Title:
BATTERY MODULE VOLTAGE CONTROL DEVICE, BATTERY MODULE AND POWER SUPPLY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/209238
Kind Code:
A1
Abstract:
This power supply system (100) is provided with a battery module (10) and a converter unit (102). A bidirectional DC-DC converter (a battery module voltage control device 10) is connected between a load (103) and a secondary battery (13), transforms the discharge voltage of the secondary battery (13) and outputs to the load (103). A voltage control unit (a control unit 11, a bidirectional DC-DC converter 12) transforms the discharge voltage of the secondary battery (13) to an output voltage target value, which is the target value of the voltage outputted to the load (103), and outputs to the load (103). If the output current value obtained by an output current value acquisition unit is greater than or equal to a first threshold value that is less than a prescribed value, then the output voltage target value rises together with increase in the output current value, and if the output current value is between the first threshold value and a second threshold value that is lower than the prescribed value and higher than the first threshold value, then the output voltage target value is set higher than the output voltage of the converter unit (102).
Inventors:
MORI MICHIYA (JP)
Application Number:
PCT/JP2017/020423
Publication Date:
December 07, 2017
Filing Date:
June 01, 2017
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H02M3/00
Domestic Patent References:
| WO2009107680A1 | 2009-09-03 |
Foreign References:
| JP2002171692A | 2002-06-14 | |||
| JP2013021865A | 2013-01-31 | |||
| JPS54104947U | 1979-07-24 | |||
| JP2011125124A | 2011-06-23 | |||
| JP2015154552A | 2015-08-24 |
Other References:
See also references of EP 3447893A4
Attorney, Agent or Firm:
KAEDE PATENT ATTORNEYS' OFFICE (JP)
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