SM expose'

[vince]

@poynt99

Yes, the bridge rectifier was connected to ground ( I used a separate ground from a copper water pipe., not the ground from the mains) and I used a clamp on meter to measure amps.

Regards
Vince

[poynt99]

Vince.

ok, but how did you determine that there was no current draw on the input?

with only milliamps used, your meter might not have enough resolution to see the draw. what you need is an inline shunt resistor to determine current.

[vince]

Am I missing something?

The meter reads 0, It always gives me some reading when a load is on the circuit.

[poynt99]

neutral eventually goes back to earth ground. check your AC voltage between ground and neutral at the line side. it is probably very close to 0VAC.

you should be able to think of the earth ground connection the same as connecting to the neutral line but through a large resistor.

you are therefore drawing a small current, and it will be registered in your house power meter.

[vince]

@poynt99

Can you please explain to me how to use the inline shunt resistor to measure the current. I have never done this before and would appreciate you direction.

Thanks
vince