Results 31 to 40 of about 532,709 (209)

Constant-frequency multi-resonant converter-fed DC motor drives [PDF]

open access: yes, 1996
Low-inductance dc motors with high power density and low rotor inertia are becoming more attractive, particularly for servo applications. In order to maintain their current ripples within acceptable levels, power converters need to operate at high ...
Chan, CC, Chau, KT, Ching, TW
core   +1 more source

Zero-Voltage and Zero-Current Switching Converters

open access: yesInternational Journal of Computer Applications, 2010
This paper deals with the simulation of a PWM three-level (3L) & five level (5L) converters. The modulation strategies can be classified into two kinds according to the turn-off sequence of the two switches of the pair of switches. The concept of the leading switches and the lagging switches is introduced to realize softswitching for PWM 3L and 5L ...
P. Sangameswararaju   +2 more
openaire   +1 more source

Delay effects on the limit cycling behavior in an H-bridge resonant inverter with zero current switching control strategy [PDF]

open access: yes, 2018
Celebrado en Tarragona del 2-6 de septiembre de 2018.In this paper, bifurcations of limit cycles in a H-bridge LC resonant inverter under a zero current switching control strategy with delay in the switching action are analyzed. Mathematical analysis and
Benadero, Luis   +5 more
core   +3 more sources

An Interleaved Zero-Voltage Zero-Current Switching High Step-Up DC-DC Converter

open access: yesIEEE Access, 2021
An interleaved zero-voltage zero-current switching (ZVZCS) high step-up DC-DC converter is proposed for modern photovoltaic power generation systems. The proposed converter can achieve high voltage conversion gain without operating under extreme duty ...
Binxin Zhu   +3 more
doaj   +1 more source

Detecting Current Noise with a Josephson Junction in the Macroscopic Quantum Tunneling Regime

open access: yes, 2006
We discuss the use of a hysteretic Josephson junction to detect current fluctuations with frequencies below the plasma frequency of the junction. These adiabatic fluctuations are probed by switching measurements observing the noise-affected average rate ...
A. V. Timofeev   +32 more
core   +1 more source

Zero-Current-Switched Three-Phase SVM-Controlled Buck Rectifier

open access: yesIEEE Transactions on Industrial Electronics, 2005
A zero-current-transition (ZCT) cell is analyzed and designed to be used with a three-phase pulsewidth-modulation buck rectifier. This rectifier was space-vector controlled and used unidirectional current switches. The proposed ZCT circuit is load independent and achieves a high noise and voltage stress reduction and provides ZCTs to almost all ...
Sanchis Kilders, Esteban   +8 more
openaire   +2 more sources

Zczvt Inverters With Magnetically Coupled Auxiliary Pole

open access: yesEletrônica de Potência, 2010
Existing Zero-Current Transition and Zero- Current Zero-Voltage Transition inverters provides favorable switching conditions for IGBT semiconductors increasing significantly the reactive energy of the converter.
Mário Lúcio da Silva Martins   +4 more
doaj   +1 more source

A Hybrid Resonant ZVZCS Three-Level Converter Suitable for Photovoltaic Power DC Distribution System

open access: yesIEEE Access, 2020
A novel hybrid resonant zero-current- switching (ZCS) three-level DC-DC converter based on a dual transformer with two output filter capacitors is proposed in this paper, which is suitable for application in distributed photovoltaic power generation at ...
Syed Waqar Azeem   +4 more
doaj   +1 more source

Circuit Structure and Control Method to Reduce Size and Harmonic Distortion of Interleaved Dual Buck Inverter [PDF]

open access: yes, 2020
A new circuit structure and control method for a high power interleaved dual-buck inverter are proposed. The proposed inverter consists of six switches, four diodes and two inductors, uses a dual-buck structure to eliminate zero-cross distortion, and ...
Cho, Min-Gi   +4 more
core   +1 more source

Electro-Mechanical Simulation of Switching Characteristics for Nanoelectromechanical Memory

open access: yes, 2009
The static switching properties and readout characteristics of proposed high-speed and nonvolatile nanoelectromechanical (NEM) memory devices are investigated By conducting a three-dimensional finite element mechanical simulation combined with an ...
Arai, T   +6 more
core   +1 more source

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