Brushless dc motor

Details Brushless dc motor Brushless dc motor

1981-07-20

1983-09-20

Truhe, J. V.

Electricity: motive power systems

Switched reluctance motor commutation control

318138, H02K 2900

Patent

active

044058853

ABSTRACT:
A three-phase brushless dc motor using two position detecting elements to obtain the signal necessary for sequentially energizing the motor and capable of obtaining one reference pulse signal for every rotation of the motor, the reference pulse signal being used for phase detection of the motor. More particularly, the present invention allows the two position detecting elements to be disposed radially in the same direction and on the same plate so as to reduce mounting errors between the two position detecting elements, thereby improving the performance of the resulting brushless dc motor and reducing its manufacturing costs.

REFERENCES:
patent: 4074173 (1978-02-01), Janssen
patent: 4080553 (1978-03-01), Lyman
patent: 4242608 (1980-12-01), Ishigaki et al.

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