Triangular wave generating circuits usually use integrated circuits or basic electronic components to generate waveforms. One common method is to use a combination of comparators and integrators, such as feeding a triangular wave signal into the integrator, and then using the comparator and feedback circuit to generate a triangular wave shape.
When the voltage output by the integrator reaches a threshold set by the comparator, the comparator switches the output and produces a feedback when the integrator restarts. By repeating this process over and over again, a stable triangular wave shape can be produced. This method can be widely used in electronic music synthesizers, signal generators and other equipment.
The waveform generated by the triangular wave generating circuit is mainly generated by the capacitor charging and discharging in the circuit.