Driving arrangement for a drive motor
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United States of America Patent
Stats
-
Oct 11, 1988
Grant Date -
N/A
app pub date -
Sep 25, 1987
filing date -
Sep 26, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The disclosure is related to a driving arrangement for a drive motor which is provided with an electronic power stage (9) which is controlled by a current controller (13). During the commutation phase, a breakdown of the torque occurs in such drive motors due to the shape of the B-field current, so that the torque has a wavy shape. The torque breakdown can be counteracted by raising the load current in the commutation region. This raising of the load current during the commutation phase is achieved by the provision that the current reference value of the current controller (13) is increased correspondingly by means of an auxiliary voltage at the respective commutation instant.
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