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. 05, 2013
Filed:
Mar. 16, 2011
Applicants:
Sung Nam Kim, Seoul, KR;
Cha Kwang Kim, Seoul, KR;
Young Sik Lee, Seoul, KR;
Inventors:
Assignee:
Fairchild Korea Semiconductor Ltd., Bucheon, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 4/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A ramp waveform generating apparatus generates a reference waveform by using an input signal and generates a driving control signal for turning on and off a switch having a first terminal connected to a load and a second terminal connected to a power supply by comparing the voltage of the reference waveform with the voltage of the load. While the switch is repetitively turned on and off in accordance with the driving control signal, a ramp waveform may be generated.