It’s Got Coils, so It’s A Transformer Linear power supplies with a mains transformer are a surprisingly rare sight now. Dilshan Jayakody, CC BY-SA 2.0. How does a transformer work?

HF radios often use toroidal transformers and winding them is a rite of passage for many RF hackers. [David Casler, KE0OG] received a question about how they work and answered it in a recent video … ...

These work perfectly as a power supply splitter/active ground driver. Simply connect the plus of the wall transformer to pin 6, the minus to pin 4 and use pin 5 for the circuit ground. Leave all the ...

The transformer and output inductor give 1500 V of isolation. With the configuration shown, the supply provides +12 V at 3 A and −12 V at 1 A. Windings can also be configured for a ±2-A, or a ...