Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Masayuki Yasumura0
Date of Patent
February 2, 2010
Patent Application Number
11713563
Date Filed
March 1, 2007
Patent Primary Examiner
Patent abstract
There is provided a switching power supply circuit which may include a rectifying and smoothing section for converting an alternating input voltage from an alternating-current power supply into a primary side direct-current voltage; a converter section for converting the primary side direct-current voltage from the rectifying and smoothing section into an alternating voltage and further converting the alternating voltage into a secondary side direct-current voltage; and a power factor improving section for improving a power factor.
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