Exploració per tema "Capacitors"

Ara es mostren els items 1-20 de 46

    • A battery-less, self-sustaining RF energy harvesting circuit with TFETs for µW power applications 

      Nunes Cavalheiro, David Manuel; Moll Echeto, Francisco de Borja; Valtchev, Stanimir (Institute of Electrical and Electronics Engineers (IEEE), 2016)
      Text en actes de congrés
      Accés obert
      This paper proposes a Tunnel FET (TFET) power management circuit for RF energy harvesting applications. In contrast with conventional MOSFET technologies, the improved electrical characteristics of TFETs promise a better ...

    • A Closed-loop capacitance to pulse-width converter for single element capacitive sensors 

      Areekath, Lakshmi; George, Boby; Reverter Cubarsí, Ferran (2019)
      Text en actes de congrés
      Accés obert
      A novel closed-loop capacitance-to-pulse width converter (CPC) suitable for single element capacitive sensors that use sinusoidal excitation is presented in this paper. Its operation is realized using a new configuration ...

    • A compact switched-capacitor multi-bit quantizer for low-power high-resolution delta-sigma ADCs 

      Cisneros Fernández, Jose Agustín; Serra Graells, Francisco; Teres Teres, Lluis; Dei, Michele (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      This paper proposes a compact switched-capacitor (SC) multi-bit flash quantizer for low-power high-resolution delta-sigma modulators (¿SMs). First, a general power model for single-loop ¿SMs is presented to show the ...

    • A low-power-consumption out-of-Plane electrothermal actuator 

      Girbau Sala, David; Llamas Morote, Marco Antonio; Casals Terré, Jasmina; Simó Selvas, Francisco Javier; Pradell i Cara, Lluís; Lázaro Guillén, Antoni (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2007-06-30)
      Article
      Accés obert
      This paper proposes a new vertical electrothermal actuator. It can be considered as a hybrid between the traditional in-plane buckle-beam actuator and the vertical hot-cold actuator. It is here referred to as vertical ...

    • A Supply-voltage driving scheme for grounded capacitive sensor front-ends 

      Haberman, Marcelo A.; Spinelli, Enrique Mario; Reverter Cubarsí, Ferran (Institute of Electrical and Electronics Engineers (IEEE), 2022-01-01)
      Article
      Accés obert
      n this article, a novel supply-voltage driving1 (SVDR) scheme for capacitive sensor front-ends is proposed to2 eliminate the parasitic capacitance effects. The suggested circuit3 is intended for remote sensors (and, hence, ...

    • An Extended study on an interference-insensitive switched capacitor CDC 

      Areekath, Lakshmi; Reverter Cubarsí, Ferran; George, Boby (2019-09-15)
      Article
      Accés restringit per política de l'editorial
      A new Switched Capacitor (SC) Capacitance-to-Digital Converter (CDC) is presented in this paper. Its output exhibits a high-level of insensitivity to interference, by virtue of the conversion mechanism itself. The proposed ...

    • Application properties analysis as a dielectric capacitor of end-of-life tire-reinforced HDPE 

      Marín Genescà, Marc; Garcia Amoros, Jordi; Mujal-Rosas, Ramon Maria; Massagués Vidal, Lluís; Colom Fajula, Xavier (Multidisciplinary Digital Publishing Institute (MDPI), 2020-11-12)
      Article
      Accés obert
      The purpose of the present research is to obtain waste of polymeric composite as an insulator capacitive application. Rubber materials, once they end their useful life, may be difficult to reuse or recycle. At present, ...

    • Capacitive tunnels in single-walled carbon nanotube networks on flexible substrate 

      Iqbal, M. Zahir; Iqbal, Waheed; Eom, J.; Ahmad, M.; Ferrer Anglada, Núria (American Institute of Physics (AIP), 2012-03-15)
      Article
      Accés obert
      We report the analysis of single-walled carbon nanotube networks, which are expected to be suitable as miniaturized flexible radio frequency RC filters and also have important implications for high frequency devices. The ...

    • Characterization of dynamics and power handling of RF MEMS using vector measurement techniques 

      Girbau Sala, David; Lázaro Guillén, Antoni; Pradell i Cara, Lluís (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2004-11-30)
      Article
      Accés obert
      This paper proposes a new method to measure dynamics and power handling of RF microelectromechanical systems (MEMS) devices based on a mobile membrane. The method uses in-phase/quadrature demodulation of an RF signal ...

