Results 51 to 60 of about 336,702 (243)
A Turn-Ratio-Changing Half-Bridge CLLC DC–DC Bidirectional Battery Charger Using a GaN HEMT
Energies, 2023 This paper presents a 250 kHz bidirectional battery charger circuit using a GaN HEMT. The charger is subjected to a high-/low-side constant voltage at 200 V/20 V. The charger circuit is a hybrid of the LLC and flyback circuit topologies.
Yueh-Tsung Shieh +8 more
doaj +1 more source
Analysis of Leakage Inductance for Toroidal Type Flyback Transformer [PDF]
The Transactions of the Korean Institute of Power Electronics, 2014 This paper presents an analysis of a leakage inductance for a toroidal type flyback transformer. The equation to calculate the leakage inductance is derived using the MMF diagram of the transformer. The analysis for the different types of the cores and winding structures is also provided using the FEM simulation.
Chang-Soo Park +3 more
openaire +1 more source
Electronics, 2019 Large-scale battery cells are connected in series, which inevitably leads to a phenomenon that the cell voltage is unbalanced. With a conventional equalizer, it is challenging to maintain excellent characteristics in terms of its size, design cost, and ...
Fengdong Shi, Dawei Song
semanticscholar +1 more source
A novel high frequency current-driven synchronous rectifier applicable to most switching topologies [PDF]
, 2001 A novel current-driven synchronous rectifier is presented in this paper. With the help of current sensing energy recovery circuit, the proposed current-driven synchronous rectifier can operate at high switching frequency with high efficiency.
Liu, JCP, Pong, MH, Poon, FNK, Xie, X
core +1 more source
IEEE Access, 2022 Investigation of active-clamped flyback (ACF) dc-dc converter 57W used as the auxiliary power-supply (APS) of an inductive-charging system (ICS) is presented. The ACF was supplied from variable-dc-link 800V which was challenge for its design.
Darko. Vracar, Predrag V. Pejovic
doaj +1 more source
Sustained arc ignition system [PDF]
, 1977 Circuitry for maintaining an arc or spark across a spark gap for a desired length of time is disclosed. A high voltage, direct current source is connected in series with a secondary winding of a high voltage, stepup transformer or coil and a spark gap ...
Birchenough, A. G.
core +1 more source
Highly Reproducible, Vendor‐Agnostic, Motion‐Insensitive Liver PDFF Mapping at 0.55T, 1.5T, and 3T
Magnetic Resonance in Medicine, EarlyView.ABSTRACT Purpose To develop and validate a vendor‐agnostic, motion‐insensitive proton‐density fat‐fraction (PDFF) quantification method. Methods Flip‐angle‐modulated (FAM) 2D chemical‐shift‐encoded (CSE) MRI for PDFF quantification was implemented in both the vendor‐agnostic platform Pulseq (“Pulseq‐FAM”) and one vendor‐specific platform (“GE‐specific ...
Jiayi Tang +27 more
wiley +1 more source
A simple DC-UPS based in forward-forward topology, design and simulation [PDF]
, 2008 This paper presents the analysis, design and simulation of a simple DC-UPS converter with integrated back-up and automatic transition. This converter makes automatic transitions between the main AC and the battery when a failure occurs; and it delivers ...
Esparza González, Mario S. +3 more
core +1 more source
3D MR Thermometry Using Bi‐Directional Segmented EPI for Transcranial‐Focused Ultrasound
Magnetic Resonance in Medicine, Volume 95, Issue 4, Page 2106-2116, April 2026.ABSTRACT 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
Michael Malmberg +5 more
wiley +1 more source
Analysis of Modular DCM Flyback Converters in Input Parallel Connections with Parametric Mismatches
Eletrônica de Potência, 2019 This paper analyzes the effects of parameter mismatches in the balance mechanism of modular DC-DC Flyback converters operating in discontinuous conduction mode. The natural current and voltage distributions among modules are evaluated when mismatches on
Vinícius B. Fuerback +3 more
doaj +1 more source