Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5936377 | Method and apparatus for correction of the flux direction of the modelled flux in a field-oriented rotating field-machine without any sensors, down to zero frequency | André Jean Adolf Vandenput | 1999-08-10 |
| 4764712 | Method and apparatus for operating a field-oriented rotating-field machine supplied by a controlled converter | Leonhard Reng | 1988-08-16 |
| 4689732 | Method and apparatus to operate an intermediate circuit converter with current rise limitation | — | 1987-08-25 |
| 4638673 | Method and apparatus for determining the torque of a torque generator | — | 1987-01-27 |
| 4629961 | Method and apparatus for stabilizing the locus of a vector formed by integration | — | 1986-12-16 |
| 4626761 | Method and apparatus for determining the flux vector of a rotating field machine | — | 1986-12-02 |
| 4593240 | Method and apparatus for determining the flux vector of a rotating-field machine from the stator current and the stator voltage, and the application thereof | — | 1986-06-03 |
| 4454461 | Apparatus for the control of a salient-pole machine | Theodor Salzmann | 1984-06-12 |
| 4447787 | Device for the field-oriented operation of a converter-fed asynchronous machine | Guenter Schwesig | 1984-05-08 |
| 4441065 | Method and apparatus for determining the rotor resistance of an asynchronous machine | Karl Bayer | 1984-04-03 |
| 4423367 | Device for determining the parameter values for stator resistance, principal inductance and leakage inductance of an asynchronous machine | Leonhard Reng | 1983-12-27 |
| 4388577 | Rotating field machine drive | Theodor Salzmann | 1983-06-14 |
| 4338559 | Load state control for an asynchronous machine fed by a converter | Leonhard Reng | 1982-07-06 |
| 4335444 | Multiple pulse-width multiplier | — | 1982-06-15 |
| 4306296 | Converter for changing Cartesian vector variables into polar vector variables | — | 1981-12-15 |
| 4250559 | Coordinate converter for changing polar vector variable into Cartesian vector variables | — | 1981-02-10 |