Results 31 to 40 of about 14,080,766 (337)
A Novel High-Power-Factor Single-Switch Electronic Ballast for Compact Fluorescent Lamps
Eletrônica de Potência, 2004 In this paper a high-power-factor electronic ballast for compact fluorescent lamps based on the class E amplifier and featuring low voltage stress across the switch is presented.
Mario Ponce +4 more
doaj +1 more source
Halo Substructure Boosts to the Signatures of Dark Matter Annihilation
Galaxies, 2019 The presence of dark matter substructure will boost the signatures of dark matter annihilation. We review recent progress on estimates of this subhalo boost factor—a ratio of the luminosity from annihilation in the subhalos to that originating the ...
Shin’ichiro Ando +2 more
doaj +1 more source
Quasi Z‐source inverter with switched‐capacitor‐inductor for enhancing boost factor
IET Power Electronics, 2021 Two structures are proposed based on the quasi Z‐source inverter (qZSI), which can significantly raise the output voltage in applications, including photovoltaic and fuel cells, in which the input voltage is low.
Jamal Abbasi Bolaghi +3 more
doaj +1 more source
Eletrônica de Potência, 2021 This paper presents the analysis of the integration of two three-phase half-controlled boost converters, operating in discontinuous conduction mode (DCM), to the auto-connected 12-pulse rectifier.
João Carlos Pelicer Junior +3 more
doaj +1 more source
Design of Self-Tuning Regulator Adaptive Cascade Control for Power Factor Correction in Boost Rectifier [PDF]
Advances in Engineering and Intelligence SystemsThe widespread use of electronic devices in various applications has led to increased harmonic distortion in power lines, resulting in a decreased power factor and reduced overall power quality. Voltage rectifiers connected to the line can be significant
Chiyo Saito, Connor Davis
doaj +1 more source
Differential Mode Active EMI Filter Design for a Boost Power Factor Correction AC/DC Converter
IEEE Journal of Emerging and Selected Topics in Power Electronics, 2019 The objective of this paper is to introduce a methodology to design an active differential mode (DM) filter at the input side of ac/dc converters to cancel DM electromagnetic interference noise within concerned frequency range.
Rajib Goswami +3 more
semanticscholar +1 more source
Applied Sciences, 2020 This paper proposes a dimmable light-emitting diode (LED) driver featuring a high power factor and zero-voltage switching on (ZVS). The circuit is obtained by integrating a boost converter and a dc-dc converter with half-bridge topology.
Hung-Liang Cheng +5 more
doaj +1 more source
A Z-Source Network Integrated Buck-Boost PFC Rectifier [PDF]
International Journal of Industrial Electronics, Control and Optimization, 2019 This paper presents a wide range gain buck-boost type PFC rectifier based on the conventional buck-boost DC-DC converter. This novel rectifier is fed by a buck-type Z-source network at the DC side with the help of an inductor smoothing the AC side input ...
Mohammad Monfard +2 more
doaj +1 more source
Antiproton constraints on dark matter annihilations from internal electroweak bremsstrahlung
, 2011 If the dark matter particle is a Majorana fermion, annihilations into two fermions and one gauge boson could have, for some choices of the parameters of the model, a non-negligible cross-section. Using a toy model of leptophilic dark matter, we calculate
A. Birkedal +26 more
core +1 more source
Dark matter conversion as a source of boost factor [PDF]
, 2011 In interacting multi-component dark matter (DM) models, the interactions between the DM components can covert relatively heavy DM components into lighter ones at late times after the thermal decoupling. As a consequence, the relic density of the lightest
Ze-Peng Liu, Yue-Liang Wu, Yu-Feng Zhou
semanticscholar +1 more source