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Fault tolerant thermoelectric device circuit

  • US 5,650,904 A
  • Filed: 03/19/1996
  • Issued: 07/22/1997
  • Est. Priority Date: 02/08/1994
  • Status: Expired due to Term
First Claim
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1. A thermoelectric device comprising:

  • at least one thermoelectric element;

    an electrical circuit for supplying electricity to said thermoelectric element;

    a by-pass circuit coupled in parallel with said thermoelectric element for providing an electrical path for electricity supplied to said thermoelectric element to by-pass said thermoelectric element in response to a failure of said thermoelectric element and to allow continued current flow through the electrical circuit;

    said by-pass circuit being operable to maintain substantially the same amount of current flow through the electrical circuit in response to said failure of said thermoelectric element; and

    said by-pass circuit having a normally off state which presents high impedance to said electrical circuit providing electricity to said thermoelectric element.

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