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Tuner-compatible switch mode power supply architecture

  • US 20070054650A1
  • Filed: 11/08/2004
  • Published: 03/08/2007
  • Est. Priority Date: 11/14/2003
  • Status: Abandoned Application
First Claim
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1. A power supply arrangement (10) comprising:

  • a first power supply (11) having a configuration arranged to inhibit electromagnetic interference, wherein said first supply produces at least one first output voltage and supplies it to a first device (12) which is sensitive to electromagnetic interference;

    a second power supply (14) having a configuration arranged to produce at least one second output voltage, wherein said second supply produces said at least one second output voltage and supplies it to a second device (15, 16, 17); and

    a control means (18) arranged to operate said second power supply, wherein said second power supply is deactivated when said first device is operative and fed from said first power supply.

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