Posted on Sep 8, 2012

Single programming resistor Rp provides an output-current range of about six decades.-Note that this resistor`s TC is also a potential source of error; it dissipates 125 mW when JliN ~ 5 V. The maximum deviation is typically 50 nA or 0.0002% of full scale.

Click here to download the full size of the above Circuit.

This voltage-controlled current source uses optocoupler IC2 to eliminate an error found in more conventional circuits and which is caused by the output transistor"s base current.

Leave Comment

characters left:

New Circuits



Popular Circuits

Cuckoo-song Generator
Insect Repellant
Photocell Amplifier
Hi-Low level comparator
Zero voltage switch temperature control
Arduino Midi
Boba Fett project movement
simple tiny door guard
Mcu Reset And Oscillator Circuits Applicationnote
2-wire LCD interface using PIC16CF84
The Colpitts Oscillator