Title:
POWER SUPPLY DEVICE USING DC LINK VOLTAGE OF HIGH-VOLTAGE UNIT OF SEMICONDUCTOR TRANSFORMER
Document Type and Number:
WIPO Patent Application WO/2023/182662
Kind Code:
A1
Abstract:
The present invention provides a power supply device for supplying, using a DC link voltage of a high-voltage unit of a semiconductor transformer, a control power to a transformer control unit for controlling the high-voltage unit, the power supply device comprising: a converter unit which includes a transformer unit and a switch connected in series to a primary side of the transformer unit, is connected to a DC link of the high-voltage unit, and is configured to convert the DC link voltage and output the converted DC link voltage to a transformer control unit; and a converter control unit configured to control on/off of the switch to convert the DC link voltage, wherein the converter unit comprises a first to a (n+1)th converter (wherein, n is an integer greater than or equal to 1) connected in series.
Inventors:
HWANG KWANG KYU (KR)
LEE JAE HO (KR)
LIM JEONG WOO (KR)
LEE JAE HO (KR)
LIM JEONG WOO (KR)
Application Number:
PCT/KR2023/002265
Publication Date:
September 28, 2023
Filing Date:
February 16, 2023
Export Citation:
Assignee:
LS ELECTRIC CO LTD (KR)
International Classes:
H02M3/335
Foreign References:
| KR102349935B1 | 2022-01-12 | |||
| KR20170064076A | 2017-06-09 | |||
| KR20180079651A | 2018-07-11 | |||
| KR20190001457A | 2019-01-04 | |||
| US20120319495A1 | 2012-12-20 |
Attorney, Agent or Firm:
ERUUM & LEEON INTELLECTUAL PROPERTY LAW FIRM (KR)
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