DC Converters - Power Electronics - Quiz 11 | ECE 320, Quizzes of Electrical and Electronics Engineering

Download DC Converters - Power Electronics - Quiz 11 | ECE 320 and more Quizzes Electrical and Electronics Engineering in PDF only on Docsity! ECE 320 / ECE 329 NAME ________________________________ Quiz #11A 10 November 2004 Power Electronics; DC / DC Converters Shown in the Figure below is a dc to dc converter known as a Buck Converter. Unfortunately, its duty cycle is not long enough for it to keep conducting the entire cycle. Therefore, it works as follows: Initial condition, t=0: Switch off, current in the inductor is zero For 0<t<DT: Switch turned on, current flows in switch and inductor; inductor current increases For DT<t<D1T: Switch turns off, current flows in diode and inductor; inductor current decreases, reaching zero at D1T. D1T≤t<T: Switch is off; current in switch, diode, and inductor is zero. In terms of input voltage Vs and duty cycle fractions D and D1, find the output voltage Vo. + - Vs - Vo + CBIG Ls ideal ideal RL