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LINE FILTER, SWITCHING POWER SUPPLY MOUNTING LINE FILTER, AND IMAGE FORMING APPARATUS

  • US 20130051081A1
  • Filed: 08/27/2012
  • Published: 02/28/2013
  • Est. Priority Date: 08/31/2011
  • Status: Abandoned Application
First Claim
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1. A line filter for a switching power supply, the switching power supply including a rectifier unit configured to rectify an AC voltage, a transformer configured to transform the voltage rectified by the rectifier unit to output a resultant voltage, a switching unit configured to drive the transformer, and a radiation unit configured to radiate heat generated during operation of the switching unit, the line filter comprising:

  • a capacitive element connected between voltage supply lines to which the rectifier unit and the transformer are connected; and

    a current path configured to allow a noise current to flow between the transformer and the capacitive element.

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