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AN2929 Folha de dados(PDF) 19 Page - STMicroelectronics

Nome de Peças AN2929
Descrição Electrónicos  In consumer applications such as LCD or plasma TVs
PDF  32 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2929 Folha de dados(HTML) 19 Page - STMicroelectronics

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AN2929
Testing the board
Doc ID 15333 Rev 2
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Figure 18.
Input power vs. input voltage for different loads
Figure 19.
Average switching frequency vs. input voltage
Depending on the equipment supplied, we can have several criteria to measure the standby
or light-load performance of a converter. One criterion is the measure of the output power
when the input power is equal to one watt. Table 16 gives the output power needed to have
1 W of input power in different line conditions and Figure 20 illustrates this.
AM02173v1
0
1
2
3
4
80
120
160
200
240
280
V INAC
F
SW_AVG (kHZ)
25 mW
0 mW
50mW
POUT



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