Title:
BATTERY SYSTEM CONTROLLER
Document Type and Number:
Japanese Patent JP2017158296
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a battery system controller capable of dispersing heat evolution approximately equalized in a pair of semiconductor switches.SOLUTION: A main FET and sub FET are connected in series between a pair of batteries so that forward directions of parasitic diodes are reverse to each other. When controlling the main FET and sub FET from OFF to ON, a switch control circuit energizes, in a non-saturation region, a gate of the main FET connected to the high voltage side of the pair of batteries and supplies, as gate voltage, gradually varying voltage that gradually increases before supplying, as gate voltage, constant voltage that is constant so as to perform energization in a saturation region VP; and, during supply of the gradually varying voltage as the gate voltage, supplies pulse-like gate voltage to a gate of the sub FET connected to the low voltage side before supplying, as gate voltage, constant voltage Vp that performs energization in the saturation region.SELECTED DRAWING: Figure 2
Inventors:
TAKAHASHI ATSUSHI
FUJISAWA KENICHI
TERADA YASUHARU
NAKAMURA KEIICHI
HORITAKE SUNAO
FUJISAWA KENICHI
TERADA YASUHARU
NAKAMURA KEIICHI
HORITAKE SUNAO
Application Number:
JP2016039149A
Publication Date:
September 07, 2017
Filing Date:
March 01, 2016
Export Citation:
Assignee:
YAZAKI CORP
TOYOTA MOTOR CORP
TOYOTA MOTOR CORP
International Classes:
H02J7/00; H01M2/10; H01M10/44; H03K17/00; H03K17/693
Attorney, Agent or Firm:
Fumio Takino
Hideo Takino
Takao Kawasaki
Toshiaki Tsuda
Masashi Torino
Yasuhiro Fukuda
Hideo Takino
Takao Kawasaki
Toshiaki Tsuda
Masashi Torino
Yasuhiro Fukuda
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