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:
May. 08, 2012
Filed:
May. 18, 2007
Applicants:
Gwan-bon Koo, Bucheon, KR;
Young-bae Park, Bucheon, KR;
Sung-won Yun, Bucheon, KR;
Inventors:
Assignee:
Fairchild Korea Semiconductor, Ltd., Bucheon, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04J 7/00 (2006.01); H03M 3/00 (2006.01); H03K 7/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention relates to a switch controlling apparatus. The switch controlling apparatus controls a main switch by using a first signal that corresponds to a current flowing to the main switch. The switch controlling apparatus includes a PWM controller for generating a control signal to control turning on/off of the main switch by using the first signal and a clock signal, and a TSD unit for changing the control signal corresponding to heat generated from the main switch. The TSD unit changes a response speed for the heat of the main switch by using the clock signal and the control signal.