Results 291 to 300 of about 6,600,824 (345)

Energy loss in spark gap switches

Physics of Plasmas, 2014
The paper reports on numerical study of the energy loss in spark gap switches. The operation of the switches is analyzed using the Braginsky model which allows calculation of the time dependence of the spark channel resistance. The Braginsky equation is solved simultaneously with generator circuit equations for different load types.
V. I. Oreshkin, I. V. Lavrinovich
openaire   +1 more source

Estimation of switched reluctance motor losses

IEEE Transactions on Industry Applications, 1992
A method of predicting switched reluctance motor (SRM) losses under operating conditions inclusive of saturation is described. General expressions for the flux frequencies in different parts of the core are derived. Fourier analysis is applied to decompose the flux waveforms into their constituent sinusoidal components, which are then used in ...
P. Materu, R. Krishnan
openaire   +1 more source

Variable switching frequency hybrid PWM technique for switching loss reduction in a three-phase two-level voltage source inverter

, 2020
Power loss reduction is one of the main objectives in power electronic system design for achieving higher efficiencies and enhancing system reliability.
A. Ibrahim, M. Z. Sujod
semanticscholar   +1 more source

Analytical Switching Loss Model for GaN-Based Control Switch and Synchronous Rectifier in Low-Voltage Buck Converters

IEEE Journal of Emerging and Selected Topics in Power Electronics, 2019
In this paper, an analytical switching loss model for a gallium nitride (GaN) based control switch (CS) and synchronous rectifier (SR) in low-voltage buck converters is proposed.
Yajie Xin, Wanjun Chen, Ruize Sun, Yijun Shi, Chao Liu, Yun Xia, Fangzhou Wang, Maoling Li, Jia Li, Qi Zhou, Xiaochuan Deng, Tangsheng Chen, Zhaoji Li, Bo Zhang   +13 more
semanticscholar   +1 more source

Energy loss reduction by critical switches

IEEE Transactions on Power Delivery, 1993
A systematic method to derive an optimal switching plan to achieve energy loss minimization for short term and long term operation of distribution systems is presented. The short term optimal switching criterion is developed by binary integer programming with a branch and bound technique.
C.-S. Chen, M.-Y. Cho
openaire   +1 more source

Low loss 4x4 optical switching network

Electronics and Communications in Japan (Part I: Communications), 1980
AbstractA 4 × 4 optical switching network was realized which has a low insertion loss and good switching repeatability. Practical optical switching networks are in great demand for optical fiber communication and information processing systems of higher grade and more versatility.
Yohji Fujii, Jun‐Ichiro Minowa, Yoichi Nagatas, Tsutomu Aoyama, Kikuo Dois   +4 more
openaire   +1 more source

Hybrid Modulation Scheme for Switching Loss Reduction in a Modular Multilevel High-Voltage Direct Current Converter

IEEE transactions on power electronics, 2019
A modular multilevel converter (MMC) is regarded as a promising topology in high-voltage direct current systems. However, the MMC consists of numerous submodules (SMs) and switching devices, which lead to a considerable switching loss, and increased cost
Seok-Min Kim, Min Jeong, Juyong Kim, Kyo-Beum Lee   +3 more
semanticscholar   +1 more source

A low loss switching PWM CSI

PESC `92 Record. 23rd Annual IEEE Power Electronics Specialists Conference, 2003
A low-loss soft-switching CSI topology, consisting of two parallel switches with a midpoint connected capacitor, is proposed. The structure accomplishes zero voltage switching during turn-off without any additional snubber circuit. It is well suited for high power applications requiring the use of two parallel switches. An analysis and design procedure
L.D. Salazar, G. Joos, P.D. Ziogas
openaire   +1 more source

Large Power Hybrid Soft Switching Mode PWM Full Bridge DC–DC Converter With Minimized Turn-on and Turn-off Switching Loss

IEEE transactions on power electronics, 2019
A novel PWM full bridge (FB) dc–dc converter for large power industrial applications is proposed in this paper. The soft switching mode of the primary switches can be varied under different input and output conditions to achieve optimum system efficiency.
Yong Shi, Xuwei Gui, Ji Xi, Xin Wang, Xu Yang   +4 more
semanticscholar   +1 more source

Single-stage single-switch input-current-shaping technique with reduced switching loss

IEEE Transactions on Power Electronics, 1999
In this paper, a new single-stage, single-switch input-current-shaping (S/sup 4/ICS) technique which features substantially reduced turn-on switching loss of the switch in a S/sup 4/ICS flyback topology is described. In the proposed technique, the turn-on switching loss due to the discharging of the output capacitance of the switch is reduced by ...
L. Huber, M.M. Jovanovic
openaire   +1 more source