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디스크 드라이브용 VCM 액추에이터의 전력 소모와 감도비에 관한 연구

Power Consumption and Sensitivity ratio of VCM-type Actuator for Disk Drive

  • 김선모 (삼성전자 디지털미디어연구소) ;
  • 장동섭 (삼성전자 디지털미디어연구소) ;
  • 윤진욱 (삼성전자 디지털미디어연구소)
  • 발행 : 2004.12.01

초록

In this paper, the explicit equations on the power consumption and sensitivity ratio of VCM-type actuator for disk drive are proposed. The power consumption and sensitivity ratio is derived in frequency domain. The power consumption during the track following of the actuator can be described well in frequency domain and it can be used to calculate the total power dissipation of the actuator which is needed to compensate the tracking and focusing errors. Also, the sensitivity ratio of an actuator is derived by using the reference servo of a disk drive and will be used to optimally obtain the performances of the actuator. This sensitivity ratio can persuasively explain the basis of the target performances of the actuator in the considerations of the reference servo. The usefulness of the proposed equations for the sensitivity ratio and power consumption of an actuator is shown by a lot of simulations. In the near future, we will verify the simulation results by experiments.

키워드

참고문헌

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