Title:
POWER SUPPLY DEVICE AND LASER DEVICE COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2018/016832
Kind Code:
A1
Abstract:
A power supply device according to an embodiment of the present invention comprises: a first power cell for supplying first power to one end of a load during a first supply period and stopping the supply of the first power during a first supply stop period following the first supply period; a second power cell for supplying second power having the same polarity as the first power to the other end of the load during a second supply period within the first supply period and stopping the supply of the second power during a second supply stop period including the first supply stop period and following the second supply period; a first switch driving unit for driving switches of the first power cell which perform the supplying and stopping of the first power to the load in accordance with the charging of a first charger unit according to a secondary voltage transformed from a primary voltage; and a second switch driving unit for driving switches of the second power cell which perform the supplying and stopping of the second power to the load in accordance with the charging of a second charger unit according to the secondary voltage transformed from the primary voltage.
Inventors:
KIM HYOUNG SUK (KR)
YU CHAN HUN (KR)
JANG SUNG ROC (KR)
KIM GUANG HOON (KR)
YU CHAN HUN (KR)
JANG SUNG ROC (KR)
KIM GUANG HOON (KR)
Application Number:
PCT/KR2017/007677
Publication Date:
January 25, 2018
Filing Date:
July 17, 2017
Export Citation:
Assignee:
KOREA ELECTRO TECH RESEARCH INSTITUTE (KR)
International Classes:
H02M3/335; H01S3/091; H01S3/11; H02J9/06
Foreign References:
| KR20010047855A | 2001-06-15 | |||
| KR20130048196A | 2013-05-09 | |||
| JP2009182021A | 2009-08-13 | |||
| KR20110008438A | 2011-01-27 | |||
| JP2009171756A | 2009-07-30 |
Attorney, Agent or Firm:
NEIT INTERNATIONAL PATENT LAW FIRM (KR)
Download PDF: