Title:
A power supply circuit for mount, and an in-vehicle power supply unit using it
Document Type and Number:
Japanese Patent JP5982632
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To perform appropriate circuit protection without reduction in power efficiency.SOLUTION: 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:
Kazuyoshi Takamatsu
Hideki Takahashi
Nakamura Masatomi
Hideki Takahashi
Nakamura Masatomi
Application Number:
JP2012079151A
Publication Date:
August 31, 2016
Filing Date:
March 30, 2012
Export Citation:
Assignee:
Panasonic IP Management Co., Ltd.
International Classes:
H02J7/00; H01M10/44; H02H3/08; H02H3/20; H02H7/18; H02H11/00; H02M3/155
Domestic Patent References:
| JP2005051951A | ||||
| JP2005289204A | ||||
| JP3273828A |
Attorney, Agent or Firm:
Kenji Kamada
Hiroo Maeda
Hiroo Maeda
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