EDN

10 – 100 Micro Amp Constant Current Source

This project enables the user to control the delivered current from 10micro Amps to 100 Micro Amps in increments of 5 Micro Amps, at upto 40V. This was built for a biomedical application. This project ...
EDN

A primer on current differencing buffered amplifiers

The current differencing buffered amplifier (CDBA) is a derivative of the current feedback operational amplifier (CFOA), originally proposed by Acar C and Ozoguz S. The main advantage of a CDBA is ...
Hackaday

constant current source

At first glance, [RobBest]’s constant current source looks old school. The box is somewhat old-fashioned, featuring switches and binding posts. Most importantly, there’s a large analog meter ...
Hackaday

current source

It isn’t unusual to expect a precisely regulated voltage in an electronic project, but what about times when you need a precise current? Over on EDN, prolific [Stephen Woodward] explains how to use a ...