Diego Pedro Morales

Isolated AC–DC Converters for High-Density USB-PD Adapters: A Comparative Review of Topologies and Future Trends

Noel Rodríguez, Diego Pedro Morales, Jorge Perez-Martinez, Cristina Martos-Contreras et autres

The transition of the USB Power Delivery (USB-PD) standard from fixed 5–20 V profiles to the dynamic extended power range (EPR) of up to 48 V and 240 W has redefined the constraints of isolated AC–DC conversion for high-density adapters and chargers. …

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On-Skin Wearable Health Monitoring Devices: Recent Trends and Perspectives

Francisco José Romero, Isabel Blasco-Pascual, Alfonso Salinas‐Castillo, Noel Rodríguez et autres

On-skin non-invasive Wearable Health-Monitoring Devices (WHMDs) have rapidly evolved from laboratory prototypes into commercially viable systems capable of continuously tracking physiological and biochemical signals. By integrating epidermal temperature sensors, electrophysiological electrodes, biochemical sensing platforms, low-power electronics, and wireless communication technologies, these systems …

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Memory circuit elements for hardware security: a review from memristors to memcapacitors and meminductors

Francisco J. Romero, Shayma Habboush, Seyedehsomayeh Hatefinasab, Cristina Fernandez et autres

The security of modern electronic systems is increasingly grounded in the physical properties of hardware, rather than on purely algorithmic assumptions. In this context, passive circuit elements with memory, commonly referred to as mem-elements, have emerged as promising candidates for implementing hardware-based …

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Comprehensive study of laser-synthesized conductive carbon-based materials from commercial polymer films

Yann Houeix, Denice Gerardo, Francisco J. Romero, Almudena Rivadeneyra et autres

Laser-scribing technologies provide a sustainable route for carbon-based electronics by reducing reliance on critical metals, eliminating solvents, and minimizing material waste. Laser-induced graphitization is a promising method for producing lightweight, flexible, and conductive graphitic patterns on carbon-rich substrates. However, not all such …

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Forward-Flyback Resonant Topology with Edge AI for MPPT Control in Solar Power Generation

Juan Cruz-Cozar, Javier Mendez, Miguel Martínez Molina, Jorge Perez-Martinez et autres

Distributed energy systems open up a vast field of research in power electronics. Local solar power generation requires DC-DC converters that adapt the energy generated by the panels to on-site distribution buses. In addition, the control of the power converter to obtain …

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Novel Resonant Bidirectional DC–DC Converter Based on Asymmetrical Half-Bridge Flyback

Juan Cruz-Cozar, Jorge Perez-Martinez, Alfredo Medina-Garcia, Cristina Martos-Contreras et autres

This article proposes the novel use of the asymmetrical half-bridge flyback (AHBF) topology with a bidirectional behavior. AHBF has seen an increase in industrial use in recent years due to its advantages over other topologies, such as its high power density, low …

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Smart colorimetric temperature sensor with thermoresponsive polymers and automatic image-based identification

Carmen López-León, Pablo Salcedo‐Abraira, César Moyano, Víctor Toral et autres

Temperature monitoring is essential across multiple sectors, including healthcare, logistics, and safety. Achieving accurate measurement under diverse conditions in a cost-effective, and sustainable manner remains a key challenge for both the scientific community and industry. In this context, we present the development …

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Towards Secure and Scalable VANET Infrastructures using ACME and TPM-Enabled Device Attestation

Miguel Mesa Simon, Antonio Escobar-Molero, Eva Castillo, Diego Pedro Morales et autres

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Enabling Live Video Provenance and Authenticity: A C2PA-Based System with TPM-Based Security for Livestreaming Platforms

Miguel Mesa-Simón, Antonio Escobar-Molero, Borja Saez, Diego Pedro Morales et autres

The growing spread of misinformation in recent years has become a concern for both governments and citizens, highlighting the need to verify the origin, authenticity and history of media files. This relevant information, commonly referred to as provenance, provides media consumers with …

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ENHANCING DIGITAL SYSTEM LEARNING WITH EXPANSION BOARDS FOR FPGA DEVELOPMENT KITS

Encarnación Castillo, Antonio García, Diego Pedro Morales, Luis Parrilla et autres

Charge-controlled memcapacitors for the output voltage ripple reduction in DC-DC buck converters

Francisco José Romero, Víctor Toral, Diego Pedro Morales, Noel Rodríguez

Memcapacitors, due to their variable capacitance and non-volatile memory effect, are expected to cause a disruption across different areas of research and engineering. In the context of power electronics, memcapacitors have not yet been considered despite their potential for ripple reduction, voltage …

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Achieving ZVS in Asymmetrical Half-Bridge Structures: A Thorough Analysis

Cristina Martos-Contreras, Alfredo Medina-Garcia, Jorge Perez-Martinez, Noel Rodríguez et autres

As the demand for more efficient and compact power converters grows, the trend points to a progressive raise of their switching frequency. However, even with wide-bandgap semiconductors, switching losses limit the maximum frequency at which they can operate, requiring zero-voltage switching (ZVS) …

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