Two-stage charge equalization method and apparatus for series-connected battery string직렬전지그룹의 2레벨 식 충전 균형 방법과 장치에 사용된다

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A two- stage charge equalization apparatus for a series-connected battery string comprises a battery module having a plurality of batteries connected in series; a battery string having M (M=2) battery modules connected in series; M charge control switch modules connected in parallel to each of the M battery modules; M second DC/DC converters connected to each of the M charge control switch modules,- a single first DC/DC converter connected to the M second DC/DC converter; and a microprocessor controlling the charge control switch module, wherein the first DC/DC converter is inputted with an overall potential of the battery string and outputs a potential lower than the potential inputted and each of batteries composing the battery module shares the second DC/DC converter using the charge control switch module.
Assignee
KAIST
Country
CC (Cocos Islands)
Issue Date
2013-01-09
Application Date
2008-10-16
Application Number
2008-80111482
Registration Date
2013-01-09
Registration Number
101821920
URI
http://hdl.handle.net/10203/230946
Appears in Collection
EE-Patent(특허)
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