Integrated circuit for transducers

Details Integrated circuit for transducers Integrated circuit for transducers

1992-04-13

1993-02-23

Pascal, Robert J.

Oscillators

Solid state active element oscillator

Transistors

331183, H03L 500

Patent

active

051893800

ABSTRACT:
The present invention comprises an oscillator including a transformer having a first winding with a power feed to the center tap. A first pair of transistors in a push-pull configuration are connected at the emitter electrodes across the second winding of the transformer. A center tap on the second winding is provided for a negative polarity power return. The base electrodes of the transistors are commonly connected to receive a control current and the collector electrodes of the transistors are connected across a first winding of the transformer. A capacitive element is connected across the first winding to create a tuned circuit within an oscillator.

REFERENCES:
patent: 3763444 (1973-10-01), Tavis
patent: 3837227 (1974-09-01), Tavis
patent: 4947139 (1990-08-01), Tavis

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