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Power switching system

  • US 20040251745A1
  • Filed: 06/09/2004
  • Published: 12/16/2004
  • Est. Priority Date: 06/13/2003
  • Status: Abandoned Application
First Claim
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1. Power switching system to be coupled to a first energy source and a second energy source of different voltages, said power swithching sytem comprising a first, second and third terminals, a common mode choke coil includes a core, a first, second and third coils, each coil being connected in series to a terminal, respectively, the second terminal being connected to a ground, wherein the core includes at least a first core and a second core such that each coil is wound around to both the first and the second cores for attenuating the common mode noise from the input and output voltages in predetermined frequency bands, respectively.

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