| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an electric circuit for a motor-driven vehicle in which a common mode current is reduced. <P>SOLUTION: The electric circuit includes a motor 16 that drives the vehicle, an inverter circuit 14 that converts dc voltage into ac voltage by switching control to output the ac voltage to the motor 16, and a ground conductor 24 provided separately from a current path included in the inverter circuit 14. The electric circuit also includes a load-sharing switching circuit 22 having a switching unit connected to a dc voltage applying terminal of the inverter circuit 14 and a common mode ground circuit connected between the switching unit and the ground conductor 24. The switching unit switches a state of connection between the dc voltage applying terminal and the common mode ground circuit according to a timing of switching control by the inverter circuit 14. <P>COPYRIGHT: (C)2009,JPO&INPIT |
