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AN2844 Folha de dados(PDF) 20 Page - STMicroelectronics

Nome de Peças AN2844
Descrição Electrónicos  15 W wide range SMPS for metering
PDF  37 Pages
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Fabricante Electrônico  STMICROELECTRONICS [STMicroelectronics]
Página de início  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN2844 Folha de dados(HTML) 20 Page - STMicroelectronics

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Electrical performances
AN2844
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Table 5 shows the device’s power consumption in no-load conditions.
This board has been designed to work in continuous cycles even with no loads. The reason
for this is an improved transfer response of the circuit, a lower output ripple and enhanced
stability of the converter.
The switching frequency of the ZVS control method used with the L6565 varies according to
the load and input voltage. This behavior has a positive impact on the switching losses
mainly in low-load conditions where the switching frequency rises dramatically to 60 kHz,
the maximum frequency that the application can tolerate.
Table 5.
Power consumption in no-load conditions
VIN = 125 VDC
VIN = 500 VDC
VIN = 1000 VDC
Pin [W]
0.27
0.47
1.50



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