Electricity: motive power systems – Switched reluctance motor commutation control
Patent
1993-04-29
1995-01-03
Ro, Bentsu
Electricity: motive power systems
Switched reluctance motor commutation control
318138, 318431, 318471, H02P 602
Patent
active
053789679
ABSTRACT:
The negative temperature dependency of the torque ripple correction capability of a known drive circuit is offset by making the amplitude of input voltage signals applied to a m-differential amplifier of the drive circuit positively temperature-dependent to improve the overall torque ripple correction capability of the circuit so that deteriorated torque ripples at low temperature and increase in the level of reactive currents at high temperature may be effectively eliminated. Moreover, since temperature induced deformation of waveforms of electric currents to be carried to soft switching coils of the drive circuit is minimized, a too rapid switching speed at low temperature is avoided to suppress generation of electric as well as mechanical noises, while too dull waveforms of electric currents at high temperature are also eliminated.
REFERENCES:
patent: 4051420 (1977-09-01), Tanikoshi
patent: 4070606 (1978-01-01), Morozumi et al.
patent: 4403174 (1983-09-01), Miyazaki et al.
patent: 4442386 (1984-04-01), Uchida et al.
patent: 4449081 (1984-05-01), Doemen
patent: 4472666 (1984-09-01), Akeda et al.
patent: 4626751 (1986-12-01), Doemen
patent: 4924156 (1990-05-01), Muller
patent: 4987352 (1991-01-01), Ishii
patent: 5038083 (1991-08-01), Muller
patent: 5043642 (1991-08-01), Ohi
Michael Oppenheimer "In IC Form, Hall-Effect Devices Can Take On Many New Applications", Electronics, Aug. 2, 1971 pp. 46-49.
"Circuit of the Day", Components Report XII (1977) No. 4, pp. 140-142.
Ro Bentsu
Sankyo Seiki Mfg. Co. Ltd.
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