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TEMPERATURE PROTECTION CIRCUIT, POWER SUPPLY, AND ELECTRONIC DEVICE

  • US 20090262468A1
  • Filed: 09/15/2006
  • Published: 10/22/2009
  • Est. Priority Date: 09/16/2005
  • Status: Active Grant
First Claim
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1. A temperature protection circuit comprising:

  • circuitry to compare a monitored temperature with each of a plurality of threshold temperatures to find the monitored temperature to have reached a threshold temperature when the monitored temperature has been maintained at the threshold temperature or higher over a predetermined confirmation period;

    circuitry to set the confirmation period longer according as a threshold temperature compared with the monitored temperature is lower; and

    circuitry to generate a temperature protection signal corresponding to a threshold temperature that the monitored temperature is found to have reached.

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