{"title":"Brief Contribution to Geometrical Theory of Zeroes and Poles of Bifractional Filters","authors":"J. Petrzela","doi":"10.23919/AE49394.2020.9232849","DOIUrl":"https://doi.org/10.23919/AE49394.2020.9232849","url":null,"abstract":"This paper briefly contributes to synthesis of non-integer order frequency filters. Well known method of construction of desired frequency responses based on locations of zeroes and poles is generalized to fractional-order (FO) domain. Several prototypes of FO transfer functions are geometrically interpreted using a complex plane. Each transfer function has a single real degree of freedom and corresponding unique frequency responses. Proposed approach is verified by example of very simple two-band FO audio equalizer.","PeriodicalId":294648,"journal":{"name":"2020 International Conference on Applied Electronics (AE)","volume":"62 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120998224","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Experimental Verification of a Ultra-Low Voltage Charge Pump","authors":"R. Ravasz, M. Kovác, V. Stopjaková","doi":"10.23919/AE49394.2020.9232719","DOIUrl":"https://doi.org/10.23919/AE49394.2020.9232719","url":null,"abstract":"This paper deals with the analysis of a cross coupled charge pump designed in a 130 nm CMOS technology with ultra low power supply voltage. We propose a printed circuit board, designed to experimentally verify this integrated circuit. The test board was designed to verify all function blocks of the charge pump independently, as well as the charge pump circuit as a whole. The charge pump was designed to operate at a supply voltage of 200 mV and the switching frequency of 100 kHz. The achieved experimental results prove the correct functionality of the designed charge pump integrated circuit.","PeriodicalId":294648,"journal":{"name":"2020 International Conference on Applied Electronics (AE)","volume":"132 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124267630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analysis of Multilevel Electronic Balancer for AC Traction Substation with PS-PWM","authors":"V. Blahnik, Milos Straka, M. Pittermann","doi":"10.23919/AE49394.2020.9232778","DOIUrl":"https://doi.org/10.23919/AE49394.2020.9232778","url":null,"abstract":"The main goal of this paper is the analysis of an behavior for the electronic balancer of the AC traction substation. This balancer consists of three delta connected multilevel cascade H-bridge converters. The employed phase-shifted pulse width modulation causes the significant decrease of the current ripple due to multilevel nature of the voltage at the converter AC terminals. This paper describes the basic level of modulation technique for single H-bridge cell and analyzes low harmonic interferences of the converter. These results are extended to twelve cells H-bridge multilevel converter with 250 Hz switching frequency. The results of the analysis are based on a created model of the multilevel converter with the nominal power of 12.5 MVA (for traction substation use).","PeriodicalId":294648,"journal":{"name":"2020 International Conference on Applied Electronics (AE)","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128542896","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Comparison of Measured Data Given by Automatized Measurement Methodology with the Analytical Expression of DLS MOSFET","authors":"D. Barri, J. Jakovenko","doi":"10.23919/AE49394.2020.9232796","DOIUrl":"https://doi.org/10.23919/AE49394.2020.9232796","url":null,"abstract":"This paper introduces the latest modern automatized advanced measurement flow of the diamond layout shape MOS transistors (DLS MOSFETs) as well as the rectangular layout shape (RLS) MOSFETs directly on a wafer. There are presented photos of the DLS MOSFET, from the highest level of the wafer down to the lowest level of the wafer, where each photo is individually commented. The next part of this article presents each item of the proposed measurement flow, such as an air compressor, temperature forcing system, probe cards, and precision semiconductor parameter analyzer. Also, there is shown, a photo of the probe card used for the measurement, as well as planning of its needles. Besides others, there is describe four-points measurement strategy, and the last part of this paper recommends the minimum number of measurements in order to obtain relevant data. Finally, the measured data is compared with a theoretic analytical expression based on the Schwarz-Christoffel transformation.","PeriodicalId":294648,"journal":{"name":"2020 International Conference on Applied Electronics (AE)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126841323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marvin Friedemann, S. Voigt, M. Werner, R. Hecker, J. Mehner
