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How do I to put an mA meter and V meter to my 12v 1.7A regulated power supply with loads that start at 1mA up to 15mA? Answered

I have aregulated power supply 120VAC to 12VDC & 1.7A to operate small coreless motors that start rotating at 1-3mA operating up to 13mA and need to add a mAmeter, trim pot, rheostat and fuse. How?

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SirDeClare
SirDeClare

5 years ago

I know that the amp meter goes in series and voltmeter in parallel but, does the amp meter need a shunt? Schematic for placement of these elements would be a bid help to this electically-inept.

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steveastrouk
steveastrouk

Answer 5 years ago

It depends on the range of the meters you use. Yes, shunts are often needed, but it depends on the exact range of currents you want to measure, and you will need to fuse the meter, or risk blowing it up in a short circuit condition.

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-max-
-max-

5 years ago

amp meter goes in series with the load, voltmeter goes in parelell with the load.