Driver circuit for a d.c. motor without commutator

Details Driver circuit for a d.c. motor without commutator Driver circuit for a d.c. motor without commutator

1990-10-26

1991-08-06

Ro, Bentsu

Electricity: motive power systems

Switched reluctance motor commutation control

318138, H02P 602

Patent

active

050380834

ABSTRACT:
A method is disclosed for the low-loss regulation of a d.c. motor without commutator and of a semiconductor circuit in which, during a commutation phase at reduced motor power or rpm as given by a position indicator, the end transistors or one end transistor initially operates temporarily as a switch and thereafter temporarily as an analog amplifier element. During the analog period, a current is available which changes slowly according to a ramp function.

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