DEVICE FOR CONTROLLING ACCUMULATOR CHARGING Russian patent published in 2007 - IPC H02J7/00 H02J9/06 

FIELD: electric engineering, possible use in secondary power sources for automatic charging of accumulators in various automatic devices, namely, for fire alarm systems.

SUBSTANCE: device contains impulse generator, discharge chain circuit, indication circuit, outputs for connection of accumulator, key element, control circuit and source of direct stabilized voltage, to output of which connected electrically in parallel are impulse generator, first input of key element and also through smoothing filter - load, connected in parallel through discharge chain circuit are indication circuit and outputs of accumulator. New are introduced current limiting element, discharge key element, electrically connected to output of impulse generator, and launch circuit, input of which is electrically connected to outputs of discharge key element and control circuit, and output - to second input of key element, electrically connected by output to input of current-limiting element, another output of which is connected to inputs of control circuit, indication circuit and positive output of accumulator.

EFFECT: increased reliability of switching of load power to power from accumulator (reserve) with visual indication of accumulator presence modes, correctness of its connection, and also network presence control during provision of automatic charging of accumulator or its disabling in case of deep discharge, failure, breakage or change of poles.

2 dwg