Electricity: electrical systems and devices – Control circuits for electromagnetic devices – Systems for magnetizing – demagnetizing – or controlling the...
Patent
1997-03-06
2000-08-08
Fleming, Fritz
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
Systems for magnetizing, demagnetizing, or controlling the...
361139, H02K 1503
Patent
active
061010812
ABSTRACT:
A rotor magnet of a three-phase reluctance magnet motor is magnetized by coupling two of the three outer terminals (RS), and feeding a positioning current between the outer terminals RS and a third terminal (T) for positioning the rotor at a magnetizing position with reluctance torque. Then, rotor is kept from moving by holding the shaft of the rotor with the rotor positioned at the magnetized position. Next, the outer terminals RS are separated and magnetizing current is fed between the outer terminals R and S to magnetize the rotor magnet.
REFERENCES:
patent: 4748535 (1988-05-01), Arakawa et al.
patent: 5200729 (1993-04-01), Soeda et al.
patent: 5424902 (1995-06-01), Shida et al.
Patent Abstracts of Japan, unexamined applications, E field, vol. 6, No. 64, Apr. 23, 1982, p. 83 E 103 & JP-A-57 005 313 (Matsushita).
Asano Yoshinari
Honda Yukio
Ito Hiroshi
Kadoya Naoyuki
Murakami Hiroshi
Fleming Fritz
Matsushita Electric - Industrial Co., Ltd.
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