Electricity: motive power systems – Switched reluctance motor commutation control
Patent
1993-04-29
1994-11-22
Wysocki, Jonathan
Electricity: motive power systems
Switched reluctance motor commutation control
318439, 318721, H02F 700
Patent
active
053672330
ABSTRACT:
A brushless motor operating apparatus includes a DC power source 1, a group 2 of semiconductor switching elements for passing/interrupting a current to an armature winding 4 of a brushless motor 3, a plurality of filter circuits 6 for waveform-processing induced voltages induced in the armature winding 4, a comparison circuit 7 for comparing outputs of the plurality of filter circuits 6 and a composite wave thereof, a control circuit 8 for making ON/OFF control of the semiconductor switching element group 2 in accordance with an output of the comparison circuit 7, the filter circuit 6 having a construction in which condensers 6c and 6e are connected behind and in series with a voltage divider circuit composed of a plurality of resistors 6a and 6b and an integrating circuit 6d is connected behind the condensers 6c and 6e, whereby the condensers 6c and 6e in the filter circuit 6 can be provided with ones having a low withstanding voltage, thereby making it possible to reduce the size and cost of the apparatus.
REFERENCES:
patent: 4651067 (1987-03-01), Ito et al.
patent: 4694210 (1987-09-01), Elliott et al.
patent: 4712050 (1987-12-01), Nagasawa et al.
patent: 4743815 (1988-05-01), Gee et al.
patent: 4780651 (1988-10-01), Nakano et al.
patent: 4983894 (1991-01-01), Oku et al.
Kenichi Iizuka, et al "Microcomputer Control for Sensorless Brushless Motor," IEEE Transactions on Industry Applications, vol. IA-21, No. 4, 1985, pp. 595-601.
Matsushita Electric - Industrial Co., Ltd.
Wysocki Jonathan
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