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AN2844 Datasheet(PDF) 20 Page - STMicroelectronics |
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AN2844 Datasheet(HTML) 20 Page - STMicroelectronics |
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20 / 37 page  Electrical performances AN2844 20/37 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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