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AN1376 bảng dữ liệu(PDF) 18 Page - STMicroelectronics

tên linh kiện AN1376
Giải thích chi tiết về linh kiện  25W QUASI-RESONANT FLYBACK CONVERTER FOR
PDF  35 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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AN1376 bảng dữ liệu(HTML) 18 Page - STMicroelectronics

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AN1376 APPLICATION NOTE
18/35
As expected the circuit protects itself as well. The secondary peak current is obviously lower,
due to the higher circuit impedance.
Figure 18. 3V3 OUTPUT: SHORT C1
Like the previous output voltage the controller keeps under control the circuit preventing in all
conditions the circuit from catastrophic failures. This happens even shorting the output by the
active load.
Figure 19. 12V OUTPUT: SHORT C19
Even the 12V output is well protected against shorts, either by a power switch or by the active
load
@85 VAC
@265 VAC
CH1:
DRAIN VOLTAGE
CH1:
DRAIN VOLTAGE
CH2:
VC11 (Vaux)
CH2:
VC11 (Vaux)
CH4:
ISHORT CIRCUIT
CH4:
ISHORT CIRCUIT
@85 VAC
@265 VAC
CH1:
DRAIN VOLTAGE
CH1:
DRAIN VOLTAGE
CH2:
VC11 (Vaux)
CH2:
VC11 (Vaux)
CH4:
ISHORT CIRCUIT
CH4:
ISHORT CIRCUIT



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