MC44603
Figure 49. 125 W Input Power Off–Line Flyback Converter with Bipolar Switch
185 Vac
to
270 Vac
RFI
Filter
R1
1.0/5 W
C3
1.0 nF/1.0 kV
C4 ... C7
1.0 nF/1000 V
R3
4.7 M
D1 ... D4
1N4007
C1
100 µF
C32 220 pF
120 V/0.5 A
C31
D8
MR856
L1
1.0
D5
1N4934
C30
100
R2
68 k/2 W
µ
H
µ
F
0.1 µF
C2
220
µF
V
CC
C29 220 pF
C16
100 pF 27 k
R4
28 V/1.0 A
C28
9
8
7
6
5
4
3
2
1
D9
MR852
C27
1000
D6
1N4148
C9 1.0 nF
µ
F
0.1 µF
R9 1.0 k
L
L
p
10
11
12
13
14
15
16
aux
R5
1.2 k
C15
1.0 nF
C14
C10 1.0 µF
4.7 nF
C26 220 pF
R7 180 k
15 V/1.0 A
C24
R6
150
R8
15 k
R15
5.6 k
D10
MR852
C18
2.2 nF
C25
1000
0.1 µF
µ
F
C11
1.0 nF
D13 1N4728
D15 1N5819
R10 10
MJF18006
D12
MR856
R16
22 k
C23 220 pF
C34 1.0 µF
8.0 V/1.0 A
C22
R11 39
D11
MR852
C21
1000
R14
0.33
R13
1.0 k
R17
22 k
µ
F
0.1 µF
C13
R18
27 k
R19
10 k
100 nF
R24
270
R23
117.5 k
MOC8101
R21
10 k
C19
100 nF
D14
1N4733
C20
33 nF
TL431
R25
1.0 k
C12
6.8 nF
R22
2.5 k
21
MOTOROLA ANALOG IC DEVICE DATA
ONSEMI [ ONSEMI ]
