Transformerless Power Supply of 1A at 5Volts!

[shottootto]

It is not AC but rectified AC to result in DC. Also note the Zener that drops the voltage.

[Ioannis]

Please review the circuit more carefully. The circuit works from zero up to about 39 volts. After that point it cuts off.

It works very good from 230 VAC.

Ioannis

[jmgelba]

Be interesting to see what happens from 90Vac to 304Vac.

[Demon]

Agreed, I'd be interested in 110VAC range.

Robert

Edit: Did you guys check Melanie's design?

http://www.picbasic.co.uk/forum/show...7531#post17531

[Ioannis]

Be interesting to see what happens from 90Vac to 304Vac.

As I said it does not do anything above 39 or so volts. So where is the problem?

After the sine wave has reached the 38-39 volts the circuits is not powered any more from the power line.

Ioannis