Patent 7531987 was granted and assigned to Panasonic on May, 2009 by the United States Patent and Trademark Office.
Capacitor unit and capacitor control system used in high output power source are reduced in size. A capacitor unit controlled by the capacitor control system is divided into capacitor blocks formed of a specified number of capacitors connected in series, and each capacitor block is provided with a detector. Plural detectors are connected to a microcomputer by way of an analog switch.