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Power supply

  • US 20040156220A1
  • Filed: 11/25/2003
  • Published: 08/12/2004
  • Est. Priority Date: 11/26/2002
  • Status: Active Grant
First Claim
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1. A power supply for use in an electrical apparatus having a plurality of operational modes including a normal mode and a standby mode, the power supply comprising:

  • a DC power unit for outputting a DC voltage;

    a microcomputer for outputting a mode control signal according to the operational mode of the electrical apparatus;

    a first power converter, controlled by the mode control signal, for converting the DC voltage output of said DC power unit into at least one operation voltage required for powering a plurality of loads; and

    a second power converter for supplying said microcomputer with a regulated feedback voltage in the standby mode of the electrical apparatus.

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