Reluctance motor drive circuit and reluctance motor system
AssigneeMabuchi Motor Co., Ltd.
InventorAkira Matsunawa
Life of this patent
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Abstract
A drive circuit is provided for a reluctance motor including a stator having multiple salient poles and a rotor having multiple salient poles, and the drive circuit includes a first path used to supply a current for excitation that flows through at least part of a coil wound around a salient pole of the stator or the rotor, and a second path used to supply a current for demagnetization that flows through a different part of the coil that does not coincide with the at least part of the coil.
Claims11
A drive circuit for a reluctance motor comprising a stator having a plurality of salient poles and a rotor having a plurality of salient poles, the drive circuit comprising:
- a first path used to supply a current for excitation that flows through at least part of a coil wound around a salient pole of the stator or the rotor;
- and
- a second path used to supply a current for demagnetization that flows through a different part of the coil that does not coincide with the at least part of the coil.
A drive circuit for a reluctance motor comprising a stator having a plurality of salient poles and a rotor having a plurality of salient poles, the drive circuit comprising:
- a first path used to supply a current from a high side reference line connected to the positive side of a power supply, via at least part of a coil wound around a salient pole of the stator or the rotor, to a low side reference line connected to the negative side of the power supply;
- a second path used to supply a current from the low side reference line, via a different part of the coil that does not coincide with the at least part of the coil, to the high side reference line;
- and
- switching means that performs switching between the connection of the first path and the connection of the second path, wherein:
- inductance in the second path is less than or equal to inductance in the first path;
- and
- the direction of a current flowing through the coil is the same in the first path and the second path.
Dependencies are inferred from the claim text.