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Optical storage apparatus and unit motor driver power regulating method thereof

A technology of stepping motor and power adjustment, which is applied in the directions of recording/reproducing, information storage, recording information storage by optical methods, etc., can solve the problems of power consumption of optical storage devices, damage to optical storage devices, etc.

Inactive Publication Date: 2008-01-30
BENQ CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Traditionally, in order to make all the stepping motors rotate smoothly, the motor controller will apply a large voltage (preset value) to drive the stepping motors, which makes the optical storage device consume more power, and in the worst case damage to the optical storage device due to heat

Method used

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  • Optical storage apparatus and unit motor driver power regulating method thereof
  • Optical storage apparatus and unit motor driver power regulating method thereof
  • Optical storage apparatus and unit motor driver power regulating method thereof

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Embodiment Construction

[0012] FIG. 1 is a schematic diagram showing the hardware structure of an optical storage device according to an embodiment of the present invention. The optical storage device 10 includes a mechanical device 11 , a control unit 12 and a data reading element 13 . The mechanical device 11 includes a stepping motor 111 . The control unit 12 includes a chip (chip) / chipset (chipset) 121, a non-volatile storage device (non-volatile memorydevice) 124, such as an electronically erasable programmable read-only memory (Electrically Erasable Programmable Read Only Memory; EEPROM ), flash read-only memory (Flash ROM) or other memory that will not cause data disappearance due to power cut off, and a volatile memory device (volatile memory device) 125, such as Dynamic Random Access Memory (Dynamic Random Access Memory; DRAM), synchronous dynamic access memory (Synchronous DRAM; SDRAM) or other memory that will cause data to disappear due to power cut. Chip / chipset 121 includes a processi...

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Abstract

A step motor driving power adjusting method is provided. The method includes reading a first address on an optical storage media, providing a first driving power to the step motor and then reading a second address on the optical storage media, calculating a first actual displacement distance between the first address and the second address and then reading a third address on the optical storage media, providing a second driving power to the step motor and then reading a fourth address on the optical storage media, calculating a second actual displacement distance between the third address and the fourth address and determining the better driving power to be one of the first driving power or the second driving power according to the first actual displacement distance and the second actual displacement distance.

Description

technical field [0001] The invention relates to a stepping motor control technology, in particular to a stepping motor driving power adjustment method applied in an optical storage device. Background technique [0002] A known optical storage device includes a mechanical device, a control unit, and a data read / write element, and the mechanical device includes a stepping motor (stepping motor), which is used to move the data read / write element to a specified position for reading or data input. A stepper motor can be regarded as an electric motor without a commutator. Traditionally, a part of the stator (stator) in a stepping motor contains all the coils, while the rotor (rotor) of the motor is a magnetic substance. The control unit includes a motor controller for learning all rectification operations, and the motor controller can control the motor to rotate clockwise or counterclockwise from a fixed position. Most stepper motors can use frequencies to control the speed of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B7/085G11B7/09G11B21/02H02P8/00
Inventor 罗亦和李坤城
Owner BENQ CORP