Power supply for electrochromic mirrors in high voltage automotive power systems

  • US 6,262,831 B1
  • Filed: 10/22/1999
  • Issued: 07/17/2001
  • Est. Priority Date: 10/22/1999
  • Status: Expired due to Term
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First Claim
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1. A rearview mirror assembly for a vehicle comprising:

  • a housing adapted to be mounted to the vehicle;

    an electrochromic mirror disposed in said housing;

    a control circuit for controlling the electrochromic mirror; and

    a power supply for receiving power from a vehicle power source having a voltage in excess of about 24 V and supplying power at a voltage of about 5 V or less to said control circuit, said control circuit and said power supply exhibiting an electromagnetic interference level less than about 41 dBμ

    V/m for emissions in the frequency range from about 0.4 MHz to about 20 MHz.

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