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Thermally coupled information transmission across electrical isolation boundaries

  • US 4,757,528 A
  • Filed: 09/05/1986
  • Issued: 07/12/1988
  • Est. Priority Date: 09/05/1986
  • Status: Expired due to Term
First Claim
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1. An electro-thermal isolator comprising:

  • a substrate having first, second and third electrically isolated regions;

    thermal transmitting means in a said first region for receiving an electrical input signal and generating a transmitted thermal signal in response to said electrical input signal;

    first thermal receiving means in said second region for receiving said transmitted thermal signal and generating a first electrical output signal;

    second thermal receiving means in said third region for receiving said transmitted thermal signal and generating a second electrical output signal; and

    error means in said substrate for comparing said second electrical output signal with said electrical input signal and adjusting the generating of said transmitted thermal signal.

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