Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11373786 | Bus bar assembly with integrated surge arrestor | Paul J. Rollmann, Andrew Allen Rockhill | 2022-06-28 |
| 11159042 | Power systems and methods using voltage waveform signaling | Michael P. Nowak, Vijay Bhavaraju, George Arthur Navarro | 2021-10-26 |
| 11056860 | Bus structure for parallel connected power switches | Andrew Allen Rockhill, Paul J. Rollmann | 2021-07-06 |
| 10741313 | Bus bar assembly with integrated surge arrestor | Paul J. Rollmann, Andrew Allen Rockhill | 2020-08-11 |
| 10447072 | Power systems and methods using voltage waveform signaling | Michael P. Nowak, Vijay Bhavaraju, George Arthur Navarro | 2019-10-15 |
| 10020802 | Methods and systems for operating hybrid power devices using driver circuits that perform indirect instantaneous load current sensing using stored I-V characteristics | Tiefu Zhao, Jiangbiao He, Mengbin Ben Yang | 2018-07-10 |
| 9941700 | Utility scale renewable energy system controls for ramp-rate, voltage, and frequency management | Vijay Bhavaraju, Qiang Fu, Christopher Scott Thompson | 2018-04-10 |
| 9722581 | Methods and systems for operating hybrid power devices using driver circuits that perform indirect instantaneous load current sensing | Tiefu Zhao, Jiangbiao He, Mengbin Ben Yang | 2017-08-01 |
| 9608440 | Methods and apparatus for determining power distribution system topology using disturbance detection | Luis R. Pereira, Huaqiang Li, Michael J. Harrison | 2017-03-28 |
| 9595889 | System and method for single-phase and three-phase current determination in power converters and inverters | Huaqiang Li, Xiaoling Li | 2017-03-14 |
| 9425702 | System and method for safe switching in an AC-to-AC converter | Bruno Lequesne, Qiang Fu, Vijay Bhavaraju | 2016-08-23 |
| 9298204 | AC to AC converter and method of operation thereof for soft starting motors and other applications | Zeljko Radomir Jankovic, Vijay Bhavaraju, Bruno Lequesne | 2016-03-29 |
| 9203326 | Feed forward control for a cyclo-converter | Michael J. Harrison, Huaqiang Li | 2015-12-01 |
| 9166469 | System for optimizing switching dead-time and method of making same | Huaqiang Li, Xiaoling Li, Leo Sun | 2015-10-20 |
| 9160161 | System and method for ground fault detection and protection in adjustable speed drives | Huaqiang Li | 2015-10-13 |
| 9143031 | Power factor control of a cyclo-converter | Michael J. Harrison, Huaqiang Li | 2015-09-22 |
| 9036373 | Closed loop control of a cyclo-converter | Michael J. Harrison, Huaqiang Li, Tomasz Kotula | 2015-05-19 |
| 8947030 | Low switch count AC-to-AC power converter | Zeljko Radomir Jankovic, Bruno Lequesne, Vijay Bhavaraju | 2015-02-03 |
| 8850237 | Data processing system power distribution using UPS units selectively coupled to loads by reserve bus based on the load states | Luis R. Pereira, Kevin Lee, Michael P. Nowak | 2014-09-30 |