Triangular wave generation circuit with the adjustable amplitude

Published:2011/8/29 2:09:00 Author:TaoXi | Keyword: Triangular wave, generation circuit, adjustable amplitude | From:SeekIC

The triangular wave generation circuit with the amplitude that can be adjusted accurately is as shown in the figure, the accuracy of the amplitude is +/-0.01V, if you add the +UREF and -UREF DC voltage, the amplitude of the triangular wave can be the positive and negative peak values. The circuit is composed of the integrator which is composed of A1, the positive and negative peak values judgment comparators A2 and A3. The U1 outputs the triangular wave, the U2 outputs the square wave. You can change the frequency of the output signal by changing the value of R1. The symmetrical characteristic of the waveform can be adjusted. At this time, you can connect the potentiometer RP1 with the positive and negative power supplies (figure 6-29(b)).



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