Speed control system for repulsion motor

Details Speed control system for repulsion motor Speed control system for repulsion motor

1999-02-10

2000-08-22

Masih, Karen

Electricity: motor control systems

Closed loop speed control system for dc motor with commutator

Armature control by digital or combined analog and digital...

318725, 318254, 318138, 318439, 318724, 318700, 318720, 318721, 318726, H02P 528

Patent

active

061084883

ABSTRACT:
A speed control system for a brushless repulsion motor of the type including a series of armature mounted switches for shorting circumferentially spaced armature coils, said system comprising: a digital counter on the armature for creating a repetitive succession of switch activating signals in a selected sequence at a given rate determined by the counting rate of the counter; means for activating the switches with the signals in the sequence and at the rate to control the speed of the armature; and, means for directing a reference pulse signal at a reference frequency to the counter to set the counting rate of the counter.

REFERENCES:
patent: 5686805 (1997-11-01), Haner
patent: 5767601 (1998-06-01), Uchiyam

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