Analysis and Synthesis of Waveform Generators in the Phase Plane

A new class of waveform generators can be analyzed and synthesized using the phase plane. The technique is based upon generating closed paths in the phase plane such that the variable values as a function of time are the waveforms desired. Very accurate square, triangle, sawtooth, and pulse waveforms are generated using these concepts. Circuit implementations are proposed. Standard IC's containing four operational amplifiers allow inexpensive construction of these versatile oscillators, such that the component cost is competitive with common generators. Experimental results were very good.