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AN2852 bảng dữ liệu(PDF) 18 Page - STMicroelectronics

tên linh kiện AN2852
Giải thích chi tiết về linh kiện  This document describes the characteristics and performance of a 90 W wide range input
PDF  35 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2852 bảng dữ liệu(HTML) 18 Page - STMicroelectronics

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Electrical performance
AN2852
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The efficiency taken at 25%, 50%, 75% and 100% of rated load allows calculating the
average efficiency required by the ENERGY STAR® specification.
Table 4 shows the no-load consumption. The adapter has good values (about 300 mW at
230Vac), considering that it is a two-stage system with the PFC stage always on.
This adapter meets the two conditions required by ENERGY STAR® specification version
2.0 (average efficiency > 87% and no-load input power < 0.5 W) for an external power
supply (EPS). Therefore this SMPS is EPA 2.0 compliant.
Figure 16 shows the graph of the efficiency vs. output power while Figure 17 shows the
graph of the input power vs. input voltage with no load applied.
Figure 16.
Efficiency vs. O/P power
Table 3.
Average efficiency for EPA
Vin [Vrms]
Average efficiency for EPA
115
87.44%
230
88.19%
Table 4.
No-load consumption
Vin [Vac]
90
115
135
180
230
264
Pin [W]
0.215
0.225
0.235
0.255
0.290
0.315
AM01831v1
Efficiency
66.00%
68.00%
70.00%
72.00%
74.00%
76.00%
78.00%
80.00%
82.00%
84.00%
86.00%
88.00%
90.00%
92.00%
020
40
60
80
100
Output power [W]
115Vac
230Vac



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