Results 31 to 40 of about 18,878 (238)

A Separated Reset Waveform Design for Suppressing Oil Backflow in Active Matrix Electrowetting Displays

open access: yesMicromachines, 2021
The electrowetting display (EWD) is a kind of reflective paper-like display. Flicker and grayscale distortion are caused by oil backflow, which is one of the important factors restricting the wide application of EWDs.
Linwei Liu   +3 more
doaj   +1 more source

Driving complex flow waveforms with a linear voice coil actuator [PDF]

open access: yesBiomicrofluidics, 2019
Oscillatory and pulsatile fluid flows for use in microfluidic applications were generated using a deformable chamber driven by a low cost linear voice coil actuator. Compliance in the fluidic system originating in the deformable chamber and the fluidic tubing produced a strong frequency dependence in the relationship between the system’s input and the ...
Dylan C. Young   +2 more
openaire   +2 more sources

Common mode output waveforms reduction for Matrix Converters drives [PDF]

open access: yes2009 35th Annual Conference of IEEE Industrial Electronics, 2009
This paper presents an alternative Space Vector Modulation (SVM) implemented in Matrix Converters (MC) which improves and reduces the Common Mode (CM) voltage and current output waveforms. The strategy is based on replacing the MC zero vectors for the rotating ones, which reduces the CM voltage derivative and therefore the leakage CM current.
Espina Masramon, Jorge   +3 more
openaire   +2 more sources

Improvements of Piezo-Actuated Stick–Slip Micro-Drives: Modeling and Driving Waveform [PDF]

open access: yesCoatings, 2018
Modeling and waveform optimization are important research topics for piezo-actuated stick–slip micro-drives. In this paper, the dynamics of piezo-actuated stick–slip micro-drives (PASSMDs) are theoretically investigated. We introduce an extended model taking the dynamics of the piezo actuators into account.
Xuan-Ha Nguyen   +4 more
openaire   +1 more source

Research on Driving Waveform and Residual Oscillation in Piezo Inkjet [PDF]

open access: yes, 2022
Abstract Piezoelectric driving system is an important part in inkjet printing equipment. The driving waveform, the structure of print head, and etc., directly affect the ejection characteristics and the printing accuracy of droplets. In this paper, the driving waveform was taken as the research object, then established a finite element analysis
WU Qiu-min, CUI Xin-yu, XU Lei, SU Xin
openaire   +1 more source

A Combined Pulse Driving Waveform With Rising Gradient for Improving the Aperture Ratio of Electrowetting Displays

open access: yesFrontiers in Physics, 2021
As a reflective display technology, electrowetting displays (EWDs) have the advantages of paper-like display, low power consumption, fast response, and full color, but the aperture ratio of EWDs is seriously affected by oil dispersion and charge trapping.
Lixia Tian, Pengfei Bai
doaj   +1 more source

The optimal driving waveform for overdamped, adiabatic rocking ratchets [PDF]

open access: yesJournal of Physics A: Mathematical and Theoretical, 2008
Submitted to Journal of Physics ...
openaire   +3 more sources

Review of Driving Waveform for Electrowetting Displays

open access: yesFrontiers in Physics, 2021
Electrowetting display (EWD) is the most potential technology among new electronic paper technologies. It not only has the advantages of electrophoretic display (EPD) technology but also can realize color video playback.
Zichuan Yi   +11 more
doaj   +1 more source

Simple driving waveform and circuit for plasma display

open access: yesElectronics Letters, 2008
A simple driving waveform and circuit is proposed for driving a PDP. This circuit needs only one switching device to apply the VSUS and VGND to the Scan-IC in the scan board. The proposed waveform and circuit can reduce production cost, switching-noise, and the heating-loss for the driving circuit.
Y. Kim, S. Park
openaire   +1 more source

Study on pulse shaping optimization of multiphase compensated pulsed alternator

open access: yesEnergy Reports, 2022
Compensated pulsed alternator (CPA) can exchange its kinetic energy into high current pulses. The pulse current waveform can be provided more flexibility by means of the trigger angle control of each phase from the multiphase CPA pulse driving system ...
Qi Li, Chengxu Sun, Youlong Wang, Ye Li
doaj   +1 more source

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