Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10548201 | Switch controller, power supply device comprising the same, and driving method of the power supply device | Young-Je Lee, Jae Yong Lee, Yoon-Woong Chung, Ji Hoon Jang | 2020-01-28 |
| 10321540 | Switch controller, power supply device comprising the same, and driving method of the power supply device | Young-Je Lee, Jae Yong Lee, Yoon-Woong Chung, Ji Hoon Jang | 2019-06-11 |
| 9325255 | Switch controller, switch control method, and power supply device comprising the switch controller | Seung-Uk YANG, In-Ki PARK, Hyun-Chul EOM | 2016-04-26 |
| 9001533 | Feedback circuit and power supply device including the same | In-Ki PARK, Won-Seok Kang | 2015-04-07 |
| 9001541 | Switch control circuit, power factor corrector including the same, and driving method of the power factor corrector | Hyun-Chul EOM, Seunguk YANG, Young Bae Park | 2015-04-07 |
| 8957596 | Preheating control device, lamp driving device including the same, and preheating control method | Sang-Cheol Her | 2015-02-17 |
| 8933674 | Switch controller, switch control method, and power supply device comprising the switch controller | Young-Je Lee, Jae Yong Lee, Ji Hoon Jang | 2015-01-13 |
| 8873206 | Switch control circuit, switch controlling method, and power supply device using the switch control circuit | Young-Je Lee, Seung Woo Hong, Jae Yong Lee | 2014-10-28 |
| 8841850 | Dimming angle sensing circuit and driving method thereof | Hyun-Chul EOM, Seunguk YANG | 2014-09-23 |
| 8816592 | Active damper and driving method thereof | Hyun-Chul EOM, Seunguk YANG | 2014-08-26 |
| 8803434 | Apparatus for controlling bleed switch, power supply, and method for driving power supply | Seung Woo Hong, Young-Je Lee, Jae Yong Lee | 2014-08-12 |
| 8737101 | Switch driving circuit and switch driving method | In-Kuk Baek | 2014-05-27 |
| 8634211 | Switch control device, power supply device comprising the same and switch control method | Young-Je Lee | 2014-01-21 |
| 8633660 | Control device, LED light emitting device including the same, and control method | Min Ho Jung, Sung-Yun PARK, Dong Hwan Kim | 2014-01-21 |
| 8415891 | Lamp ballast circuit and driving method thereof | Young-Sik Lee | 2013-04-09 |
| 8193718 | Diagnosis circuit apparatus and lamp ballast circuit using the same | Young-Sik Lee | 2012-06-05 |
| 7911210 | Diagnosis device, diagnosis method, and lamp ballast circuit using the same | Jin Ho Choi, Sang-Cheol Her | 2011-03-22 |
| 7531966 | Lamp ballast circuit | Jong-Tae Hwang, Jin-Sung Kim, Jin Ho Choi | 2009-05-12 |
| 7486029 | Circuit for detecting end of life of fluorescent lamp | Young-Sik Lee | 2009-02-03 |