Part 2: In a step-up converter, consider all the components to be ideal, Let Va be 8-16 V, V.-24 V (regulated), f-20 kHZ, Po ≥ 6 W. i). Calculate the minimum inductance L required to keep the converter operation in continuous-conduction mode under all conditions. ii). Specify the value of inductor for a maximum ripple of 3%. iii). Design a capacitor for part (i) and (ii) with a voltage ripple of less than 2%.

Vps = 10 V R = 0.1k02 ww -ovo R₁. Consider the Zener diode circuit shown in figure. The Zener diode voltage is Vz= 5.8V at Iz= 10mA and the Zener resistance is rz = 200. a) Find the output voltage for RL = 1k0 b) Find the change in the output voltage when the load resistance varies +ARL.

A step down converter is operated with a duty cycle of k = 0.75. The input voltage is Vs = 20V, and the load is: L = 5mH, R = 1502. The minimum inductor current is I₁ = 0.1A. The maximum inductor current is: Select one: a. 1.9 A b. None of these OC. 0.9 A O d. 1.1 A Oe. 2 A

For the circuit in the figure, let V input = 8V, Ri = 12ohms, RL = 10ohms, and VZ = 3.3V. Determine the voltages and currents of the resistors and the current of the zener diode.

Vi (t) = 10.sinwt Does not pass positive alternans when Volt input voltage is applied, only Design and explain two different circuits that pass negative alternans. Draw the input and output voltages. What are the types of these circuits? (Note: You can use the ideal diode approach)

Answer a,b,c,d

C'uk Converter Design A C'uk converter has an input of 12 V and is to have an output of - 24 V supplying a 60 W load. Select the duty ratio, the switching frequency, the inductor sizes such that the change in inductor currents is no more than 12 percent of the average inductor current, the output ripple voltage is no more than 1.5 percent, and the ripple voltage across C1 is no more than 3 percent.

one SCR in anti parallel with firing angel of 90° for the 30. A single-phase voltage controller, using a diode, feeds a load R and Vs = 230 V. For a SCR, the PMMC voltage connected across R would read