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:
Jun. 22, 1999
Filed:
Feb. 28, 1997
Bahram Fotouhi, Cupertino, CA (US);
Roubik Gregorian, Saratoga, CA (US);
Exar Corporation, Fremont, CA (US);
Abstract
A charge pump circuit that is capable of generating a voltage that is greater in absolute magnitude than that of the substrate voltage Vsub in circuits where the substrate cannot be pumped to a voltage that is greater in absolute magnitude than Vsub is disclosed. Various innovative circuit techniques are used to implement a, for example, negative charge pump circuit in an N-well CMOS process with all PMOS transistors. The negative charge pump circuit according to the present invention can reliably drive on-chip transmission line termination switches.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile