Transformerless Power Question - Electronic Circuits Projects Diagrams Free

William At MyBlueRoom · 12th May 2006, 03:41 PM

I've attached a diagram from Microchips application notes on an X10 controller. I'd like to use a 120v to 6.3v transformer with a full bridge & 7805 instead.
The question is they've use earth as an electrical ground with a PTC to neutral. Can I hook the transformer primary directly to hot & neutral?

**Nigel Goodwin** · 12th May 2006, 04:20 PM

Quote:

Originally Posted by William At MyBlueRoom

I've attached a diagram from Microchips application notes on an X10 controller. I'd like to use a 120v to 6.3v transformer with a full bridge & 7805 instead.
The question is they've use earth as an electrical ground with a PTC to neutral. Can I hook the transformer primary directly to hot & neutral?

Yes, assuming it's only feeding power to the circuit? - for X10 there needs to be some link back to the mains from the transmitter.

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