C(s) the transfer function, R(s) H;(s) R(s)- G,(s) G(s) G(s) G,(s) C(s) H(s) H3(s) Figure Q2a

Design a Boost Converter whose Features are given below. Input Voltage = 50 V Output Voltage = 120 V Switching Frequency=6 Khz Output Power = 500 W Efficiency =%90 Current fluctuation<%10* Input current Output Voltage Ripple<%1* Output Voltage

Feedback contro 1. obtain the trafer fuction between E0(s) and E1(s) show in Figure 1

5. What is a piezoelectric transducer? Why does the phenomena exist? Explain in brief. Explain the functioning of o thermocounle voltmeter ond evnlain where ond why is

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Moving to another question will save this response. Quèstion 3 In common base configuration of BJT, the input voltage is VC VCB VBE VCE A Mauinnto ona+har cuoctlanwLavo thic a e to search 近

(d) The probable error of themean. 9) Amoving coil voltmeter has a uniform scale with 100 divisions, the full scalereading is 200 Vand 1/10 of a scale division can be estimated with a fair degree of certainty. Determine the resolution ofthe instrument in volt. 1'CC

Q1. a) Consider the signal as shown in figure 4. -2.5 kHz 2.5 kHz Figure 4 i. Sketch the above signal when sampling in the following conditions: - f = 1.25f m - f = 2f m -f = 6fm ii. Write a reflection on the effect of different fs in the part i.

Choose any 4 Questions. Where appropriate, use figures and equations to aid explanation 1.a. What are the two comparator reference voltages in a 555 timer when Vcc = 10 V? 1.b. Determine the frequency of oscillation for the 555 astable oscillators in Figure. 1.c. To what value must Cext be changed to achieve a frequency of 25 kHz? +5.5 V 1.0 kn R₂ • 3.3 ΚΩ Cest 0.047μF RESET DISCH THRESH TRIG 555 GND Vec OUT CONT C₁ 0.01 F 1.d. In an astable 555 configuration, the external resistor R1 = 3.3 k. What must R2 equal to produce a duty cycle of 75%.