CONTENTS

BOOK 1 - Circuits and Systems, Education in Electronics ISSN 1313 - 1842
Shoikova E., I. Pandiev, Improved SPICE macromodels of instrumentation amplifier with PSRR effects	3
Gadjeva E., Durev V., Extraction of parameters of planar spiral inductors using genetic algorithms	11
Gadjeva E., V. Durev, Extraction of parameters of planar transformers using genetic algorithms	17
Yordanov Al., Sinusoidal and impulse generator, built on the bases of a direct digital synthezer	22
Mihova B., An approach to automatic circuit design using general-purpose circuit simulators	27
Koleva E., I. Kolev, Optocoupler circuits with electrical and optical feedbacks	33
Koleva E., I. Kolev, Development of avalanche phototransistor optocouplers and circuits with avalanche phototransistor optocouplers	37
Angelov G., K. Asparuhova,Optimization and simulation of the EKV model using MATLAB	42
Monov I., I. Gorchev, Computer based remote control for layout of scaled model trains	47
Soran I., I. Sztojanov, Some methods to improve the evaluation of amplitude spectrum given by FFT	53
Stefanova K., I. Petrov, B. Koen, Non-linear distortion of digital sinewave generator with step and step-linear approximation	59
Jordanova L., J. Nenkov, Optimization the architectures of the CATV networks to providing the video-on-demand service	63
Antonova O., M. Hristov, E. Gadjeva, Application of general-purpose circuit simulators to automated design and investigation of class E power amplifiers	69
Georgiev Z., T.Todorov, E. Manolov, I. Karagineva,Synthesis of sinewave oscillator based on the modified Van der Pol equation using melnikov theory	74
Manolov E., T. Todorov, Z. Georgiev, I. Karagineva, Design of FPAA prototype for practical studying of modified Van der Pol equation	79
Angelov Pl., A dynamic measure of harmonic distortions	85
Angelov Pl., A method to define the losses in audio-amplifier class D	91
Tsenov G., S. Terzieva, P.Yakimov, V. Mladenov, Modeling and implementation of third order sigma-delta modulator	96
Panagiev O., Ultralinear super trunk amplifiers	103
Panagiev O., Algorithm for calculating of the nonlinear products’ amplitudes from order n	109
Stefanova S., R.Gercheva,Simulation and program realization of recursive digital filters	115
Brusev T., P. Goranov, M. Hristov, Investigation of ZCS resonant-switch DC-DC converter for fully monolithic IC implementation	121
Shickalanov D., Calculation of weighed average estimation marks by means of spreadsheet	127
Skorpil Vl., Simulation of ADSL for needs of education	133
Shterev Pl., Automated generation of partially reconfigurable modules and their communication infrastructure	137
Radonov R., V. Videkov, Some peculiarities of the e-management environment, version 6	143
Tanchev I., R. Dimova, T. Georgieva, V. Draganov, LAN simulator program by local segment – LANSS	149
Shoikova E., M. Ivanova, A. Peshev, SharePoint server 2007 deployment for electronics education	155
BOOK 2 - Electronic Medical Equipment, Embedded Systems, Power Electronics ISSN 1313 – 1842
Andreev A., Grid computing in help of medical electronics	3
Dobrev D., T. Neycheva, N. Mudrov, Digital lock-in techniques for adaptive power-line interference extraction	9
Vasileva D., I. Iliev, E. Dimitrov, Muscle effort degree measurement	15
Dotsinsky I., G. Mihov, Tremor suppression in the electrocardiogram	19
Mihov G., R. Ivanov, Ch. Levkov, Subtraction method for removing a powerline interference from ECG : case of powerline frequency deviation and non-multiple samlping	27
Petrova G., G. Spasov, I. Rachev, H. Iliev, ADC module for mechanical myo-tonometry signals processing	33
Rachev I., G. Petrova, Design of a Matlab toolbox for mechanical myo-tonometry signals processing, analyzing and visualization	39
Iliev I., S. Tabakov, Homecare announcement system for people having injures	44
Jekova I., I. Christov, L. Todorova, Difference-based parameter set for local heartbeat classification: ranking of the parameters	49
Jekova I., V. Krasteva, Time and frequency domain analysis of five heartbeat types	55
Neycheva T., T. Stoyanov, High-resolution front-end for ECG signal processing	61
