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HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY – FACULTY OF ELECTRICAL AND ELECTRONICS ENGINEERING INTRO TO ELECTRICAL AND COMPUTER ENGINEERING (ECE110) FINAL EXAMINATION Summer Semester – Academic year 2012-2013 Duration: 90 Student’s Name Score Student ID Number Lecturer om Department of Electronics Engineering C Dr Le Chi Thong Si nh Vi en Zo ne INSTRUCTIONS: Answer on this question sheet Books, notes, laptops, iPads, … are NOT accepted Arithmetic-only calculators are accepted Show all your work, e.g., your solution process, the equation(s) that you use, the values of the variables used the equation(s), … Include the unit of measurement in each answer Do NOT communicate with any other students Page of SinhVienZone.com https://fb.com/sinhvienzonevn HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY – FACULTY OF ELECTRICAL AND ELECTRONICS ENGINEERING Si nh Vi en Zo ne C om Problem The unit of all resistances in the following circuit is Ohm Find I1, I2, I3, the node method (2.0 points) I 1= I2= I3= VB= Page of SinhVienZone.com https://fb.com/sinhvienzonevn VB using HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY – FACULTY OF ELECTRICAL AND ELECTRONICS ENGINEERING Problem Use the following circuit for this problem Si nh Vi en Zo ne C om a Find the Norton equivalent circuit for C1, and next find the Thevenin equivalent circuit for C2 (1.0 points) b Compute the current I3 (0.5 points) I 3= Page of SinhVienZone.com https://fb.com/sinhvienzonevn HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY – FACULTY OF ELECTRICAL AND ELECTRONICS ENGINEERING Si nh Vi en Zo ne C om Problem Use the large signal model for diode, specify and find voltage VD1 , current ID1 of diode D1, and voltage VD2 , current ID2 of diode D2 (2.0 points) VD1= ID1= VD2= ID2= Page of SinhVienZone.com https://fb.com/sinhvienzonevn HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY – FACULTY OF ELECTRICAL AND ELECTRONICS ENGINEERING Problem Use the following circuit for this problem Given Vcc = 5V; VBEON = 0.7V; β = 100; VCESAT = 0.2 (2.0 points) IC= ne IB= C om a When Vin = 2.5 V, determine IB, IC, VCE and the state of transistor State VCE= State VCE= IB= Si nh Vi en Zo b When Vin = V, determine IB, IC, VCE and the state of transistor IC= c Determine ICSAT, IBSAT, ICSAT= VINSAT IBSAT= VINSAT= Page of SinhVienZone.com https://fb.com/sinhvienzonevn HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY – FACULTY OF ELECTRICAL AND ELECTRONICS ENGINEERING om Problem (2.5 points) a Convert the following numbers to the required number systems Please show your work 26D = ?B 1011 0100B = ?D 138D = ?H 1011001010B = ?H B 1011 0100B = D 138D = H 1011001010B = H C 26D = F1 0 1 0 Zo C 1 1 F1 = en B 0 1 0 1 nh Vi A 0 0 1 1 ne b Use the truth table given below for this problem Write the expression SOP form Si Draw the AND-OR circuit for F1 c Minimize the expression F1 in (b) and prove that ̅ Page of SinhVienZone.com https://fb.com/sinhvienzonevn F1 in the canonical ... the required number systems Please show your work 26D = ?B 1011 010 0B = ?D 138D = ?H 1011 0010 10B = ?H B 1011 010 0B = D 138D = H 1011 0010 10B = H C 26D = F1 0 1 0 Zo C 1 1 F1 = en B 0 1 0 1 nh Vi... the Norton equivalent circuit for C1, and next find the Thevenin equivalent circuit for C2 (1.0 points) b Compute the current I3 (0.5 points) I 3= Page of SinhVienZone. com https://fb .com/ sinhvienzonevn... voltage VD2 , current ID2 of diode D2 (2.0 points) VD1= ID1= VD2= ID2= Page of SinhVienZone. com https://fb .com/ sinhvienzonevn HO CHI MINH CITY UNIVERSITY OF TECHNOLOGY – FACULTY OF ELECTRICAL
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