The circuit below, you may note, does not match any of the common op-amp circuits. By performing circuit analysis, determine the voltage across the load resistor R5. You may assume that V1 = 2.4 V, V2 = 3.8 V, R162 kQ, R2 = 45 kQ, R3 = 76 kQ, R4 = 31 kQ, and R5 = 55 kQ. R1 R2 22 — + 1) V1 (+1) V2 R3 R4 24 منست 25 ww R5 Please enter your answer to 3 significant figures.

Q3( (A) Consider you have to analyze a Step-Down DC convertor having the following parameters: Input DC voltage - 24 V, Duty Cycle-0.65, L-20 μH, C = 15 μF, and R = 102. The switching frequency of IGBT/MOSFET Switch is 150 kHz. Analyze the above convertor for the following: a) The output voltage of the convertor b) The maximum and minimum inductor currents. c) The percent ripple in output voltage. (B) The full-bridge inverter of has a switching sequence that produces a square wave voltage across a series RL load. The switching frequency is 60 Hz, Voc-100 V, R=10. and L=25 mH. The power absorbed by load is 440 W. Analyze the above invertor for the following: (a) an expression for load current, (b) Average current in the DC source.

Please answer with details on how to do it. Thank you

8. A voltage doubler is to be designed to supply 8 V or more at up to 50 mA for the control circuits of a dc-dc converter. The converter is supplied from a 6 V battery. Choose capacitor values to meet this need. Will the control circuit continue to work if the battery voltage falls to 5 V?

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Q1: Draw the d.c load line for the circuit shown in figure. NO SIGNAL VBB Vcc= 12.5 V www Re=2.5 k2

The circuit shown in the following in figure has: VIN= 10 V, Vz = 7.2 V@ Iz-40 mA, Izk =2 mA, IzM= 100 mA and Zz-5 2. Determine a) Maximum output voltage. b) Minimum output voltage. c) The percentage load regulation. d) The minimum permissible load resistor value. c) The maximum permissible load resistor value. R 2211 VIS

the current. (c) Determine the power absorbed by the load. Q3) Design a buck-boost converter to supply a load of 75 Wat 50 V from a 40-V source. The output ripple must be no more than 1 percent. Specify the duty ratio, switching frequency, inductor size, and capacitor size.

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Q3. Design a DC/DC buck converter (as shown in Figure Q3) for an input voltage of 12V and an output of 5V at 20A. Assume a switching frequency of 10kHz. Constrain the inductor ripple current to be 10% of the input current and limit the output voltage ripple to 50mVp-p. a) Explain the working mechanism of the converter by sketching equivalent circuit diagrams when the switch Q is ON and OFF, Calculate the duty cycle of the switch. Find the ripple of the inductor current. Calculate the required inductance and capacitance. Sketch the waveform of the output voltage. Is the converter works at continuous conduction mode CCM? If so, give proof of that b) c) d) e) f) g) If the load current varies between 0 and 2A, what is the value of the duty cycle range and at what operating condition? DA L C² Figure Q3 DC/DC buck converter. R