BATTERY SYSTEM Russian patent published in 2013 - IPC H02J7/00 H02J7/10 

FIELD: electricity.

SUBSTANCE: device contains two or more accumulators connected in-series and comprising a battery; each accumulator has outputs for charging and discharging the accumulator, a controllable charging source connected to the positive and negative terminals of the battery, equalisation modules based on transistors of DC-DC voltage converters and voltage sensors which connected to outputs of each accumulator of the battery; windings of equalising transformer connected to equalisation modules; charging control apparatus, outputs of voltage sensors are connected to charging control apparatus and outputs of the latter are connected to the controllable charging source and to equalisation modules; at that equalisation modules have high double-side conductivity when switched on and operate in the mode of synchronous voltage detection at windings of the equalising transformer; in this connection each equalisation modules can operate in the mode of energy transmission from the equalising transformer to the accumulator connected in parallel to it if voltage of this accumulator is less than voltage of remaining accumulators in the battery and in the mode of energy transmission to remaining accumulators from this accumulator if voltage drop of this accumulator is more than an average value of voltage for the remaining accumulators.

EFFECT: reducing energy losses while rectifying the charging current and simplifying design due to exclusion of a part of elements from the battery system.

2 cl, 4 dwg