Results 71 to 80 of about 122,227 (359)
Advanced Materials, EarlyView.Metasurface‐engineered NC‐TENG arrays integrate tactile pressure mapping, non‐contact gesture sensing, and acoustic signal readouts in one ultrathin module, and outperforms pristine PDMS in terms of electrical output and real‐time spatial mapping for next‐gen wearables.
Injamamul Arief +12 more
wiley +1 more source
IET Power Electronics, 2023 In this paper, the problem of harmonic coupling between the converter transformer and the converter under the action of geomagnetically induced current (GIC) is proposed to be investigated.
Yang Peihong +6 more
doaj +1 more source
Electro-thermal analysis of power converter components in low-voltage DC microgrids for optimal protection system design [PDF]
, 2017 Bidirectional power converters are considered to be key elements in interfacing the low voltage dc microgrid with an ac grid. However to date there has been no clear procedure to determine the maximum permissible fault isolation periods of the power ...
Burt, Graeme +4 more
core +1 more source
n‐Type Polymer Radio Frequency Rectifiers Operating at 18.5 GHz
Advanced Materials, EarlyView.Combining an n‐doped polymer semiconductor with wafer‐scale asymmetric planar electrodes featuring work function‐engineered contacts yields radio‐frequency diodes and rectifying circuits operating at up to 18.5 GHz. The devices combine scalable manufacturing with an operating frequency previously unattainable by large‐area organic electronics ...
Lazaros Panagiotidis +19 more
wiley +1 more source
Control of hybrid AC/DC microgrid under islanding operational conditions
Journal of Modern Power Systems and Clean Energy, 2014 This paper presents control methods for hybrid AC/DC microgrid under islanding operation condition. The control schemes for AC sub-microgrid and DC sub-mi-crogrid are investigated according to the power sharing requirement and operational reliability. In
Guangqian Ding +4 more
doaj +1 more source
Two-Stage Power Conversion Architecture Suitable for Wide Range Input Voltage [PDF]
, 2014 This paper presents a merged-two-stage circuit topology suitable for either wide-range dc input voltage or ac line voltage at low-to-moderate power levels (e.g., up to 30 W).
Lim, Seungbum +3 more
core +1 more source
Light Switchable Ionic Conductivity of Arylazopyrazole Modified Polysiloxanes
Advanced Materials Technologies, EarlyView.We present a polysiloxane functionalized with a novel arylazopyrazole dye that undergoes reversible photoisomerization. Upon lithium bis(trifluoromethanesulfonyl)imide addition and UV irradiation, the polymer exhibits a shift in tan(d) toward higher frequencies and enhanced ionic conductivity.
Malte S. Beccard +7 more
wiley +1 more source
DSP Based Control Implementation of an AC/DC Converter with Improved Input Current Distortion
Advances in Electrical and Computer Engineering, 2011 This paper presents a digital signal processor based control of an AC/DC converter with nearly unity power factor. Normally, the output voltage of a single-phase AC/DC converter comprises a voltage ripple with twice line-frequency.
WISUTMETHEEKORN, P., CHUNKAG, V.
doaj +1 more source
Konverter Ac-dc Tiga Fasa Terkendali Terhadap Total Harmonic Distortion (Thd) Pada Beban Induktif Berbasis Lab-view [PDF]
, 2013 Application of non linear loads are widely used in household industries, office buildings and factories such as power converters for motor speed control of ac/dc, un-interruptible power supplies (ups) lampfluorescent using electronic ballas.
Kusnadi, K. (Kusnadi) +1 more
core
Impact of converter losses on the optimal power flow solution of hybrid networks based on VSC-MTDC [PDF]
, 2017 This paper studies the impact of voltage source converter (VSC) losses on the solution of the optimal power flow (OPF) of hybrid AC/DC systems with a multi-terminal configuration.
Echavarren, F. M. +4 more
core +2 more sources