LNK500
L1
1 mH
LinkSwitch
T1
1
4
D
S
5
5.5 V,
500 mA
C3
0.22 µF
50 V
C
U1
LNK500
15 T
30 AWG
TIW
116 T
34 AWG
C5
470 µF
C4
0.1 µF
100 V
BR1
1 A, 600 V
10 V
RF1
10 Ω 1 W
Fusible
R1
20.5 kΩ
1%
RTN
3
6
D6
C1
4.7 µF
400 V
C2
4.7 µF
400 V
11DQ06
85-265
VAC
EE13
D5
1N4937
L
= 2.55 mH
PERFORMANCE SUMMARY
Output Power: 2.75 W
P
Efficiency:
≥72%
R2
100 Ω
No Load
Consumption: 260 mW, 230 VAC
200 mW, 115 VAC
PI-3419-071304
Figure 9. 2.75 W Constant Voltage/Constant Current (CV/CC) Charger using LinkSwitch.
10
9
V
V
V
V
IN = 85 VAC
IN = 115 VAC
IN = 185 VAC
IN = 265 VAC
8
7
6
5
4
3
2
1
0
0
100
200
300
Output Current (mA)
Figure 10. Measured Output Characteristic of the Circuit in Figure 9.
400
500
600
700
D
2/05
7