Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Young-Chul Ryu0
Jin-Ho Choi0
Date of Patent
June 24, 2008
0Patent Application Number
111978010
Date Filed
August 5, 2005
0Patent Primary Examiner
Patent abstract
Disclosed is an SMPS for preventing abnormal overcurrents. A circuit having a short circuit delay is used to generate a control signal for turning off a main switch (i.e., a switching MOS transistor) when the overcurrent occurs, that is, in an initial startup or when a protection circuit is operated. Accordingly, a drain-source voltage of the main switch is reduced when the main switch is turned off, and a switching MOS transistor with a low withstanding voltage can be used.
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