Optocoupler extends high-side current sensor to 1 kV


Posted on May 23, 2012

The task of sensing dc current at high voltage is often problematic. Most high-side current-sensing ICs available off the shelf are good only to 30 or 40V. Combining an optocoupler with such an IC yields a sensing circuit in which the only limitation of the high-side voltage is the optocoupler`s standoff voltage (Figure 1).






Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Audio Stereo Mixer circuit
Vacuum fluorescent display
Simple JFET Preamp
VW CAR PASSAT ENGINE CONTROL AND AUTOMATIC SOLENOID ELECTRICAL WIRING CIRCUIT
traffic simple
Electromagnetic field sensor circuit
Preheat Ballast Schematic
Digitally controlled threshold detector
An estimate of the load current monitor circuit rod



Top