Datasheet

NCL30081
http://onsemi.com
16
Constant Current Control
Figure 43 portrays the primary and secondary current of
a flyback converter in discontinuous conduction mode
(DCM). Figure 42 shows the basic circuit of a flyback
converter.
.
.
DRV
Clamping
network
Transformer
Figure 42. Basic Flyback Converter Schematic
C
lump
R
sense
V
out
N
sp
L
p
L
leak
V
bulk
C
clp
R
clp