Results 21 to 30 of about 2,092,870 (303)

Small-Signal Modeling for Phase-Shift Controlled Resonant Converters

open access: yesIEEE Transactions on Industrial Electronics, 2021
The extended describing function (EDF) method is widely used in modeling the resonant converters. This article finds that the model of the phase-shift controlled resonant converter deduced by this method might be inaccurate especially when the duty-cycle is close to 1. The reason behind it is investigated, showing that derivation of the inverter bridge
Xin Li   +4 more
openaire   +3 more sources

Dual-Polarization Dual-Parallel MZM and Optical Phase Shifter Based Microwave Photonic Phase Controller

open access: yesIEEE Photonics Journal, 2016
A new microwave photonic phase controlling structure that can realize a continuously tunable 0 $^{\circ}$ to 360 $^{\circ}$ phase shift using only one DC voltage control is presented.
T. Niu   +4 more
doaj   +1 more source

A Bidirectional DHC-LT Resonant DC-DC Converter with Research on Improved Fundamental Harmonic Analysis Considering Phase Angle of Load Impedance

open access: yesEnergies, 2022
This paper presents a novel 400 V–50 V bidirectional DHC-LT resonant DC-DC converter. By adding a resonant capacitor and an auxiliary transformer based on LLC, zero-voltage switching (ZVS) and zero-current switching (ZCS) are achieved, while the output ...
Shuhuai Zhang   +3 more
doaj   +1 more source

Giant Cross Kerr Effect for Propagating Microwaves Induced by an Artificial Atom [PDF]

open access: yes, 2012
We have investigated the cross Kerr phase shift of propagating microwave fields strongly coupled to an artificial atom. The artificial atom is a superconducting transmon qubit in an open transmission line.
Delsing, Per   +9 more
core   +2 more sources

High Efficiency and Power Tracking Method for Wireless Charging System Based on Phase-Shift Control

open access: yesEnergies, 2018
The paper presents optimal operating point tracking algorithm for wireless charging system using identical coupling coils providing us to meet simultaneously high efficiency and high transmitted power under varied load and detuning conditions.
Vladimir Kindl   +3 more
doaj   +1 more source

Load-adaptive zero-phase-shift direct repetitive control for stand-alone four-leg VSI [PDF]

open access: yes, 2015
This paper deals with a dedicated load adaptive phase compensation algorithm to be used in Repetitive Control based stand-alone 4-leg VSI. The plant model is achieved, its inherent modifications according to the operating point are highlighted and used ...
Crescimbini, Fabio   +4 more
core   +2 more sources

Acoustic impedance tuning with active disturbance rejection control

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2018
An anechoic end is desired to be implemented on an acoustic test rig. The acoustic impedance can be tuned with active control, such as phase shift control. A precise mathematical description of a system is necessary for phase shift control.
Xu Cheng   +3 more
doaj   +1 more source

Optimal Strategy of Triple Phase Shift Transient DC Bias for Dual Active Bridge DC-DC Converter [PDF]

open access: yesE3S Web of Conferences, 2020
Under the traditional phase shift control, dual active bridge DC-DC converter (DAB) has a transient bias on the inductance current when the phase shift ratio changes suddenly, which leads to increase in the current stress of switch tubes and even ...
Zhai Jingyu   +3 more
doaj   +1 more source

Constant power output characteristics of resonant wireless power transmission system [PDF]

open access: yes电力工程技术, 2022
In the process of wireless charging,the fluctuation of output power is caused by the change of battery resistance,which shortens the battery life and affects the safety of charging.
WEI Jincheng   +5 more
doaj   +1 more source

Harmonically-related diffraction gratings-based interferometer for quadrature phase measurements [PDF]

open access: yes, 2006
We demonstrate the use of shallow diffraction gratings for quadrature phase interferometry. A single shallow diffraction grating-based Michelson interferometer yields only trivial (0° or 180°) phase shift between different output ports.
Cui, Xiquan   +4 more
core   +1 more source

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