This article describes the simulation results of an astable multivibrator aimed to be fed by a photovoltaic cell, with the purpose of energy harvesting for electronic systems. The circuit was simulated using metal-oxide semiconductor field effect transistors (MOSFETs) and bipolar junction transistors. The use of half-wave and full-wave rectifiers for DC output voltage supply was also analyzed. The circuit reached a peak efficiency of 28 % when using MOSFETs PMDXB550UNE and half wave rectifier.

This work is part of a study regarding an issue found in the characterization of a microtransformer when different voltage values were applied to measure the inductance and resistance values of the windings. Under such conditions it was found a variation on those parameters, for both primary and secondary sides.