Capítols de llibre

Automated chlorine dosage in a simulated drinking water treatment plant: a real case study

Gámiz Caro, Javier Francisco; Grau Saldes, Antoni; Martínez García, Herminio; Bolea Monte, Yolanda (Multidisciplinary Digital Publishing Institute (MDPI), 2021-11)
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Open Access

In recent decades, increasing attention has been paid to the sustainability of products and processes, including activities aimed at environmental protection, site reclamation or treatment of contaminated ef¿uents, as well ...

The Cuckoo search algorithm applied to fuzzy logic control parameter optimization

García Gutiérrez, Gustavo; Arcos Aviles, Diego Gustavo; Carrera, Evaristo Vicente; Guinjoan Gispert, Francisco; Ibarra, Andrés; Ayala Taco, Paul (Springer, 2021-01-01)
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In the design of control systems, the tuning of controller parameters has a fundamental role in the performance of both transient and steady-state regimes. From this perspective, the tuning of controller parameters has ...

5GHz CMOS all-pass filter-based true time delay cell

Aghazadeh Dafsari, Seyed Rasoul; Martínez García, Herminio; Saberkari, Alireza (Multidisciplinary Digital Publishing Institute (MDPI), 2020)
Part of book or chapter of book
Open Access

Analog CMOS time-delay cells realized by passive components, e.g., lumped LC delay lines, are inefficient in terms of area for multi-GHz frequencies. All-pass filters considered as active circuits can, therefore, be the ...

Comparative aspects of control strategies for hybrid DC/DC regulators with variable-switching frequency

Martínez García, Herminio; García Vílchez, Encarnación (Cambridge Scholars Publishing, 2020)
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Linear-assisted DC/DC regulators (or linear-switching hybrid DC/DC regulators) consist of a linear voltage regulator (classic NPN/nMOS topologies or PNP/pMOS low-dropout structures) connected in parallel with a switching ...

Low drop-out voltage regulator as a candidate topology for photovoltaic solar facilities

Martínez García, Herminio; García Vílchez, Encarnación (Cambridge Scholars Publishing, 2020)
Part of book or chapter of book
Open Access

This chapter presents a design for a 4.5-V, 450-mA low drop-out (LDO) linear voltage regulator based on a two-stage cascode operational transconductance amplifier (OTA) as an error amplifier for photovoltaic solar DC-DC ...

Capacitorless DC/DC regulator as a candidate topology for photovoltaic solar

Martínez García, Herminio; García Vílchez, Encarnación (Cambridge Scholars Publishing, 2020)
Part of book or chapter of book
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Linear-assisted DC/DC regulators (or linear-switching hybrid DC/DC regulators) consist of a linear voltage regulator (classic NPN/nMOS topologies or PNP/pMOS low-dropout structures) connected in parallel with a switching ...

An energy efficient envelope tracking technique for demanding wireless standards

Prakash, Suraj; Martínez García, Herminio; Naderi, Mohammad H.; Lee, Hoi; Silva Martinez, José (2020)
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The chapter deals with energy efficient envelope tracking solution in a power amplifier system for demanding wireless standards.

The scaling laws of HyperSurfaces

Taghvaee, Hamidreza; Abadal Cavallé, Sergi; Alarcón Cot, Eduardo José; Cabellos Aparicio, Alberto; Saeed, Taqwa; Pitsillides, Andreas; Tsilipakos, Odysseas; Liaskos, Christos; Tasolamprou, Anna; Kafesaki, Maria; Pitilakis, Alexandros; Kantartzis, Nikolaos V.; Soteriou, Vassos; Lestas, Marios (CRC Press, 2020)
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State-of-the-art, flat structures called metasurfaces can filter and steer light and sound, render an object completely invisible to electromagnetic waves, and much more. They can deliver automation, remote operation, and ...

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