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AN2844 bảng dữ liệu(PDF) 20 Page - STMicroelectronics

tên linh kiện AN2844
Giải thích chi tiết về linh kiện  15 W wide range SMPS for metering
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AN2844 bảng dữ liệu(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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