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AN4164 データシート(PDF) 22 Page - STMicroelectronics

部品番号 AN4164
部品情報  This document describes a 12 V-350 mA power supply set in non-isolated flyback topology
PDF  38 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN4164 データシート(HTML) 22 Page - STMicroelectronics

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AN4164
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Doc ID 023660 Rev 1
The protection acts in auto-restart mode with tRESTART = 1sec (Figure 35). As the fault is
removed, normal operation is restored after the last tRESTART interval has been completed
(
Figure 37).
Figure 34.
Feedback loop failure protection:
tripping
Figure 35.
Feedback loop failure protection:
steady-state
AM13203v1
Output short is
removed here
tRESTART
Normal
operation
Fault is applied here
Normal
operation
VDD reaches VDDCLAMP
< tOVL
AM13204v1
tRESTART
Figure 36.
Feedback loop failure protection:
steady-state, zoom
Figure 37.
Feedback loop failure protection:
converter restart
AM13205v1
< tOVL
AM13206v1
tRESTART
Fault is removed here
Normal
operation



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