Invention Grant
US09083188B2 Balance correcting apparatus and electricity storage system 有权
平衡校正装置和蓄电系统

  • Patent Title: Balance correcting apparatus and electricity storage system
  • Patent Title (中): 平衡校正装置和蓄电系统
  • Application No.: US14032198
    Application Date: 2013-09-20
  • Publication No.: US09083188B2
    Publication Date: 2015-07-14
  • Inventor: Fumiaki Nakao
  • Applicant: EVTD Inc.
  • Applicant Address: JP Tokyo
  • Assignee: EVTD Inc.
  • Current Assignee: EVTD Inc.
  • Current Assignee Address: JP Tokyo
  • Priority: JP2011-079755 20110331
  • Main IPC: H02J7/00
  • IPC: H02J7/00 H01M10/42
Balance correcting apparatus and electricity storage system
Abstract:
An object of the present invention is to suppress damages to a drive circuit for a switching device due to a counter electromotive force of an inductor. A balance correcting apparatus includes: an inductor; a first switching device; a second switching device; a control signal generating unit that has a first reference voltage input terminal electrically connected to the other end of the first electricity storage cell and a second reference voltage input terminal electrically connected to the other end of the second electricity storage cell, and allows the first switching device and the second switching device to perform an ON-OFF operation alternately; and a voltage stabilizing circuit that keeps a voltage difference between the voltages of the first reference voltage input terminal and the second reference voltage input terminal to be within a predetermined range.
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