EMI
.
RC
RCD
RCD
Abstract: The application of RCD circuit in converter can realize low cost and low parts cout .How to design that circuit is introduced.
Keyword: RCD clamp, Flyback converter
( 100w)
RCD
RCD
RCD
RCD
Vclamp:
Vin:
VD:
Lp:
Llk:
RCD
Rc
Rc
Cc
RCD
RCD
Lp
Llk
Lp
RCD
,
Llk
RCD
Llk
Llk
RCD
RCD
Cc
Vclamp
Vclamp
2
RCD
VOR
Vclamp
VBR(DSS)
VINMAX
Cc
Vclamp
VBR(DSS)
0.9
Vclamp
Llk
Rc
Cc
Vclamp
1%--5%
PR-clamp
WR-clamp
Wl
VOR
Vclamp
(3)
fs
Llk
Ids-peak
(
)
(2)
(4)
Cc
Cc
Cc
Cc
Vclamp
Vclamp
Rc
fs
1/3
5%--10%,
RCD
R C
f