Results 1 to 10 of about 1,145 (179)
3D MR Thermometry Using Bi-Directional Segmented EPI for Transcranial-Focused Ultrasound. [PDF]
Magn Reson MedABSTRACT Purpose To evaluate the feasibility of replacing clinically utilized 2D thermometry with 3D segmented EPI‐based thermometry with equivalent accuracy, precision, and scan time. Methods A 3D segmented EPI (segEPI) trajectory was modified to allow readouts along both the forward and reverse direction for each phase encoding line, and the sequence
Malmberg M +5 more
europepmc +2 more sources
Discrete time domain modeling and design of current mode controlled flyback LED driver [PDF]
Scientific Reports, 2023 In this paper, modeling for a current mode controlled (CMC) flyback LED driver with a stabilizing ramp is performed in a step-by-step procedure. Discrete time state equations for the system are derived and linearized with respect to a steady-state ...
Marn-Go Kim
doaj +2 more sources
A Flexible Approach for Fat-Water Separation With Bipolar Readouts and Correction of Gradient-Induced Phase and Amplitude Effects. [PDF]
Magn Reson MedABSTRACT Purpose To develop a fat‐water separation approach that corrects bipolar readout gradient‐induced effects without additional scans and is compatible with any fat‐water separation method. Theory and Methods The proposed approach combines joint fat‐water separation of the odd and even echoes of a bipolar multi‐echo gradient echo acquisition with
Campos Pazmiño J +3 more
europepmc +2 more sources
Flyback converter controlled by Arduino Uno [PDF]
Journal of Techniques, 2019 This paper presented the design, simulation, and implantation a DC-DC step-up Flyback converter that regulates the output voltage to give the desired value 200 V 100 W and can be used in many application such as power supply.
Khalid Badr Yas, Ahmed Rashid
doaj +3 more sources
Double boost‐flyback converter [PDF]
IET Power Electronics, 2020 A high‐gain step‐up non‐isolated dc–dc converter is proposed in this study, named the double boost‐flyback converter. The topology combines two conventional boost‐flyback converters with input‐parallel and floating‐output connections. The new topology increases the static gain and reduces the input current ripple in relation to the conventional boost ...
Telles Brunelli Lazzarin +1 more
exaly +2 more sources
Dual Switching Mode Scheme for Hybrid Boost-Flyback/ Flyback Photovoltaic Microinverter Applications
IET Power ElectronicsDue to a significantly increase of switching frequency in F mode of boundary conduction mode (BCM) hybrid boost-flyback/flyback (BF/F) microinverter, simply applying discontinuous conduction mode (DCM) to F mode could be an intuitive method to solve this issue but brings a serious distortion in the fixed operation mode transition point, which would ...
Feng Zhang +5 more
openaire +2 more sources
Large-signal averaged models of the non-ideal flyback converter derived by the separation of variables [PDF]
Bulletin of the Polish Academy of Sciences: Technical Sciences, 2020 The main topic of the paper is the large signal averaged model of a switch-mode flyback power converter. The use of the large-signal averaged models of switching converters allows for fast simulation of power systems.
W. Janke, M. Bączek, J. Kraśniewski
doaj +1 more source
Discontinuous Current Mode Modeling and Zero Current Switching of Flyback Converter
Energies, 2021 The flyback converters are widely used in low power applications. The switch typically requires 600 V breakdown voltage in order to perform large step-down voltage.
Rustam Kumar +5 more
doaj +1 more source
Paralel Flyback Converter sebagai PFC pada Lampu LED menggunakan Fuzzy Type-2
Jurnal Elkomika, 2021 ABSTRAK Peralatan elektronika umumnya memerlukan catu daya berupa sumber tegangan DC yang berasal dari sumber tegangan AC 220 V yang disearahkan menggunakan penyearah gelombang penuh.
MOH. ZAENAL EFENDI +2 more
doaj +1 more source
Isolated Flying Capacitor Multilevel Converters
IEEE Open Journal of Power Electronics, 2022 This paper presents the topology known as the isolated flying capacitor multilevel flyback converter (FCMFC). The topology uses isolated flying capacitors (FC) for high-gain, DC-DC power conversion while maintaining primary-secondary isolation and ...
Santino F. Graziani +2 more
doaj +1 more source