Charging voltage control method and device, equipment and storage medium
A charging voltage and control method technology, which is applied in battery circuit devices, circuit devices, secondary battery charging/discharging, etc., to achieve the effects of reducing power loss, accelerating charging speed, and solving slow charging speed
Active Publication Date: 2022-06-10
SHENZHEN LOWPOWER SEMICON CO LTD
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Problems solved by technology
[0003] The embodiment of this application provides a charging voltage control method, device, equipment and storage medium, which can solve the problem of slow charging speed of the equipment to be charged in the switching charging system
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[0048] Specifically, after the model and peripheral circuit of the switch-type charging chip are determined, when the charging voltage provided by the PD adapter for the switch-type charging chip changes, the current provided by the PD adapter for the switch-type charging chip also changes, that is, each The two voltages correspond to a second current. When the second voltage changes, the second current changes correspondingly, and the corresponding second current under each second voltage is obtained through the switch-type charging chip.
[0049] S20222. Bring the first voltage, the first current, the second voltage and the second current into the first calculation formula to obtain the working efficiency.
[0050] Exemplarily, the first calculation formula is:
[0051] Exemplary, such as Figure 5 As shown, step S202 includes step S2024.
[0052] S2024. Determine an efficiency function in the database according to the first voltage and the first current.
[0053] Specif...
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The invention is suitable for the technical field of fast charging, and provides a charging voltage control method and device, equipment and a storage medium. The charging voltage control method comprises the following steps: acquiring a first voltage and a first current; the first voltage is the voltage of a battery in the to-be-charged equipment, and the first current is the current provided for the battery by a switch type charging chip in the to-be-charged equipment; determining an efficiency function of the switch type charging chip according to the first voltage and the first current; determining a target voltage according to the efficiency function; the target voltage is the optimal charging voltage provided by the PD adapter for the switch type charging chip; sending a first instruction according to the target voltage; the first instruction is used for indicating the PD adapter to provide the target voltage for the switch type charging chip. According to the charging voltage control method provided by the embodiment of the invention, the problem of low charging speed of the to-be-charged equipment in a switch type charging system can be solved.
Description
technical field [0001] The present application belongs to the technical field of fast charging, and in particular relates to a charging voltage control method, device, equipment and storage medium. Background technique [0002] At present, a typical switch-type charging system consists of an adapter and a device to be charged, wherein the adapter adopts a PD (Power Delivery, power supply) adapter, and the device to be charged includes a switch-type charging chip, a PD protocol chip and a battery. At present, the charging scheme of the equipment to be charged in the switch-type charging system adopts the fixed voltage mode of PD, specifically, the fixed voltage output by the PD adapter is reduced to near the battery voltage based on the switch-type charging chip, and the battery is charged. However, the switch-type charging chip will generate power loss during the charging process, resulting in increased power loss and a large temperature rise of the device to be charged. Thi...
Claims
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IPC IPC(8): H02J7/00H01M10/44
CPCH02J7/007182H02J7/00714H01M10/44Y02E60/10
Inventor 唐鹏戴兴科
Owner SHENZHEN LOWPOWER SEMICON CO LTD