Autonomous battery equalization circuit

Details Autonomous battery equalization circuit Autonomous battery equalization circuit

H - Electricity

02

J

H02J 7/00 (2006.01)

Patent

CA 2309419

A battery equalization circuit for equalizing charge between at least first and second series connected batteries included a switching circuit and a resonant circuit. Each battery has a positive end and a negative end, where the positive end of the second battery is coupled to the negative end of the first battery at a common node. The switching circuit is connectable to (i) the positive end of the first battery at a positive node, and (ii) the negative end of the second battery at a negative node; and the resonant circuit is connectable between the switching circuit and the common node of the batteries, wherein the switching circuit is adapted to alternately couple the resonant circuit in parallel with the first and second batteries such that a DC current component flows between the first and second batteries through the resonant circuit as a function of a charge imbalance therebetween.

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