Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11646575 | Direct current hybrid circuit breaker with reverse biased voltage source | Yuan Li, Qichen Yang, Sanghun Kim, Michael Steurer | 2023-05-09 |
| 11456659 | Single transformer-based gate driver | Hui Li | 2022-09-27 |
| 11424093 | Direct current hybrid circuit breaker with reverse biased voltage source | Michael Steurer | 2022-08-23 |
| 11146164 | Single transformer-based gate driver | Hui Li | 2021-10-12 |
| 10476269 | Method for independent real and reactive power flow control using locally available parameters | Shuitao Yang, Deepak Gunasekaran | 2019-11-12 |
| 10033263 | System and method for optimizing fundamental frequency modulation for a cascaded multilevel inverter | Shuitao Yang | 2018-07-24 |
| 9438228 | High efficiency gate drive circuit for power transistors | Junming Zhang, Zhiqian Chen | 2016-09-06 |
| 9294003 | Transformer-less unified power flow controller | — | 2016-03-22 |
| 7253574 | Effective switching frequency multiplier inverter | Gui-Jia Su | 2007-08-07 |
| 7130205 | Impedance source power converter | — | 2006-10-31 |
| 7126833 | Auxiliary quasi-resonant dc tank electrical power converter | — | 2006-10-24 |
| 7040391 | Low harmonic diode clamped converter/inverter | John M. Leuthen | 2006-05-09 |
| 6370050 | Isolated and soft-switched power converter | Donald J. Adams | 2002-04-09 |
| RE37126 | Multilevel cascade voltage source inverter with seperate DC sources | Jih-Sheng Lai | 2001-04-03 |
| 6111770 | Auxiliary resonant DC tank converter | — | 2000-08-29 |
| 6075350 | Power line conditioner using cascade multilevel inverters for voltage regulation, reactive power correction, and harmonic filtering | — | 2000-06-13 |
| 5710698 | Delta connected resonant snubber circuit | Jih-Sheng Lai, Robert W. Young, Sr., George W. Ott, Jr. | 1998-01-20 |
| 5644483 | Voltage balanced multilevel voltage source converter system | Jih-Sheng Lai | 1997-07-01 |
| 5642275 | Multilevel cascade voltage source inverter with seperate DC sources | Jih-Sheng Lai | 1997-06-24 |