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CN-121984185-A - Charging control device, method and system

CN121984185ACN 121984185 ACN121984185 ACN 121984185ACN-121984185-A

Abstract

The application provides a charging control device, a charging control method and a charging control system, wherein a control module of the device is used for controlling an inductive voltage converter to charge a battery by using a charging current with a first current value, the first current value is a fixed value, and the control module of the device is also used for controlling the inductive voltage converter to reduce the charging current from the first current value to a second current value under the condition that the voltage of the battery reaches a first voltage threshold value, wherein the inductive voltage converter is controlled to charge the battery by using a real-time charging current during the reduction of the charging current, the second current value is a fixed value, and the control module of the device is also used for charging the battery by using the charging current with the second current value after the charging current is reduced to the second current value. The embodiment of the application can improve the charging rate of the electronic equipment.

Inventors

  • CAI SIYUAN

Assignees

  • 荣耀终端股份有限公司

Dates

Publication Date
20260505
Application Date
20241030

Claims (14)

  1. 1. A charge control device, characterized by comprising: An inductance type voltage converter, which is used for obtaining the transmission voltage sent by a power supply, generating charging current based on the transmission voltage, and charging a battery of the electronic equipment by utilizing the charging current; The control module is used for controlling the inductive voltage converter to charge the battery by taking a charging current with a first current value as a fixed value, controlling the inductive voltage converter to reduce the charging current from the first current value to a second current value when the voltage of the battery reaches a first voltage threshold value, controlling the inductive voltage converter to charge the battery by using a real-time charging current during the reduction of the charging current, wherein the second current value is the fixed value, and charging the battery by using the charging current with the second current value after the charging current is reduced to the second current value.
  2. 2. The apparatus of claim 1, wherein the controller is configured to: the inductive voltage converter is controlled to reduce the charging current from a first current value to a second current value with the battery voltage of the battery controlled to a first voltage value.
  3. 3. The apparatus of claim 1, wherein the control module is to: and controlling the inductive voltage converter to reduce the charging current from the first current value to the second current value through multiple times of adjustment, wherein in each adjustment, the control module is used for controlling the inductive voltage converter to reduce the charging current by a preset current value.
  4. 4. The apparatus of claim 3, wherein the inductive voltage converter comprises a register for adjusting a charging current of the battery to a preset current value, the preset current value being a current value corresponding to a code value stored by the register; And, the control module is further configured to: acquiring a target adjustment value of the charging current adjusted in the previous time; Calculating the difference value between the target adjustment value and the preset current value to obtain the target current value adjusted each time; determining a code value corresponding to the target current value; Storing the code value to the register.
  5. 5. The apparatus of claim 3, wherein the charge control device further comprises a signal detection module, The control module is used for: in the process of each adjustment, acquiring the battery voltage of the battery through the signal detection module; Controlling the charging current to be reduced to the target current value adjusted each time when the battery voltage is smaller than the first voltage value, and controlling the inductive voltage converter to charge the battery by using real-time charging current in the process of reducing the charging current; and controlling the inductive voltage converter to charge the battery with the target current value after the charging current decreases to the target current value.
  6. 6. The apparatus of claim 1, wherein the control module is further configured to control the inductive voltage converter to reduce the charging current from a second current value to a third current value if the voltage of the battery reaches a second voltage threshold, wherein the inductive voltage converter is controlled to charge the battery with a real-time charging current during the reduction of the charging current, wherein the third current value is a fixed value, and wherein the battery is charged with the charging current of the third current value after the charging current is reduced to the third current value.
  7. 7. The apparatus of claim 1, wherein a maximum charging current of the electronic device is less than a preset current threshold.
  8. 8. The apparatus of claim 7, wherein the electronic device is a wearable device.
  9. 9. A method of charging control, the method being applied to an electronic device comprising an inductive voltage converter and a control module, the method comprising: The control module controls the inductive voltage converter to charge the battery by taking a charging current with a first current value as a fixed value; when the voltage of the battery reaches a first voltage threshold value, the control module controls the inductive voltage converter to reduce the charging current from a first current value to a second current value, wherein in the process of reducing the charging current, the inductive voltage converter is controlled to charge the battery by utilizing a real-time charging current, and the second current value is a fixed value; After the charging current decreases to the second current value, the control module charges the battery with the charging current of the second current value.
  10. 10. The method of claim 9, wherein the control module controlling the inductive voltage converter to reduce the charging current from a first current value to a second current value comprises: the control module controls the inductive voltage converter to reduce the charging current from a first current value to a second current value under control of a battery voltage of the battery to a first voltage value.
  11. 11. The method of claim 9, wherein the control module controlling the inductive voltage converter to reduce the charging current from a first current value to a second current value comprises: the control module controls the inductive voltage converter to reduce the charging current from a first current value to a second current value through a plurality of adjustments, wherein in each adjustment, the following steps are performed: The control module controls the inductive voltage converter to reduce the charging current by a preset current value.
  12. 12. The method of claim 11, wherein the control module controlling the inductive voltage converter to reduce the charging current by a preset current value comprises: The control module obtains a target adjustment value of the charging current adjusted in the previous time; the control module calculates the difference value between the target adjustment value and the preset current value to obtain the target current value adjusted each time; the control module determines a code value corresponding to the target current value; the control module stores the code value into a register of the inductive voltage converter, wherein the register is used for adjusting the charging current of the battery to a preset current value, and the preset current value is a current value corresponding to the code value stored in the register.
  13. 13. The method of claim 11, wherein the control module controlling the inductive voltage converter to reduce the charging current by a preset current value comprises: In the process of each adjustment, the control module acquires the battery voltage of the battery through the signal detection module; The control module controls the charging current to decrease to the target current value for each adjustment when the battery voltage is less than the first voltage threshold, wherein during the decrease of the charging current, the control module controls the inductive voltage converter to charge the battery with real-time charging current, and after the charging current decreases to the target current value, the control module controls the inductive voltage converter to charge the battery with the target current value.
  14. 14. A charging system, comprising: a battery; The charging control device comprises an inductive voltage converter and a control module; The inductive voltage converter is used for acquiring a power transmission voltage sent by a power supply, generating a charging current based on the power transmission voltage, and charging a battery of the electronic equipment by using the charging current; The control module is used for controlling the inductive voltage converter to charge the battery by taking a charging current with a first current value as a fixed value, controlling the inductive voltage converter to reduce the charging current from the first current value to a second current value when the voltage of the battery reaches a first voltage threshold value, controlling the inductive voltage converter to charge the battery by using a real-time charging current during the reduction of the charging current, wherein the second current value is the fixed value, and charging the battery by using the charging current with the second current value after the charging current is reduced to the second current value.

