USB charger - possible to flip live and neutral wires?

Thread Starter

raananh

Joined May 20, 2012
2
Hello,
I have a pcb of a small switching AC USB charger (from an HTC phone).

The PCB has L(live) and N(neutral) inputs. The Live input goes through a fuse and a resistor before it goes to the diode bridge (the Neutral goes straight to the diode bridge).

In this case, is it safe to flip the Live and the Neutral (e.g. connect it to a 2 prong EU plug )?

Originally it was connected to a 3-prong plug (although Ground was not connected).

Thanks,
raananh
 

inwo

Joined Nov 7, 2013
2,419
Voltage has little bearing on it.

If there are no exposed conducting screws or parts, (ie. double insulated") it should be fine.

However, your statement about an unconnected ground bothers me.
In that case, it may not have been safe before, and will be no better now.
 
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