scholarly journals Coupled-inductor design optimization for fast-response low-voltage DC-DC converters

2003 ◽  
Author(s):  
Jieli Li ◽  
C.R. Sullivan ◽  
A. Schultz
Keyword(s):  
Design Optimization ◽  
Low Voltage ◽  
Fast Response

Flexible PLED displays and related technologies

2004 ◽  
Vol 814 ◽  
Author(s):  
G. Nisato ◽  
C. Mutsaers ◽  
H. Buijk ◽  
P. Duineveld ◽  
E. Janssen ◽  
...  
Keyword(s):  
High Performance ◽  
Structural Integrity ◽  
Low Voltage ◽  
Flexible Substrate ◽  
Fast Response ◽  
Industrial Applications ◽  
Hole Transport ◽  
The Other ◽  
Enabling Technology ◽  
Other Hand

AbstractFlexible, free shape displays are the enabling technology for new robust, lightweight, extremely thin, portable electronic devices. Polymer Light Emitting Diodes (PLED) are especially suited for these applications, due to their fast response time, low voltage, high luminous efficiency and viewing angle performance. On the other hand, PLED displays are extremely sensitive to moisture and oxygen. Substrate materials provided with high performance hermetic and conducting layers are therefore an essential component for manufacturing these flexible devices. Polymer based substrates provide the necessary mechanical flexibility; they also require several thin, brittle, functional inorganic layers such diffusion barriers and transparent electrodes. The structural integrity, dimensional stability and thermal properties of the substrate stack are crucial to insure device functionality and reliability. For polymer-based substrate several effects lead to dimensional variation of the substrates, such as solvent uptake, physical ageing of the polymer base, thermal expansion and stress induced deformations. These effects must be taken into account to successfully perform classic photolithographic steps.Ink-jet printing is a critical enabling technology for flexible PLED displays, providing a customizable means to dispense solution-based polymers onto a flexible substrate, allowing for multi-color devices. On the other hand, IJP must meet several challenges, especially to comply with industrial applications. For example, accurate landing position of the droplets to form homogeneous hole-transport and electroluminescent layers as well as good wetting characteristic of the substrates must be obtained with reliable high throughput techniques.

Research on Fast Driving Control Technology of Electric-Control Injector for Marine High Pressure Common Rail Diesel

2014 ◽  
Vol 672-674 ◽  
pp. 1568-1573
Author(s):  
Yan Feng Kong ◽  
Guang Yao Ouyang ◽  
Zhen Ming Liu ◽  
Lu Li
Keyword(s):  
High Pressure ◽  
Low Voltage ◽  
Fast Response ◽  
Solenoid Valve ◽  
Common Rail ◽  
Time Sharing ◽  
Marine Diesel ◽  
Driving Circuit ◽  
Dual Power ◽  
High Pressure Common Rail

Based on the analyses of the current solenoid valve driving circuits in marine diesel, a new type of dual-power double-maintain injector driving circuit is designed for marine high-pressure common-rail diesel. The circuit uses BOOST high voltage (80V) and storage battery low voltage (24V) to make up of dual-power time-sharing driver, which achieves automatic PWM feedback modulation of the solenoid valve injection current from the hardware. Experiments were carried out on a certain type of injector, the results showed that: the driving circuit had fast response time, only 0.045ms from zero to 22A of the solenoid valve current was required; the peak value of driving current has a good consistency, parameters including peakvalue current altitude, lasting time, maintain current altitude and maintain current lasting time could be adjusted flexibly. Besides, the circuit could be flexibly configured without occupying MCU resources.

Design, optimization and simulation of a low-voltage shunt capacitive RF-MEMS switch

2015 ◽  
Vol 22 (3) ◽  
pp. 537-549 ◽  
Author(s):  
Li-Ya Ma ◽  
Anis Nurashikin Nordin ◽  
Norhayati Soin
Keyword(s):  
Design Optimization ◽  
Rf Mems ◽  
Low Voltage ◽  
Rf Mems Switch ◽  
Mems Switch ◽  
Optimization And Simulation

Low voltage fast response display using dual π-cells with quarter-wave thickness

2014 ◽  
Vol 22 (5) ◽  
pp. 229-236
Author(s):  
HsienHui Cheng ◽  
Achintya Bhowmik ◽  
Philip. J. Bos
Keyword(s):  
Low Voltage ◽  
Fast Response ◽  
Quarter Wave

A Fast-Response Electroactive Actuator Based on TEMPO-Oxidized Cellulose Nanofibers

2021 ◽  
Author(s):  
Yan Huang ◽  
Fang Wang ◽  
Liying Qian ◽  
Xiuhua Cao ◽  
Beihai He ◽  
...  
Keyword(s):  
Layered Structure ◽  
Self Assembly ◽  
Biomedical Applications ◽  
Low Voltage ◽  
Cellulose Nanofibers ◽  
Conductive Polymer ◽  
Fast Response ◽  
Tempo Oxidation ◽  
Ion Migration ◽  
High Mechanical Strength

Abstract Cellulose-based electroactive actuators are promising candidates for biomimetic robots and biomedical applications due to their lightweight, high mechanical strength, and natural abundance. However, cellulose-based electroactive actuators exhibit lower actuation performance than traditional conductive polymer actuators. This work reports a fast-response cellulose-based electroactive actuator based on 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) oxidized nanocellulose (TOCNF) film with layered structure fabricated by evaporation, and gold electrodes prepared by ion sputtering. The residual ions during the TEMPO oxidation process and the layered structure due to self-assembly accelerate the ion migration efficiency in actuators. The proposed actuator can reach a tip displacement of 32.1 mm at a voltage of 10 V and deflect 60° in 5 s. After applying a reverse 10 V voltage, the actuator can also be quickly deflected (42.5 mm). In addition, the actuator also shows high electrical actuation performance at low voltage (5 V). The excellent electroactive performance of as-prepared TOCNF/Au enables the feasibility to be applied to actuators.

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