Results 91 to 100 of about 15,145 (245)

Accurate ZVS Analysis of a Full-Bridge T-Type Resonant Converter for a 20-kW Unfolding-Based AC-DC Topology

open access: yesIEEE Open Journal of Power Electronics
Unfolding-based single-stage ac-dc converters offer benefits in terms of efficiency and power density due to the low-frequency operation of the Unfolder, resulting in negligible switching losses.
SHUBHANGI GURUDIWAN   +3 more
doaj   +1 more source

Circulating Current and ZVS-on of a Dual Active Bridge DC-DC Converter: A Review

open access: yesIEEE Access, 2019
Dual active bridge (DAB) dc-dc converters have several attractive features including auto-adjust bidirectional power flow, wide voltage gain range, and zero voltage switching (ZVS)-on capability.
Shuai Shao   +4 more
doaj   +1 more source

Success in the University Admission Process in Germany: Regional Provenance Matters [PDF]

open access: yes
School education in Germany is under the responsibility of the federal states and as a consequence average grades differ widely across regions. Since school leavers apply nationwide for admission to university, regional provenance may thus matter a lot ...
Nadja Dwenger, Sebastian Braun
core  

Analysis and Design of Filament Power Supply with Voltage-Fed Single-Switch ZVS Inverter

open access: yesE3S Web of Conferences, 2018
In this paper, an off-line voltage-fed single-switch zero-voltage-switching (ZVS) inverter is analyzed and designed for the filament power supply of cooker magnetrons.
Yueh-Ru Yang
doaj   +1 more source

Stability Testing and Analysis of a PMAD DC Test Bed for the Space Station Freedom [PDF]

open access: yes
The Power Management and Distribution (PMAD) DC Test Bed at the NASA Lewis Research Center is introduced. Its usefulness to the Space Station Freedom Electrical Power (EPS) development and design are discussed in context of verifying system stability ...
Brush, Andrew S., Button, Robert M.
core   +1 more source

Design of a High Power Three-Phase ZVS Push-Pull Converter [PDF]

open access: bronze, 2011
Jun‐Sung Park, Sangwon Lee, Sewan Choi
openalex   +1 more source

A Reflex Charger with ZVS and Non-Dissipative Cells for Photovoltaic Energy Conversion

open access: yesEnergies, 2015
In this paper, a reflex charger with zero-voltage-switching (ZVS) and non-dissipative cells for photovoltaic (PV) energy conversion is presented. The proposed reflex charger has the following advantages: (1) A ZVS cell is incorporated to reduce the ...
Cheng-Tao Tsai   +3 more
doaj   +1 more source

EMI-Silent Operation of Triple Active Bridge Converters With Online Model-Free ZVS Optimization and RMS Current Reduction

open access: yesIEEE Open Journal of Industry Applications
Triple active bridge converter, an isolated multiport converter, connects three dc ports via a three-terminal high-frequency transformer, enabling zero voltage switching (ZVS) without the need for additional snubber circuits.
Ahmed A. Ibrahim   +5 more
doaj   +1 more source

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