Temperature stable voltage controlled oscillator with super line

Details Temperature stable voltage controlled oscillator with super line Temperature stable voltage controlled oscillator with super line

1987-11-19

1989-03-14

LaRoche, Eugene R.

Oscillators

Solid state active element oscillator

Transistors

331144, 331176, H03K 3281

Patent

active

048127841

ABSTRACT:
A voltage controlled oscillator (VCO) having high temperature stability and wide voltage/frequency linearity is provided. The VCO comprises a multivibrator being switched by a bipolar type device, and temperature fluctuations of the bipolar type means are compensated by a FET current source coupled thereto. To provide a linear relationship of frequency vs. voltage over wide voltage range, the bipolar device is further regulated by a plurality of resistor and diode networks.

REFERENCES:
patent: 4492914 (1985-01-01), Hitomi
patent: 4621240 (1986-11-01), Aluord et al.
patent: 4717892 (1988-01-01), Hitomi
Hanus et al, Stable Low Frequencies with FET-Bipolar Pairs, Electronics, Jan. 9, 1967, p. 105.
Christiansen, Multivibrator Sensitivity Improved by MOS FET's, Electronics, Dec. 11, 1967, p. 96.
Young, "Constant-Density Recording Comes Alive with New Chips", Electronic Design, Nov. 13, 1986, pp. 141-144.

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