| 摘要 |
In order to decrease the size of an electric power conversion device for a PWM converter/inverter electric car sharing a PWM converter (7a,7b,7c,7d) and a PWM inverter (7e,7f,7g), a main circuit unit is constructed by combining at least one phase portion (7a) of the PWM converter and at least one phase portion (7e) of the PWM inverter, and each of the main circuit unit has a cooling device (18,19) common to the converter and inverter. <MATH> |
