Title:
DC POWER SUPPLY
Document Type and Number:
Japanese Patent JP2016152673
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a DC power supply capable of easily simulating a blackout state, without a complicated operation such as pulling out an AC plug from a receptacle.SOLUTION: A DC power supply 100 includes: an AC/DC converter 10 which converts AC power, supplied from commercial power AC1, into DC power to output; and a blackout advance notice circuit 30 which outputs a blackout advance notice signal on detecting the blackout of the commercial power before the output voltage of the AC/DC converter decreases. The DC power supply 100 further includes: a blackout state generation switch S1 which forcibly causes the blackout advance notice circuit to output the blackout advance notice signal during the non-blackout of the commercial power; and a switch circuit 40 which, on the accompaniment of the operation of the simulated blackout generation switch, cuts off an output side feeder line of the AC/DC converter 10, after the lapse of a predetermined time after the output of the blackout advance notice signal from the blackout advance notice circuit 30.SELECTED DRAWING: Figure 1
Inventors:
SHIMADA KATSURA
Application Number:
JP2015028256A
Publication Date:
August 22, 2016
Filing Date:
February 17, 2015
Export Citation:
Assignee:
TABUCHI DENKI KK
International Classes:
H02M7/12; H02M7/04
Attorney, Agent or Firm:
Kaoru Hashimoto
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