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AN4319 数据表(PDF) 9 Page - STMicroelectronics

部件名 AN4319
功能描述  Power over Ethernet - PD converter with 12 V 1 A output
PDF  28 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

AN4319 数据表(HTML) 9 Page - STMicroelectronics

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AN4319
Measurement results
28
3
Measurement results
3.1
Efficiency
Figure 3. Overall and DC/DC efficiency
Figure 3 shows overall and DC/DC efficiencies for the converter. Overall efficiency includes
all loss from RJ45 to the 12 V output voltage rail. DC/DC efficiency is a figure of merit of the
converter standalone, and typically does not include the losses associated to the PoE
interface section, that are: the RJ45 connector, data transformer, bridges, power
consumption of the I/F section of the PM8800A device.



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