Issued Patents All Time
Showing 1–24 of 24 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12316222 | DC-DC conversion device having coupling inductor | Jung Un Park, Ja-Chun Koo, Ji Hun Bae, Nayoung Lee, Jae Dong Choi | 2025-05-27 |
| 11881758 | Display device controlling the switching device to perform modulation control of output voltage of transformer and method for controlling the display device | Du Hee Jang, Sang Hoon Lee, Ka San Ha | 2024-01-23 |
| 10958182 | Transformer and LLC resonant converter having the same | Sang Keun Ji, Cheol-Wan Park, Dong Kyun Ryu, Heung Gyoon Choi | 2021-03-23 |
| 10630191 | Transformer and LLC resonant converter having the same | Sang Keun Ji, Cheol-Wan Park, Dong Kyun Ryu, Heung Gyoon Choi | 2020-04-21 |
| 10601326 | Low voltage stress flyback converter with continuous input current | Na Young LEE, Jae Dong Choi, Ju Young Lee | 2020-03-24 |
| 10541619 | LLC resonant converter and electronic device | Sang Keun Ji, Hyun-su Gu, Hyo-hun Kim, Dong Kyun Ryu, Heung Gyoon Choi | 2020-01-21 |
| 9543843 | Power supply device | Tae Won Heo, Hwan Cho, Jeong Gyu Lim, Young Seung Noh, Bo-Mi Lee | 2017-01-10 |
| 9450495 | Single stage forward-flyback converter and power supply apparatus for light emitting diode | Byoung Woo Ryu, Heung Gyoon Choi, Keun Wook LEE, Hong Sun Park | 2016-09-20 |
| 9106147 | Universal power supply apparatus | Moon Hwan Keum, Young Seung Noh, Bo-Mi Lee | 2015-08-11 |
| 9058161 | Universal power supplying apparatus and universal power supplying method | Young Seung Noh, Moon Hwan Keum, Bo-Mi Lee | 2015-06-16 |
| 8810213 | Power control method and apparatus for tracking maximum power point in a photovoltaic system | Yong Woo Kim, Sang Keun Ji, Sung Soo Hong, Chung Wook Roh | 2014-08-19 |
| 8508144 | Power supply and display device including the same | Sung Soo Hong, Mi Ran Baek, Chung Wook Roh, Hee Seung Kim, Jae Sun Won +4 more | 2013-08-13 |
| 8446103 | Lamp driver | Sung Soo Hong, Chung Wook Roh, Sang Gab Park, Young Seung Roh, Hyo Joong An +2 more | 2013-05-21 |
| 8373354 | Backlight unit driver | Sung Soo Hong, Chung Wook Roh, Sang Gab Park, Kyu-Min Park, Young Seung Roh +2 more | 2013-02-12 |
| 8305058 | Power supply having an improved maximum power point tracking function | Jin Wook Kim, Sung Soo Hong, Chung Wook Roh, Jong Sun Kim, Sang Hun Lee +3 more | 2012-11-06 |
| 8274805 | High voltage power supply | Jin Wook Kim, Sug Chin Sakong, Sung Soo Hong, Chung Wook Roh, Jong Sun Kim +3 more | 2012-09-25 |
| 8120278 | LED driving circuit | Heung Gyoon Choi, Sung Soo Hong, Chung Wook Roh, Sang Ho Cho, Sang Hyun Lee +3 more | 2012-02-21 |
| 8107262 | Variable switching frequency type power supply | Jae Sun Won, Sung Soo Hong, Chung Wook Roh, Jong Sun Kim, Dong Seong Oh +4 more | 2012-01-31 |
| 7940032 | Power supply having maximum power point tracking function | Jin Wook Kim, Sung Soo Hong, Chung Wook Roh, Jong Sun Kim, Jae Sun Won +3 more | 2011-05-10 |
| 7915757 | Multi-output DC/DC converter | Jong Hae Kim, Sug Chin Sakong, Sung Soo Hong, Chung Wook Roh, Jong Sun Kim +1 more | 2011-03-29 |
| 7663322 | Backlight driving system for liquid crystal display | Jin Wook Kim, Dong Seong Oh, Jong Duck Kim, Sug Chin Sakong, Sung Soo Hong +5 more | 2010-02-16 |
| 7616086 | Integrated type transformer | Gie Hyoun Kweon, Sug Chin Sakong, Chung Wook Roh, Sung Soo Hong, Jong Rak Kim | 2009-11-10 |
| 7612738 | Plasma display device, apparatus for driving the same, and method of driving the same | Hak-Cheol Yang, Joon-Yeon Kim, Jong-Ki Choi, Hyun-Gu Heo, Yong Jin JEONG +5 more | 2009-11-03 |
| 7505289 | Flyback DC/DC converter using clamp diode | Don Sik Kim, Sug Chin Sakong, Sung Soo Hong, Chung Wook Roh, Young Seung Roh +1 more | 2009-03-17 |