Title:
POWER SUPPLY SYSTEM
Document Type and Number:
Japanese Patent JP2015033234
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a power supply system in which overdischarge of a storage battery is surely prevented and trouble does not occur in reactivation of the system.SOLUTION: The power supply system includes : a power supply device P including a first power source system P1 for feeding power from a first power source to a DC bus and a second power source system P2 connecting a second power source that is a storage battery 6 and the DC bus with each other via a two-way DC/DC converter 8; an overdischarge protection circuit 7 which is provided between the storage battery 6 and the two-way DC/DC converter 8 and brings discharging of the storage battery 6 into a full-stop state by opening cable run LP2 when a remaining capacity of the storage battery 6 is reduced to a predetermined level; a DC power supply path for providing a voltage of the DC bus to the overdischarge protection circuit 7; a control power supply circuit 10 of the power supply device P for generating a control power supply voltage on the basis of the voltage of the DC bus; and a control part 11 which operates by receiving supply of the control power supply voltage and sends a signal for closing the cable run LP2 to the overdischarge protection circuit 7 when recovering from a state where the control power supply voltage is lost.
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Inventors:
TAKESHITA KOICHI
UDONO NAOTADA
AYAI NAOKI
UDONO NAOTADA
AYAI NAOKI
Application Number:
JP2013161398A
Publication Date:
February 16, 2015
Filing Date:
August 02, 2013
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES
International Classes:
H02J7/00; H02J7/02
Domestic Patent References:
| JP2010098827A | 2010-04-30 | |||
| JP2013085459A | 2013-05-09 | |||
| JPH07147772A | 1995-06-06 | |||
| JP2008054473A | 2008-03-06 | |||
| JP2009011081A | 2009-01-15 | |||
| JP2000341876A | 2000-12-08 | |||
| JPS62272830A | 1987-11-27 | |||
| JP2008022641A | 2008-01-31 |
Attorney, Agent or Firm:
Patent business corporation Sun Crest international patent firm