Results 11 to 20 of about 504,913 (304)
Current stress minimization for isolated dual active bridge DC–DC converter
Scientific 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
Frontiers 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
Energy 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
Optics 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
Quantum key distribution based on a Sagnac loop interferometer and polarization-insensitive phase modulators [PDF]
, 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
IEEE 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
Study of millimeter wave phase shift in 40 GHz hybrid mode locked lasers [PDF]
, 2009 An investigation into using hybrid mode-locked lasers to implement millimeter wave phase shift is presented. The phase shift is measured directly using a vector network analyzer enabling straightforward characterization of such systems.
Cryan, MJ, Khawaja, BAM
core +2 more sources
Short-range ultrasonic communications in air using quadrature modulation [PDF]
, 2009 A study has been undertaken of ultrasonic communications methods in air, using a quadrature modulation method. Simulations were first performed to establish the likely performance of quadrature phase shift keying over the limited bandwidth available in ...
Green, Roger, Hutchins, David A., Li, C.
core +1 more source
Direct Antenna Modulation for High-Order Phase Shift Keying [PDF]
IEEE 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
Comprehensive steady state analysis of bidirectional dual active bridge DC/DC converter using triple phase shift control [PDF]
, 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