CURRENT DETECTOR AND CURRENT DETECTION METHOD
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United States of America Patent
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Issued Date -
May 26, 2016
app pub date -
Nov 18, 2015
filing date -
Nov 25, 2014
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Abstract
A current detector includes a plurality of current paths arranged in parallel, magnetic detection portions that are provided corresponding to the plurality of current paths and have magnetic detection elements for detecting strength of a magnetic field generated by an electric current flowing through each of the current paths, a temperature sensor for detecting a temperature of the magnetic detection portions, correction circuits for correcting an output of the magnetic detection elements based on a result of detection by the temperature sensor, and detection circuits for detecting a magnitude of the electric current flowing through each of the current paths based on the output corrected by the correction circuits. The magnetic detection portions and the temperature sensor are housed, together with a portion of the plurality of current paths, in a molded package. A number of the temperature sensor is less than that of the magnetic detection portions.
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