Rongge

The circuit provides accurate full wave rectification. The output impedance is low for both input polarities, and the errors are small at all signal levels. Note that the output will not sink heavy current, except a small amount through the 10K resistors. Therefore, the load applied should be referenced to ground or a negative voltage. Reversal of all diode polarities will reverse the polarity of the output Since the outputs of the amplifiers must slew through two diode drops when the input polarity changes, 741 type devices give 5% distortion at about 300 Hz. Precision full wave Rectifier Circuit Diagram Sourced By: http://circuitsstream.blogspot.com/2013/07/precision-full-wave-rectifier-circuit.html

Build a simple Sine wave-to-square wave converter Circuit Diagram. Many signals are digitally generated or transmitted as square waves. It is often desirable to convert these signals into sine. In this Sine wave-to-square wave converter Circuit Diagram The sine input is ac coupled by capacitor C; Rl and R2 bias the input midway between Vn and Vp, the input threshold voltages to provide a square wave at the output.   Sine wave-to-square wave converter Circuit Diagram