hoss3inf
Newbie level 3
I was thinking how can i make a soft starter (and not speed controller) for a single phase induction motor, like in refrigerator compressors. does anybody know where should i start?
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Refrigerators use a NTC resistor, its high in value when cold , so the current is limited until it gets hot. Problem with thermal devices is that if the mains in interrupted for a second or so, because the device is hot, there is no current limiting when the fridge restarts.
Frank