Patent ID: 7531987

Claim:
A capacitor control system comprising: a capacitor unit having a plurality of capacitors connected in a series connection, said capacitor unit being divided into capacitor blocks formed of a specific number of the plurality of capacitors connected in a series connection; a plurality of detectors provided in the capacitor blocks; and a microcomputer configured to be connected to said plurality of detectors by way of an analog switch for processing information obtained from said plurality of detectors, wherein said plurality of detectors select arbitrary capacitors in the capacitor blocks and a voltage of the capacitors charges a condenser provided in said plurality of detectors, the condenser is isolated from a respective capacitor block, and said plurality of detectors determine the voltage of the isolated condenser, and said plurality of detectors detect voltages of the capacitors such that each of said plurality of detectors detect in each capacitor block connected, after once detecting all capacitors in a first detection, selectively the capacitors showing an abnormal voltage value in the first detection in a second detection.