Alvaro_Grijalva_LabProposal_EEL3110 Circuit Analysis

hese blockS. c) Explain the difference between the modulator and demodulator blocks and explain the terms up-conversion and down-conversion.

QUESTION 1 Design a high efficiency 3.3 V, 5A d.c.to d.c. power converter from a 4 to 5.5 Vdc source. The maximum allowable inductor current ripple and output voltage ripple are 0.1A and 20 mV, respectively. Assume a switching frequency of 20 kHz. a) Design a suitable converter power circuit using a MOSFET switch, showing all calculation of inductor and capacitor values and drawing a circuit diagram of the final design including component values. Indicate the peak inverse voltage and forward current rating of any diode required, and the maximum drain- source voltage of the MOSFET. b) On the Schematic diagram, draw the path of the current flow during the ON time and the OFF time. c) Describe the effect of changing the values of the inductor and the capacitor in the circuit. d) What is the effect of switching frequency in the circuit? e) Draw the schematic diagram of a circuit with the output voltage higher than the input voltage.

transformer ac line 120 V (ms) 60 Hz Diode rectifier Voltage regulator Filter Load Block diagram of the rectifier circuit is given above. Create a block diagram for audio amplifier system with at least 5 blocks (Add physical equivalent of the input and output). Indicate all the input and output signals and voltage levels approximately on the diagram. Explain briefly the design steps of the audio amplifier with your own words. Comment about the most critical parts to be considered in designing process.

3) Explain the construction, principle of operation, circuit and applications of Variable reluctance transducer with neat diagrams. 4) Describe the construction of LVDT and explain its principle of operation with the aid of diagram, list the advantages, disadvantages and applications of LVDT.

........ (Figure-1) R. RB= 380kN,Rc= 1kN B = 100, VBB = Vcc=12V RB ww Vec CC ......... I, V CE СЕ V ВЕ BB Q-1-b) Describe briefly the input / output characteristics and application of Common Emitter BJT Configuration

Please could you complete this electronics question about Circuit Analysis.

Give an example of an analogue device that can be used as a phase comparator in a PLL system and explain its operation.

Question 4 Block diagram of the rectifier circuit is given above.Create a block diagram for audio amplifier system with at least 5 blocks (Add physical equivalent of the input and output). Indicate all the input and output signals and voltage levels approximately on the diagram.Explain briefly the design steps of the audio amplifier with your own words. Comment about the most critical parts to be considered in designing process.

A 555 timer configured to run as an astable mode oscillator is shown in Figure 1. If the output is needed to have 30% duty cycle, i) Determine the required value of Rị if R2 = 7kN. ii) Determine the frequency of the output. iii) Draw the charging and discharging phase of capacitor Cext and its relation with the output waveform. ASsume Vcc = 12 V. +Vcc (4) |(8) R1 RESET Vcc (7) DISCH 555 D1 R2 (6) THRESH (3) OUT (2) TRIG (5) CONT GND :Cext 0.01 µF (1) 0.01µF Figure 1

4- What is the effect of adding capacitor in parallel to the load at the rectifier output? Note: Please do not handwritten.

CT -2: Answer all parts