| Summary: | 碩士 === 國立成功大學 === 電機工程學系碩博士班 === 95 === Electrowetting on dielectric (EWOD) moving droplet by surface tension effects offers some advantages, including simplicity of fabrication, control of minute volumes, low cost, substitute for micro-mixers and others.
In this work, a portable microsystem including the EWOD device, a 9V battery, an ATmega8535 microprocessor, a DC/DC converter using transformerless technology, two regulator ICs, a switch circuit, a keyboard and LCD module has been developed. The microsystem is able to generate a stable square wave in the range of 50~100Vpp and 1~5k Hz to drive the EWOD device. In this experiment, the EWOD device is driven by a square wave of 60Vpp and 3k Hz.
Two basic operations, transporting and cutting are demonstrated on square-shaped, interdigitated electrodes. The advantage and disadvantage of the interdigitated electrode are discussed comparing with the normal square-shaped electrode.
|
|---|
