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Title:
IN-VEHICLE POWER-SUPPLY CIRCUIT AND IN-VEHICLE POWER-SUPPLY UNIT USING THE SAME
Document Type and Number:
Japanese Patent JP2013211959
Kind Code:
A
Abstract:

To perform appropriate circuit protection without reduction in power efficiency.

An in-vehicle power-supply circuit includes: a storage battery 6; a fuse 7 connected to the storage battery 6; a series connection body 11 connected to the fuse 7 and composed of a choke coil 9 and a switching element 10; a rectifier smoothing circuit 12 connected between the choke coil 9 and the switching element 10; an output terminal 13 connected to the rectifier smoothing circuit 12; and a control circuit 19 controlling the switching element 10. When a negative electrode of the storage battery 6 is connected to the fuse 7 side, the fuse 7 is disconnected by a diode 21, the choke coil 9, and the fuse 7 being energize by series connection, so that the choke coil 9, the switching element 10, and the control circuit 19, and a rectifier circuit are protected.


Inventors:
Takamatsu, Kazuyoshi
Takahashi, Hideki
Nakamura, Masafumi
Application Number:
JP2012000079151
Publication Date:
October 10, 2013
Filing Date:
March 30, 2012
Export Citation:
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Assignee:
PANASONIC CORP
International Classes:
H02J7/00; H01M10/44; H02H3/08; H02H3/20; H02H7/18; H02H11/00; H02M3/155
Domestic Patent References:
JP2005051951A2005-02-24
JP2005289204A2005-10-20
JPH03273828A1991-12-05
JP2005051951A2005-02-24
JP2005289204A2005-10-20
JPH03273828A1991-12-05
Attorney, Agent or Firm:
内藤 浩樹
永野 大介
藤井 兼太郎



 
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