Department of Electrical,
& Biomedical Enaineerino
Faculty Qf
EXAMINATION
ELE754 Power Electronics
Duration: 3 Instructor:
Date: ,2025 Dr. D. Xu
INSTRUCTIONS:
1. formula sheets are provided with book. The formula .:lU'-''-'CJ
marked. DO NOT
2. please write on
3. steps. Marks
in terpreta Hon
a Clear statement of any
5. and currents are rms otherwise. For
are line-to-line noted otherwise.
6. carefully! Part of questions mayor may not be related.
Marks:
Q1.
Q2.20%_ _ _ _ _ __
Q3.3
Q4.3
Student Na
Student
, Question 1 (20°/0) DC-DC Converter
A buck converter is used battery production lines to charge the
1 and the voltage with the A
in 2. The
converter is operating in
state.
lL
VBAT
+
Vd Vo
I Buck converter for battery
IBAT (A) Constant Current
charging
Trickle
11 1--
T(V)
1) the of duty if charging current is
5%
0,
I'
},
Page 1 of8
& Biomedical Enaineerino
Faculty Qf
EXAMINATION
ELE754 Power Electronics
Duration: 3 Instructor:
Date: ,2025 Dr. D. Xu
INSTRUCTIONS:
1. formula sheets are provided with book. The formula .:lU'-''-'CJ
marked. DO NOT
2. please write on
3. steps. Marks
in terpreta Hon
a Clear statement of any
5. and currents are rms otherwise. For
are line-to-line noted otherwise.
6. carefully! Part of questions mayor may not be related.
Marks:
Q1.
Q2.20%_ _ _ _ _ __
Q3.3
Q4.3
Student Na
Student
, Question 1 (20°/0) DC-DC Converter
A buck converter is used battery production lines to charge the
1 and the voltage with the A
in 2. The
converter is operating in
state.
lL
VBAT
+
Vd Vo
I Buck converter for battery
IBAT (A) Constant Current
charging
Trickle
11 1--
T(V)
1) the of duty if charging current is
5%
0,
I'
},
Page 1 of8
