| 摘要 |
A power storage device includes an alternating current (AC) power source (112), a field effect transistor (FET) (106), a capacitor bank (111), a direct current (DC) fixing heater (105), a step-down chopper circuit (104), and an output control unit (103). The FET (106) switches between a first path and a second path to supply power from the AC power source (112) in combination with a diode (108) and an IGBT (110). The capacitor bank (111) is arranged on the first path, and includes capacitor cells. The DC fixing heater (105) is arranged on the second path. The step-down chopper circuit (104) is arranged on the first path, and changes a voltage value of power supplied from the AC power source (112). The output control unit (103) controls, when power is supplied to the first path, the step-down chopper circuit (104) to change the voltage value based on a charging voltage of the capacitor cells. |
