Are you done for the night? Not if you’ve watched [0033mer]’s Simple Electronic Circuit Hacks video! You know just what to do. The ground pin of a LM7805 connects to the cathode of a TL431 ...
He saw a reference design in the LM7805 linear regulator datasheet which ... to crack open a Zalman module and find the exact same circuit inside. The controller in the background is an eBay ...
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