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Temperature detector and the method using the same

  • US 8,096,706 B2
  • Filed: 08/06/2008
  • Issued: 01/17/2012
  • Est. Priority Date: 05/27/2008
  • Status: Active Grant
First Claim
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1. A temperature detector, comprising:

  • a first multiplexer having a plurality of input terminals connected to voltage dividers;

    an electronic component with a temperature-dependent threshold voltage;

    a first comparator having input terminals connected to outputs of the electronic component and the first multiplexer;

    a second comparator having input terminals connected to outputs of the electronic component and the first multiplexer;

    a second multiplexer connected to the outputs of the first and second comparators; and

    a controller connected to the output of the second multiplexer and configured to generate selecting and enabling signals of the first and second comparators;

    wherein the first and second comparators are responsible for detecting different temperature ranges.

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