Invention Grant
US07782720B2 Method for driving an actuator, actuator drive, and apparatus comprising an actuator
失效
用于驱动致动器，致动器驱动器和包括致动器的装置的方法
- Patent Title: Method for driving an actuator, actuator drive, and apparatus comprising an actuator
- Patent Title (中): 用于驱动致动器，致动器驱动器和包括致动器的装置的方法
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Application No.: US10540687Application Date: 2003-12-04
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Publication No.: US07782720B2Publication Date: 2010-08-24
- Inventor: Rob Otte , Johan Cornelis Compter , Franciscus Lambertus Maria Cremers
- Applicant: Rob Otte , Johan Cornelis Compter , Franciscus Lambertus Maria Cremers
- Applicant Address: NL Eindhoven
- Assignee: Koninklijke Philips Electronics N.V.
- Current Assignee: Koninklijke Philips Electronics N.V.
- Current Assignee Address: NL Eindhoven
- Priority: EP02080577 20021230
- International Application: PCT/IB03/05731 WO 20031204
- International Announcement: WO2004/059649 WO 20040715
- Main IPC: G11B7/00
- IPC: G11B7/00
Abstract:
An actuator driver circuit includes a drive signal source and an electrical damping element having a negative resistance connected in series with the drive signal source. A controllable switch is provided for selectively switching the electrical damping element into or put of a signal path from a drive signal source output to a driver circuit output, in order to selectively change the electrical damping of an actuator. For example, the electrical damping of a radial actuator or a focus actuator of an optical disc drive is increased in case of loss of track or loss of focus.
Public/Granted literature
- US20060104162A1 Method for driving an actuator, actuator drive, and apparatus comprising an actuator Public/Granted day:2006-05-18
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