voltage controlled current source

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wwfeda

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Hi,

How do you go about implementing a voltage controlled current source? The symbol for this in Pspice is G.

My inputs are differential (can be positive and negative) and I want the output current to be bi-directional. I cannot ground the inputs or load it.

Thanks.
 

do you want to implement a G on a board ?
if yes, you must search for OTA and G IC .
 

A differential-input amplifier + a voltage-to-current coverter can realize a vcvs. Both can be contructed with opamps.
 

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