Method and device for automatically equalizing voltages of power battery groups
A power battery pack and automatic equalization technology, which is applied to battery circuit devices, circuit devices, collectors, etc., can solve the problems of small number of series connections, large resistance heat generation, and many components, so as to achieve a good balance effect and prolong the service life , the effect of simple circuit
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[0023] As shown in Figure 1, the balance controller 100 is composed of a microprocessor and a logic control circuit, and is used to detect the voltage at both ends of each single battery in the battery pack connected in series in real time, and the microprocessor divides the single batteries connected in series into two groups , and sort the single batteries in the two battery groups according to the detected voltage values.
[0024] Both ends of each single battery B1, B2...Bn-1, Bn in the series battery pack are connected to the balance controller 100; each single battery B1, B2...Bn-1 , Bn are respectively connected with MOS transistors M1, M2...Mn-1, Mn;
[0025] The output control terminals of the balance controller 100 are respectively connected to MOS transistors M1, M2... Mn-1, Mn.
[0026] The balance controller 100 is also connected to the control MOS transistor Mn+1.
[0027] Each single battery is connected with the charging and discharging circuit, and connected...
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