Voltage-to-current converter

Posted on Oct 18, 2012

The current out is Iqut—Vin/R. For negative currents, a PNP can be used and, for better accuracy,-a Darlington pair can be substituted for the transistor. With careful design, this circuit can be used to control currents of many amps

Voltage-to-current converter
Click here to download the full size of the above Circuit.

Unity gain compensation is necessary.

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