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:
Jan. 01, 2002
Filed:
Sep. 29, 2000
Ramkishore Ganti, Elmherst, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A circuit and method for initiating operation of a bandgap reference circuit. A start pulse circuit provides a start pulse when the bandgap circuit is powered up. A transistor receives the pulse as an input, and applies the pulse to a regenerative bandgap reference circuit. The bandgap reference circuit output voltage is forced above a normal output voltage, producing a feedback current through the bandgap reference circuit, providing a current level which exceeds the normal stable operating level and output voltage level range. When the pulse ceases, the regenerative bandgap reference circuit output voltage decreases to its normal stable value, and the regenerative bandgap reference circuit is placed in its normal stable operating state.