Electricity: motive power systems – Switched reluctance motor commutation control
Patent
1994-11-30
1996-12-17
Martin, David S.
Electricity: motive power systems
Switched reluctance motor commutation control
318439, H02P 602
Patent
active
055857019
ABSTRACT:
A circuit for generating a mirror current is provided, separately from a circuit for supplying a drive current. The mirror current generating circuit generates a mirror current of a predetermined ratio to the generated drive current. A circuit for detecting a current detects the mirror current. On the basis of the detected mirror current, the operation of a predetermined FET is controlled, and the amount of the drive current to be supplied to a motor is controlled. Thus, a decrease in the drive current due to a current source-side voltage loss can be prevented. In addition, power consumption due to current detection can be reduced, and as a result the drive current can be supplied efficiently.
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Kaida Katsuhiko
Kiuchi Hidemichi
Sakurai Tetsuji
Kabushiki Kaisha Toshiba
Martin David S.
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