Results 81 to 90 of about 11,309 (257)

High Power PWM rectifiers

, 2010
High power, high voltage PWM rectifiers with low swirching frequency are analyzed in terms of attainable powers exchangedwith the grid and of their current frequency spectra.
Valouch, Viktor
core  

High current and high power superconducting rectifiers [PDF]

, 1981
Results on three experimental superconducting rectifiers are reported. Two of them are 1 kA low frequency flux pumps, one thermally and magnetically switched.
ten Kate, Herman H.J., Bunk, P.B., ten Kate, Herman H.J.; id_orcid, Britton, R.B., van de Klundert, L.J.M.   +4 more
core   +2 more sources

Rational Tuning of Hygroscopic Oscillation of Stacked Nanoflake Assemblies for Continuous Ambient Energy Harvesting

Advanced Materials, EarlyView.
Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang, Jimin Fu, Gesa Zhang, Zhihua Liang, Boxun Zhang, Haimin Yao   +5 more
wiley   +1 more source

Finite Control Set Model Predictive Control Strategy for MMC Arm Current With DC Bus Voltage Stabilization Under Unbalanced Grid Conditions

IET Power Electronics
Finite Control Set Model Predictive Control (FCS‐MPC) is widely used in Modular Multilevel Converters (MMC), but it faces challenges such as heavy computational burden and the complexity of designing weighting factors.
Xiaobing Niu, Runze Qiu, Jingwei Zhu, Xin Chow   +3 more
doaj   +1 more source

Diode junctions in single ZnO nanowires as half-wave rectifiers

, 2009
We introduce dopants in a section of ZnO vertical nanowires. This forms a junction in the nanowires that exhibit diode nature in current-voltage characteristics. Under sinusoidal ac voltage, the nanowires act as half-wave rectifiers.
Pal, Amlan J., Mohanta, Kallol
core   +1 more source

Bioinspired Adaptive Surfaces for Intelligent Liquid Manipulation: Progressing From Passive and Active to Hybrid Strategies

Advanced Materials, EarlyView.
This review examines passive, active, and hybrid liquid manipulation strategies, highlighting hybrid approaches as an emerging route to reconcile energy efficiency with adaptive control. By actively reconstructing passive surfaces to store programmable interfacial energy, hybrid systems enable flexible yet low‐power liquid transport, with perspectives ...
Jiaqi Miao, Yiyuan Zhang, Liqiu Wang, Alan C. H. Tsang   +3 more
wiley   +1 more source

Reducing the Impact of Reverse Currents in Tunnel FET Rectifiers for Energy Harvesting Applications

IEEE Journal of the Electron Devices Society, 2017
RF to dc passive rectifiers can benefit from the superior performance at low voltage of tunnel transistors. They have shown higher power conversion efficiency (PCE) at low input power than Si FinFETs counterparts.
Juan Nunez, Maria J. Avedillo
doaj   +1 more source

Metal Oxide Nano‐Interface Boosting the Deep Ultraviolet Adjustable Noise‐Filtering In‐Sensor Computing

Advanced Materials, EarlyView.
We show that sol‐gel‐fractured indium–magnesium oxide combines deep‐ultraviolet responsivity, high carrier mobility, and an excellent memory dynamic range. This unique materials platform enables deep‐ultraviolet long‐afterglow light‐emitting devices with multifunctional integration.
Zhongshi Ju, Peng Li, Jingsong Yuan, Boyuan Yu, Bin Han, Yusheng Chen, Jiangang Ma, Haiyang Xu, Yichun Liu, Paolo Samorì   +9 more
wiley   +1 more source

Retificador buck trifásico unidirecional PWM isolado em alta-frequência por único estágio [PDF]

, 2012
Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Elétrica, Florianópolis, 2009Descreve-se uma nova topologia de conversor CA-CC trifásico isolado em alta-frequência por único estágio ...
Greff, Diego Santos
core  

Switching characteristics of monolithically integrated Si-GaN cascoded rectifiers

, 2017
In this paper, the switching performance of monolithically integrated Si-GaN cascoded rectifiers is presented. The reverse recovery charge of the cascoded rectifier is 86.2% less than that of a Si fast recovery diode (FRD), which reveals great potential ...
Ren, Jie, Liu, Chao, Lau, Kei May, Chao Liu, Tang, Chak Wah, Jie Ren, Chak Wah Tang, Johnny K. O. Sin, Kei May Lau, Sin, Johnny K.O.   +9 more
core   +1 more source