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VIPER35 датащи(PDF) 18 Page - STMicroelectronics

номер детали VIPER35
подробное описание детали  Quasi-resonant high performance off line high voltage converter
PDF  44 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

VIPER35 датащи(HTML) 18 Page - STMicroelectronics

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Efficiency performance for a typical flyback converter
VIPer35
18/44
DocID026980 Rev 4
7
Efficiency performance for a typical flyback
converter
The efficiency of the converter has been measured in different load and line voltage
conditions. In accordance with the Energy Star average active mode testing efficiency
method, the efficiency measurements have been performed at 25%, 50% and 75% and
100% of the rated output power, both at 115 VAC and 230 VAC.
Table 8. Power supply efficiency, VOUT = 12 V, VIN = 115 VAC
%load
IOUT [A]
VOUT [V]
POUT [W]
PIN[W]
Efficiency [%]
25%
0.31
12.1
3.78
4.53
83.47
50%
0.63
12.1
7.56
8.98
84.21
75%
0.94
12.1
11.34
13.4
84.65
100%
1.25
12.1
15.12
17.93
84.36
Average efficiency
84.17
Table 9. Power supply efficiency, VOUT = 12 V, VIN = 230 VAC
%load
IOUT [A]
VOUT [V]
POUT [W]
PIN[W]
Efficiency [%]
25%
0.31
12.1
3.78
4.71
80.28
50%
0.63
12.1
7.56
9.22
82.02
75%
0.94
12.1
11.34
13.53
83.84
100%
1.25
12.1
15.12
17.77
85.12
Average efficiency
82.82
Figure 25. Power supply consumption at light
output loads, VOUT = 12 V
Figure 26. Power supply consumption at no
output load, VOUT = 12 V



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