Results 11 to 20 of about 501,031 (301)

Current stress minimization for isolated dual active bridge DC–DC converter

open access: yesScientific Reports, 2022
This paper presents a new phase-shift modulation for isolated dual active bridge (DAB) direct current–direct current (DC–DC) converter. The proposed technique aims to minimize the maximum current stress of the converter, which could directly increase the
Ahmed Rashwan   +2 more
doaj   +1 more source

Impedance-Based Stability Analysis of DAB Converters With Single-, Double-, or Cooperative Triple-Phase-Shift Modulations and Input LC Filter

open access: yesFrontiers in Energy Research, 2022
The impedance-based criterion has turned out to be a very effective tool for the stability analysis of the dual active bridge (DAB) converter with its input LC filter.
Fan Feng   +4 more
doaj   +1 more source

Proposed asymmetric phase shift modulation strategy to improve zero-voltage-switch range and transmission power range for dual active bridge converter

open access: yesEnergy Reports, 2023
The dual active bridge (DAB) DC–DC converter is typical in DC transformers to realize the voltage transformation and power transmission, which is determined by modulation. However, in traditional phase shift modulation strategies, the zero-voltage-switch
Yiting Xiao, Yuanpeng Guan, Li Qin
doaj   +1 more source

Robust phase-shift-keying Silicon photonic modulator

open access: yesOptics Express, 2012
Here we propose a robust silicon modulator that seamlessly generates phase shift keyed data. The modulator has very low insertion loss and is robust against electrical amplitude variations in the modulating signal; specifically a 50%-200% variation in modulating amplitude leads to only a π/9 variation in output optical phase, corresponding to only ± 10%
Donald, Adams   +2 more
openaire   +3 more sources

Comprehensive steady state analysis of bidirectional dual active bridge DC/DC converter using triple phase shift control [PDF]

open access: yes, 2014
Several papers have been published recently on TPS control of dual active bridge (DAB) converter, however, no complete study of the converter operation behaviour exists, that takes into account all switching modes in both charging and discharging ...
Aboushady, A.A.   +3 more
core   +3 more sources

Hybrid Duty Ratio Phase-Shift Modulation for a Si + SiC Neutral-Point-Clamped Dual-Active-Bridge Converter

open access: yesIEEE Access, 2023
The neutral-point-clamped (NPC) dual-active-bridge (DAB) converter with hybrid semiconductors (Si and SiC devices) is a promising topology for high-power energy storage systems.
Jiaxin Dong   +5 more
doaj   +1 more source

Direct Antenna Modulation for High-Order Phase Shift Keying [PDF]

open access: yesIEEE Transactions on Antennas and Propagation, 2020
An antenna capable of directly phase modulating a radio frequency carrier is discussed, designed, and measured as both an antenna and a modulator. Access point densification for the Internet of Things will be expensive in part due to the cost and inefficiency of amplifying waveforms with large peak-to-average power ratios for downlink transmission ...
Henthorn, S., Ford, K., O'Farrell, T.
openaire   +2 more sources

Controllable linear $\pi$-phase modulation in a thermal atom vapor without diffraction or absorption [PDF]

open access: yes, 2014
A scheme is proposed to achieve substantial controllable phase modulation for a probe field propagating through a thermal atomic vapor in double-$\Lambda$ configuration.
Evers, Jörg, Zhang, Lida
core   +3 more sources

A Time Difference Method for Measurement of Phase Shift between Distributed Feedback Laser Diode (DFB-LD) Output Wavelength and Intensity

open access: yesSensors, 2015
A time difference method to conveniently measure the phase shift between output wavelength and intensity of distributed feedback laser diodes (DFB-LDs) was proposed.
Yongning Liu   +5 more
doaj   +1 more source

Quantum key distribution based on a Sagnac loop interferometer and polarization-insensitive phase modulators [PDF]

open access: yes, 2006
We present a design for a quantum key distribution(QKD) system in a Sagnac loop configuration, employing a novel phase modulation scheme based on frequency shift, and demonstrate stable BB84 QKD operation with high interference visibility and low quantum
Huang, Lei-Lei   +3 more
core   +2 more sources

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