Results 11 to 20 of about 70,463 (263)
Power Amplifier Design for Ultrasound Applications [PDF]
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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Design of Inner Matching Three-Stage High-Power Doherty Power Amplifier Based on GaN HEMT Model [PDF]
MicromachinesThis paper introduces the structure and characteristics of an internal-matching high-power Doherty power amplifier based on GaN HEMT devices with 0.25 μm process platforms from the Nanjing Electronic Devices Institute.
Renyi Li +3 more
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An Inverse Class-E Power Amplifier for Ultrasound Transducer [PDF]
Sensors, 2023 An inverse Class-E power amplifier was designed for an ultrasound transducer. The proposed inverse Class-E power amplifier can be useful because of the low series inductance values used in the output matching network that helps to reduce signal ...
Hojong Choi
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Results in Physics, 2021 In this paper, a 420 km Optical transport network (OTN) transmission system of 8 × 100 Gbit/s signals was achieved with amplifier combination of a low cost second order Raman amplifier and an enhanced remotely pump amplifier.
Ronghua Chi, Leilei Li
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Design of a Doherty Power Amplifier for GSM Systems
Tikrit Journal of Engineering Sciences, 2011 This paper presents the design and analysis of Doherty power amplifier. The Doherty amplifier is used in a base station for mobile system because of its high efficiency.
Saad Wasmi Osman Luhaib
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IEEE Access, 2020 Active magnetic suspension bearing technology has been widely used in the field of high-speed motors because of its many technical advantages. A switching power amplifier is an important part of active magnetic bearing.
Yaping He, Xi He, Jien Ma, Youtong Fang
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Design of miniaturized high efficiency power amplifier based on harmonic suppression
Dianzi Jishu Yingyong, 2023 To overcome conventional VHF power amplifiers′ shortcomings of bulky size, low efficiency, and EM interferences due to output harmonics, a miniaturized, high power and high efficiency power amplifier working in VHF band is designed by using lumped ...
Liu Tianyun, Liu Shaobin
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Sensors, 2019 The linear power amplifier with high-output power in the broadband frequency is the critical component required by exciting the electromagnetic acoustic transducer (EMAT) to generate ultrasonic guided wave (UGW).
Jinjie Zhou, Yang Zheng
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Energies, 2022 A novel Class-C pulsed power amplifier with a voltage divider integrated with a high-voltage transistor and switching diodes is proposed to reduce DC power consumption and increase the maximum output power for handheld ultrasound instruments.
Hojong Choi
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Compact 50 W All-Solid-State Picosecond Laser System at 1 kHz
Applied Sciences, 2020 Compact, stable, high-power and high repetition rate picosecond laser systems are excellent sources for optical parametric chirped pulse amplification systems and laser satellite ranging systems. Compared with the traditional complex high-power amplifier,
Shuaishuai Yang +4 more
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