| 摘要 |
PROBLEM TO BE SOLVED: To provide a power conversion device that appropriately avoids increases in constitution and cost in avoiding a malfunction of a circuit board 20 due to switching noise.SOLUTION: A smoothing capacitor 62, a positive side busbar 60p and a negative side busbar 60n are arranged in positions on the side of a first surface of the circuit board 20 which are included in the circuit board 20 in a front view of a plate surface of the circuit board 20. Electronic components including a microcomputer 94, and a differential wiring pattern 130, a single wiring pattern 132 and a current wiring pattern 134 are disposed on a second surface of the circuit board 20. A ground pattern is formed as an inner layer of the circuit board 20 so as to intervene between the electronic components, the differential wiring pattern 130, the single wiring pattern 132 and the current wiring pattern 134 on one hand, and the smoothing capacitor 62, the positive side busbar 60p and the negative side busbar 60n on the other hand. |
