Buscar
Mostrando ítems 81-90 de 1040
Amplificador de instrumentação em modo corrente com entrada e saída rail-to-rail
(Universidade Federal de Santa MariaBRCiência da ComputaçãoUFSMPrograma de Pós-Graduação em Informática, 2009-01-05)
This dissertation is aimed at the development of a current mode instrumentation amplifier (CMIA) with a high common mode input range. This characteristic is obtained due
to the rail-to-rail operational amplifiers (opamps). ...
Pré-amplificador para microfone condensador
(Universidade Tecnológica Federal do ParanáPato BrancoBrasilDepartamento Acadêmico de ElétricaEngenharia ElétricaUTFPR, 2017-11-13)
The present work is mainly focused on the design and implementation of integrated professional audio systems. The purpose of such integration is promote the sound equalization and reproduction on a headphone from a condenser ...
Análise e projeto de um amplificador de potência classe G para audiofrequências
(Universidade Tecnológica Federal do ParanáPonta GrossaBrasilDepartamento Acadêmico de Engenharia ElétricaEngenharia ElétricaUTFPR, 2021-08-19)
This work aims to present the analysis and project of a power amplifier whose output stage has a class G operation. Fundamental part of the analysis refers to the efficiency of the output stage both for sinusoidal and music ...
Seismic noise analysis with low-cost variable gain recorder
(2021)
This paper presents the design and implementation of a seismic noise analysis recorder. Specifically, the system has three main blocks. A configurable gain amplifier, a microcontroller for data acquisition and storage, and ...
Design of a LNA and a Gilbert Cell Mixer MMICs with a GaAs PHEMT technology
(1999-12-01)
The design of a Gilbert Cell Mixer and a low noise amplifier (LNA), using GaAs PHEMT technology is presented. The compatibility is shown for co-integration of both block on the same chip, to form a high performance 1.9 GHz ...
Pico-A/V range CMOS transconductors using series-parallel current division
(IET, 2003)
A simple design procedure for very small transconductors withextended linear range, using series-parallel division of current, ispresented. It is based on a previously reported one-equation all-region transistor model. ...