Control devices and methods
AssigneePrinceton Technology Corporation
InventorsChi-Wei HSU, Chi-Lin HSU
Life of this patent
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Abstract
A control device for driving a motor which includes a rotor and a stator is provided. The control device includes a Hall detector and driving circuit. The Hall detector detects magnetic flux variation when the rotor rotates and generates a first detection signal and a second detection signal. The first and second detection signals represent current rotation location when the rotor rotates. The driving circuit generates a driving signal to drive the stator. The driving circuit turns on or off the driving signal according to a control signal and the relationship between the first and second detection signals.
Claims20
A control device for driving a motor which comprises a rotor and a stator, the control device comprising:
- a Hall detector detecting magnetic flux variation when the rotor rotates and generating a first detection signal and a second detection signal, wherein the first and second detection signals represent current rotation location when the rotor rotates;
- a driving circuit generating a driving signal to drive the stator and turning on or off the driving signal according to a control signal and the relationship between the first and second detection signals.
A control method for driving a motor which comprises a rotor and a stator, the control method comprising:
- providing a driving signal;
- turning on the driving signal to drive the stator when a first terminal of the rotor is at a base point;
- and
- turning off the driving signal when the first terminal of the rotor is at a first specific point by moving from the base point.
Dependencies are inferred from the claim text.