Voltage control oscillator for a semiconductor device

Oscillators – Ring oscillators

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

331 34, 331177R, H03B 524

Patent

active

060114428

ABSTRACT:
This invention provides a voltage control oscillator that can reduce swing width and more precisely can control a period of the oscillator by applying a back bias voltage to a back bias terminal of a transistor so that an output pulse of the oscillator is controlled. The present invention comprises a plurality of inverters which are connected to each other in the form of a chain, each inverter having a pull up device and a pull down device; a first control block connected to a bulk of each pull up device to supply a desired voltage to said bulk so that threshold voltage of each pull up device is controlled; and a second control block connected to a bulk of each pull down device to supply a desired voltage to said bulk of each pull down device so that threshold voltage of each pull down device is controlled. The present invention can precisely control the oscillator since variation width of the period is small and can minimize a circuit without addition of a buffer since swing width is constant.

REFERENCES:
patent: 4142114 (1979-02-01), Green
patent: 4628214 (1986-12-01), Leuschner
patent: 5434820 (1995-07-01), Kim
patent: 5767726 (1998-06-01), Wang

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Voltage control oscillator for a semiconductor device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Voltage control oscillator for a semiconductor device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Voltage control oscillator for a semiconductor device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-1075725

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.