereby realizing rapid charging of the first electronic device. When the second switch and the fourth switch are turned on and the first switch and the third switch are turned off, the second battery in the second electronic device can supply power to the load of the first electronic device through the fourth switch and the second switch. Because the current of the load of the first electronic equipment is smaller and is generally about tens of milliamperes when the load of the first electronic equipment works normally, the discharging current of the second electronic equipment can be reduced under the condition, so that the second electronic equipment can perform deep discharging, and the cruising of the first electronic equipment is further improved. In some embodiments, the second electronic device further comprises a fifth switch and a second charging chip. The first end of the fifth switch is connected with the first end of the third switch. The second end of the fifth switch is connected with the input end of the second charging chip. The output end of the second charging chip is connected with the second battery. When the first electronic equipment and the second electronic equipment are also connected with the charger, and the fifth switch, the fourth switch, the first switch and the s