تم الحل ✓
categoryهندسة كهربائية
schoolبكالوريوس
event_available2026-07-13
السؤال
Transcribed Image Text:
Q.2 Fig. Q2 shows the instantaneous switch current, isw (t) drawn by a boost DC-DC converter.
isw
2.7 A
0.9 A
30 μs
20 μs
Fig.Q2
(a) Determine the corresponding source voltage of the boost converter for an output voltage
of 30 V for the switch current as shown in Fig. Q2.
(3 marks)
(b) Determine the corresponding value of the inductance needed to realize the switch
current as shown in Fig. Q2.
(6 marks)
(c) Determine the corresponding average value of the diode current for the switch current
as shown in Fig. Q2.
(3 marks)
(d) Determine the corresponding average value of the inductor current for the switch
current as shown in Fig. Q2.
(5 marks)
(e) Sketch and dimension the capacitor current and find out the minimum value of the
capacitance required to make the output voltage ripple to be less than 1% of the rated
output voltage.
(8 marks)
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