| 摘要 |
PROBLEM TO BE SOLVED: To reduce the costs of a charging device when an electricity storage device by an existing chemical cell and an electricity storage device by a new capacitor for electricity storage exist so as to be mixed by a method wherein DC electric power which is supplied from a constant-voltage charging device is converted into constant-current or constant-voltage DC electric power and an electricity storage part which is composed of the capacitor for electricity storage is changed. SOLUTION: An electricity storage part 11 is constituted in such a way that a plurality of electric double layer capacitors are series-parallel-connected. A voltage/current conversion part 12 is constituted of a constant-current DC/DC converter which contains a high-frequency inverter. Constant-voltage output DC electric power from a charging filling station for an electric vehicle on which an electricity storage device by various chemical cells is carried is supplied to charging input terminals I1, I2 of the voltage/current conversion part 12. The DC electric power is converted once into a single-phase alternating current by the ON/OFF operation of a switching transistor Q inside the high-frequency inverter, the alternating current is converted into a desired voltage by a transformer T, and the voltage is rectified by a rectifying circuit R so as to be supplied to the charging unit 11 via a resistance (r) for current monitoring. |
