Negative resistance oscillator suited for partial integration

Details Negative resistance oscillator suited for partial integration Negative resistance oscillator suited for partial integration

1981-03-10

1983-03-29

Grimm, Siegfried H.

Oscillators

Solid state active element oscillator

Transistors

331117R, H03B 706

Patent

active

043785310

ABSTRACT:
A novel negative resistance oscillator is disclosed for partial integration. The oscillator has a tank circuit and a load, which are non-integrated, and active circuitry, which is integrated. The active circuit consists of a current "source" and two current "sinks", arranged to provide a negative resistance. The oscillator, which is designed to drive an erase head in a tape recorder, as a part of a tape recorder integrated circuit, requires only a single additional pin, has a controlled peak current range, a large dc voltage swing for a given dc supply potential, and an efficient dc to ac current conversion ratio.

REFERENCES:
patent: 3986152 (1976-10-01), Howell
patent: 4230999 (1980-10-01), Ahmed
Greben, A. B., "Monolithic Waveform Generation", IEEE Spectrum, pp. 34-40, Apr. 1972, (reprinted in Analog Integrated Circuit Design, pp. 378-384, A. B. Grebene, 1972).

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