Issued Patents All Time
Showing 1–25 of 82 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10527661 | Calculating a load resistance | David Leggate, Brian J. Seibel | 2020-01-07 |
| 10250161 | Adaptive harmonic elimination compensation for voltage distortion elements | David Leggate | 2019-04-02 |
| 9998030 | Converter lifetime improvement method for doubly fed induction generator | Lixiang Wei, Richard A. Lukaszewski, Haihui Lu, Zhenhuan Yuan | 2018-06-12 |
| 9973103 | System for power conversion with reactive power compensation | Prathamesh R. Vadhavkar, Brian J. Seibel | 2018-05-15 |
| 9651592 | Impedance detector apparatus and method | Ahmed Mohamed Sayed Ahmed, Brian J. Seibel, Shiv Kumar Gupta, Prathamesh R. Vadhavkar | 2017-05-16 |
| 9653984 | Filter capacitor degradation detection apparatus and method | Yogesh Patel, Lixiang Wei | 2017-05-16 |
| 9590547 | Double fed induction generator (DFIG) converter and method for improved grid fault ridethrough | Haihui Lu, Zhenhuan Yuan, Lixiang Wei, Richard A. Lukaszewski, Ahmed Mohamed Sayed Anmed | 2017-03-07 |
| 9584043 | Inverter phase current reconstruction apparatus and methods | Zhendong Zhang, Takayoshi Matsuo, David Leggate, Timothy M. Rowan, Bing Li | 2017-02-28 |
| 9535133 | Industrial system phase sag detection | Ahmed Mohamed Sayed Ahmed, Brian J. Seibel | 2017-01-03 |
| 9374021 | PWM output voltage measurement apparatus and method | Rangarajan M. Tallam, Doyle F. Busse, Brian P. Brown | 2016-06-21 |
| 9331487 | Method and apparatus for islanding detection for grid tie converters | Zhenhuan Yuan, Shaofeng Zhang, Haihui Lu, Lixiang Wei, Richard A. Lukaszewski +2 more | 2016-05-03 |
| 9294005 | Method and apparatus for detecting AFE filter capacitor degradation | Rangarajan M. Tallam | 2016-03-22 |
| 9270286 | Phase lock loop with cascade tracking filters for synchronizing an electric grid | Ahmed Mohamed Sayed Ahmed, Brian J. Seibel | 2016-02-23 |
| 9124245 | Adaptive online filter for DC offset elimination | Ahmed Mohamed Sayed Ahmed, Brian J. Seibel | 2015-09-01 |
| 9048755 | Adjustable speed drive lifetime improvement system | Lixiang Wei, Richard A. Lukaszewski | 2015-06-02 |
| 9041234 | Double fed induction generator (DFIG) converter and method for improved grid fault ridethrough | Haihui Lu, Zhenhuan Yuan, Lixiang Wei, Richard A. Lukaszewski, Ahmed S. Mohamed Sayed Ahmed | 2015-05-26 |
| 8988060 | Power control system and method | Carlos Daniel Rodriguez-Valdez | 2015-03-24 |
| 8964427 | Adaptive online filter for DC offset elimination | Ahmed S. Mohamed Sayed Ahmed, Brian J. Seibel | 2015-02-24 |
| 8825421 | Digital implementation of a tracking filter | Brian J. Seibel, Carlos Daniel Rodriquez-Valdez | 2014-09-02 |
| 8816729 | Phase-locked-loop with quadrature tracking filter for synchronizing an electric grid | Ahmed Mohamed Sayed Ahmed, Brian J. Seibel, Carlos Rodriguez Valdez | 2014-08-26 |
| 8736091 | Converter lifetime improvement method for doubly fed induction generator | Lixiang Wei, Richard A. Lukaszewski, Haihui Lu, Zhenhuan Yuan | 2014-05-27 |
| 8710782 | Parallel power inverter motor drive system | Rangarajan M. Tallam, Richard H. Radosevich, Alan J. Campbell | 2014-04-29 |
| 8704481 | Choke with current sensor | Carlos Rodriguez Valdez, Rangarajan M. Tallam | 2014-04-22 |
| 8704571 | Phase-locked-loop with quadrature tracking filter for synchronizing an electric grid | Ahmed Mohamed Sayed Ahmed, Brian J. Seibel, Carlos Rodriguez Valdez | 2014-04-22 |
| 8575915 | Power control system and method | Carlos Daniel Rodriguez-Valdez | 2013-11-05 |