Author profile: González Carvajal, Ramón
Institutional data
| Name | González Carvajal, Ramón |
| Department | Ingeniería Electrónica |
| Knowledge area | Tecnología Electrónica |
| Professional category | Catedrático de Universidad |
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Statistics
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No. publications
63
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No. visits
6154
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No. downloads
11190
| Publications |
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Article
 ±0.3V Bulk-Driven Fully Differential Buffer with High Figures of Merit
(MDPI, 2022-09-01)
A high performance bulk-driven rail-to-rail fully differential buffer operating from ±0.3V supplies in 180 nm CMOS technology ... |
Final Degree Project
Diseño y desarrollo de un sistema de precintado remoto sobre FreeRTOS para sistemas IoT
(2022-01-01)
Las comunicaciones inalámbricas, han experimentado una gran expansión en los últimos años en nuestras vidas y se hace casi ... |
Article
Industry 4.0: A Proposal of Paradigm Organization Schemes from a Systematic Literature Review
(MDPI, 2022-01-01)
Currently, the concept of Industry 4.0 is well known; however, it is extremely complex, as it is constantly evolving and ... |
Final Degree Project
Reconocimiento de objetos mediante técnicas de visión por computador y aprendizaje automático
(2022-01-01)
Con la llegada de la denominada Industria 4.0 comienza a haber una demanda por sistemas de visión e inferencia basados en ... |
Master's Final Project
Metrics system
(2022-01-01)
La medición y el monitoreo de sistemas resultan prácticamente imprescindibles en un desarrollo maduro y es ahí donde nos ... |
Article
Super-Gain-Boosted AB-AB Fully Differential Miller Op-Amp With 156dB Open-Loop Gain and 174MV/V MHZ pF/µW Figure of Merit in 130nm CMOS Technology
(Institute of Electrical and Electronics Engineers Inc., 2021-04-12)
A fully differential Miller op-amp with a composite input stage using resistive local common-mode feedback and regulated ... |
Article
Energy-Efficient Amplifiers Based on Quasi-Floating Gate Techniques
(MDPI, 2021-04-01)
Energy efficiency is a key requirement in the design of amplifiers for modern wireless applications. The use of quasi-floating ... |
Article
An Enhanced Gain-Bandwidth Class-AB Miller op-amp with 23,800 MHz·pF/mW FOM, 11-16 Current Efficiency and Wide Range of Resistive and Capacitive Loads Driving Capability
(Institute of Electrical and Electronics Engineers Inc., 2021-01-01)
A compact power-efficient class-AB Miller op-amp is introduced. It uses a simple auxiliary circuit that enhances the ... |
Final Degree Project
Estudio de la arquitectura DDS y diseño de una solución aplicada sobre arquitectura genérica de vehículos
(2021-01-01)
En este proyecto se pretende establecer una red de comunicaciones en el entorno de un vehículo genérico, basado en tecnologías ... |
Final Degree Project
Diseño y desarrollo de un driver de control para la estación SPS30 y su integración en FreeRTOS
(2021-01-01)
De acuerdo con la EPA (Agencia de Protección Ambiental de Estados Unidos), el tamaño de las partículas está directamente ... |
Final Degree Project
Diseño de un HUB Wireless M-Bus-NbIoT
(2021-01-01)
El agua es un recurso indispensable para la vida en nuestro planeta y para la gran mayoría de las actividades económicas ... |
Final Degree Project
Instrumentación inteligente no invasiva para procesos en ganadería y agricultura
(2021-01-01)
La fiebre en los cerdos y el estrés hídrico que sufren las plantas son algunos ejemplos de las preocupaciones de la industria ... |
Final Degree Project
Diseño de etapas amplificadoras de bajo consumo para señales ultrasónicas
(2021-01-01)
Las señales ultrasónicas o ultrasonidos son una serie de ondas mecánicas, normalmente longitudinales, cuya frecuencia está ... |
Master's Final Project
Creación de una herramienta basada en datos reales obtenidos por telemetría para la electrificación de flotas
(2021-01-01)
La transición hacia una movilidad eléctrica es uno de los objetivos mundiales en la lucha contra el cambio climático y la ... |
Final Degree Project
Desarrollo firmware de un driver de control para el módulo Sigfox AX-SF10 ANT21-868
(2021-01-01)
El trabajo que leerá a continuación presenta el desarrollo firmware de un sistema inalámbrico, cuya funcionalidad será ... |
Article
Low-Voltage 0.81mW, 1-32 CMOS VGA with 5% Bandwidth variations and 38dB DC rejection
(Institute of Electrical and Electronics Engineers (IEEE), 2020-06-01)
A CMOS low-voltage amplifier with approximately constant bandwidth and DC rejection is introduced. The design is based on ... |
| PhD Thesis |
Article
Power Efficient Simple Technique to Convert a Reset-and-Hold Into a True-Sample-and-Hold Using an Auxiliary Output Stage
(IEEE, 2020-01-01)
A technique to implement true-sample-and-hold circuits that hold the output for almost the entire clock cycle without ... |
Final Degree Project
Diseño de tests unitarios para el TWR-KM34Z50M
(2020-01-01)
