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:
Jun. 22, 2010
Filed:
Jul. 10, 2008
Shiau-wen Kao, Hsinchu, TW;
Ming-ching Kuo, Hsinchu, TW;
Chih-hung Chen, Kaohsiung, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
An operational amplifier includes a first stage and a second stage, the first stage for receiving two input signals and the second stage being coupled to the first stage, wherein the second stage includes a first part with a first output of the operational amplifier, and a second part with a second output of the operational amplifier. A method includes providing a first current to the first part of the second stage, and providing a second current to the second part of the second stage. The method further includes adjusting the first current based on a current consumption of the first part of the second stage, and adjusting the second current based on a current consumption of the second part of the second stage, wherein the sum of the first current and the second current is substantially constant.