Charge & Discharge Current Monitor (CB5406E)

This circuit is from a 2005 Linear Technology manual. The circuit is powered by 3.3 V but can monitor circuits from 3.3 to 60 V.

Opto-Coupler Tester (NI0023E)
A complete test for opto-couplers can be made using the circuit Bellow. The function generator...
Ultrasonic Oscillator (NI008E)
The 50 kHz signal generated by this circuit is applied to a low impedance inductive transducer. A...
Magnetic Pickup Amplifier (CB4950E)
This circuit was found in a 1980s documentation. The operational amplifier is of a common type at the...