Now showing items 1-10 of 10

  • Analysis and Synthesis of the Digital Structures by the Matrix Method 

    Psenicka, B.; Hospodka, J. (Společnost pro radioelektronické inženýrství, 2011-06)
    This paper presents a general matrix algorithm for analysis of digital filters. The method proposed in this paper allows not only the analysis of the digital filters, but also the construction of new structures of the ...
  • Design of Dual Bandpass and Bandreject LC Ladder Filters 

    Bicak, J.; Hospodka, J. (Společnost pro radioelektronické inženýrství, 2006-09)
    This paper deals with the design of two-passband bandpass and two-stopband bandreject LC ladder filters. The design method is based on the special dual frequency transformation that transforms normalized lowpass to either ...
  • Developing Model-Based Design Evaluation for Pipelined A/D Converters 

    Struhovsky, P.; Subrt, O.; Hospodka, J.; Martinek, P. (Společnost pro radioelektronické inženýrství, 2012-09)
    This paper deals with a prospective approach of modeling, design evaluation and error determination applied to pipelined A/D converter architecture. In contrast with conventional ADC modeling algorithms targeted to extract ...
  • Guidelines on the Switch Transistors Sizing Using the Symbolic Description for the Cross-Coupled Charge Pump 

    Marek, J.; Hospodka, J.; Subrt, O. (Společnost pro radioelektronické inženýrství, 2017-09)
    This paper presents a symbolic description of the design process of the switch transistors for the cross- coupled charge pump applications. Discrete-time analog circuits are usually designed by the numerical algorithms in ...
  • High Voltage Coil Current Sensor for DC-DC Converters Employing DDCC 

    Drinovsky, M.; Hospodka, J. (Společnost pro radioelektronické inženýrství, 2015-12)
    Current sensor is an integral part of every switching converter. It is used for over-current protection, regulation and in case of multiphase converters for balancing. A new high voltage current sensor for coil-based current ...
  • Implementation of a Two-Channel Maximally Decimated Filter Bank using Switched Capacitor Circuits 

    Nahlik, J.; Hospodka, J.; Sovka, Pavel; Psenicka, B. (Společnost pro radioelektronické inženýrství, 2013-04)
    The aim of this paper is to describe the implementation of a two-channel filter bank (FB) using the switched capacitor (SC) technique considering real properties of operational amplifiers (OpAmps). The design procedure is ...
  • Optimization of Dynamic Range of Cascade Filter Realization 

    Hospodka, J. (Společnost pro radioelektronické inženýrství, 2006-09)
    This paper deals with a dynamic range optimization procedure for active filters based on the cascade realization. Dynamic characteristics of the cascade filter depend on many factors, mainly on pole-zero pairing, section ...
  • Switched-Capacitor Filter Optimization with Respect to Switch On-State Resistance and Features of Real Operational Amplifiers 

    Dolivka, L.; Hospodka, J. (Společnost pro radioelektronické inženýrství, 2007-06)
    The optimization of a switched-capacitor filter, which implements a biquadratic section, is described in this paper. The aim of the optimization is to obtain a required magnitude frequency response of the filter. The ...
  • Triangle/Square Waveform Generator Using Area Efficient Hysteresis Comparator 

    Drinovsky, M.; Hospodka, J. (Společnost pro radioelektronické inženýrství, 2016-06)
    A function generator generating both square and triangle waveforms is proposed. The generator employs only one low area comparator with accurate hysteresis set by a bias current and a resistor. Oscillation frequency and ...
  • Ways to Optimize Analogue Switched Circuits 

    Dolivka, L.; Hospodka, J. (Společnost pro radioelektronické inženýrství, 2008-12)
    This paper describes how analogue switched circuits (switched-capacitor and switched-current circuits) can be optimized by means of a personal computer. The optimization of this kind of circuits is not so common and their ...