Vehicle Rotating Electric Machine

A power converting device comprising:

• a module unit having a power control circuit;
• and
• a control unit that controls the operation of the power control circuit,
• wherein the power control circuit is configured by connecting a plurality of the following series circuits in parallel, each of the series circuits includes a P-channel MOS semiconductor device disposed at a higher potential side and an N-channel MOS semiconductor device disposed at a lower potential side which are electrically connected in series, and
• the control unit comprises:
• a control circuit that outputs command signals for driving the P-channel MOS semiconductor devices and the N-channel MOS semiconductor devices respectively;
• and
• a driver circuit that outputs drive signals for driving the P-channel MOS semiconductor devices and the N-channel MOS semiconductor devices to those MOS semiconductor devices respectively upon receiving the command signals outputted from the control circuit,
• wherein the control circuit comprises a plurality of first electronic circuit elements and the driver circuit comprises a plurality of second electronic circuit elements,
• the plurality of first electronic circuit elements are integrated and mounted on a first substrate and the plurality of second electronic circuit elements are integrated and mounted on a second substrate.