Electricity: motive power systems – Reciprocating or oscillating motor – Energizing winding circuit control
Patent
1986-10-15
1988-05-10
Ro, Bentsu
Electricity: motive power systems
Reciprocating or oscillating motor
Energizing winding circuit control
318254, 318439, H02K 2910
Patent
active
047438134
ABSTRACT:
The commutation of the motor which has no commutator is by electronic commutation, the excitation being carried out by p pairs of permanent magnets (12) carried by the rotor (10). The powering of the winding (6,6') of the stator is controlled by an encoder (19, 20) synchronized with the rotor (10). The electronic commutation circuit includes an odd number of sensors detecting the angular position of the rotor (10). The number of connection terminals of the winding to which the supply voltage is selectively applied is equal to the number of sensors or to a multiple of this number and the number of switchings per complete revolution of the rotor is equal to the number of sensors multiplied by the number of pairs of poles (12). During each switching, the connection between one of the terminals of the voltage source and at least one of the connection terminals is maintained. The mode of commutation is automatically changed according to the requirements of the motor load.
REFERENCES:
patent: 4211962 (1980-07-01), Grunleitner et al.
patent: 4568862 (1986-02-01), Tassinario
patent: 4629948 (1986-12-01), Tassinario
Mavilor Systemes S.A.
Ro Bentsu
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