Description

Charging control device, method and system Technical Field The present application relates to the field of electronic devices, and in particular, to a charging control device, method, and system. Background With the development of electronic devices, users often want to be able to quickly charge electronic devices such as watches. However, in the existing solution, the charging rate of the electronic device is slow, so how to increase the charging rate of the electronic device is a technical problem to be solved. Disclosure of Invention In order to solve the technical problems, the application provides a charging control device, a charging control method and a charging control system, which can improve the charging speed of electronic equipment. In a first aspect, the application provides a charging control device, which comprises an inductance voltage converter, a control module and an inductance voltage converter, wherein the inductance voltage converter is used for acquiring a transmission voltage sent by a power supply, generating a charging current based on the transmission voltage, and charging a battery of an electronic device by using the charging current, the control module is used for controlling the inductance voltage converter to charge the battery by using the charging current with a first current value, the first current value is a fixed value, and controlling the inductance voltage converter to reduce the charging current from the first current value to a second current value when the voltage of the battery reaches a first voltage threshold, wherein the inductance voltage converter is controlled to charge the battery by using a real-time charging current during the reduction of the charging current, the second current value is a fixed value, and the charging current with a second current value is used for charging the battery after the charging current is reduced to the second current value. In the embodiment of the application, the charging current can be controlled to be gradually reduced between the constant current charging stage of the first current value and the constant current charging stage of the second current value, so that the increment of the charging time length caused by falling of the charging voltage is reduced as much as possible, the overall charging rate of the battery is improved, and the charging time of the battery is shortened. In some embodiments, the inductive voltage converter may be a BUCK module. Or it may also be implemented as a BOOST module, a BUCK-BOOST module. In some embodiments, the controller may be implemented as an MCU. In some embodiments, the first current value and the second current value may be set according to actual situations and specific situations. The first current value is greater than the second current value. Illustratively, the first current value may be 2C and the second current value may be 1.5C. In the embodiment of the present application, the magnitude of the current value may be represented by the charging rate C, or may be represented by the current unit ampere (a), which is not particularly limited. Alternatively, the first current value may be 1.5C, and the second current value may be 1C. In some embodiments, the duration of the decreasing is a first time period, the first time period being greater than 0. Optionally, at any two times in the first time period, the charging current at an earlier time is greater than or equal to the charging current at a later time. In some embodiments, the first voltage threshold may refer to a battery voltage that ends a constant current phase of the first current value, enters a constant current phase of the second current value, and may be 4.2V, for example. According to a first aspect, the controller is configured to control the inductive voltage converter to reduce the charging current from a first current value to a second current value in case the battery voltage of the battery is controlled to a first voltage value. Therefore, the constant voltage charging can be carried out on the battery, the falling back of the voltage of the battery is avoided, and the charging rate is further improved. The first voltage value may be the first voltage threshold described above, for example, may be 4.2V, or may be another value, which is not particularly limited. According to the first aspect, or any implementation manner of the first aspect, the control module is configured to control the inductive voltage converter to reduce the charging current from the first current value to the second current value through multiple adjustments, wherein in each adjustment, the control module is configured to control the inductive voltage converter to reduce the charging current by a preset current value. Therefore, the accurate adjustment of the charging current can be realized through multiple adjustments, and the charging time is further shortened. Illustratively, the preset current value may be an adjustment stri