El avance imparable de la tecnología nos lleva a incorporarla a mundos en los que hasta hace relativamente poco resultaba ... |
Master's Final Project
Design and Implementation of a Drone Quadcopter Using Low Cost Microcontrollers
(2020-01-01)
The objective of this project was defined as the design and implementation of a drone quadcoper using low cost microcontrollers. As ... |
Final Degree Project
Desarrollo de soluciones IoT con Mbed
(2019-01-01)
El Internet de las cosas o IoT está cobrando cada vez más importancia y es palpable viendo la cantidad de dispositivos ... |
Article
±0.25-V Class-AB CMOS Capacitance Multiplier and Precision Rectifiers
(IEEE (Institute of Electrical and Electronics Engineers), 2019-01-01)
Reduction of minimum supply requirements is a crucial aspect to decrease the power consumption in VLSI systems. A ... |
Article
Passive RFID-Based Inventory of Traffic Signs on Roads and Urban Environments
(MDPI, 2018-07-01)
This paper presents a system with location functionalities for the inventory of traffic signs based on passive RFID ... |
Article
Compact Embedded Wireless Sensor-Based Monitoring of Concrete Curing
(MDPI, 2018-03-15)
This work presents the design, construction and testing of a new embedded sensor system for monitoring concrete curing. A ... |
Article
An Op-Amp Approach for Bandpass VGAs With Constant Bandwidth
(IEEE (Institute of Electrical and Electronics Engineers), 2018-01-01)
Two approaches to implement variable gain amplifiers based on Miller op-amps are discussed. One has true constant bandwidth ... |
Article
An Amplified Offset Compensation Scheme and its Application in a Track and Hold Circuit.
(IEEE (Institute of Electrical and Electronics Engineers), 2018-01-01)
This brief proposes a fully differential track and hold circuit using a new dc offset compensation scheme. It stores an ... |
Article
CMOS First-Order All-Pass Filter With 2-Hz Pole Frequency
(IEEE (Institute of Electrical and Electronics Engineers), 2018-01-01)
A CMOS fully integrated all-pass filter with an extremely low pole frequency of 2 Hz is introduced in this paper. It has ... |
Article
A Highly Efficient Composite Class-AB-AB Miller Op-Amp With High Gain and Stable From 15 pF Up To Very Large Capacitive Loads
(IEEE (Institute of Electrical and Electronics Engineers), 2018-01-01)
In this paper, a highly power-efficient class-AB–AB Miller op-amp is discussed. The structure uses gm enhancement based ... |
Article
Super class AB RFC OTA with adaptive local common-mode feedback
(IET (Institution of Engineering and Technology), 2018-01-01)
A super class AB recycling folded cascode operational transconductance amplifier is presented. It employs local common-mode ... |
Article
Super class AB RFC OTA using nonlinear current mirrors
(Institution of Engineering and Technology (IET), 2018-01-01)
An alternative approach to the design of super class AB recycling folded cascode operational transconductance amplifiers ... |
Article
High current efficiency classAB OTA with high open loop gain and enhanced bandwidth
(IEICE, 2017-01-01)
An efficient class-AB OTA with enhanced output current, slew rate, open loop gain, and gain bandwidth is presented. The ... |
PhD Thesis
Aportaciones al diseño de ADCs en tecnologías nanométricas y para entornos de alta radiación
(2015-11-30)
El trabajo presentado a lo largo de esta Tesis Doctoral está intrínsecamente relacionado con la evolución del diseño de ... |
Presentation
Smart Navigation System for the Port of Seville
(2015-09-01)
This paper focuses in the development of an information platform for rivers and integrated navigation aid system in ... |
Presentation
Smart ICTs for the enhancement of traffic logistics in the Port of Seville
(2015-09-01)
This paper focuses in the optimization of intermodal transport by the development of a freight geolocation and telecontrol ... |
Article
R&D spin-off models in Spain
(BazTech, 2013-01-01)
The recent years have seen increasing interest in the issues of technology transfer, as a result of which, in numerous ... |
PhD Thesis
Diseño de convertidores A/D pipeline de baja tensión de alimentación y bajo consumo
(2012-01-01)
1.2 Objetivos ... Establecer las especificaciones que debe cumplir el prototipo para poder ser incluido en un front-end ... |
Article
Soluciones para la monitorización de trabajadores en obra mediante tecnologías inalámbricas
(2012-01-01)
La prevención activa puede implementar diferentes barreras de seguridad. El estado de la técnica de los sistemas de ... |
Presentation
0.13-µm CMOS tunable transconductor based on the body-driven gain boosting technique with application in Gm-C filters
(2011-01-01)
We present a low-voltage low-power CMOS tunable transconductor exploiting body gain boosting to increase the small-signal ... |
Article
Design of two-stage class AB CMOS buffers: a systematic approach
(2011-01-01)
A systematic approach for the design of two-stage class AB CMOS unity-gain buffers is proposed. It is based on the inclusion ... |
Presentation
A low-pass filter with automatic frequency tuning for a bluetooth receiver
(2010-01-01)
