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:
Mar. 28, 2006
Filed:
Jan. 30, 2004
Robert M. Bartel, Hillsboro, OR (US);
Joey I. Doernberg, San Carlos, CA (US);
Edward E. Miller, Beaverton, OR (US);
Robert M. Bartel, Hillsboro, OR (US);
Joey I. Doernberg, San Carlos, CA (US);
Edward E. Miller, Beaverton, OR (US);
Lattice Semiconductor Corporation, Hillsboro, OR (US);
Abstract
A bandgap reference circuit can use various output stages to implement a controlled feedback method of sensing and supplying the needed load current through a sensing network. A small amount of circuitry can be added to a class AB output stage to decouple the bandgap reference feedback from a capacitive load and simultaneously sense load current needs and boost current as needed while minimizing voltage droop. Such circuits can be implemented using relatively compact designs while still reducing droop, and thus allowing the use of a large external capacitor to reduce noise and maintain good power supply rejection.