... there is something like "chopper-driving", where you have a capacitor as "power-bank" for the switching current, which is loaded with a small current, which won't overheat the driver, if switched.
So while OFF, the capacitor is loaded to full capacity, which gives enough current to activate the solenoid when the driver is switched ON ... then only the limited current is drawn, which is strong enough to "hold" the solenoid, but not enough to overheat ...
Viktor
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Aufruf zum Projekt "Müll-freie Meere" - [
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Call for the project "garbage-free seas" - [
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