![]() ![]() In practical circuits, resistance R4 is connected across C to avoid the saturation problem at low frequencies as in the case of practical integrator as shown in the Figure below This is because the reactance of capacitor decreases at high frequencies and increases at low frequencies. This is illustrated in Figure below.Īlthough the amplitude of the square wave is constant (± Vsat), the amplitude of the triangular wave decreases with an increase in its frequency, and vice versa. ![]() The frequency of the triangular wave is same as that of square wave. When V’ is low at -Vsat, it forces a constant current (- Vsat /R3) through C (right to left) to drive Vo positive, linearly. This forces a constant current (+Vsat/R3) through C (left to right) to drive Vo negative linearly. This is achieved by connecting integrator circuit at the output of square wave generator as shown in the figure above.Īssume that V’ is high at +Vsat. Triangular wave is generated by alternatively charging and discharging a capacitor with a constant current. A Triangular Wave Generator Using Op amp can be formed by simply connecting an integrator to the square wave generator. ![]()
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