TRIANGLE_AND_SQUARE_WAVE_GENERATOR

Published:2009/6/17 3:12:00 Author:May | From:SeekIC

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 A1, and R1/R2 sets the triangle amplitude. The frequency of oscillation in either case is approximately 1/0.69RC.The square wave will maintain 50% duty cycle-even 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 high frequencies. Because the amplifier runs open-loop, corapensation is not necessary. The triangle-generating amplifier should be a compensated type. A dual op amp, such as the MC1458, can be used for most applications.



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