{"title":"Drift analysis and stabilization of a Fiber Bragg Grating interrogation device","authors":"Marvin Friedemann, S. Voigt, M. Werner, R. Hecker, J. Mehner","doi":"10.23919/AE49394.2020.9232883","DOIUrl":"https://doi.org/10.23919/AE49394.2020.9232883","url":null,"abstract":"This paper analyzes wavelength drifts of a Fiber Bragg Grating interrogation device due to variations in different environmental conditions. First, the thermal induced wavelength shifts of the Fiber Bragg Gratings were abstracted. Then, it was possible to investigate the correlations between wavelength drifts and A) temperature of the interrogation device, B) air pressure, and C) static inclination of the interrogation device. Out of these three factors, unsteady temperature of the interrogation device proved to be the main reason for wavelength drift in our setup. Variations in air pressure were the second most important factor, whereas the static inclination of the interrogation device showed the least but still considerable effect on wavelength drifts. A temperature stabilization of the device housing temperature is introduced and a software-based offsetting of the air pressure is discussed.","PeriodicalId":294648,"journal":{"name":"2020 International Conference on Applied Electronics (AE)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128480294","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Venkata Subba Rao Yanna, V. K. Bhajana, P. Drábek, Madhuchandra Popuri
{"title":"A Novel Soft-Switching Bidirectional DC-DC Converter for Energy Storage Applications","authors":"Venkata Subba Rao Yanna, V. K. Bhajana, P. Drábek, Madhuchandra Popuri","doi":"10.23919/AE49394.2020.9232800","DOIUrl":"https://doi.org/10.23919/AE49394.2020.9232800","url":null,"abstract":"In this paper, a soft-switching bidirectional DC-DC converter is proposed. In order to achieve soft-switching conditions ZVS turn on / ZCS turn off, the auxiliary circuit including a switch, a capacitor, a diode and a small inductor are adapted to the bidirectional converter. The soft-switching characteristics in this converter are achieved regardless of power transfer. Due to the existence of auxiliary circuit, the switching losses are reduced and thus improve the overall efficiency. The switching devices achieved ZVS turn on and ZCS turn off operations, while converter operated in boost and buck modes, respectively. The operating principles are described and verify the soft-switching characteristics by its simulation analysis. The proposed converter system 100V/340V/650W is validated by simulation analysis.","PeriodicalId":294648,"journal":{"name":"2020 International Conference on Applied Electronics (AE)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129380494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Implementation of Control Unit for Electric Drive Kart","authors":"Ondrej Suchý, T. Kosan, L. Streit","doi":"10.23919/AE49394.2020.9232728","DOIUrl":"https://doi.org/10.23919/AE49394.2020.9232728","url":null,"abstract":"This paper presents the design of the control unit to be installed in the electric kart and it will control the permanent magnet synchronous motor as well as other peripherals. The control unit contains microcontroller TMS320F28335, analog circuits for voltage and current sensors, drivers for 3-phase inverter, CAN and RS-485 communications and circuit for power outputs.","PeriodicalId":294648,"journal":{"name":"2020 International Conference on Applied Electronics (AE)","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117090337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Wireless Proximity Sensor in LoRaWAN Network","authors":"Michal Mihálik, M. Hruboš, E. Bubeníková","doi":"10.23919/AE49394.2020.9232725","DOIUrl":"https://doi.org/10.23919/AE49394.2020.9232725","url":null,"abstract":"The aim of this work is to create a functional prototype of a wireless proximity sensor, which will send processed information via a wireless sensor network. The combination of wireless sensor network and low power devices create a network known as the Low-Power Wide-Area Network (LPWAN). In this article, we will focus on the hardware configuration of the terminal and its testing.","PeriodicalId":294648,"journal":{"name":"2020 International Conference on Applied Electronics (AE)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128211750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Computational Performance of the Parameters Estimation in Extreme Seeking Entropy Algorithm","authors":"J. Vrba, J. Mares","doi":"10.23919/AE49394.2020.9232875","DOIUrl":"https://doi.org/10.23919/AE49394.2020.9232875","url":null,"abstract":"This paper is dedicated to the evaluation of the computational time performance of the algorithms that estimate the parameters of the generalized Pareto distribution, namely Method of Moments, Maximum likelihood estimator and Quasi-maximum likelihood algorithms. The generalized Pareto distribution is utilized by the Extreme Seeking Entropy algorithm to detect novelty in data. The algorithm is evaluating the weight increments of the simple adaptive filter that are obtained via incrementally learning algorithm. The computational time performance is examined in the experiment with the detection of step-change parameters of the signal generator. Its output contains also additive Gaussian noise.","PeriodicalId":294648,"journal":{"name":"2020 International Conference on Applied Electronics (AE)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133081122","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}