Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5006775 | Method and apparatus for preventing a current collapse in a phase not participating in the commutation of a three-phase, block-current supplied synchronous machine | Jens Hamann | 1991-04-09 |
| 4998053 | Method and apparatus for reducing a current break in a leg that is not participating in the commutation of a three-phase block current fed synchronous machine | Jens Hamann | 1991-03-05 |
| 4937530 | Apparatus for monitoring phase voltages of a polyphase tachometer generator to detect phase failures | Ekkehard Reuss | 1990-06-26 |
| 4777414 | Driving arrangement for a drive motor | Albrecht Storath | 1988-10-11 |
| 4460860 | Method and apparatus for increasing the maximum speed of rotation of a synchronous machine with a given excitation field strength and terminal voltage | Günter Schwesig, Erich Voss, Hans-Hermann Zander | 1984-07-17 |