Question

2. Series resonant converter. (80 points) (a) Plot an SRC topology using full-bridge inverter and voltage doubler (hint: the dual circuit for voltage doubler is the half-bridge inverter) (10 points) (b) Analyze the operation mode when $f_s > f_o$. Please follow the slide format, i.e., Page 6-11. (30 points) (c) Given the following specifications, design an SRC using the voltage gain curve in Fig. 2. For grading purpose, please exactly denote the design steps. (40 points) • input voltage: 100V~200V, • output voltage: 10V • power: 50~100 W • minimum switching frequency: 100 kHz $V_o/V_{in}$ 1.2 1 $Q$=1.5 $Q$=2 0.8 $Q$=3 0.6 $Q$=4 0.4 0.2 $Q = Z_o/R_l$ 0 0.6 0.8 1 1.2 1.4 $f_s/f_o$

          2. Series resonant converter. (80 points)
(a) Plot an SRC topology using full-bridge inverter and voltage doubler (hint: the dual circuit
for voltage doubler is the half-bridge inverter) (10 points)
(b) Analyze the operation mode when $f_s > f_o$. Please follow the slide format, i.e., Page 6-11.
(30 points)
(c) Given the following specifications, design an SRC using the voltage gain curve in Fig. 2.
For grading purpose, please exactly denote the design steps. (40 points)
• input voltage: 100V~200V,
• output voltage: 10V
• power: 50~100 W
• minimum switching frequency: 100 kHz
$V_o/V_{in}$
1.2
1
$Q$=1.5
$Q$=2
0.8
$Q$=3
0.6
$Q$=4
0.4
0.2
$Q = Z_o/R_l$
0
0.6
0.8
1
1.2
1.4
$f_s/f_o$

2. Series resonant converter. (80 points)
(a) Plot an SRC topology using full-bridge inverter and voltage doubler (hint: the dual circuit
for voltage doubler is the half-bridge inverter) (10 points)
(b) Analyze the operation mode when fs > fo. Please follow the slide format, i.e., Page 6-11.
(30 points)
(c) Given the following specifications, design an SRC using the voltage gain curve in Fig. 2.
For grading purpose, please exactly denote the design steps. (40 points)
• input voltage: 100V 200V,
• output voltage: 10V
• power: 50 100 W
• minimum switching frequency: 100 kHz
Vo/Vin
1.2
1
Q=1.5
Q=2
0.8
Q=3
0.6
Q=4
0.4
0.2
Q = Zo/Rl
0
0.6
0.8
1
1.2
1.4
fs/fo

Added by Anne H.

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