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:
Feb. 23, 2016
Filed:
Sep. 14, 2012
Yu Jin Park, Seoul, KR;
Soon Hwa Kang, Hwaseong-si, KR;
Min Ho Kwon, Seoul, KR;
Jae Hong Kim, Suwon-si, KR;
Kwi Sung Yoo, Seoul, KR;
Seung Hyun Lim, Yongin-si, KR;
Yu Jin Park, Seoul, KR;
Soon Hwa Kang, Hwaseong-si, KR;
Min Ho Kwon, Seoul, KR;
Jae Hong Kim, Suwon-si, KR;
Kwi Sung Yoo, Seoul, KR;
Seung Hyun Lim, Yongin-si, KR;
Abstract
An apparatus includes an operational amplifier circuit comprising at least one operational amplifier and a feedback circuit coupled between the output terminal and input terminal of the operational amplifier circuit and configured to apply a feedback gain to an output signal at the output of the first operational amplifier. The apparatus further includes a variable compensation capacitor coupled to the output terminal of the operational amplifier circuit and configured to vary a capacitance thereof responsive to the feedback gain.