Single-phase brushless dc motor
AssigneeNidec Servo Corporation
InventorsHideaki ITO, Taro TANNO
Life of this patent
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Abstract
A single-phase brushless DC motor includes a rotor rotatable about a central axis, a stator including salient pole portions, a stator core including a slot between the salient pole portions, and a winding wound around the salient pole portions, the stator opposing the rotor with an air gap interposed therebetween, and a substrate fixed to the stator and including a driver to perform energization control of the winding. The driver includes a Hall element to acquire a timing of the energization control. The substrate includes a Hall IC to detect a circumferential position of the rotor separately from the driver.
Claims8
1-7. (canceled)
A single-phase brushless DC motor comprising:
- a rotor rotatable about a central axis;
- a stator including salient pole portions, a stator core including a slot between the salient pole portions, and a winding wound around the salient pole portions, the stator opposing the rotor with an air gap interposed therebetween;
- and
- a substrate fixed to the stator and including a driver to perform energization control of the winding;
- wherein
- the driver includes a Hall element to acquire a timing of the energization control;
- and
- the substrate includes a Hall IC to detect a circumferential position of the rotor separately from the driver.
Dependencies are inferred from the claim text.