Title:
MAGNETIC INDUCTION POWER SUPPLY DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/074861
Kind Code:
A1
Abstract:
Proposed is a magnetic induction power supply device which is switched during an initial operation so that the unit coil having the smallest number of windings is connected in series with a rectification unit for a set time, thereby preventing component damage caused by an excessive inrush voltage during the initial operation. The proposed magnetic induction power supply device is switched so that, for the set time, the unit coil having the smallest number of windings among a plurality of unit coils included in a current transformer is connected to the rectification unit when emergency power is applied from a first power supply unit composed of a battery or a second power supply unit composed of a rectification circuit. Here, the second power supply unit can supply as emergency power to a sensing unit, power induced from at least one of the unit coils of the current transformer.
Inventors:
NA WON-SAN (KR)
PARK JIN-PYO (KR)
CHOI JUNG-HYUN (KR)
HAN CHEOL-SEUNG (KR)
PARK JIN-PYO (KR)
CHOI JUNG-HYUN (KR)
HAN CHEOL-SEUNG (KR)
Application Number:
PCT/KR2017/011585
Publication Date:
April 26, 2018
Filing Date:
October 19, 2017
Export Citation:
Assignee:
AMOSENSE CO LTD (KR)
International Classes:
H02J50/10; G05F1/14; H02J9/00; H02M7/06
Domestic Patent References:
| WO2016064725A1 | 2016-04-28 |
Foreign References:
| KR20100090009A | 2010-08-13 | |||
| KR20090046439A | 2009-05-11 | |||
| KR20150000636A | 2015-01-05 | |||
| KR20130097255A | 2013-09-03 |
Attorney, Agent or Firm:
HONESTY & JR PARTNERS INTELLECTUAL PROPERTY LAW GROUP (KR)
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