Issued Patents All Time
Showing 26–50 of 100 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9973137 | Active front end power converter with boost mode derating to protect filter inductor | Yogesh Patel | 2018-05-15 |
| 9960723 | Motor drive with resonance detection and impedance computation | Shaofeng Zhang, Haihui Lu, Yogesh Patel, Ahmed Mohamed Sayed Ahmed, Richard A. Lukaszewski | 2018-05-01 |
| 9923469 | Motor drive filter damping | Yuan Xiao, Zhongyuan Cheng, Navid R. Zargari | 2018-03-20 |
| 9912221 | Method and apparatus for bypassing cascaded h-bridge (CHB) power cells and power sub cell for multilevel inverter | Navid R. Zargari, Yuan Xiao, Zhongyuan Cheng | 2018-03-06 |
| 9837924 | Precharge apparatus for power conversion system | Zeljko Radomir Jankovic | 2017-12-05 |
| 9819255 | LCL filter resonance mitigation technique for voltage source converters | Yogesh Patel | 2017-11-14 |
| 9800134 | Motor drive with LCL filter inductor with built-in passive damping resistor for AFE rectifier | Yogesh Patel | 2017-10-24 |
| 9787213 | Power cell bypass method and apparatus for multilevel inverter | Yuan Xiao, Haihui Lu, Douglas B. Weber | 2017-10-10 |
| 9787212 | Motor drive with silicon carbide MOSFET switches | Kevin Baumann, Richard A. Lukaszewski, Rangarajan M. Tallam, Lee Gettelfinger, Garron Morris +6 more | 2017-10-10 |
| 9684026 | Apparatus and method for automatic ground fault location determination in high resistance grounded motor drive system | Jeffrey D. McGuire, Jiangang Hu, Zhijun Liu | 2017-06-20 |
| 9667128 | Power converter resonance detection apparatus and method | Yogesh Patel | 2017-05-30 |
| 9654021 | Multifunction power converter with option for integrated magnetics | Robert M. Michalski, Yogesh Patel, Bruce W. Weiss, Brian P. Brown | 2017-05-16 |
| 9653984 | Filter capacitor degradation detection apparatus and method | Yogesh Patel, Russel J. Kerkman | 2017-05-16 |
| 9645194 | Systems and methods for testing motor drives | Yogesh Patel | 2017-05-09 |
| 9625519 | Drive failure protection | Yuan Xiao, Doyle F. Busse | 2017-04-18 |
| 9612269 | System for detection of a ground fault in a high resistance ground network | Zhijun Liu, Brian P. Brown, David W. Kirschnik, Russ J. Kerkman, Richard A. Lukaszewski +2 more | 2017-04-04 |
| 9604543 | Apparatus and method for automatic ground fault location determination in high resistance grounded motor drive system | Jiangang Hu, Zhijun Liu, Jeffrey D. McGuire | 2017-03-28 |
| 9590547 | Double fed induction generator (DFIG) converter and method for improved grid fault ridethrough | Haihui Lu, Zhenhuan Yuan, Russel J. Kerkman, Richard A. Lukaszewski, Ahmed Mohamed Sayed Anmed | 2017-03-07 |
| 9553533 | DC pre charge circuit | Bruce W. Weiss, Doyle F. Busse, Jeremy J. Keegan, Michael Loth, Rangarajan M. Tallam +1 more | 2017-01-24 |
| 9461559 | Active front end power converter with boost mode derating to protect filter inductor | Yogesh Patel | 2016-10-04 |
| 9425705 | Method and apparatus for bypassing cascaded H-bridge (CHB) power cells and power sub cell for multilevel inverter | Navid R. Zargari, Yuan Xiao, Zhongyuan Cheng | 2016-08-23 |
| 9389263 | Filter capacitor degradation identification using measured and expected voltage | Christian S. Sartler, Yogesh Patel, Mark G. Phillips | 2016-07-12 |
| 9383399 | HRG ground fault detector and method using phase inputs to generate a simulated neutral voltage | Jiangang Hu, Jeffrey D. McGuire | 2016-07-05 |
| 9331487 | Method and apparatus for islanding detection for grid tie converters | Zhenhuan Yuan, Shaofeng Zhang, Haihui Lu, Russel J. Kerkman, Richard A. Lukaszewski +2 more | 2016-05-03 |
| 9318976 | Adjustable PWM method to increase low speed starting torque and inverter voltage measurement accuracy | Jeffrey D. McGuire, Timothy M. Rowan | 2016-04-19 |