Posted on Feb 5, 2014

A wide-range voltmeter circuit. This inverting amplifier has a gain varying from -30 for the 10-mV full-scale range to -0. 003 for the 100-V full-scale range. Diodes D1 and D2 provide com-plete amplifier protection for input overvoltages as high as 500V on the 10-mV range, but if over-voltages of this magnitude are expected under continuous operati

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

on, the power rating of RV should be adjusted accordingly

Leave Comment

characters left:

New Circuits



Popular Circuits

Zener tester
infrared transmitters using lm3909
battery backup circuit
Current Mirror for LEDs