Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10020749 | Power conversion unit | Chunfeng Jin, Joo Suk Kang, Jae Sam Lee, Jung-Hwan Choi | 2018-07-10 |
| 9899935 | Power factor correction device with first and second output parts | Jae Sam Lee | 2018-02-20 |
| 9893608 | Power supply device | Dong Gyun Kim, Jae Sam Lee | 2018-02-13 |
| 9490708 | Multiple-output DC/DC converter and power supply having the same | Chunfeng Jin, Jae Sam Lee, Hyun Woo Lee, Jung-Hwan Choi | 2016-11-08 |
| 9407152 | Current regulation apparatus | Young Jong Kim, Hyun Sik Kim, Taek Soo Kim | 2016-08-02 |
| 9112420 | Current regulation apparatus | Young Jong Kim, Hyun Sik Kim, Taek Soo Kim | 2015-08-18 |
| 8981659 | Input voltage transfer apparatus for light emitting diode lighting system | Young Jong Kim, Sang Hyun Park, Sang Man Kim, Woo Chang Jung, Gwan-Bon Koo +1 more | 2015-03-17 |
| 8952624 | Light emitting diode lighting system | Young Jong Kim, Taek Soo Kim, Hyun Shik Kim | 2015-02-10 |
| 8710760 | Power supply apparatus for light emitting diode | Kyung Rae Cho | 2014-04-29 |
| 8049590 | Inverter transformer | Shin Cho | 2011-11-01 |
| 7973430 | Power supply | Jun Ho Park | 2011-07-05 |
| 7548437 | Switching mode power supply | Jin Ho Choi, Yong-Chul Ryu | 2009-06-16 |
| 7269038 | Vrms and rectified current sense full-bridge synchronous-rectification integrated with PFC | Sampat Shekhawat, Ronald H. Randall | 2007-09-11 |
| 7218532 | Switching mode power supply | Jin Ho Choi, Young Chul Ryu | 2007-05-15 |
| 7079404 | Switching mode power supply for low power operation | Jong-Woon Hong | 2006-07-18 |
| 7064968 | Control for a switching power supply having automatic burst mode operation | Jin Ho Choi | 2006-06-20 |
| 7054169 | Switched-mode power supply supporting burst-mode operation | Yong Jin Joo | 2006-05-30 |
| 7035122 | Switching power supply device and method | Jung-Won Kim | 2006-04-25 |
| 6927607 | Inverter driver and method | Jae Soon Choi, Jea-Gon Seo, Dong-Hee Kim | 2005-08-09 |
| 6845019 | Flyback converter | Jung-Won Kim | 2005-01-18 |
| 6593709 | Dual mode electronic dimmer | Sang-Woo Lee | 2003-07-15 |
| 6252783 | Switching power supply having a low power burst mode | Jung-Yul Yun | 2001-06-26 |
| 5684681 | Drive circiut of switching element for switching mode power supply device | — | 1997-11-04 |
| 5650924 | Electric power supply device for a monitor | — | 1997-07-22 |
| 5631811 | Auxiliary power supply device | — | 1997-05-20 |