Capacitor module equalization control circuit and equalization control device provided with equalization control circuit

摘要

PPROBLEM TO BE SOLVED: To provide an equalization control circuit, along with an equalization control device with the same, in which a voltage of a capacitor module does not change greatly due to reduced power consumption at normal time of the equalization control circuit, for stableness in long term preservation. PSOLUTION: The equalization control circuit equalizes a module voltage of an energy storage device in which a plurality of capacitor modules containing at least a plurality of capacitor cells are connected. The equalization control circuit includes a DC/DC converter. When equalizing a module voltage of a plurality of capacitor modules, an internal loss of the DC/DC converter is utilized to step down the module voltage. PCOPYRIGHT: (C)2010,JPO&INPIT