Results 71 to 80 of about 557,267 (345)
2.45 GHz Class E Power Amplifier for a Transmitter Combining LINC and EER
Acta Polytechnica, 2009 A 10 W class-E RF power amplifier (PA) is designed and fabricated using a Cree GaN HEMT. The proposed PA uses an innovative input circuit to optimize band with. At 2.45 GHz the PA achieves a PAE of 60 % at an outputpower of 40 dBm.
M. Dirix, O. Koch
doaj
Power Receiving Unit for High-Power Resonant Wireless Power Transfer
Energies, 2023 A new power receiving unit (PRU) is proposed in this paper for resonant wireless power transfer (WPT), which is characterized by the capability of attracting high power from the power transmitting unit (PTU).
Ching-Yao Liu +6 more
doaj +1 more source
FEBS Letters, EarlyView.The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li +2 more
wiley +1 more source
High Efficient CMOS Class-E Power Amplifier with a New Output Power Control Scheme [PDF]
Journal of Electrical and Electronics Engineering, 2013 This paper presents the design of a novel RF power amplifier (PA) with a new output power control scheme suitable for RF-ICs and portable systems. Employing a class-E amplifier as a drivertogether with soft-switching property of the main power stage ...
MESHKIN Reza +3 more
doaj
Tau acetylation at K331 has limited impact on tau pathology in vivo
FEBS Letters, EarlyView.We mapped tau post‐translational modifications in humanized MAPT knock‐in mice and in amyloid‐bearing double knock‐in mice. Acetylation within the repeat domain, particularly around K331, showed modest increases under amyloid pathology. To test functional relevance, we generated MAPTK331Q knock‐in mice.
Shoko Hashimoto +3 more
wiley +1 more source
A Class-E Amplifier for a Loosely Coupled Inductive Power Transfer System with Multiple Receivers
Energies, 2019 We present a method for optimizing the electronic power system for a new type of photobioreactor or photoreactor in general. In the case of photobioreactors, photosynthetic active microorganisms or cells are grown. A novel concept for the illumination of
Alexander Sutor +2 more
doaj +1 more source
Development of a RF Class E amplifier to power a ferroelectric plasma thruster [abstract] [PDF]
, 2008 only availableClass E amplifiers are a special class of electronic amplifiers which are highly efficient at delivering power at high frequencies. Class E amplifiers consist of a signal generator, switch, and two LC resonant circuits.
Kovaleski, Scott D., Scott, Brett
core
An audio FIR-DAC in a BCD process for high power Class-D amplifiers [PDF]
, 2005 A 322 coefficient semi-digital FIR-DAC using a 1-bit PWM input signal was designed and implemented in a high voltage, audio power bipolar CMOS DMOS (BCD) process. This facilitates digital input signals for an analog class-D amplifier in BCD.
Annema, A.J. +5 more
core +2 more sources
Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system
FEBS Letters, EarlyView.Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley +1 more source
Preliminary study of 50 W Class-E GaN FET amplifier for 6.78 MHz capacitive wireless power transfer
Journal of Mechatronics, Electrical Power, and Vehicular Technology, 2020 A preliminary study of Class-E radio frequency power amplifier for wireless capacitive power transfer (CPT) system is presented in this paper. Due to a limitation in coupling capacitance value, a high frequency operation of switching power inverter is ...
Aam Muharam +6 more
doaj +1 more source