    • Closed-Loop discontinuous modulation technique for capacitor voltage ripples and switching losses reduction in modular multilevel converters 

      Picas Prat, Ricard; Ceballos Recio, Salvador; Pou Félix, Josep; Zaragoza Bertomeu, Jordi; Konstantinou, Georgios; Agelidis, Vassilios (2015-04-15)
      Article
      Accés obert

    • Comparison of on-wafer calibrations using the concept of reference impedance 

      Purroy Martín, Francesc; Pradell i Cara, Lluís (. MICROWAVE EXHIBITORS AND PUBLISHERS, 1993)
      Text en actes de congrés
      Accés obert
      A novel method that allows to compare different calibration techniques has been developed. It is based on determining the reference impedance of a given Network Analyzer calibration from the reflection coefficient measurement ...

    • Condensadores de silicio macroporoso 

      Reina Marsiñach, Jordi (Universitat Politècnica de Catalunya, 2013-09-10)
      Projecte/Treball Final de Carrera
      Accés obert
      [ANGLÈS] The goal of this work is to develop the manufacturing process of macroporous silicon capacitors, and to produce and characterize them. For this, as one of the electrodes macroporous silicon was used. As the second ...

    • Confecció d'un aparell de recàrrega de condensadors inactius en el temps 

      Batlle Basseda, Carles (Universitat Politècnica de Catalunya, 2020-02-03)
      Treball Final de Grau
      Accés obert
      En el present projecte, es realitza el disseny i muntatge d’un prototip capaç de reacondicionar, de forma totalment automatitzada, els condensadors electrolítics dels variadors de freqüència que hagin estat en desús més ...

    • Control to reduce leading current in a Shunt Hybrid power filter 

      Lamich Arocas, Manuel; Balcells Sendra, Josep; González Díez, David; Gago Barrio, Javier; Jaen Fernandez, Carles; Castillo Martínez, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2009)
      Text en actes de congrés
      Accés obert
      The main drawback of Shunt Hybrid Filters is the need of leading current injection. This paper describes a strategy to reduce the leading current in a three phase four wires LC coupled parallel hybrid filter for harmonics ...

    • Design and control of a modular multilevel DC/DC converter for regenerative applications 

      Montesinos Miracle, Daniel; Massot Campos, Miquel; Bergas Jané, Joan Gabriel; Galceran Arellano, Samuel; Rufer, Alfred (2013-08)
      Article
      Accés restringit per política de l'editorial
      This paper compares different cascaded and multilevel topologies to interface supercapacitors to a dc bus in regenerative braking applications. It is shown that the modular multilevel dc/dc converter (MMC) can benefit ...

    • Design and implementation of a sliding-mode controller for digital low-dropout/linear regulators 

      Baheri, Javad; Saberkari, Alireza; Khorgami, Omid; Alarcón Cot, Eduardo José (2018-03-20)
      Article
      Accés obert
      This paper presents an approach to utilize of sliding-mode (SM) controller in digital low-dropout/linear regulators. Various design aspects, including the extraction of the regulator state-space model and sliding coefficients ...

    • Design and validation of a platform for electromagnetic fault injection 

      Balasch, Josep; Arumi Delgado, Daniel; Manich Bou, Salvador (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Text en actes de congrés
      Accés obert
      Security is acknowledged as one of the main challenges in the design and deployment of embedded circuits. Devices need to operate on-the-field safely and correctly, even when at physical reach of potential adversaries. One ...

    • Diffusive representation and sliding mode control of charge trapping in Al2O3MOS capacitors 

      Bheesayagari, Chenna Reddy; Pons Nin, Joan; Atienza García, María Teresa; Domínguez Pumar, Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2019-01-01)
      Article
      Accés obert
      The objective of this paper is to introduce a modeling strategy to characterize the dynamics of the charge trapped in the dielectric of MOS capacitors, using Diffusive Representation. Experimental corroboration is presented ...

    • Digital control of multiphase series capacitor buck converter prototype for the powering of HL-LHC inner triplet magnets 

      Ibarra Basabe, Edorta; Arias Pujol, Antoni; Martínez de Alegría, Iñigo; Otero, Alberto; de Mallac, Louis (Institute of Electrical and Electronics Engineers (IEEE), 2022-10-01)
      Article
      Accés obert
      A major upgrade will be conducted in the Large Hardon Collider (LHC) at CERN. This high-luminosity (HL) version of the LHC will increase the nominal luminosity by a factor of five. One of the key technologies of the HL-LHC ...

    • Dynamic behaviour of a back-to-back five-level flying capacitor converter with reduced DC bus capacitance 

      Ghias, Amer M.Y.M.; Ciobotaru, M.; Agelidis, Vassilios; Pou Félix, Josep (2012)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Due to extensive research, advanced voltage source converter (VSC) such as multilevel and multi-module have been proposed for high power applications. These advanced VSCs must provide secure as well as, intelligent power ...