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:
Oct. 02, 2001
Filed:
Oct. 28, 1999
Ghadir Robert Gholami, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
An electronic system, precharge circuit, and method for precharging system net. The system includes a plurality of devices. Each of the devices includes at least one I/O pin driven by an driver circuit. The system further includes a system net connected to at least one of the I/O pins of each of the plurality of devices. A precharge circuit suitable for connecting to the system net is provided. The precharge circuit includes a sense stage and a charging stage. The sense stage is configured to receive the system net voltage as an input and adapted to sense a system net voltage transition. The charging stage is connected to the system net and configured to receive an output of the sense stage. The sense stage is configured to activate the charging stage in response to detecting a system net voltage transition. The charging stage, upon activation, is configured to provide a current path between a supply voltage and the system net for a specified duration. After the specified duration, the current path is disabled.