Temperature detection system
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United States of America Patent
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Dec 10, 2013
Grant Date -
Jun 25, 2009
app pub date -
Jun 12, 2008
filing date -
Dec 25, 2007
priority date (Note) -
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Abstract
A temperature detection system includes a power semiconductor device, a chip temperature detection device for detecting a temperature of the power semiconductor device, loss-related characteristic value acquiring means for acquiring a loss-related characteristic value that is a characteristic to decide a loss of the power semiconductor device, difference value calculating means for calculating, from the loss-related characteristic value, a difference value between the temperature of the power semiconductor device and a temperature detected by the chip temperature detection device, a corrected temperature signal generating part for generating a corrected temperature signal by adding the temperature detected by the chip temperature detection device and the difference value, and an output part for outputting the corrected temperature signal to the outside.
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