Results 1 to 10 of about 70,463 (263)
A Doherty Power Amplifier for Ultrasound Instrumentation [PDF]
Sensors, 2023 The ultrasound instrumentation uses linear power amplifiers with low power efficiency, generating unwanted heat and resulting in the deterioration of the echo signal quality of measured targets.
Hojong Choi
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A 28-36 GHz Optimized CMOS Distributed Doherty Power Amplifier with A New Wideband Power Divider Structure [PDF]
Journal of Electrical and Computer Engineering Innovations, 2020 Background and Objectives: In this paper, a new design strategy was proposed in order to enhance bandwidth and efficiency of power amplifier.Methods: To realize the introduced design strategy, a power amplifier was designed using TSMC CMOS 0.18um ...
M. Mirzajani Darestani +2 more
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Energies, 2023 Similar to a Doherty power amplifier (DPA), a sequential power amplifier (SPA) is mainly composed of a main amplifier, an auxiliary amplifier and a combiner.
Keyuan Yang +5 more
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Design of a Load Modulated Balanced Amplifier with a Two-Stage Control Power Amplifier [PDF]
Journal of Electromagnetic Engineering and Science, 2023 While an ideal Doherty power amplifier has a linear response, the load modulated balanced amplifier (LMBA) has a compressive response under ideal conditions.
Sagini E. Mochumbe, Youngoo Yang
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A High-Voltage and Low-Noise Power Amplifier for Driving Piezoelectric Stack Actuators
Sensors, 2020 In this paper, based on the principles of general operational amplifiers, a high-voltage operational amplifier is developed. Considering the influences of piezoelectric stack actuators on the circuit, a novel structure using the high-voltage operational ...
Lisong Xu +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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Filtering Power Amplifier With Up to 4th Harmonic Suppression
IEEE Access, 2020 Unlike conventional conception that power amplifier and filter are regarded as two separate components and designed separately, this paper presents a high efficiency power amplifier with filtering capability, which is called filtering power amplifier ...
Xiaobo Qi, Fei Xiao
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Design of an Electromagnetic Band Gap Shield for a Ku-Band VSAT Transmitter Power Amplifier [PDF]
فصلنامه علوم و فناوری فضایی, 2021 In this paper, a shielding box is designed for a Ku-band VSAT transmitter power amplifier based on an electromagnetic band gap structure. The proposed structure, is a bed of nails on the inner surface of the top wall of the box.
Mahmoud Talafi Noghani, Peiman Aliparast
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Review of Efficiency CMOS Class AB Power Amplifier Topology in Gigahertz Frequencies
ASM Science Journal, 2022 This paper reviewed the efficiency of CMOS class AB power amplifier topology especially in gigahertz frequencies. CMOS class AB power amplifier is a compromise between class A and class B in terms of linearity and efficiency between 50% to 78.5%. However,
Rohana Sapawi
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Design of 960~1 400 MHz broadband power amplifier
Dianzi Jishu Yingyong, 2023 Based on laterally diffused metal-oxide-semiconductor (LDMOS) devices, a broadband RF power amplifier for L-band was developed. The amplifier is composed of two stages of amplification and cascade connection. In order to achieve broadband and good output
Cheng Sujie +4 more
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