Method and apparatus for controlling a deflectable head

Details Method and apparatus for controlling a deflectable head Method and apparatus for controlling a deflectable head

G - Physics

11

B

352/21.3

G11B 5/592 (2006.01) G11B 21/02 (2006.01) H01L 41/04 (2006.01)

Patent

CA 1241440

ABSTRACT OF THE DISCLOSURE An apparatus for controlling a deflectable head mounted on a bimorph leaf having a detector connected to the bimorph leaf for detecting a deflection of the bimorph leaf, a drive signal generating circuit for generating a drive signal to deflect the bimorph leaf in response thereto, a combining circuit for combining output signals of the detector and the drive signal generating circuit, a damping signal generating circuit for generating a damping signal to attenuate a distortion of the bimorph leaf that is produced by the deflection of the bimorph leaf, a circuit for producing a corresponding signal to the variation of the detector after application of the damping signal to the bimorph leaf and a circuit connected between the producing circuit and the combining circuit for compensating the corresponding signal to thereby reduce the variation of the detector.

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