Current sensor

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United States of America Patent

PATENT NO 9395393
APP PUB NO 20140292309A1
SERIAL NO

14228420

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A current sensor includes semi-annular first and second magnetic cores, first and second sensors, and a differential output part. The first magnetic core is provided around a wire in which an electric current flows and includes a pair of first magnetic core parts each having a quarter annular shape. The first sensor is provided in the gap between the first magnetic core parts and detects a magnetic flux. The second magnetic core is provided around the wire and includes a pair of second magnetic core parts each having a quarter annular shape. The first and second magnetic cores form an annular magnetic core. The second sensor is provided in the gap between the second magnetic core parts and detects a magnetic flux. The differential output part outputs the differential output of the outputs of the first and second sensors.

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Patent Owner(s)

Patent OwnerAddress
FUJITSU COMPONENT LIMITED12-4 HIGASHI-SHINAGAWA 4-CHOME SHINAGAWA-KU TOKYO 140-0002

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Akieda, Shinichiro Tokyo, JP 64 681
Kurashima, Shigemi Tokyo, JP 106 1102
Nagao, Naoyuki Tokyo, JP 40 394
Nakamura, Akio Tokyo, JP 131 1978
Shimizu, Nobuyoshi Tokyo, JP 105 1466

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