Circuit with voltage clamping for bias transistor to allow...

Details Circuit with voltage clamping for bias transistor to allow... Circuit with voltage clamping for bias transistor to allow...

2005-06-28

2005-06-28

Kinkead, Arnold (Department: 2817)

Oscillators

Ring oscillators

C331S034000, C331S185000, C327S276000, C327S281000

Reexamination Certificate

active

06911871

ABSTRACT:
A ring oscillator stage includes two differential transistor pairs configured to add an adjustable amount of delay to a differential input signal. Each differential pair is biased with a bias current transistor; the bias current transistor is “protected” by a voltage-clamping transistor that limits the drain voltage of the bias current transistor. The voltage-clamping transistors enable use of a power supply voltage (VDD) that would otherwise exceed the reliability breakdown voltage limit of the bias current transistors.

REFERENCES:
patent: 6222423 (2001-04-01), Sudjian
patent: 6275117 (2001-08-01), Abugharbieh et al.

Affiliated with

Also associated with

Rating

Circuit with voltage clamping for bias transistor to allow... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Circuit with voltage clamping for bias transistor to allow..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Circuit with voltage clamping for bias transistor to allow... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3462154