Krasteva V., I. Iliev, Automatic analysis and visualization of multilead long-term ECG recordings	67
Karakehayov Z., Z. Monov, Space division multiple access for wireless sensor networks	73
M. Shopov, H. Matev, G. Spasov, Evaluation of Web services implementation for ARM-based embedded system	79
Kakanakov N., E. Kostadinova, G. Spasov, Using SNMP for remote measurement and automation	85
Mihov S., D. Dimitrov, K. Stoyanov, D. Doychev, Embedded system for video and signal processing	91
Skorpil Vl., Error rate modelling	97
Gîrniţă M., Tracking filters in multisensor fusion	103
Gîrniţă M.,Two tracking filters analysis	110
Mihov V., E. Dinkov, Dynamic non-overlap commutation control in switching regulators	116
Mihov V., E. Dinkov, AC-AC power converters – overview and application	121
Popov E., L. Pindeva, Electrical design of three-phase bridge diode rectifiers with active-capacitive load by MATLAB	127
Dankov D., M. Simeonov, Resonant driver circuit for MOSFET’s and IGBT control in class-DE Inverter	133
Petkova M., Antchev M., Influence of input inductance over dynamic characteristics of single-phase shunt active power filter	139
Gurgulitsov V., M. Antchev, M. Petkova, Special operation features of the output transformer of series active power filters	145
Karamanski P., T. Hristov, Improving the parameters of an inductional surface hardening for one frequency and different specific powers per cm^2	151
Veselinov Vl., GPRS system for monitoring of break - down and transient processes at current source parallel inverters	155
BOOK 3 - Electronic Systems in Measurement and Control, Quantum and Nuclear Electronics - ISSN 1313 - 1842
Tsankov L., M. Mitev, A simple method for stabilization of arbitrary spectra	3
Mitev M., Е. Dimitrov, Dosimetric control system for a nuclear electronics training laboratory	9
Todorova P., M. Deneva, M. Nenchev, Two-colour coaxial active media Nd^3+:YAG-Ruby flash lamp pumped and Q-switched optical quantum generator	15
Topcu S., Y. Alaily, N. Kaimakanova, M. Deneva, M. Nenchev, Development of a two-wavelength CW red semiconductor lasers in original resonator architectures	21
Stanchev A., St. Ovcharov,The power quality and the measurement of harmonics	28
Molnár K., P. Kovár, Low-level process modelling in the OPNET Modeler simulation environment	35
Heidary A., Meijer G.C.M., Analysis and design of an integrated interface for leaky capacitive sensors with emphasis on humidity sensors	41
Chang Z., G.C.M. Meijer, The noise performance of evaluation boards for a universal transducer interface with USB connection	47
Kohbod K., G.C.M. Meijer, Analysis and design of CMOS smart temperature sensor (SMT) with duty-cycle modulated output	53
Lozanova S., Ch. Roumenin, CMOS Hall sensor for subsequent magnetic-field components measurement	59
Nikovski Pl., I. Maslinkov, Transient response and time characteristic of one capacitive interface circuit in case of fractality	65
Simeonov I., S. Yordanov, Acoustic control of the technological processes	71
Yordanov S., St.Ivanov, A. Rashidov, Process control in a system of serial connected bioreactors	77
Shterev G., Calibration of the measuring instruments for inclination angle	82
Nikolova B., G. Nikolov, SPICE modeling of Taguchi sensors	87
Nikolov G., B.Nikolova, M. Marinov, Hazardous gas monitoring using VI server	93
Zezulka F., O. Hyncica, Ethernet technology in automation	99
Katrandzhiev N., Algorithm for correction of primary spectrometric data	105
Stoyanov P., V. Markov, M. Mihov, G. Kiprov, Space based radiolocation systems - present state and perspectives for development	111
Nabavi M.R., St. Nihtianov, A survey of eddy current displacement sensors: imperfections and signal conditioning methods	116
Nojdelov R., St.Nihtianov, Capacitance meter	123
Dimitrijević M., V. Litovski, Implementation of compact switching power supply with high power factor	129
Draganov V., Zl. Stanchev, I.Tanchev, Improvement possibilities of the device for measuring of small capacities	133
