Pulse controlled impedance compensated output buffer

Details Pulse controlled impedance compensated output buffer Pulse controlled impedance compensated output buffer

1995-03-14

1996-06-18

Hudspeth, David R.

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

Output switching noise reduction

326 30, H03K 1716

Patent

active

055281664

ABSTRACT:
An improved buffer circuit, particularly a pulse controlled impedance compensated output buffer. The improvement includes two drivers which are activated during a portion of the switching time of the output. The two drivers are activated for different durations which partially encompass the output transition and may be overlapping. A feedback circuit may also be used, providing further impedance compensation. By the feedback circuit actuating a driver in response to a difference between a reference signal level and an output signal level, the total output drive strength of the buffer is better tailored to the load impedance. The reference signal level may be sampled at a point during the output transition.

REFERENCES:
patent: 3854057 (1974-12-01), Williams et al.
patent: 3970875 (1976-07-01), Leehan
patent: 4567385 (1986-01-01), Falater et al.
patent: 4719369 (1988-01-01), Asano et al.
patent: 4839537 (1989-06-01), Ueno
patent: 4855623 (1989-08-01), Flaherty
patent: 4877978 (1989-10-01), Platt
patent: 4948991 (1990-08-01), Schucker et al.
patent: 4975598 (1990-12-01), Borkar
patent: 5015880 (1991-05-01), Drake et al.
patent: 5036232 (1991-07-01), Jungert et al.
patent: 5039874 (1991-08-01), Anderson
patent: 5059830 (1991-10-01), Tokumaru et al.
patent: 5063308 (1991-11-01), Borkar
patent: 5095231 (1992-03-01), Sartori et al.
patent: 5107230 (1992-04-01), King
patent: 5134311 (1992-07-01), Biber et al.
patent: 5153457 (1992-10-01), Martin et al.
patent: 5162672 (1992-11-01), McMahan et al.
patent: 5166555 (1992-11-01), Kano
patent: 5294845 (1994-03-01), McMahan et al.

Affiliated with

Also associated with

Rating

Pulse controlled impedance compensated output buffer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Pulse controlled impedance compensated output buffer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pulse controlled impedance compensated output buffer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-225435