Now showing items 1-15 of 15

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

      Aghazadeh Dafsari, Seyed Rasoul; Martínez García, Herminio; Saberkari, Alireza (2018-12-22)
      Article
      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 ...
    • A Highly time sensitive XOR gate for probe attempt detectors 

      Manich Bou, Salvador; Strasser, Martin (2013-09-05)
      Article
      Restricted access - publisher's policy
      Probe attempt detectors are sensors designed to protect buses of secure chips against the physical contact of probes. The operation principle of these detectors relies on the comparison of the delay propagation times ...
    • A novel active gate driver for improving SiC MOSFET switching trajectory 

      Paredes Camacho, Alejandro; Sala Caselles, Vicenç; Ghorbani, Hamidreza; Romeral Martínez, José Luis (Institute of Electrical and Electronics Engineers (IEEE), 2017-11-01)
      Article
      Open Access
      The trend in power electronic applications is to reach higher power density and higher efficiency. Currently, the wide band-gap devices such as silicon carbide MOSFET (SiC MOSFET) are of great interest because they can ...
    • Analysis and spike detection of neural data from a CMOS MEA system 

      Ibáñez Martínez, Laura (Universitat Politècnica de Catalunya, 2019-10-31)
      Bachelor thesis
      Open Access
      Covenantee:   Technische Universität Berlin
      This thesis is intended to deal with the problem of analysis and spike detection in neural data acquired from a CMOS Microelectrode Array (MEA) system. In order for this to be carried out a Graphical User Interface (GUI) ...
    • Characterization of 28 nm FDSOI MOS and application to the design of a low-power 2.4 GHz LNA 

      Río Jiménez, Jaume del (Universitat Politècnica de Catalunya, 2017-05)
      Master thesis
      Open Access
      IoT is expected to connect billions of devices all over world in the next years, and in a near future, it is expected to use LR-WPAN in a wide variety of applications. Not all the devices will require of high performance ...
    • Charge trapping control in MOS capacitors 

      Domínguez Pumar, Manuel; Bheesayagari, Chenna Reddy; Gorreta Mariné, Sergio; López Rodríguez, Gema; Martín García, Isidro; Blokhina, Elena; Pons Nin, Joan (Institute of Electrical and Electronics Engineers (IEEE), 2016-12-26)
      Article
      Open Access
      This paper presents an active control of C-V characteristic for MOS capacitors based on Sliding Mode control and sigma-delta-modulation. The capacitance of the device at a certain voltage is measured periodically and ...
    • Closed-loop compensation of charge trapping induced by ionizing radiation in MOS capacitors 

      Domínguez Pumar, Manuel; Bheesayagari, Chenna Reddy; Gorreta Mariné, Sergio; Lopez Chavez, G.; Pons Nin, Joan (Institute of Electrical and Electronics Engineers (IEEE), 2017-08-31)
      Article
      Open Access
      The objective of this work is to explore the capability of a charge trapping control loop to continuously compensate charge induced by ionizing radiation in the dielectric of MOS capacitors. To this effect, two devices ...
    • Design of AC-DC power converters with LCL + tuned trap line filter using Si IGBT and SiC MOSFET modules 

      Piasecki, S.; Mir Cantarellas, Antonio; Rabkowski, J.; Rodríguez Cortés, Pedro (2013)
      Conference report
      Restricted access - publisher's policy
      This paper presents a method for improving the design procedure of AC-DC power converters for power generation applications. The proposed methodology is based on selection of the most convenient configuration, in terms ...
    • Efficiency comparison between SiC- and Si-based active neutral-point clamped converters 

      Nicolás Apruzzese, Joan; Maset, Enrique; Busquets Monge, Sergio; Esteve, Vicente; Bordonau Farrerons, José; Calle Prado, Alejandro; Jordán, José (2015)
      Conference report
      Restricted access - publisher's policy
      This paper presents an efficiency comparison between silicon-carbide technology and silicon technology. In order to achieve this, the efficiency of an active neutral-point clamped converter built up with silicon carbide ...
    • MOSFET degradation dependence on input signal power in a RF power amplifier 

      Crespo Yepes, Albert; Barajas Ojeda, Enrique; Martin Martínez, Javier; Mateo Peña, Diego; Aragonès Cervera, Xavier; Rodríguez Martínez, Rosana; Nafría Maqueda, Montserrat (2017-06-25)
      Article
      Open Access
      Aging produced by RF stress is experimentally analyzed on a RF CMOS power amplifier (PA), as a function of the stress power level. The selected circuit topology allows observing individual NMOS and PMOS transistors ...
    • Output–Capacitorless CMOS LDO Regulator Based on High Slew–rate current-mode transconductance amplifier 

      Saberkari, Alireza; Fathipour, Rasoul; Martínez García, Herminio; Poveda López, Alberto; Alarcón Cot, Eduardo José (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Conference lecture
      Restricted access - publisher's policy
      A low quiescent current output-capacitorless CMOS LDO regulator based on a high slew-rate current-mode transconductance amplifier (CTA) as an error amplifier is presented. Load transient characteristic of the proposed LDO ...
    • Ring oscillator switching noise under NBTI wearout 

      Fernández García, Raúl; Gil Galí, Ignacio; Ruiz, José María; Morata Cariñena, Marta (2011)
      Conference report
      Open Access
      In this paper the switching noise of a CMOS ring oscillator has been analysed when their pFETs are subjected to negative bias temperature instability (NBTI). The impact of pFET under NBTI has been experimentally quantified ...
    • Smart control of chemical MOX gas sensors 

      Monge Víllora, Oscar (Universitat Politècnica de Catalunya, 2018-09)
      Master thesis
      Restricted access - author's decision
      The objective of this work is to present different control loops designed for improving the time response of metal-oxide gas sensors. This type of sensors generally present slow responses and in some cases, drift. Focusing ...
    • Study of the impact of hot carrier injection to immunity of MOSFET to electromagnetic interferences 

      Li, Binhong; Berbel Artal, Néstor; Boyer, A.; BenDhia, S.; Fernández García, Raúl (2011)
      Conference report
      Open Access
      This paper presents an original study about the effect of hot carrier injection stress on the DC offsets induced by electromagnetic interferences (EMI) on a nanometric NMOS transistor, which is one of the major sources of ...
    • Tunnel FET device characteristics for RF energy harvesting passive rectifiers 

      Nunes Cavalheiro, David Manuel; Moll Echeto, Francisco de Borja (2015-06)
      Conference lecture
      Open Access
      The lack of high power conversion efficiency in RF passive rectifier circuits at sub-µW power levels with current MOSFET technologies is directly related with the difficulty of the transistors in conducting the required ...