Results 61 to 70 of about 557,267 (345)
Modular ON/OFF and Phase-Shifting for High-Speed Radio Frequency Power Modulation
IEEE Open Journal of Power Electronics, 2020 Radio frequency (RF) power amplifiers are an integral part of many academic, medical, and industrial applications. For many of these applications, the RF power needs to quickly transition from one level to another.
Kawin Surakitbovorn +1 more
doaj +1 more source
A 2.4 GHz Differential Class-E power Amplifier with on-chip Transformers for Bluetooth systems [PDF]
Engineering and Technology Journal, 2014 This work presents the design and simulation of a differential class-E Power Amplifier (PA) for class-1 Bluetooth systems in 0.13 μm RF CMOS technology. The proposed PA can deliver 21.57 dBm output power to a 50 Ω load at 2.4 GHz with 65.59 % Power-Added-
Abbas H. Issa +2 more
doaj +1 more source
Design of a differential power oscillator for 433 MHz WPT using e-GaN HEMTs
Ain Shams Engineering Journal, 2022 This paper presents a new differential power oscillator design based on a differential class-E power amplifier. The designs use high power enhancement-GaN HEMT (e-GaN) for its fast switching time, low ON resistance and wide energy band gap properties ...
Theodora M. Rezk +3 more
doaj +1 more source
Demonstration of a switchless Class E/Fodd dual-band power amplifier [PDF]
, 2002 A 250 W dual-band power amplifier belonging to the Class E/F switching amplifier family is presented. The amplifier operates in the 7 MHz and 10 MHz HAM bands, achieving 16 dB and 15 d B gain with power added efficiencies (PAE) of 92% and 87% in those ...
Bohn, Florian, Hajimiri, Ali, Kee, Scott
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The Class-E/F Family of ZVS Switching Amplifiers [PDF]
, 2003 A new family of switching amplifiers, each member having some of the features of both class E and inverse F, is introduced. These class-E/F amplifiers have class-E features such as incorporation of the transistor parasitic capacitance into the circuit ...
Aoki, Ichiro +3 more
core +1 more source
Pediatric Blood &Cancer, EarlyView.ABSTRACT Immune effector cell‐associated hemophagocytic lymphohistiocytosis‐like syndrome (IEC‐HS) is a life‐threatening hyperinflammatory toxicity distinct from cytokine release syndrome (CRS) and neurotoxicity following chimeric antigen receptor T‐cell (CAR‐T) therapy. In a single‐institution retrospective cohort of pediatric and young adult patients
Thomas J. Galletta +6 more
wiley +1 more source
Variable-Frequency Pulse Width Modulation Circuits for Resonant Wireless Power Transfer
Energies, 2021 In this paper, we develop a variable-frequency pulse width modulation (VFPWM) circuit for input control of 6.78-MHz resonant wireless power transfer (WPT) systems.
Li-Chuan Tang +3 more
doaj +1 more source
A Bibliometric Analysis of Publications in Uremic Toxins From 1991 to 2024
Therapeutic Apheresis and Dialysis, EarlyView.ABSTRACT Background Uremic toxins are a growing area of research in nephrology, with significant implications in the progression and treatment of chronic kidney disease (CKD) and the management of end‐stage kidney disease (ESKD). This bibliometric analysis aims to evaluate the global research trends, key contributors, and the impact of publications in ...
Yuh‐Shan Ho +7 more
wiley +1 more source
Organoids in pediatric cancer research
FEBS Letters, EarlyView.Organoid technology has revolutionized cancer research, yet its application in pediatric oncology remains limited. Recent advances have enabled the development of pediatric tumor organoids, offering new insights into disease biology, treatment response, and interactions with the tumor microenvironment.
Carla Ríos Arceo, Jarno Drost
wiley +1 more source
Nueva técnica de modulación de excitación para sistemas EER [PDF]
, 2015 This paper shows a novel drive modulation technique applied to a high power, high efficiency, linear Envelope Elimination and Restoration (EER) amplifier for L-Band.
Ortega González, Francisco Javier +3 more
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