Title:
POWER SUPPLY SYSTEM AND CHARGING AND DISCHARGING CONTROL METHOD FOR POWER SUPPLY SYSTEM
Document Type and Number:
WIPO Patent Application WO/2014/156041
Kind Code:
A1
Abstract:
A power supply system is provided with an external power supply (3), a plurality of battery units (2), and a connection unit (1). The power supply system provides power from the external power supply (3) to each of the battery units (2) so as to charge the battery units, and in a state where the output from the external power supply (3) is reduced, the battery units (2) provide power to a device to be driven (40). The connection unit (1) is provided with a parallel line (8) that connects the battery units (2) in parallel, connectors (9) that connect each battery unit (2) to the parallel line (8), and a control unit (10) that controls the connection states of the connectors (9). The connection unit (1) is connected to the power supply line (5) of the external power supply (3) via an external connection switch (7). The control unit (10) charges and discharges the plurality of battery units (2) while switching between an equalization charging mode in which precharging is performed while each of the battery units (2) is equalized, a normal charging mode, a fully charged mode, a normal discharging mode in which power is supplied from each of the battery units (2) to the power supply line (5), a discharge stopping mode, and a drive stopping mode.
Inventors:
YAMAGUCHI MASAO
HARADA TARANORI
SEO KAZUHIRO
HARADA TARANORI
SEO KAZUHIRO
Application Number:
PCT/JP2014/001503
Publication Date:
October 02, 2014
Filing Date:
March 17, 2014
Export Citation:
Assignee:
SANYO ELECTRIC CO (JP)
International Classes:
H02J7/00; H01M10/42; H01M10/44; H02J7/35; H02J9/06
Domestic Patent References:
| WO2012043723A1 | 2012-04-05 |
Attorney, Agent or Firm:
TOKUDA, Yoshiaki et al. (JP)
Yoshiaki Tokuda (JP)
Yoshiaki Tokuda (JP)
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