Design of a Low-Frequency Oscillator with PTC Memristor and an Inductor.

An electronic oscillator circuit is designed by connecting an inductor in series with a locally-active PTC Memristor and a battery. The PTC Memristor is locally active on the negative resistance region of its DC - curve. A DC operating point is chosen on the locally-active region of the PTC Memristor and a small-signal equivalent circuit at is derived via Taylor series. The small-signal admittance of the composite one-port in Fig. 1 is derived using the small-signal equivalent circuit at , in series with an inductor whose value is chosen such that at some . The sinusoidal oscillation computed numerically from this circuit is shown to emerge from a supercritical Hopf bifurcation. [ABSTRACT FROM AUTHOR]