Invention Grant
US08717713B1 Differentially driven piezoelectric transducers for dual stage actuated disk drive head suspension
有权
用于双级驱动磁盘驱动器磁头悬架的差分驱动压电换能器
- Patent Title: Differentially driven piezoelectric transducers for dual stage actuated disk drive head suspension
- Patent Title (中): 用于双级驱动磁盘驱动器磁头悬架的差分驱动压电换能器
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Application No.: US13279814Application Date: 2011-10-24
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Publication No.: US08717713B1Publication Date: 2014-05-06
- Inventor: Jacob D. Bjorstrom , Zachary D. Pokornowski , Ryan N. Ruzicka
- Applicant: Jacob D. Bjorstrom , Zachary D. Pokornowski , Ryan N. Ruzicka
- Applicant Address: US MN Hutchinson
- Assignee: Hutchinson Technology Incorporated
- Current Assignee: Hutchinson Technology Incorporated
- Current Assignee Address: US MN Hutchinson
- Agency: Faegre Baker Daniels LLP
- Main IPC: G11B5/58
- IPC: G11B5/58 ; G11B21/20

Abstract:
An improved dual stage actuated disk drive head suspension in accordance with one embodiment of the invention includes a mounting/base plate having first and second portions connected by a linkage, one or more PZT motors and a flexure having one or more pairs of differential drive signal traces. Each PZT motor has a pair of electrodes. Non-conductive adhesive secures each PZT motor to the first and second portions of the mounting/base plate with the electrodes of each motor being electrically isolated from the mounting/base plate. Each pair of drive signal traces is electrically connected to one of the pair of PZT motor electrodes to couple differential electrical drive signals to the PZT motor. Each PZT motor drives the first and second portions of the mounting/base plate with respect to one another in response to the drive signals.
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