| 摘要 |
PROBLEM TO BE SOLVED: To provide the structure of an electric circuit which can suppress the superimposition of noise generated by the flow of a current to different wiring. SOLUTION: The structure of the electric circuit is characterized by comprising: a power module containing a switching element such as a transistor; a smoothing capacitor in which charging and discharging are performed between the power module and itself; a bus bar 14 and a bus bar 15 which are arranged in parallel with each other as current passages between the power module and the smoothing capacitor, and in which currents opposite to each other in direction simultaneously flow; and wiring 16 which is arranged at the circumference of the bus bar 14 and the bus and 15, and electrically connects a control board A and a control board B. COPYRIGHT: (C)2008,JPO&INPIT
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