Results 11 to 20 of about 6,815,632 (371)
Optics Express, 2019 Transverse mode instability (TMI) is compared to thermal lensing (TL) power threshold and used to derive power scaling limits in high-power fiber amplifiers. The TMI power threshold is shown to be ~65% of the TL one and dominates power scaling.
M. Zervas
semanticscholar +2 more sources
Wide Bandwidth Class-S Power Amplifiers for Ultrasonic Devices. [PDF]
Sensors (Basel), 2020 Wide bandwidth ultrasonic devices are a necessity in high-resolution ultrasonic systems. Therefore, constant output voltages need to be produced across the wide bandwidths of a power amplifier.
You K, Choi H.
europepmc +2 more sources
Design of Dual Continuous-Mode Class-J Power Amplifiers with Harmonic Matching Networks for X and Ku Bands. [PDF]
Micromachines (Basel)In this article, two wideband high-efficiency Class-J power amplifiers operating in X and Ku bands, respectively, are designed based on continuous mode.
Yuan Y, Zhao X, Fan J, Yu Z.
europepmc +2 more sources
A Novel Analog Predistortion Linearizer Based on a Schottky diode for Communication Applications [PDF]
Journal of Electrical and Computer Engineering Innovations, 2022 Background and Objectives: In order to compensate the nonlinearity, several linearization approaches such as feedback, feed-forward, and predistortion have been proposed.
R. Karimzadeh Baee +3 more
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Penguat Jembatan dengan Untai Pembalik Fase
Elektrika, 2022 The maximum output voltage of the audio amplifier is limited to the magnitude of the power supply voltage of the power transistor or the operational amplifier on the final amplifier. This limits the maximum power of the audio amplifier output. The way to
Budihardja Murtianta, Erlina Sari
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Narrow Linewidth 49 W All Fiber Linearly Polarized Picosecond Laser Operating at 1016 nm
IEEE Photonics Journal, 2022 An all fiber linearly polarized narrow linewidth pulsed fiber laser operating at 1016 nm is demonstrated in a master oscillator power amplification (MOPA) configuration.
Chao Zhang +3 more
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1 kW MHz Wideband Class E Power Amplifier
IEEE Open Journal of Power Electronics, 2022 Class E power amplifiers are widely used in high-frequency applications due to their simplicity and use of only one ground-referenced switch. However, Class E power amplifiers are usually tuned to operate at a fixed frequency due to their resonant nature.
Jiale Xu, Zikang Tong, Juan Rivas-Davila
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Majlesi Journal of Electrical Engineering, 2023 A Harmonic Control Circuit (HCC) is one of the most important blocks in the Class-F power amplifiers, which should pass the even harmonics and suppress the odd harmonics.
Rasoul Azadi +3 more
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Power Amplifier Design for Ultrasound Applications
Micromachines, 2023 A design analysis of the power amplifiers developed for ultrasound applications was conducted because ultrasound applications require different types of power amplifiers, which are one of the most critical electronic components in ultrasound systems.
Hojong Choi
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Prelinearized Class-B Power Amplifier for Piezoelectric Transducers and Portable Ultrasound Systems
Sensors, 2019 Portable ultrasound systems typically suffer from unwanted heat and limited battery life, resulting in reduced system performance or the applicable number of piezoelectric transducer elements.
Hojong Choi
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