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:
Feb. 11, 2014
Filed:
Jul. 22, 2011
Kunhee Cho, Seoul, KR;
Sung-yun Park, Bucheon, KR;
Donghwan Kim, Bucheon, KR;
Fairchild Korea Semiconductor Ltd., Bucheon, KR;
Abstract
The switch control device controls a switching operation of a power switch. The switch control device includes an auxiliary power device. The auxiliary power device includes a parasitic capacitor, and charges the parasitic capacitor by receiving a power voltage to generate an auxiliary power voltage. The switch control device includes a control pulse generator driven by the auxiliary power voltage and generating a set pulse and a reset pulse according to an input signal that is input for controlling the switching operation of the power switch. The switch control device generates a gate signal that turns on the power switch by being synchronized with the set pulse and generates a gate signal that turns off the power switch by being synchronized with the reset pulse.