| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a power converter capable of preventing common mode noise with a simple configuration, with no special additional circuit provided. <P>SOLUTION: The power converter includes an inverter 40 which contains a half bridge circuit consisting of a pair of switching elements by the amount equivalent to V, U, and W phases, with an intermediate point of a pair of switching elements as an output terminal of a three-phase AC voltage, and converts a DC voltage to a three-phase AC voltage by switching operation of the switching elements, and an inverter control part 70 which generates PWM signal that controls switching operation of the switching elements. The inverter control part 70, for the purpose of reducing common mode noise, switches the switching elements of the amount of two phases, among the switching elements of the amount of three phases, almost at the same time, into inverse polarity each other. <P>COPYRIGHT: (C)2012,JPO&INPIT |
