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Title:
CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2015207728
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To prevent overheat without excessively complicating a constitution of an entire control device and without excessively increasing area of a printed circuit board.SOLUTION: A control device includes a printed circuit board on which switch ICs as IC packages each including a semiconductor switch for high-side driving a resistive load are arranged. On the printed circuit board, a plurality of switch ICs are arranged. The control device includes an overheat protection component including a passive element which is connected to the plurality of switch ICs in common and has a function of interrupting or limiting a current of the plurality of switch ICs depending on temperature rise. The plurality of switch ICs are arranged in a positional relation where there is no other switch IC between individual switch ICs and the overheat protection component.

Inventors:
KUMAZAWA SHINJI
TODA SATOSHI
KAWAGISHI KO
NAKANO HITOSHI
Application Number:
JP2014088940A
Publication Date:
November 19, 2015
Filing Date:
April 23, 2014
Export Citation:
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Assignee:
NGK SPARK PLUG CO LTD
International Classes:
H05K1/18; F02P19/02; H05K1/02
Domestic Patent References:
JP2004087851A2004-03-18
JP2009117188A2009-05-28
JP2009177040A2009-08-06
JPH11330665A1999-11-30
JP2011023317A2011-02-03
JPH0459979U1992-05-22
JP2011023556A2011-02-03
JP2010272215A2010-12-02
Attorney, Agent or Firm:
特許業務法人明成国際特許事務所
五十嵐 孝雄