Listar Microelectrónica por autor "Klimach, Hamilton Duarte"
Mostrando ítems 1-17 de 17
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All-MOSFET M-2M digital-to-analog converter for operation with very low supply voltage
Mello, Israel Sperotto de (2015) [Tesis de maestría]Desde os anos 80 a evolução dos processos de fabricação de circuitos integrados MOS tem buscado a redução da tensão de alimentação, como forma de se reduzir o consumo de energia dos circuitos. Partiu-se dos antigos 5 V, ... -
Amplificador de saída de RF CMOS Classe-E com controle de potência para uso em 2,2 GHz
Santana, Diogo Batista (2016) [Tesis de maestría]É apresentado um amplificador de potência (PA) com controle digital da potência de saída, operando na banda S de frequência (2,2 GHz). Este PA utiliza um transformador de entrada para reduzir as flutuações dos sinais de ... -
Amplifier topologies for ultra low voltage applications
Lima, Luis Henrique Rodovalho de (2016) [Tesis de maestría]Nomadic applications which cannot be recharged while at operation, such as biomedical sensors and Internet of Things applications, rely on energy harvesting from the environment. Typical supply voltages are usually higher ... -
CMOS linear RF power amplifier with fully integrated power combining transformer
Guimarães, Gabriel Teófilo Neves (2017) [Tesis de maestría]This work presents the design of a fully integrated Radio-frequency (RF) linear Power Amplifier( PA) in complementary metal-oxide silicon (CMOS) technology. In this work we analyse the challenges in CMOS PA design as well ... -
CMOS low-power threshold voltage monitors circuits and applications
Caicedo, Jhon Alexander Gomez (2016) [Tesis de maestría]A threshold voltage (VT0) monitor is a circuit that ideally delivers the estimated VT0 value as a voltage at its output, for a given temperature range, without external biases, parametric setups, curve fitting or any ... -
CMOS RFIC amplifiers design for wideband sub-3 GHz and 28-30 GHz millimeter wave applications
Costa, Arthur Liraneto Torres (2017) [Tesis]This thesis presents two hardware options to help solve the problem of spectrum saturation in wireless communications from 2014 to 2018. Both options require the operation of a Radio Frequency Integrated Circuits (RFIC) ... -
Digital-based analog processing in nanoscale CMOS ICs for IoT applications
Toledo, Pedro Filipe Leite Correia de (2022) [Tesis]The Internet-of-Things (IoT) concept has been opening up a variety of applications, such as urban and environmental monitoring, smart health, surveillance, and home automation. Most of these IoT applications require more ... -
High efficiency MPPT switched capacitor DC-DC converter for photovoltaic energy harvesting aiming for IoT applications
Zamparette, Roger Luis Brito (2017) [Tesis de maestría]This work presents a six phase Switched Capacitor (SC) DC - DC converter for photovoltaic Energy Harvesting designed in a 130 nm CMOS process for commercial motes application and Internet of Things (IoT). It tracks the ... -
Inductorless balun low-noise amplifier (LNA) for RF wideband application to IEEE 802.22
Costa, Arthur Liraneto Torres (2014) [Tesis de maestría]A new 50 MHz - 1 GHz low-noise amplifier circuit with high linearity for IEEE 802.22 wireless regional area network (WRAN) is presented. It was implemented without any inductor and offers a differential output for balun ... -
Low power SAR analog-to-digital converter for internet-of-things RF receivers
Dornelas, Helga Uchoa (2018) [Tesis de maestría]The "Internet of Things" (IoT) has been a topic of intensive research in industry, technological centers and academic community, being data communication one aspect of high relevance in this area. The exponential increase ... -
Modelamento e análise do efeito de coeficiente nulo de temperatura (ZTC) do Mosfet para aplicações análogicas de baixa sensibilidade têrmica
Toledo, Pedro Filipe Leite Correia de (2015) [Tesis de maestría]Continuing scaling of Complementary Metal-Oxide-Semiconductor (CMOS) technologies brings more integration and consequently temperature variation has become more aggressive into a single die. Besides, depending on the ... -
NanoWatt resistorless CMOS voltage references for Sub-1 V applications
Mattia Neto, Oscar Elisio (2014) [Tesis de maestría]Integrated voltage references have always been a fundamental block of any electronic system, and an important research topic that has been extensively studied in the past 50 years. A voltage reference is a circuit that ... -
Non-linear shunt regulator based on a PWM RF power detector for RFID applications
Cantalice, Rafael Santiago (2023) [Tesis de maestría]Radio Frequency Identification (RFID) is utilized in a variety of applications, includ ing tagging animals and objects to make their identification (ID) easier to read and man age, similar to a bar code or QR code. In this ... -
Projeto de circuitos CMOS analógico-digitais para amplificação e conversão de sinais eletromiográficos
Monteiro, Moacir Fernandes Cortinhas (2015) [Tesis de maestría]Neste trabalho é apresentado o projeto de uma interface analógico-digital para a aquisição de sinais eletromiográficos. O circuito consiste em um amplificador passa-banda, projetado para ter elevada linearidade e baixo ... -
Single trimming resistorless CMOS sub-bandgap voltage references for high precision applications
Lima, Vanessa Furtado de (2021) [Tesis de maestría]A voltage reference is a relevant circuit class since its output voltage should generate an accurate reference for many analog, mixed-signal, and digital applications. This type of circuit works based on the mutual ... -
System-in-package for IoT sigfox applications
Ferreira, Felipe Kalinski (2023) [Tesis de maestría]In this work, the System-in-Package (SiP) electronic circuit manufacturing technology is presented as an economically viable alternative for implementing solutions where circuits processed in different technologies need ... -
Temperature compensated subthreshold CMOS voltage references for ultra low power applications
Oliveira, Arthur Campos de (2017) [Tesis de maestría]This work proposes novel temperature-compensated subthreshold voltage references for ultra-low power and ultra-low voltage applications. The core of the proposed circuits is the self-cascode MOSFET (SCM) since it can operate ...