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Latching relay using Hall effect device

  • US 4,295,118 A
  • Filed: 05/21/1980
  • Issued: 10/13/1981
  • Est. Priority Date: 05/21/1980
  • Status: Expired due to Term
First Claim
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1. A latching switch comprising:

  • a Hall effect digital switching device including a Hall sensor for generating an output voltage proportional to magnet field strength and means responsive to the output voltage generated by said Hall sensor for providing a switching function;

    a reversible bias magnet supported with a pole thereof contiguous said Hall sensor for generating at one polarity, a first output voltage providing a switching function and at a reverse polarity a second output voltage providing a converse switching function; and

    ,means for reversing the polarity of said reversible bias magnet.

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