High efficient driving circuit for traveling wave dielectrophoretic pump
Journal
Measurement: Journal of the International Measurement Confederation
Journal Volume
44
Journal Issue
10
Pages
1980-1985
Date Issued
2011
Author(s)
Abstract
The micro-fluidic systems based on the dielectrophoresis (DEP) phenomenon have become one of the hottest topics recently. By combining sensor and actuator into a system, a miniature traveling wave dielectrophoretic (TWDEP) pump can be widely used in biomedical applications. As often powered by lower voltage, the actuator of such a system must be minimized yet with adequate capability to drive the DEP pump to the required speed. The driving circuit for the actuator described in this study is designed and tested to attain the purpose of driving a TWDEP pump for whole blood samples. For improving the driving capability, four-phase AC fields were designed and the output levels were increased to double the supply voltage. Quantitative comparison between the driving circuit and function generator by velocity measurement was made. The driving circuit works properly for the steady state operation of the pump. © 2011 Published by Elsevier Ltd. All rights reserved.
SDGs
Type
journal article