PIEZOELECTRIC SLIP-STICK DRIVE

The driver (10) for a piezoelectric slip-stick drive charges a capacitor (15) while applying a ramp voltage to a piezoelectric actuator (11) in such a manner that the charges on the capacitor (15) and the actuator (11) are equal but of opposite sign. At the end of the ramp, a switch (14) is used to...

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Bibliographic Details
Main Author RYCHEN, JOERG
Format Patent
LanguageEnglish
French
German
Published 03.08.2011
Subjects
ELECTRICITY
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Summary:The driver (10) for a piezoelectric slip-stick drive charges a capacitor (15) while applying a ramp voltage to a piezoelectric actuator (11) in such a manner that the charges on the capacitor (15) and the actuator (11) are equal but of opposite sign. At the end of the ramp, a switch (14) is used to connect the actuator (11) to the capacitor (15), which leads to a fast discharge.
Bibliography:Application Number: EP20070720178