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:
Sep. 09, 2008
Filed:
Aug. 30, 2006
Chun-hsiung Chen, Hsinchu, TW;
Chun-Hsiung Chen, Hsinchu, TW;
Holtek Semiconductor Inc., Hsinchu, TW;
Abstract
An input offset voltage corrector used in an operational amplifier includes a switch unit, a register unit, an offset voltage correction unit and a micro control unit. The micro control unit sets the register unit to control the switch unit to switch the input offset voltage corrector to different operating modes. If an input offset voltage corrector is set to the offset voltage correcting mode, the offset voltage correction unit will adjust the input offset voltage of the operational amplifier to output an exact signal. Furthermore, the input offset voltage corrector can adjust the input offset voltage anytime according to the operating conditions to maintain the best characteristic of the operational amplifier.