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:
Sep. 07, 2004
Filed:
Sep. 25, 2002
Timothy P. Pauletti, Plano, TX (US);
David Baldwin, Allen, TX (US);
John H. Carpenter, Jr., Rowlett, TX (US);
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A high voltage integrated circuit operable in a system having a low voltage reference, a high voltage reference, and a ground, for providing an output voltage higher than the high voltage reference. The integrated circuit includes a high voltage ground reference circuit, operable to provide a high voltage ground reference node. Also included is an oscillator, operable to provide a clock signal, the oscillator being connected to the high voltage reference and to the high voltage ground reference node. An isolated charge pump circuit is provided, operable to generate the output voltage and isolated in the integrated circuit from other circuitry.