| 摘要 |
PROBLEM TO BE SOLVED: To enable constant current charging from an AC power supply by using coils of a motor and an inverter with a smaller number of additional components without changing a connection condition between the coils of the motor, and a connection condition of the inverter and the coils of the motor.SOLUTION: In a charging circuit for a vehicle, a battery 17 and a traveling inverter 15 are connected to one single-phase output 13A of a Scott transformer 13 through a rectifying circuit 14, and the battery 17 and a cargo handling inverter 25 are connected to another single-phase output 13B through a rectifying circuit 24. Each connection point of a set of switching elements Q1, Q2, Q11, Q12 of the traveling inverter 15 and the cargo handling inverter 25 are connected to terminals 18b, 19b through wirings 20, respectively. A controller 21 ON/OFF-controls each of a set of switching elements Q3, Q4, Q13, Q14, and sustains the other two sets of switching elements in off states respectively during charging. |
