Volume 12 Number 2 May 2021


Study of Regular Output Power with Converters

Nikolay Madzharov

https://doi.org/10.6025/jet/2021/12/2/33-41

Abstract In this paper we have addressed the power supply with regular output power which is the converters with energy dosing. It provides energy dosing in the load with operation principle. The power is related to the output voltage received that is equivalent to the load parameters. We in this research have introduced a few converters with the required changes. We... Read More


An Enhanced Effective Angular Position Encoder Linearization System

Jelena Jovanovic, Dragan Denic

https://doi.org/10.6025/jet/2021/12/2/42-48

Abstract With the help of a specific microcontroller we have presented a cost-effective angular position encoder linearization system. This model is introduced and used to increase the encoder resolution and accuracy. During the testing we found that this encoder resolution is increased by three bits, and there is an increase of ten times the maximal absolute measurement error.... Read More


Algorithms for the Spectrum Analysis of Digital Signals

Lyubomir Laskov, Veska Georgieva, Stanio Kolev

https://doi.org/10.6025/jet/2021/12/2/49-56

Abstract In this current research we have introduced and discussed a method for analyzing the spectrum analysis of discrete signals with different shape forms. To do so we have used Discrete Fourier transformation and Fast Fourier transformation. We have also presented an algorithm and its implementation in MATLAB environment. We then have analysed the program code that influence the signals parameters... Read More