Buck topology Half Bridge HB
Buck topology Half Bridge HB
Buck topology Half Bridge HB
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Prof. S. Ben-Yaakov , Dc-DC Converters [7- 10]<br />
Topology selection<br />
Prof. S. Ben-Yaakov , Dc-DC Converters [7- 11]<br />
V in<br />
V in<br />
V = V<br />
V<br />
1<br />
2<br />
L 1<br />
c1<br />
L 1<br />
V 2<br />
o<br />
V = V<br />
in<br />
= V − V<br />
in<br />
o<br />
C 1<br />
VC1 S<br />
Cuk Converter<br />
L 2<br />
D C<br />
V 2<br />
1<br />
V out<br />
ON OFF<br />
L 2<br />
C<br />
C2 1<br />
V out<br />
R<br />
R<br />
V in<br />
L 1<br />
Vo<br />
= −Vc<br />
1 ⋅ D on (buck)<br />
Vo<br />
= −(<br />
Vin<br />
− Vo<br />
) ⋅ D on<br />
Vo<br />
D on = −<br />
Vin<br />
D off<br />
Voltage<br />
C 1<br />
of C 1 ≈ constant<br />
Prof. S. Ben-Yaakov , Dc-DC Converters [7- 12]<br />
V in<br />
L 1<br />
V 2<br />
Cuk with isolation<br />
S<br />
C 1a<br />
1:n<br />
Any polarity<br />
C 1b<br />
D<br />
Any voltage ratio<br />
Vo<br />
D<br />
=<br />
±<br />
V D<br />
in<br />
on<br />
off<br />
n<br />
L 2<br />
C 2<br />
L 2<br />
V out<br />
C 2<br />
R<br />
V out<br />
R
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