Oscillator whose frequency is controllable by a current variatio

Details Oscillator whose frequency is controllable by a current variatio Oscillator whose frequency is controllable by a current variatio

1981-01-21

1983-12-06

Grimm, Siegfried H.

Oscillators

Solid state active element oscillator

Transistors

331177R, H03B 512

Patent

active

044196342

ABSTRACT:
A controllable LC oscillator has a constant inductance and a constant capacitance. In an oscillator circuit comprising a parallel resonant circuit, voltage limiting components are connected in parallel with the resonant circuit. By way of a controllable impressed current source, the starting point of voltage limitation is controlled and, hence, an alteration of the oscillator frequency is effected. In addition, a dual of the oscillator circuit is provided comprising a series resonant circuit.

REFERENCES:
patent: 3811097 (1974-05-01), Dijkmans
patent: 3815052 (1974-06-01), Watatani et al.
patent: 4061987 (1977-12-01), Nagahama
patent: 4071832 (1978-01-01), Cloke
R. R. Cordell, "Integrated Circuit Phase-Locked Loops", Conference Record 1976, Intern. Conf. on Communications, 12th IEEE Conference, Philadelphia, Jun. 14-16, 1976.

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