I bought a solar christmas light LED with only 2 wires for the whole string but the controller can control 2 groups of led. So I hooked it up to a scope and saw that it uses PWM to control brightness and it reverses the polarity to control which string should light up. Can anyone point me to the rig…

Christmas light leds

Smajdalf November 27, 2021, 9:21am 2

H-bridge should be enough, no need for an additional MOSFET.

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