Datasheet
NCP1028
http://onsemi.com
27
85-265 VAC
+
+
1
2
3
45
7
8
U2
NCP1028
C13
220 nF
Type = X2
C4
47 mF/
400 V
R1
2.8 M
R10
200 k
R3
18 k
C1
10 n
CV
CC
47 mF
R2
78 k
C12
100 p
R9
5.6 k
20 V
+
C11
1 mF
D2
1N4637
R5
150 k
Type = 1W
C7
10 nF
Type = 400 V
+
C5
470
mF
+
C8
470
mF
+
C9
470
mF
D1
MBRD640CTT4
C10
2.2 nF
Type = Y1
R4
100
U1
TL431
R11
1 k
R6
10 k
+
C3
100 mF
C2
100 nF
R7
10 k
Vout
5 V @
3 A
L2
2.2 mH
Np:Ns = 1:0.062
Np:Naux = 1:0.208
Lp = 3.8 mH
Figure 46. 5.0 V-3.0 A Universal Mains Power Supply
D5
1N4637