Driving arrangement for a drive motor

Details Driving arrangement for a drive motor Driving arrangement for a drive motor

1987-09-25

1988-10-11

Smith, Jr., David

Electricity: motive power systems

Reciprocating or oscillating motor

Energizing winding circuit control

318254, 318722, 318724, H02P 540, H02K 1910

Patent

active

047774142

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.

REFERENCES:
patent: 3775649 (1973-11-01), Bayer et al.
patent: 4023083 (1977-05-01), Plunkett
patent: 4208621 (1980-06-01), Hipkins et al.

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