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. 16, 2012
Filed:
Jan. 12, 2011
Jeong MO Yang, Seoul, KR;
Changsik Yoo, Seoul, KR;
Young Jin Moon, Gwangju, KR;
Yong Seong Roh, Incheon, KR;
Joong Ho Choi, Gyunggi-do, KR;
Jae Shin Lee, Gyunggi-do, KR;
Jung Chul Gong, Seoul, KR;
Yu Jin Jang, Gyunggi-do, KR;
Jeong Mo Yang, Seoul, KR;
Changsik Yoo, Seoul, KR;
Young Jin Moon, Gwangju, KR;
Yong Seong Roh, Incheon, KR;
Joong Ho Choi, Gyunggi-do, KR;
Jae Shin Lee, Gyunggi-do, KR;
Jung Chul Gong, Seoul, KR;
Yu Jin Jang, Gyunggi-do, KR;
Samsung Electro-Mechanics Co., Ltd., Gyunggi-do, KR;
University of Seoul Industry Cooperation Foundation, Seoul, KR;
Abstract
A relaxation oscillator includes a ramp wave generator configured to generate a ramp wave by complementary first capacitor module charged and discharged according to a first switching signal and second capacitor module charged and discharged according to a second switching signal, a negative feedback circuit unit configured to generate a compensation voltage for compensating an error between the ramp wave and a reference voltage through a feedback of the ramp wave, and a switching signal generator configured to generate the first switching signal and the second switching signal from the compensation voltage and the ramp wave, including a peak voltage storage unit configured to store a peak voltage of the ramp wave that is controlled to be equal to the reference voltage based on the compensation voltage and a peak voltage transfer unit configured to transfer the peak voltage of the ramp wave to the negative feedback unit.