I have a load activated by a button. I need it to gradually draw voltage and current as if it is being activated by a slider or knob. What simple, cheap device will do that for me up to 12v 3.5amps?
Look for a feature called "soft start", you fin it on a lot of power regulators and switches.
Put a serial inductor there.
Can the load be PWM'd ? What is the load?
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