I have a digital AC volt meter which can withstand 70v to 500v and it has two wires to the AC input. How can I turn on the led (volt meter)? Without using an AC input volt to turn it on. Is it possible to supply it with external DC power source and use the AC input to supply the meter with an AC volt.
My problem is I build AC volt supply which I use a potentiometer to adjust the voltage and the AC voltmeter is connected parallel to the AC output. The meter does not display or turn any volt when the volt is adjusted to 20 but turns on when the volt is at 80v
Please, if any of you have the circuit diagram kindly share it with me
My problem is I build AC volt supply which I use a potentiometer to adjust the voltage and the AC voltmeter is connected parallel to the AC output. The meter does not display or turn any volt when the volt is adjusted to 20 but turns on when the volt is at 80v
Please, if any of you have the circuit diagram kindly share it with me
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