Prelab12

DC to AC 1) Determine the efficiency of the following DC to AC converter (i.e. how much of the energy is in the Ist harmonic?). (on for 10ms (+20V), off for 20ms, on for 10ms (-20V), off for 20ms, repeat) +20V 20ms 20ms 10ms ov 10ms -20V 1) Determine the efficiency of the following DC to AC converter (i.e. how much of the energy is in the Ist harmonic?). +2-V -20V 10ms 20ms Oms 30ms 40ms

For the following zener clipper draw the output waveform Vz1 = 5V, Vz1 = 7V VK = 0.8v lkn ISV V₁₂ 5V 2, 72. -5V Q2 Determine The Output Waveform And Calculate The current and PIV 1kQ 1kQ 10 V 10 si www www Q. For the circuit shown in Figure below (1),find the maximum and minimum values of zener diod current. Live 5 ΚΩ www I IL 15 80-120 V 10 ΚΩ LIR 101 102 1015 S Ne 1 k0 www Iz 50 V U2 -ot V. Fumal inash

A buck converter is working in a steady state. The output voltage and the inductor current can be assumed to be ripple-free, The inductor voltage v during Ton is 50V and during Toff is 3OV. Assuming all devices are idea then: What is the input voltage? Answer: 70

A dc-dc converter for a computer notebook is to be designed based on design specifications shown in the picture. Complete the design by specifying the type of dc-dc converter to be employed as well as the size (or value) of inductor and capacitor to be used. Use minimum inductor size (or value) for your design.

Exercise 2: Buck Converter Design: Design a buck converter to produce an output voltage of Vo=18 V across a R=10Q load resistor. The output voltage ripple must not exceed 0.5 percent (AVo/Vo). The de supply is Vin=48 V. Design for continuous inductor current. Specify the duty ratio, the switching frequency, the values of the inductor L and capacitor C, the peak voltage rating of each device, and the rms current in the inductor and capacitor. Assume ideal components.

4- Design a boost converter that will have an output of 60 V from a 24-V source. Design for continuous inductor current and an output ripple voltage of less than one percent. The load is a resistance of 50 2. Assume ideal components for this design. VL ooooo ip - ^

Using 2nd approximation

The buck converter with resistive load has the input voltage of 30[V], the output voltage of 10 (V] (constant), and the switching frequency of 30 [kHz]. If the output average power is 20[W], then determine the size of the inductor such that the minimum inductor current is 25 % of the average inductor current.

A step down converter has a load resistance R-0.50hms. an input voltage Vs-200V and a battery voltage E-20V. The average load current la=250A and the converter frequency is 400 Hz. The value of the inductance L that would limit the maximum load ripple current to 5% of la, would be equal to: Select one: O a. 9 mH O b. None of these O c. 26 mH O d. 15 mH

Using a positive Clamper Circuit, with an AC voltage of Vi = 13v with a frequency of 60hz, a value of 100u for the Capacitor, a silicon diode and a resistor with the value of 1000 ohms. Find the voltage value on the resistor at a simulation of 20ms. 2Vm Vm Vm Vo -Vm Input Waveform Output Waveform Positive Clamper circuit

A step down converter has a load resistance R-0.5Ohms, an input voltage Vs-200V and a battery voltage E-OV. The average load current la-250A and the converter frequency is 1000 Hz. The value of the inductance L that would limit the maximum load ripple current to 5% of la, would be equal to: Select one: O a. 15 mH O b. None of these O c. 4 mH O d. 9 mH

I need a clear step by step answer please and explanation please on how to obtain the values of Th and Tl and Vl

Please try to understand the solution and try to answer in typing format please ASAP for the Pl

EX3) Design a boost converter to provide an output voltage of 36V from a 24 V source. The load is 50 W. The voltage ripple factor must be less than 0.5%. Specify the duty cycle ratio, switching frequency, inductor and capacitor size, and power device.