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:
Oct. 13, 2015
Filed:
Nov. 26, 2013
Applicants:
Ning Zhang, Shanghai, CN;
Benyan Wang, Shanghai, CN;
Inventors:
Ning Zhang, Shanghai, CN;
Benyan Wang, Shanghai, CN;
Assignee:
Shanghai Huali Microelectronics Corporation, Shanghai, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N 5/335 (2011.01); H04N 9/04 (2006.01); H04N 5/369 (2011.01); H04N 5/3745 (2011.01); H04N 5/357 (2011.01);
U.S. Cl.
CPC ...
H04N 5/3698 (2013.01); H04N 5/3577 (2013.01); H04N 5/3745 (2013.01);
Abstract
The present invention discloses a device of CMOS image sensor, exactly, relates to a kind of CMOS charge pump circuit. The invention compromises: two current mirrors and two operational amplifiers are added into the CMOS charge pump circuit. The feed-through current is suppressed when signal switches in the said circuit. It solved the problem of the big voltage jump of the output voltage when the logic signal switches. It guarantees the stabilities of the circuit and the output voltage.