Results 251 to 260 of about 288,937 (288)

Improved Direct-Coupled High-Bandwidth Voltage Amplifier for B-H Characterization of Magnetic Materials

IEEE transactions on industry applications
B-H characteristics of magnetic core materials are an essential input to the design and performance evaluation of electrical machines, electromagnetic bearings, and, magnetic components in power converters.
Aditya Raj, S. S. Ahmad, G. Narayanan
semanticscholar   +1 more source

A direct-coupled hybrid IC amplifier with 1-ns rise time

IEEE Journal of Solid-State Circuits, 1969
This paper describes the design and operation of a wide-band direct-coupled pulse amplifier, with a voltage gain of 10 and a rise time of 1 ns. Computer-aided analysis and simulation are used to optimize the design and to predict the performance of the amplifier. Good agreement is obtained between the predicted and experimental results.
H.G. Jackson, J.A. Mattis
openaire   +1 more source

High-gain direct-coupled matrix distributed amplifier using active feedback topology

2004 IEEE International SOI Conference (IEEE Cat. No.04CH37573), 2005
A high-gain matrix distributed amplifier (DA) was developed using a commercial GaAs PHMET foundry for 40-Gb/s baseband applications. Two tiers of matrix DA are directly coupled using a lumped DC level-shift circuit. The DC bias level of the second tier can be tuned using the level-shift circuit for optimum gain.
null Won Ko, null Youngwoo Kwon
openaire   +1 more source

Noise optimization of a GaAs HBT direct-coupled low noise amplifier

1996 IEEE MTT-S International Microwave Symposium Digest, 2002
This paper describes a GaAs HBT direct-coupled (inductor-less matched) MMIC LNA which was optimized for noise figure by careful selection of HBT device size, bias, and thorough consideration of its gamma opt characteristics. An optimum HBT device size and bias was determined which offers a device minimum NF (NF/sub min/) of 0.9 dB at 2 GHz.
K.W. Kobayashi, L.T. Tran, A.K. Oki, D.C. Streit   +3 more
openaire   +1 more source

Compact GaN-Based DCFL Amplifier With Direct-Coupled Loads for Wide-Temperature Applications

IEEE Electron Device Letters
Compact amplifier with stable performance across wide temperature ranges is promising for the high-temperature electronics. This work aims to demonstrate a direct-coupled FET logic (DCFL)-based amplifier using monolithic D-mode GaN HEMT loads, optimized ...
S. Singh, Y. Singh Chauhan, Tian-Li Wu
semanticscholar   +1 more source

Design and Performance of Monolithic GaAs Direct-Coupled Preamplifiers and Main Amplifiers

IEEE Transactions on Microwave Theory and Techniques, 1985
The design and performance of a GaAs direct-coupled preamplifier and main amplifier is described. The amplifiers are fabricated by the self-aligned implantation for n/sup +/ -Iayer technology (SAINT) process. The developed preamplifiers have 13-dB gain, 3-GHz bandwidth, and 4.8-dB noise figure for the one-stage amplifier, and 22-dB gain, 2.7-GHz ...
Y. Imai, N. Kato, K. Ohwada, T. Sugeta
openaire   +1 more source

A High-Input Impedance Chopper Capacitively Coupled Instrumentation Amplifier With DC Offset Compensation

International Conference on Conceptual Structures
An improved chopper capacitively coupled instrumentation amplifier (CCIA) is proposed for electrocardiogram (ECG) signal acquisition applications. Impedance boosting techniques improve the input impedance. The direct current servo loop (DSL) along with a
Yifeng Yao, Zhijian Li, Zhijian Chen, Zhaohui Wu, Bin Li   +4 more
semanticscholar   +1 more source

Direct-coupled thermocouple amplifiers for measurements in geophysics and meteorology

Geofisica pura e applicata, 1956
Following a brief discussion of known methods of electronic amplification, this paper describes new thermocouple amplifiers using junction-type transistors, and their theoretical and practical design. The apparatus amplify a thermocouple voltage or other input signals of any impedance such that an ordinary pointer-type galvanometer or recorder can be ...
openaire   +1 more source

An S-band VGA with Low Phase Variation Utilizing a Cross-Coupled Neutralization and LC resonance for Direct-to-Device Satellite Communication

Latin American Symposium on Circuits and Systems
This paper presents a variable gain amplifier with low phase variation for D2D satellite communication systems using the S-band. The proposed chip is fabricated in a 65nm CMOS process.
Yuya Takahashi, Shunya Watanabe, Keito Yuasa, Atsushi Shirane   +3 more
semanticscholar   +1 more source

Design, performance, and layout of GaAs monolithic broadband direct-coupled amplifiers

SPIE Proceedings, 1996
In this paper we present a design procedure of high frequency amplifiers that uses the gain peaking technique to extend their bandwidth. Namely, the performance of single inverters with and without gain peaking elements, was compared theoretically.
openaire   +1 more source