Pulse generator using bi-lateral solid state breakover device energized by an ac signal

Abstract

Abstract A pulse generator operated directly from an alternating voltage source and including, in series, a bi-lateral negative resistance element, an inductance, and a capacitor. The increasing alternating voltage builds up across the bi-lateral element until the latter reaches its breakover point and transfers a charge to the capacitor. The bi-lateral element then becomes non-conductive again, and voltage again starts to build up across it. This cycle of operation continues as long as the alternating voltage builds up and then reverses as the alternating voltage starts to decrease. The inductance can be a transformer primary winding, and the secondary can actuate a relay contact section or be connected to a rectifier to generate a direct voltage with a much higher ripple frequency than the voltage applied to the series circuit. The generator may also be used to produce an audio or ultrasonic tone by connecting the voice coil of a loudspeaker or an ultrasonic generator as the inductance coil.

Inventors

• 👤 M Joyce

Bibliographic Details