| 摘要 |
Disclosed is driving circuit for AC contactor for driving a AC contactor, including a first switch connected in series with a winding of the AC contactor, a first diode reversely connected in parallel with the winding of the AC contactor for providing a discharging path for the winding, a DC startup holding unit having an output terminal connected in series with the first switch and a detection terminal connected to a first contact switch of the AC contactor. The DC startup holding unit is configured to selectively convert a DC driving voltage into a first DC voltage or a second DC voltage. When the AC contactor is not magnetized, the DC startup holding unit outputs the first DC voltage. When the AC contactor is magnetized, the DC startup holding unit outputs the second DC voltage.
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