Off chip driver

Details Off chip driver Off chip driver

2005-10-25

2005-10-25

Le, Don (Department: 2819)

Electronic digital logic circuitry

Interface

Current driving

C326S081000

Reexamination Certificate

active

06958626

ABSTRACT:
A system and method is provided for controlling the impedance and current of an off chip driver circuit to match to load driven by the driver and for reducing noise and ringing in the off chip driver circuit. The driver comprises a pull up transistor for switching the output of the driver to a high-voltage, a pull down transistor for switching the output of the driver to a low voltage, a first current mirror transistor coupled to the pull up transistor for controlling the current transmitted to a load connected to the driver when the output of the driver is at the high-voltage, and a second current mirror transistor coupled to the pull down transistor for controlling the current transmitted to the load when the output of the driver is at the low voltage. In addition, the driver may include a first pre-driver providing a gate signal for the pull up transistor having a controlled slew rate and a second pre-driver providing a gate signal for the pull down transistor having a controlled slew rate.

REFERENCES:
patent: 4791326 (1988-12-01), Vajdic et al.
patent: 5864506 (1999-01-01), Arcoleo et al.
patent: 5939937 (1999-08-01), Terletzki
patent: 5955894 (1999-09-01), Vishwanthaiah et al.
patent: 6353338 (2002-03-01), Fiedler et al.
patent: 6459300 (2002-10-01), Terletzki
patent: 6501298 (2002-12-01), Terletzki

Affiliated with

Also associated with

Rating

Off chip driver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Off chip driver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Off chip driver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3474822