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. 27, 2007
Filed:
Feb. 17, 2005
Wenzhe Luo, Shanghai, CN;
Paul Ouyang, Shanghai, CN;
Wenzhe Luo, Shanghai, CN;
Paul Ouyang, Shanghai, CN;
Abstract
An apparatus and method for regulating voltage levels. The apparatus includes a first transistor and a second transistor coupled to the first transistor. The first transistor is configured to receive a reference voltage, and the second transistor is configured to receive a feedback voltage and generate a first voltage. The first voltage is associated with a difference between the reference voltage and the feedback voltage. Additionally, the apparatus includes a third transistor coupled to the second transistor and configured to receive the first voltage from the second transistor and generate an output voltage in response to at least the first voltage. Moreover, the apparatus includes a fourth transistor coupled to the third transistor and configured to receive the output voltage from the third transistor and generate the feedback voltage, and a first current generation system coupled to the fourth transistor through at least a node.