Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9780771 | Gate driving circuit including constant current sources, and switching apparatus and power supply apparatus having the same | Sang Hyun Cha, Deuk Hee Park, Joong Ho Choi, Je Hyeon YU, Hyeon Seon Yu +1 more | 2017-10-03 |
| 9755502 | Start-up circuit and power device using the same | Sang Hyun Cha, Soo Hyun Moon, Hye Jin Lee, Joong Ho Choi, Ji Hwan Kim +1 more | 2017-09-05 |
| 9301353 | Light emitting diode driving apparatus | Deuk Hee Park, Sang Hyun Cha | 2016-03-29 |
| 9287777 | Average current controller, average current control method and buck converter using the average current controller | Jong-Tae Hwang, Chan Woo Park, Sang Hyun Cha, Deuk Hee Park | 2016-03-15 |
| 9232580 | Voltage control circuit for dimmer and dimming method using the same | Je Hyeon YU, Chang Seok Lee, Chan Woo Park | 2016-01-05 |
| 9204506 | Light emitting diode driving apparatus | Sang Hyun Cha, Je Hyeon YU | 2015-12-01 |
| 9173265 | Light emitting diode driving apparatus and light emitting diode lighting apparatus | Deuk Hee Park, Chan Woo Park, Jong-Tae Hwang, Je Hyeon YU, Soo Hyun Moon +3 more | 2015-10-27 |
| 9083248 | PWM control circuit, flyback converter and method for controlling PWM | Deuk Hee Park, Sang Hyun Cha, Jae Shin Lee, Chang Seok Lee | 2015-07-14 |
| 9066399 | Illumination driving apparatus for light emitting diode and method thereof | Deuk Hee Park, Joong Ho Choi, Sang Hyun Cha, Jae Shin Lee, Chang Seok Lee | 2015-06-23 |
| 9024531 | Apparatus for driving light emitting diode | Jong-Tae Hwang, Deuk Hee Park, Jae Shin Lee, Sang Hyun Cha | 2015-05-05 |
| 8994281 | Light emitting diode driving apparatus | Jong-Tae Hwang, Deuk Hee Park, Sang Hyun Cha, Chang Seok Lee | 2015-03-31 |
| 8981658 | Apparatus for driving light emitting diode | Je Hyeon YU, Sang Hyun Cha, Deuk Hee Park | 2015-03-17 |
| 8981649 | Light emitting diode driving apparatus | Jong-Tae Hwang, Chan Woo Park, Je Hyeon YU, Chang Seok Lee | 2015-03-17 |
| 8975927 | Gate driver | Jong-Tae Hwang, Deuk Hee Park, Sang Hyun Cha, Chang Seok Lee | 2015-03-10 |
| 8975824 | PWM driving circuit and PWM driving method | Deuk Hee Park, Sang Hyun Cha, Jae Shin Lee, Chang Seok Lee | 2015-03-10 |
| 8917025 | Light emitting diode driving apparatus | Deuk Hee Park, Sang Hyun Cha, Jae Shin Lee, Chang Seok Lee | 2014-12-23 |