The topic of P.S. direcly from the mains is very dangerous and I do not recommed to do so.
But there are cases that this is unavoidable.
Current designs have the dis-advatage that are of low current.
The attached one is a clever design from Elektor and gives about 1A at 5Volts.
I repeat that all parts are live and should never be touched!
Ioannis
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