Triangle Wave and Square Wave Generator

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This is a simple circuit diagram of triangle wave and square wave generator.



The circuit is designed based on a common 1458 dual op-amp that can be used from very low frequencies to about 10 Khz. The time interval for one half cycle is about R*C and the outputs will supply about 10 milliamps of current. Triangle amplitude can be altered by adjusting the 47K resistor, and waveform offset can be removed by adding a capacitor in series with the output.

source of Triangle Wave and Square Wave Generator circuit:
http://www.high-voltage-lab.com/211/triangle-squarewave-generator