Active battery pack equalization charging system and charging method
A technology for equalizing charging and battery packs, which is applied in the direction of secondary battery charging/discharging, charge equalizing circuits, battery circuit devices, etc., can solve the problems of wasting electric energy and reducing manufacturing costs, and achieves reducing manufacturing costs, improving efficiency, and simplifying the structure. Effect
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[0044] A method for equalizing charging of active battery packs, comprising the following steps:
[0045] S1. The balance controller collects the voltage information of each battery module in the battery pack;
[0046] S2. According to the collected voltage information, the controller judges the battery modules that need balanced charging;
[0047] S3. The controller sends an instruction to the drive switch assembly, and the drive switch assembly turns on the power supply and the transformer;
[0048] S4. The power supply charges the battery modules requiring balanced charging through the transformer.
[0049] When the active battery pack equalization charging method is adopted figure 2 In the active battery pack balancing charging system shown; in step S3, the steps for the controller to send instructions to the drive switch assembly are:
[0050] S301. The controller sends two PWM waveform signals A1 and A2 to the PMOS transistor and the NMOS transistor respectively;
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