Design of Low Frequency Driving Circuit for Piezo-actuator
Date Issued
2004
Date
2004
Author(s)
Tsai, Ming-Pu
DOI
zh-TW
Abstract
Feeder system whose vibration source from Bimorph actuator is diving in this thesis. The basic equivalent Model of piezoelectric material will be discussed to show the key point about energy change between electric and mechanical.
Avoid the deploying of piezoelectric material, electric field have been limited in one–third coercive field traditionally. DC bias can change the work point of piezoelectric material. This skill can increase the electric voltage applied to piezoelectric material and it is really helpful to drive feeder system.
The goal is to fabricate a driving circuit to provide enough driving ability for feeder system.
Subjects
等效模型
直流偏壓
壓電致動器
DC bias
Piezo-actuator
Mason model
Type
thesis
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