A third-order Gm-C Chebyshev low-pass filter with high linearity and automatic frequency programmability has been designed. ... |
Presentation
CMOS operational amplifiers with continuous-time capacitive common mode feedback
(2010-01-01)
A simple and power efficient approach for the implementation of continuous-time common mode feedback networks using a ... |
Presentation
Accurate dynamic-feedback CMOS cross-quad suitable for low-voltage operation
(2009-01-01)
This paper presents the implementation of a crossquad circuit suitable for low-voltage operation. The proposed cell exploits ... |
Presentation
New high performance second generation CMOS current conveyor
(2009-01-01)
A new high performance second-generation CMOS current conveyor architecture is presented. It is built using a differential ... |
Article
Low-voltage tunable pseudo-differential transconductor with high linearity
(2009-01-01)
A novel tunable transconductor is presented. Input transistors operate in the triode region to achieve programmable ... |
Presentation
Rail-to-rail class AB CMOS tunable transconductor with -52dB IM3 at 1MHz
(2009-01-01)
A novel CMOS tunable transconductor is presented. The circuit operates in classAB hence featuring power efficiency. The ... |
Presentation
A novel switched capacitor frequency tuning technique for continuous-time Gm-C filters
(2009-01-01)
A novel approach for the automatic frequency tuning of Continuous Time Filters is presented. This approach is based on a ... |
Presentation
A tunable floating-gate CMOS transconductor based on current multiplication
(2009-01-01)
In this paper a novel transconductor based on floating gate techniques that performs current multiplication for tuning ... |
Presentation
Tunable class AB CMOS Gm-C channel filter for a bluetooth zero-IF receiver
(2009-01-01)
A novel tunable third order low-pass Gm-C filter is introduced. Programmable transconductors operating in class AB have ... |
| Chapter of Book |
Presentation
Low frequency, current mode programmable KHN filters using large-valued active resistors
(2007-01-01)
The present work proposes a new current-mode, programmable Kerwin Huelsman Newcomb (KHN) filter suitable for very low ... |
Presentation
A very compact KHN filter with multidecade tuning
(2007-01-01)
A very compact implementation of a multifunction Kerwin Huelsman Newcomb (KHN) filter that can be frequency tuned almost ... |
Article
Low-voltage wide gm adjustable range highly linear bicmos OTA
(2005-01-01)
A low distortion low-voltage BiCMOS OTA with wide gm adjustment range and constant input range is presented. It is based ... |
Article
A true low voltage class-AB current mirror
(2005-01-01)
Class-AB circuits, which are able to deal with currents which are orders of magnitude larger than their quiescent current, ... |
Article
Biasing CMOS amplifiers using MOS transistors in subthreshold region
(2004-01-01)
The implementation of large-valued floating resistive elements using MOS transistors in subthreshold region is addressed. ... |
PhD Thesis
 Diseño de circuitos analógicos de baja tensión y bajo consumo empleando el seguidor de tensión FVF
(2003-01-01)
En los últimos años, el Grupo de Investigación de Tecnología Electrónica de la Universidad de Sevilla, ha desarrollado una ... |
PhD Thesis
Aportaciones al diseño de circuitos para comunicaciones de baja tensión de alimentación y bajo consumo
(2002-01-01)
Una de las líneas de investigación por el... En los últimos años los sistemas de comunicación han experimentado un avance ... |
Presentation
Design of a band-pass sigma-delta modulator with reduced number of opamps
(2000-01-01)
This paper is intended to compare the performance of a Band-Pass converter structure and its Low-Pass prototype 2nd order ... |
Presentation
CMOS fuzzifier using mixed-signal techniques with emphasis in power consumption
(1999-01-01)
A novel mixed-signal CMOS membership function generator (MFG) is presented. It is based on an enhanced version of a linear ... |
PhD Thesis
Contribuciones al diseño microelectrónico de controladores borrosos y neuronales automatización y realización
(1999-01-01)
El objetivo de esta tesis es explorar diferentes alternativas para la realización de microelectrónica de sistemas borrosos ... |
Presentation
Stochastic and PWM coding for an efficient implementation of Cellular Neural Networks
(1997-01-01)
This paper present the application of Pulse Stream Tech-niques (PSTs) to the hardware implementation of a Cellular Neural ... |
Presentation
An analog CMOS universal membership function circuit with fully independent, adjustable parameters
(1997-01-01)
A novel CMOS membership function circuit (MBC) is presented. It is based on a linear tunable transconductor proposed in ... |
Presentation
Automatic synthesis of analog fuzzy controllers
(1997-01-01)
In this paper, a silicon compiler for analog fuzzy controllers is presented. The layout is automatically generated ... |
Presentation
Digital test design with an "ad hoc" strategy for an industrial ASIC with large dimension
(1996-01-01)
The development of digital ASIC's with a large area states a lot of doubts when the ingenieer must design a test strategy. ... |