| 摘要 |
<p>The invention provides a car power supply device and an elevator power supply system, so as to improve charging/discharging properties of batteries by enhancing the degree of versatility of batteries in cars of elevators. The car power supply device comprises a power receiving part in a car of an elevator, a first power storage apparatus requiring a first charging time, and a second power storage apparatus requiring a second charging time which his longer than the first charging time. A charging/discharging control circuit converts voltage and frequency of power received by the power receiving part into voltage and frequency corresponding to the first and second power storage apparatuses. A power storage capacity detection circuit monitors the power storage state of the first and second power storage apparatuses. A power converter converts power supplied by the first and second power storage apparatuses into power with voltage and frequency corresponding to equipments in the car.</p> |
