Derive Simple High-Current Source from Lab Supply

Abstract: Comprising a standard Force-Sense lab power supply, an additional power supply for the ICs, and a separate control voltage, this adjustable current source provides a 1-to-1 ratio of control voltage to load current (1A/V).
Maxim > App Notes > Amplifier and Comparator Circuits General Engineering Topics
Keywords: force-sense power supply, high-side current monitor, op amps, control voltage Aug 03, 2010

APPLICATION NOTE 4485
Derive Simple High-Current Source from Lab Supply


Abstract:Comprising a standard Force-Sense lab power supply, an additional power supply for the ICs, and a separate control
voltage, this adjustable current source provides a 1-to-1 ratio of control voltage to load current (1A/V).

A similar version of this article appeared in the October 16, 2008 issue of EDN magazine.

When electronic testing requires an adjustable current source, you must often build that piece of test equipment in the lab. You can
easily make such a current