Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Shinichiro Matsumoto0
Date of Patent
April 8, 2008
0Patent Application Number
110582390
Date Filed
February 16, 2005
0Patent Primary Examiner
Patent abstract
A switching regulator has an input voltage detection circuit which inputs a voltage applied to a rectifier diode 7 connected in series with the secondary side of a transformer and generates a voltage signal Vvp corresponding to the voltage, and a calculation unit which calculates a voltage value Vin inputted to the primary side of the transformer based on a voltage value of the voltage signal generated by the input voltage detection circuit.
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