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AN4165 数据表(PDF) 28 Page - STMicroelectronics

部件名 AN4165
功能描述  This document describes a 12 V - 1 A power supply set in non-isolated flyback topology
PDF  37 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

AN4165 数据表(HTML) 28 Page - STMicroelectronics

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EMI measurements
AN4165
28/37
Doc ID 023661 Rev 1
13
EMI measurements
A pre-compliance test to EN55022 (Class B) European normative has been performed
using an EMC analyzer and an LISN. First of all, a measurement of the background noise
(board disconnected from the mains) was performed and is shown in
Figure 39.
Then the peak and average EMC measurements at 115 VAC/full load and 230 VAC/full load
were performed and the results are shown in
Figure 40, 41, 42 and 43.
Figure 39.
Background noise measurement
Figure 40.
Peak measurement at 115 VAC/full load
AM13386v1
AM13387v1



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