Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10848075 | Reactive AFE power control | Ahmed S. Mohamed Sayed Ahmed, Zhendong Zhang, Sang Woo Nam | 2020-11-24 |
| 10811990 | Multi-segment and nonlinear droop control for parallel operating active front end power converters | Ahmed S. Mohamed Sayed Ahmed, Lixiang Wei, Nirav Patel, Sang Woo Nam | 2020-10-20 |
| 10680547 | Suppressing resonance in ultra long motor cable | Yuan Xiao, Ye Zhang, Richard L. Piekarz | 2020-06-09 |
| 10523128 | Reactive AFE power control | Ahmed S. Mohamed Sayed Ahmed, Zhendong Zhang, Sang Woo Nam | 2019-12-31 |
| 9985565 | Sensorless motor drive vector control with feedback compensation for filter capacitor current | Semyon Royak, Jingya Dai, Jingbo Liu, Thomas A. Nondahl | 2018-05-29 |
| 9800190 | Control of motor drives with output sinewave filter capacitor current compensation using sinewave filter transfer function | Semyon Royak, Jingbo Liu, Jingya Dai, Thomas A. Nondahl, Peter B. Schmidt | 2017-10-24 |
| 9716460 | Method and apparatus for speed reversal control of motor drive | Thomas A. Nondahl, Jingbo Liu, Semyon Royak, Peter B. Schmidt, Jingya Dai | 2017-07-25 |
| 9595896 | Methods and systems for sensorless closed loop motor speed and torque control | Semyon Royak, Thomas A. Nondahl, Jingya Dai, Thomas M. Cahill, Robert J. Breitzmann +2 more | 2017-03-14 |
| 9490738 | Sensorless motor drive vector control | Thomas A. Nondahl, Jingbo Liu, Semyon Royak, Peter B. Schmidt, Jingya Dai | 2016-11-08 |
| 9374028 | Transition scheme for position sensorless control of AC motor drives | Thomas A. Nondahl, Jingbo Liu, Peter B. Schmidt, Semyon Royak, Jingya Dai | 2016-06-21 |
| 9294019 | Method and apparatus for controlling power converter with inverter output filter | Jingbo Liu, Thomas A. Nondahl, Peter B. Schmidt, Semyon Royak, Jingya Dai | 2016-03-22 |