Jivkov I., M. Alexandrova, D. Dimov, R. Kalinova, V. Nikolova, Vl. Denishev, Computer controlled setup for precise electrical measurements – a step towards the virtual instrumentation	139
Mitev M., E. Nazarova, E. Dimitrov, A. Zahariev, J. Georgiev, Automated system for investigation of resistance temperature dependence of high temperature superconductors	145
Yakimov P., St. Ovcharov, N.Tuliev, E. Balkanska, Investigation of electronic instruments and methods for Web-based energy management system development	151
Djamiykov T., M. Milushev, M. Marinov, Optic sensor for the joint of a walking robot	157
Donkov Y., T. Djamiykov, A. Rusev, Tachometer – cyclometer with programmable logic	163
Zhekov Z., G. Mardirossian, Petar Stefanov Getsov, Research of the transferring characteristics of a scanning spectrophotometer	168
BOOK 4 - Micro- and nanoelectronics, Technologies in Electronics ISSN 1313 - 1842
Coccetti F., D.Peyrou, M.Al Ahmad, P.Pons, D.Dragomirescu, H.Aubert, R.Plana, MEMS/NEMS technologies for ambient intelligence	3
Athanassov Al., The little transistor and the CCAS revolution	9
Cané C., P. Ivanov, F. Blanco, I. Gràcia, L.Fonseca, N. Sabaté, E.Figueras, J. Santander, Micro and nanotechnologies for food safety applications	19
Pergoot A., E. Saramov, The new exciting and challenging requirements to the automotive suppliers of Si and modules	29
Prokop R., Vl. Musil, New modular current devices for true current mode signal processing	36
Prokop R., L. Fujcik, ASIC for electro-chemical sensor conductivity measurement using bipolar pulse method	43
Melikyan V., A. Martirosyan, A. Matevosyan, S. Chobanyan, Congestion control algorithm for network on chip traffic	49
Melikyan V., D. Petrosyan, T. Petrosyan, The I/O output buffer automated design with consideration of simultaneously switching noises	55
Panayotov I., Behavior modeling of elements of the structure of analog array	59
Panayotov I., T. Brusev, M. Hristov, Ph. Philipov, Behavior modeling of DC/DC buck converter	65
Kavadarova N,, A, Andonova, Georgiev G., Investigation of the thermal interaction between an isothermal cylinder and its isothermal enclosure of an electric junction	71
Andonova A., E. Gadjeva, P. Draganska,G. Pavlov, I. Marinov, Modified compact model of MOSFET working under ESD stress	75
Ivanova M., D.l Donoval, J. Marek, A. Vrbicky, The influence of fabrication steps on selected properties of power DMOS transistor	79
Partinova S., T. Takov, Design and production of precise thick film circuits using photolithographic technology	85
Rusev R., B. Atanasov, T. Takov, M. Hristov, Nano semiconductor devices, including molecular semiconductors	91
Nikolić M., M. Savić, P. Petković, The self-bias PLL in standard CMOS	97
Jovanović B., P. Petković, M. Damnjanović, Serial port interface for microcontroller embedded into integrated power meter	103
Anđelković B., M. Dimitrijević, V. Litovski, Using grid computing in parallel electronic circuit simulation	109
Strijkova V.,I.Zhivkov, E. Spassova, J. Assa, I. Tsenov, Gencho V. Danev, Influence of preparation conditions on vacuum deposited polyimide layer properties and applicability	115
Boyadjiev St., M. Rassovska, WO3 thin films deposition on quartz crystal resonators for applications in gas sensors	121
Prasek J., M. Adamek, J. Hubalek, O. Jasek, L. Zajickova, Thick-film electrochemical sensor with deposited carbon nanotubes	125
Prasek J., M. Adamek, J. Krivka, Examination of the thick-film electrochemical sensor electrodes properties	131
Jivkov I., M. Alexandrova, R. Kalinova, C. Jossifov, E. Runenkina, G. Dobrikov, M. Rassovska, “Tailored” conductivity of segmented polydiphenylacetylene thin films for microelectronc application	137
Dobrikov G., M. Rassovska, S. Boiadjiev, K. Gesheva, P. Sharlandjiev, A. Koserkova, Microstructure and optical properties of ITO thin films investigated for heat mirrors in solar collectors	143
Adamek M., J. Prasek, Some aspects in thick-film capillary production	148
Adamek M., J. Prasek, 3-D electrodes design for thick-film sensors	153
K. Denishev, M. Petrova, Accelerometer design	159
K. Denishev, B. Trencheva, Micropumps for medical applications	165