Triangle- And Square-Wave Generator Circuit


Posted on Nov 18, 2012    4138

The circuit will generate precision triangle and square waves. The output amplitude of the square wave is set by the output swing of op amp Al, xndRl/R2 sets the triangle amplitude. The frequency of oscillation in either case is approximately l/0.69ftC. The square wave will maintain 50% duty cycleeven if the amplitude of the oscillation is not symmetrical. The use of a fast op amp in this circuit will allow good square waves to be generated to quite liigh frequencies.


Triangle- And Square-Wave Generator Circuit
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Because the amplifier runs open-loop, compensation is not necessary. The triangle- generating amplifier should be a compensated type. A dual op amp, such as the MCI458, can be used for most applications.




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