AC current generator.

[tkvenki]

HI all.

I need a circuit for generating AC current.
The maximum current is 40mA.
Accuracy is of utmost importance.
I will be using this to simulate energy meter.

I would also like to know about any similar products available in the market.

 

[akg]

u havn't specified the max voltage ..
how about a commertial sine wave signal generator coupled with a power amp?

 

[audioguru]

u havn't specified the max voltage ..
how about a commertial sine wave signal generator coupled with a power amp?

I think his "AC current" is electrical mains current.
I think his "energy meter" is really a mains power meter.
Isn't your electrical mains at 240VAC over there?
Then your power amplifier must have an output of 7200W RMS into 8 ohms. That's a lot more than just 40mA.

Wouldn't a little 10W 1:1 mains isolation transformer do the trick?

 

[Russlk]

240 volts and 6K ohms will produce 40 mA.

 

[Nigel Goodwin]

It's all very well guessing, but the original post was so vague as to make it completely useless!.