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AC constant current source

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rauol

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ac constant current source

8)I have a 500 Hz AC Sine signal and i want it to have constant current AC source of 2 milli Amp. any suggestion .
 

How about using a voltage-to-current converter at that frequency?
 

use opa to force the voltage over a res is equal to the input signal. then use current mirror to produce the current you wanted!
 

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