Motor driving control apparatus and method, and motor using the same
AssigneeSamsung Electro-Mechanics Co., Ltd.
InventorJoo Yul KO
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Abstract
There are provided a motor driving control apparatus and method and a motor using the same. The motor driving control apparatus includes: a back-electromotive force detecting unit detecting back-electromotive force of a motor apparatus; a gradient calculating unit calculating a gradient of a waveform of the detected back-electromotive force; and a controlling unit calculating a zero-crossing point of the back-electromotive force using the calculated gradient and controlling driving of the motor apparatus using the calculated zero-crossing point.
Claims17
A motor driving control apparatus comprising:
- a back-electromotive force detecting unit detecting back-electromotive force of a motor apparatus;
- a gradient calculating unit calculating a gradient of a waveform of the detected back-electromotive force;
- and
- a controlling unit calculating a zero-crossing point of the back-electromotive force using the calculated gradient and controlling driving of the motor apparatus using the calculated zero-crossing point.
A motor comprising:
- a motor apparatus performing a rotation operation according to a driving control signal;
- and
- a motor driving control apparatus providing the driving control signal to the motor apparatus to control driving of the motor apparatus,
- wherein the motor driving control apparatus calculates a zero-crossing point of back-electromotive force using a gradient of a waveform of the back-electromotive force detected in the motor apparatus and generates the driving control signal using the calculated zero-crossing point.
A motor driving control method performed by a motor driving control apparatus controlling driving of a motor apparatus, the motor driving control method comprising:
- detecting back-electromotive force of the motor apparatus;
- calculating a gradient of a waveform of the detected back-electromotive force;
- and
- calculating a zero-crossing point of the back-electromotive force using the calculated gradient and controlling the driving of the motor apparatus using the calculated zero-crossing point.
Dependencies are inferred from the claim text.