Oscillators – Ring oscillators
Patent
1998-09-18
2000-11-28
Kinkead, Arnold
Oscillators
Ring oscillators
331177R, 331175, 327105, H03B 100
Patent
active
061540986
ABSTRACT:
The present invention includes a voltage control circuit having at least one voltage-controlled oscillator and at least one voltage controller connected to the voltage controlled oscillator. The voltage controller has at least one voltage input for supplying an input voltage to the voltage controller, a control signal input for supplying a control signal to the voltage controller, and a voltage output connected to the voltage controlled oscillator for supplying an output voltage thereto. The output voltage controls the delay of the voltage controller oscillator by supplying the control signal to the voltage controller. The voltage-controlled oscillator may include a multiple inverted stage ring oscillator and the voltage controller may include at least one PMOS T-gate circuit having a fixed positive voltage input, a positive adjustable control voltage input, and a control signal input; and at least one NMOS T-gate circuit having a fixed negative voltage input, a negative adjustable control voltage input, and a control signal input. Applications of the voltage-controlled oscillator include frequency synthesizers comprising frequency oscillator circuitry, digital signal processors, and cellular phones comprising digital processing circuitry.
REFERENCES:
patent: 4859970 (1989-08-01), Matsuo et al.
patent: 5438301 (1995-08-01), Havens et al.
patent: 5559476 (1996-09-01), Zhang et al.
Glenn Kimberly E
Kinkead Arnold
Lucent Technologies - Inc.
LandOfFree
Gain-adjustable voltage-controlled oscillator does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Gain-adjustable voltage-controlled oscillator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gain-adjustable voltage-controlled oscillator will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1729852