EPR-12 Datasheet, PDF (31/40 Pages) Power Integrations, Inc. – Engineering Prototype Report for EP-12 - 145 W PC Forward Converter with TOP247 and 10 W 5 V Output Standby Flyback with TNY266

01-Feb-05
EPR-12 – PC Forward Converter with Standby Flyback Power Supply
10 Performance Data
10.1 Efficiency and Regulation
Output Current
Output Voltage
Pin
Load Input VAC +5 V +12 V +3.3 V +5 VSB +5 V +12 V +3.3 V +5 VSB
(A)
(A)
(A)
(A)
(V)
(V)
(V)
(V)
(W)
1
132
0.4
0.05
0.5
0
5.09 12.02 3.31 5.05
10
2
132
0.4
0.05
12
2
5.07 11.92 3.21 4.89
72
3
132
0.4
3
0.5
2
5.11 11.6 3.29 4.84
62
4
132
0.4
3
12
0
5.1 11.54 3.23 5.1
103
5
90
15
0.05 0.5
2
5 12.41 3.28 4.8
114
6
90
15
0.05
12
0
5 12.45 3.2 5.07
154
7
90
15
3
0.5
0
5.02 11.95 3.28 5.13
146
8
90
15
3
12
2
4.99 11.92 3.2 4.86
223
9
115
15
3
12
2
4.99 11.93 3.21 4.83
217
10
230
0.5
4.87
3.9
11
115
0.4 0.0168 0.5
2
5.1 12.1 3.33 4.87
20
12
115
15 1.9690 12
2
4.99 12.03 3.2 4.87
198
Efficiency
43%
71%
77%
72%
76%
74%
77%
71%
73%
64%
67%
74%
Note: 12 V load table does not include the 100 mA internal load, which is equivalent to
fan loading.
Page 31 of 40
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