Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 9, 2010
Patent Application Number
11586861
Date Filed
October 26, 2006
Patent Primary Examiner
Patent abstract
A DC-DC converter has a switching circuit including switching elements at the high-side and at the low-side, an inductor connected to the output end of the switching circuit, a smoothing capacitor connected to the inductor, a switching control circuit for supplying a switching pulse to the switching elements, and a circuit. The circuit detects that a state that the switching element at the high side is switched off and the switching element at the low side is switched on is maintained for a predetermined period or longer. In this case, the circuit forcibly switches off the switching element at the low side.
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