publication . Patent . 2010

Method for driving an actuator, actuator drive, and apparatus comprising an actuator

Otte, Rob; Compter, J.C.; Cremers, F.L.M.;
Open Access
  • Published: 24 Aug 2010
  • Country: Netherlands
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.
arXiv: Computer Science::Robotics
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Patent . 2010
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