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:
Jul. 05, 2005
Filed:
Jun. 03, 2002
Leonel E. Enriquez, Melbourne Beach, FL (US);
Douglas L. Youngblood, Palm Bay, FL (US);
Leonel E. Enriquez, Melbourne Beach, FL (US);
Douglas L. Youngblood, Palm Bay, FL (US);
Intersil Americas Inc., Milpitas, CA (US);
Abstract
A bandgap reference-based voltage and current generator has a distributed circuit architecture, to reduce the number of voltage dropping components between voltage supply rails containing bandgap voltage generator circuitry. Base current error compensation circuitry is incorporated into current mirror circuits of the generator to yield a composite current having a desired component, defined exclusively in accordance with the desired bandgap voltage, and a base error component containing the desired bandgap voltage, but modified by a second base current error. By differentially combining these two components, the multiple port output current mirror stage removes the base error component of the composite current, leaving only the desired bandgap-based component at each of plural precision output current ports.