Open AccessELECTRICAL DRIVE AND CONTROL OF AN ELECTRIC MOTOR STEP BY STEP BY STEP BIPOLAR
Author(s) -
Violeta-Vali Ciucur
Publication year - 2021
Publication title -
journal of marine technology and environment
Language(s) - English
Resource type - Journals
eISSN - 2501-8795
pISSN - 1844-6116
DOI - 10.53464/jmte.02.2021.02
Subject(s) - pulse width modulation , signal (programming language) , amplitude , pulse duration , generator (circuit theory) , duration (music) , control theory (sociology) , pulse amplitude modulation , pulse frequency modulation , power factor , pulse (music) , constant (computer programming) , signal generator , electronic circuit , physics , electrical engineering , acoustics , engineering , power (physics) , voltage , computer science , control (management) , optics , laser , quantum mechanics , artificial intelligence , programming language
"PWM, (Pulse Width Modulation) is the most effective way to control analog circuits using numerical outputs by changing the duration and frequency of the signal.The duration of each state t1 and t2, so the filling factor, where T = t1 + t2 = constant. If only one of the times (t1 or t2) varies, then the Tt period of a cycle varies, so the f = 1 / T frequency varies.The PWM signal is actually a modulated rectangular signal over the duration by modifying the duration of each period t1, t2 of the cycle as well as the change in frequency.The maximum benefit of a stepper motor can only be obtained if it is ordered correctly, this requiring a direct current source, an electronic switch and a controlled pulse generator (numerical information).The frequency of the CLOCK cycle is measured in Hz and the filling factor is measured in percentage (%).The amplitude of the output signal is constant even if the amplitude of signals producing the fill factor varies."