Issued Patents All Time
Showing 1–25 of 56 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12306266 | Measuring DC link capacitance in power conversion systems | Zhongyuan Cheng, Yuan Xiao | 2025-05-20 |
| 11469685 | Filter and AFE power cell phase control | Zhituo Ni, Mehdi Narimani, Zhongyuan Cheng | 2022-10-11 |
| 11437938 | Systems and methods of multi-motor regenerative drive | Zhongyuan Cheng, Mehdi Narimani, Ahmed Hisham Abuelnaga | 2022-09-06 |
| 11362595 | Power converter pre-charge with line synchronization | Marius G. Chis, Zhong Y. Cheng | 2022-06-14 |
| 11342878 | Regenerative medium voltage drive (Cascaded H Bridge) with reduced number of sensors | Ahmed Hisham Abuelnaga, Mehdi Narimani, Zhongyuan Cheng | 2022-05-24 |
| 11211879 | Capacitor size reduction and lifetime extension for cascaded H-bridge drives | Ahmed Hisham Abuelnaga, Zhituo Ni, Mehdi Narimani, Zhongyuan Cheng | 2021-12-28 |
| 10924026 | Regenerative cascaded H bridge power supply | Sarah Badawi, Zhong Y. Cheng, Mehdi Narimani, Ye Zhang | 2021-02-16 |
| 10924025 | Regenerative cascaded H bridge power supply | Sarah Badawi, Zhong Y. Cheng, Mehdi Narimani, Ye Zhang | 2021-02-16 |
| 10651760 | Reduced semiconductor device power cell voltage drive | Zhong Y. Cheng, Ye Zhang | 2020-05-12 |
| 10389263 | Motor drive with silicon carbide MOSFET switches | Kevin Baumann, Richard A. Lukaszewski, Rangarajan M. Tallam, Lixiang Wei, Lee Gettelfinger +6 more | 2019-08-20 |
| 10389213 | Apparatus for reduced voltage stress on AC motors and cables | Yuan Xiao, Lixiang Wei, James A. Ulrich | 2019-08-20 |
| 10305368 | Method and apparatus for bypassing Cascaded H-Bridge (CHB) power cells and power sub cell for multilevel inverter | Yuan Xiao, Lixiang Wei, Zhongyuan Cheng | 2019-05-28 |
| 9923469 | Motor drive filter damping | Yuan Xiao, Zhongyuan Cheng, Lixiang Wei | 2018-03-20 |
| 9912221 | Method and apparatus for bypassing cascaded h-bridge (CHB) power cells and power sub cell for multilevel inverter | Yuan Xiao, Lixiang Wei, Zhongyuan Cheng | 2018-03-06 |
| 9831846 | Power conversion system | Zhongyuan Cheng | 2017-11-28 |
| 9812990 | Spare on demand power cells for modular multilevel power converter | Zhongyuan Cheng | 2017-11-07 |
| 9787212 | Motor drive with silicon carbide MOSFET switches | Kevin Baumann, Richard A. Lukaszewski, Rangarajan M. Tallam, Lixiang Wei, Lee Gettelfinger +6 more | 2017-10-10 |
| 9748862 | Sparse matrix multilevel actively clamped power converter | Zhongyuan Cheng | 2017-08-29 |
| 9627994 | Cascaded H-bridge (CHB) inverter level shift PWM with rotation | Thomas A. Nondahl, Jingbo Liu, Zhongyuan Cheng | 2017-04-18 |
| 9559541 | Modular multilevel converter and charging circuit therefor | Zhongyuan Cheng, Bin Wu, Kai Tian, David Dewei Xu | 2017-01-31 |
| 9425705 | Method and apparatus for bypassing cascaded H-bridge (CHB) power cells and power sub cell for multilevel inverter | Yuan Xiao, Lixiang Wei, Zhongyuan Cheng | 2016-08-23 |
| 9372172 | Systems and methods for detecting partial discharge in electrical components | Zhongyuan Cheng, Catalin Florin Gemanaru, Robert N. Bickford | 2016-06-21 |
| 9362839 | Power converter with common mode voltage reduction | Lixang Wei, Zhongyuan Cheng, Yuan Xiao | 2016-06-07 |
| 9325252 | Multilevel converter systems and sinusoidal pulse width modulation methods | Mehdi Narimani, Bin Wu, Zhongyuan Cheng | 2016-04-26 |
| 9304111 | Systems and methods for detecting partial discharge in electrical components | Zhongyuan Cheng, Catalin Florin Gemanaru, Robert N. Bickford | 2016-04-05 |