Accumulator power supply unit

An accumulator power supply unit comprising:

• plural accumulator blocks in at least one of a series connection and a series-parallel connection;
• plural transform charging circuits connected in parallel to the respective accumulator block,
• driving circuits driving the respective transform charging circuit in time division;
• a timing signal generating circuit sending a command for timing of a charge;
• a signal time division circuit transmitting a signal for timing of the charge to the accumulator blocks based on the timing signal;
• voltage detection circuits detecting the voltage of the respective accumulator block to be compared with a standard voltage for outputting a signal demanding the charge;
• and
• a gate circuit determining AND between time division charge timing signal and the charge demand signal from the voltage detection circuits, allowing only necessary time division charge timing signal to pass through, and outputting the drive signal to the drive circuit, wherein
• said accumulator power supply unit is chargeable and rechargeable by means of the respective accumulator block using said transformer circuits, and
• the respective accumulator block is charged in time division by the respective transform charging circuit.