The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 06, 2001
Filed:
Oct. 21, 1998
Charles J. Masenas, Essex Junction, VT (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An H-driver circuit is provided that has a mechanism for selectively reducing one or more RC time constants within the H-driver circuit. Selectively reducing one or more RC time constants within the H-driver circuit reduces the turn-ON time of one or more of the H-driver circuit's pull-up transistors, and increases the speed of the H-driver circuit with little increase in power consumption. Each RC time constant preferably is selectively reduced via a feedback path between an output terminal of the H-driver circuit and a resistance reducer operatively coupled to the pull-up transistor whose turn-ON time is to be reduced. Preferably the resistance reducer comprises a transistor, more preferably a MOSFET and most preferably a p-channel MOSFET.