What is the efficiency of the boost converter shown below if R₂ = 6₂R = 100, and D = 0.65? Show the details of your work. i L RL 1 2 + R$ v I
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- 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 AC'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.A step up converter is operated with a duty cycle of k = 0.75. The input voltage is V, = 20V. and the load is: L= 5mH, R = 202. The minimum source current is I = 10A The maximum inductor current is %3D Select one: O a. None of these O b. 24 A Oc 12 A O d. 22 A O e. 16 A
- 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 - ^A step down converter is operated with a duty cycle of k 0.75. The input voltage is V, 20V. and the load is L=5mH, R=152 The minimum inductor current is I 0.1A. The maximum inductor current is %3D %3D Select one: O a. 0.9 A O b. 1.9 A O C. None of these O d. 1.1 A O e.2AQuestion 4 A boost converter has an input of 5V and an output of 20W at 15V. The minimum inductor current must be no less than 50% of the average. The output voltage ripple must be less than 1%. The switching frequency is 30kHz. Determine the duty ratio, minimum inductor value, and minimum capacitor value. Verify your answers using Matlab, show the inductor current is continues and its minimum is no less than 50% of its average. Furthermore, the output voltage ripple is less than 1%.
- For the circuit below and V1 waveform shown, plot Vout: U1 Vout OUT R1 OPAMP 1M V1 C5 20u Input voltage to circuit 15 12 6. 10 15 20 25 Time (msec) V1 (volts) 5/A chopper circuit works at a frequency of 4 kHz of a 220 V dc supply. For 180 V output voltage, find the conduction and blocking periods of a thyristor in each cycle. Select one: a. 0.209 ms, 0.234 ms b. 0.404 ms, 0.055 ms c. 0.204 ms, 0.045 ms d. 0.704 ms, 0.897 msDC 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
- 2. The circuit given below is using a transformer of 230V/30V. The load resistance is 10KS. Find Vin (rms and peak values), Vdiode and VLOAD (Peak and dc values). Draw the input and output voltage waveforms. (Si diode) Vin: Vin rms= Vin peak = VDIODE Vdiode = 4 Vin VLOAD: VLOAD Peak =. Load VLOAD VLOAD DC= 2031 Supply wwwwwwDesign a Cuk converter that has an input of 25V and the output of -30V. The load is 60W. Specify the duty ratio, switching frequency, inductor values and capacitor values. The maximum change in inductor currents must be 20 percent of the average currents. The ripple voltage across capacitor C1 must be less than 5 percent, and the output ripple voltage must be less than 1 percent.A DC-DC boost converter has an input of 200 V with a load of 7.5 Ohm. Find the output voltage and current for Duty Ratio: D= 0.4