A simple quadrature oscillator for generating triangular waves and square waves

A new method for the relatively cheap generation of triangular waves and square waves is described. The present instrument is versatile in generating pairs of waves: two waves for each one of the waveforms. Each one of the waves is 90° out of phase with respect to the other wave of the same form. This quadrature operation is similar to that of common sinewave oscillators, but it is not usually known for the generation of square waves and triangular waves. The new system has been realized successfully and electronically by employing only one integrated circuit.