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I have a quick question about a circuit I want to build, namely a low voltage AC power source.

I attached a picture of the schematic.

Are there any safety concerns that I might have to pay attention to that are not addressed in the schematic? It is a pretty simple circuit, but it is my first time working with AC, so I wanted to be safe.

schematic of the circuit

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  • \$\begingroup\$ You would be better off buying a UL listed, commercial off-the-shelf transformer assembly, which simply provides split phase low voltage AC output. That removes essentially all the hazard. \$\endgroup\$ Commented Apr 2, 2023 at 20:43

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  1. The primary side (230VAC) needs a fuse. I think the datasheet for the VTX-146-015-106 says there's a fusible link in the primary side to protect against overheating, but I'd still put a fuse in.
  2. Those TVS diodes will make a mess of your AC. You do not need them.
  3. You seem to want a switchable 6VAC/12VAC output. Use the following schematic:

schematic

simulate this circuit – Schematic created using CircuitLab

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  • \$\begingroup\$ Thank you very much for the advice! \$\endgroup\$ Commented Apr 1, 2023 at 18:59

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