Now showing items 1-7 of 7

  • A comprehensive high-level model for CMOS-MEMS resonators 

    Banerji, Saoni; Fernández, Daniel; Madrenas Boadas, Jordi (2018-01-24)
    Article
    Open Access
    This paper presents a behavioral modeling technique for CMOS microelectromechanical systems (MEMS) microresonators that enables simulation of an MEMS resonator model in Analog Hardware Description Language format within a ...
  • A mixed-signal control system for Lorentz-force resonant MEMS magnetometers 

    Sánchez Chiva, José María; Valle Fraga, Juan José; Fernández, Daniel; Madrenas Boadas, Jordi (2019-09-01)
    Article
    Open Access
    This paper presents a mixed-signal closed-loop control system for Lorentz force resonant MEMS magnetometers. The control system contributes to 1) the automatic phase control of the loop, that allows start-up and keeps ...
  • An asynchronous finite-state-machine-based buck-boost converter for on-chip adaptive power supply 

    Fernández, Daniel; Madrenas Boadas, Jordi; Alarcón Cot, Eduardo José (2013-01)
    Article
    Restricted access - publisher's policy
    In this paper we present an asynchronous finite-state machine digital controller co-integrated with an on-chip non-inverting buck-boost power converter with dynamic signal-tracking capabilities. The mostly-digital controller ...
  • A translinear, log-domain FPAA on standard CMOS technology 

    Fernández, Daniel; Martínez Alvarado, Luis Arturo; Madrenas Boadas, Jordi (2012-02)
    Article
    Restricted access - publisher's policy
    A field-programmable analog array (FPAA) using a standard-CMOS wide-dynamic-range translinear element (TE) is introduced. The FPAA configurable analog blocks (CABs) are based on a reconfigurable translinear cell (RTC), ...
  • Experiments on MEMS Integration in 0.25 turn CMOS Process 

    Michalik, Piotr Jozef; Fernández, Daniel; Wietstruck, Mehmet; Kaynak, Mehmet; Madrenas Boadas, Jordi (Multidisciplinary Digital Publishing Institute (MDPI), 2018-07-01)
    Article
    Open Access
    In this paper, we share our practical experience gained during the development of CMOS-MEMS (Complementary Metal-Oxide Semiconductor Micro Electro Mechanical Systems) devices in IHP SG25 technology. The experimental ...
  • Fusion of WLAN and GNSS observables for positioning in urban areas: the position ambiguity 

    Fernández, Daniel; Barceló Arroyo, Francisco; Martín Escalona, Israel; Ciurana Adell, Marc; Jofre, Martí; Gutiérrez, Esteban (2011)
    Conference report
    Restricted access - publisher's policy
    This paper proposes a positioning method that combines GPS pseudoranges and WLAN ranges when less than four GPS satellites are within sight. To enhance the positioning availability, a tight hybridization approach with both ...
  • On the Resolution of position ambiguity when integrating GNSS and WLAN observables 

    Fernández, Daniel; Ciurana Adell, Marc; Jofre, Martí; Gutiérrez, Esteban; Chester, Ed; Barceló Arroyo, Francisco; Martín Escalona, Israel (2010)
    Conference report
    Restricted access - publisher's policy
    This contribution proposes a positioning system that fuses GPS pseudoranges and WLAN ranges when fewer than four GPS satellites are available. In order to enhance as much as possible the positioning availability, a tight ...