Issued Patents All Time
Showing 25 most recent of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10650994 | Switching device arrangement | Sascha Bauer, Frank Ehrlich, Andreas Groiss, Rico Rademacher, Ingolf Reiher | 2020-05-12 |
| 10345795 | Systems and methods to enhance machine designs and production rate schedules for minimized energy cost | Robert H. Schmidt, Aderiano M. da Silva | 2019-07-09 |
| 10276317 | Snap-action drive and switching device having a snap-action drive | Hans-Peter Dambietz, Christian Dengler, Frank Ehrlich, Roland Monka, Ingolf Reiher +2 more | 2019-04-30 |
| 10158314 | Feedforward control of motor drives with output sinewave filter | Semyon Royak, Jingya Dai, Thomas A. Nondahl, Jingbo Liu, Robert J. Breitzmann | 2018-12-18 |
| 10020766 | Current control of motor drives with output sinewave filter | Semyon Royak, Robert J. Breitzmann, Jingbo Liu, Thomas A. Nondahl, Jingya Dai | 2018-07-10 |
| 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, Ehsan Al-Nabi | 2017-10-24 |
| 9774284 | Rotor position estimation apparatus and methods | Jingbo Liu, Thomas A. Nondahl, Takayoshi Matsuo, Timothy M. Rowan | 2017-09-26 |
| 9716460 | Method and apparatus for speed reversal control of motor drive | Thomas A. Nondahl, Jingbo Liu, Semyon Royak, Jingya Dai, Ehsan Al-Nabi | 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, Ehsan Al-Nabi, Jingya Dai | 2016-11-08 |
| 9374028 | Transition scheme for position sensorless control of AC motor drives | Thomas A. Nondahl, Jingbo Liu, Semyon Royak, Jingya Dai, Ehsan Al-Nabi | 2016-06-21 |
| 9312779 | Position sensorless open loop control for motor drives with output filter and transformer | Jingbo Liu, Thomas A. Nondahl, Semyon Royak | 2016-04-12 |
| 9294019 | Method and apparatus for controlling power converter with inverter output filter | Jingbo Liu, Thomas A. Nondahl, Semyon Royak, Jingya Dai, Ehsan Al-Nabi | 2016-03-22 |
| 9287812 | Method and apparatus for stability control of open loop motor drive operation | Thomas A. Nondahl, Jingbo Liu, Semyon Royak, Timothy M. Rowan | 2016-03-15 |
| 9124209 | Method and apparatus for controlling power converter with inverter output filter | Jingbo Liu, Thomas A. Nondahl, Semyon Royak | 2015-09-01 |
| 9054611 | Method and apparatus for stability control of open loop motor drive operation | Jingbo Liu, Thomas A. Nondahl, Semyon Royak | 2015-06-09 |
| 9054621 | Position sensorless open loop control for motor drives with output filter and transformer | Jingbo Liu, Thomas A. Nondahl, Semyon Royak | 2015-06-09 |
| 8497655 | Method and apparatus for estimating rotor position in a sensorless synchronous motor | Jingbo Liu, Semyon Royak, Mark M. Harbaugh, Thomas A. Nondahl | 2013-07-30 |
| 8330405 | Method and apparatus for increased current stability in a PWM drive | Semyon Royak, Mark M. Harbaugh, Thomas A. Nondahl, Jingbo Liu, Robert J. Breitzmann | 2012-12-11 |
| 8228013 | Method and apparatus for automatically identifying electrical parameters in a sensor-less PMSM | Jingbo Liu, Mark M. Harbaugh, Thomas A. Nondahl, Semyon Royak | 2012-07-24 |
| 8159168 | Rotor position estimator for an electrical machine | Jingbo Liu, Thomas A. Nondahl, Semyon Royak, Mark H. Harbaugh | 2012-04-17 |
| 7994444 | Apparatus for monitoring the state of an electrical switching device | Wojciech Olszewski | 2011-08-09 |
| 7944164 | Method and apparatus for identifying orientation of a stationary rotor in a sensor-less PMSM | Jingbo Liu, Thomas A. Nondahl, Semyon Royak, Mark M. Harbaugh | 2011-05-17 |
| 7915852 | Universal adaptive torque control for PM motors for field-weakening region operation | Semyon Royak, Mark M. Harbaugh, Robert J. Breitzmann, Thomas A. Nondahl, Jingbo Liu | 2011-03-29 |
| 7659683 | Resonant frequency identification | Zhengrong Li, Wei Qian, Sang Hoon Lee | 2010-02-09 |