Results 81 to 90 of about 39,958 (213)
Applied SciencesElectric propulsion ships have garnered significant attention for addressing the environmental impact associated with conventional shipping vessels. Their performance critically depends on the inverters that control propulsion motors.
Eui-cheol Shin, Hyeon-gyo Chae, Chan Roh
doaj +1 more source
Experimental investigation of semiconductor losses in cryogenic DC-DC converters [PDF]
, 2008 As high-temperature superconductor technology approaches commercial applications, for example superconducting magnetic energy storage, superconducting fault current limiters, and superconducting rotary machines for marine propulsion, it is timely to ...
Jia, Chunjiang
core
Low Output Current Ripple Ultra High Step-Down Two-Phase Buck Converter With Low Switching Losses
This article introduces a new two-switch step-down dc-dc converter. By integrating Valley-Fill circuit with coupled inductors, and using the cross-coupled inductor technique, the proposed converter achieves a substantial reduction in the output current ...
Jamil, Mohsin +5 more
core +1 more source
A PFC boost converter with reduced switching losses operating at a fixed switching frequency
, 2022 A single-phase fixed-frequency operated power factor correction circuit with reduced switching losses is proposed. The circuit uses the combination of a boost converter with an added clamp-switch, a pulse wave shaping circuit, and a standard control IC ...
Ulrich, Burkhard
core
Wage changes through job mobility in Europe: A multinomial endogenous switching approach [PDF]
This paper presents evidence on the relationship between job mobility and wage mobility for some European countries using the European Community Household Panel (1994- 2001).
José Ignacio García Pérez +1 more
core
, 2018 Today’s power converter designs, especially in the automotive or the all-electrical aircraft industry, aim at higher power densities. These goals can be achieved with an increased integration level and a transition from silicon insulated-gate bipolar ...
Engelmann, Georges
core +1 more source
Soft Switching Approach to Reducing Transition Losses in an On/Off Hydraulic Valve [PDF]
, 2009 A method for significantly reducing the losses associated with an on/off controlled hydraulic system is proposed. There has been a growing interest in the use of on/off valves to control hydraulic systems as a means of improving system efficiency.
Perry Y. Li, Michael B. Rannow
core +1 more source
Al-Khawarizmi Engineering JournalThis study examines the thermal and electrical characteristics of insulated gate bipolar transistors (IGBTs) in boost direct current (DC)–DC converters used in photovoltaic systems with respect to how switching and conduction losses vary under different
Muhanad Almawlawe
doaj +1 more source
On Dynamic Effects Influencing IGBT Losses in Soft-Switching Converters
, 2011 Two different dynamic effects influencing the IGBT losses in soft switching converters are demonstrated. The first one, The Dynamic tail-charge effect shows that the tail-charge is dependent not only on the absolute value of the current at turn-off but ...
Hans-Peter Nee +3 more
core +1 more source
Comparative Dynamic Performance Evaluation of Si IGBTs and SiC MOSFETs
EnergiesPower semiconductor devices are fundamental components in modern electronic power conversion. In applications demanding high power density and efficiency, the choice between silicon (Si) IGBTs and Silicon Carbide (SiC) MOSFETs is critical.
Jamlick M. Kinyua, Mutsumi Aoki
doaj +1 more source