Title:
２次電池の充放電装置
Document Type and Number:
Japanese Patent JP5820316
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a large discharge current in a charge and discharge device.SOLUTION: During discharge of a secondary battery 1, a controller 10 generates a pulse signal Sthe duty ratio of which is adjusted based on a discharge current I, and generates an upper drive signal GH and a lower drive signal GL by delaying the edge of the pulse signal by a dead time Td. When the pulse width of the pulse signal S, i.e., the period from the first edge to the second edge thereof, is larger than a predetermined first threshold, the controller 10 sets the dead time Td to an initial value Td. When the pulse width of the pulse signal Sis equal to or smaller than the first threshold, the gate upper drive signal GH is fixed to an off level, and the dead time Td is set shorter than the initial value Td.
Inventors:
Takashi Sato
Ito Takumi
Toshihiko Seniwa
Ito Takumi
Toshihiko Seniwa
Application Number:
JP2012057879A
Publication Date:
November 24, 2015
Filing Date:
March 14, 2012
Export Citation:
Assignee:
Sumitomo Heavy Industries Ltd.
International Classes:
H02J7/10; G01R31/36; H01M10/44; H02J7/00
Domestic Patent References:
| JP2001128369A | ||||
| JP2011166990A | ||||
| JP2007221922A |
Attorney, Agent or Firm:
Sakaki Morishita
Yusuke Murata
Tomoyuki Miki
Tomisho Teruo
Yusuke Murata
Tomoyuki Miki
Tomisho Teruo
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