Invention Grant

Electric device
Abstract:
An electric device is provided which can reduce risk of malfunction. This electric device is provided with a motor (31), an inverter circuit (30) which has switching elements (S1-S6) and which drives the motor (31), and a charge pump circuit (22) which generates the drive voltage of the switching elements (S1-S6). A discharge circuit (a discharge resistor R and a capacitor C1) is provided between a power line to which a drive voltage (VM) of the motor (31) is supplied and an output terminal (a VGT terminal) of the charge pump circuit (22). Energy of the surge voltage (Vs) generated in a parasitic inductance (Ls) when the switching elements (S4-S6) are turned off is absorbed by the discharge circuit (the discharge resistor R and the capacitor C1).
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