DE2844543
The motor has a permanent magnet rotor and stator windings connectable through a commutation transistor to a DC voltage source. There is a rotor position pickup operating a selector circuit for the commutation transistors and at least one free running circuit for the stator windings. There is a curr...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | The motor has a permanent magnet rotor and stator windings connectable through a commutation transistor to a DC voltage source. There is a rotor position pickup operating a selector circuit for the commutation transistors and at least one free running circuit for the stator windings. There is a current measuring resistor providing the motor current actual value for a two-step current controller controlling the motor current transistor; a braking current transistor limiting the braking current, connected in series with the stator windings; and a braking current measurement resistor for the braking current controller. |
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