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. 26, 2013
Filed:
Nov. 24, 2009
Applicants:
In-chul Hwang, Seoul, KR;
Myung-woon Hwang, Seongnam, KR;
Je-cheol Moon, Seoul, KR;
Hyun-ha JO, Seoul, KR;
Inventors:
In-chul Hwang, Seoul, KR;
Myung-woon Hwang, Seongnam, KR;
Je-cheol Moon, Seoul, KR;
Hyun-ha Jo, Seoul, KR;
Assignee:
FCI Inc., Gyeonggi-Do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G05F 3/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
A low noise reference voltage circuit without using an amplifier inside is capable of transforming a current Iin positive proportion to absolute temperature into a voltage Vin positive proportion to absolute temperature, and outputting it to a ring oscillator. The low noise reference voltage circuit improves a degradation of noise performance compared with a conventional band-gap reference voltage circuit and is in characteristic of low noise and higher PSRR.