Title:
【発明の名称】圧電アクチュエータ
Document Type and Number:
Japanese Patent JP2001516512
Kind Code:
A
Abstract:
A piezoelectric actuator having a plurality of plates of a piezoelectric material whose polarization direction runs perpendicularly to the plate plane, and which are stacked one over another in their polarization direction. The piezoelectric actuator includes a control voltage source having two contacts, two groups of at least two outer electrodes, respectively, and a plurality of internal electrodes which, in each case, are arranged between the piezoelectric plates. In this context, the outer electrodes of the first group are electrically connected to a first contact of control voltage source, and the outer electrodes of the second group to the second contact of control voltage source. Internal electrodes alternately contact outer electrodes in such a way that, in each case, an internal electrode is electrically connected to one contact of control voltage source, and the internal electrode that is next in the stacking direction is electrically connected to the other contact of control voltage source. The internal electrodes contact the outer electrodes in a cyclic sequence.
Inventors:
Rudolf Heinz
Claus-Peter Schmol
Friedrich becking
Claus-Peter Schmol
Friedrich becking
Application Number:
JP53771299A
Publication Date:
September 25, 2001
Filing Date:
October 21, 1998
Export Citation:
Assignee:
ROBERT BOSCH GMBH
International Classes:
H01L41/047; H01L41/083; H02N2/02; H02N2/04; H01H57/00; (IPC1-7): H01L41/083
Attorney, Agent or Firm:
Toshio Yano (3 outside)