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AN1376 bảng dữ liệu(PDF) 11 Page - STMicroelectronics

tên linh kiện AN1376
Giải thích chi tiết về linh kiện  25W QUASI-RESONANT FLYBACK CONVERTER FOR
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
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AN1376 bảng dữ liệu(HTML) 11 Page - STMicroelectronics

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AN1376 APPLICATION NOTE
Figure 8.
The low frequency residual ripple compared with the ripple across C10 (input Elcap) shows an
excellent rejection of the circuit (>80 dB).
6
MEASUREMENT OF THE RMS CAPACITOR CURRENTS
The tables show the rms currents flowing in the output capacitors at 115Vac and 220Vac, full
load. All the rms currents are within the rating of the capacitor type indicated (Rubycon, YXF
series). This avoids the component overstress that should affect the reliability and/or the ex-
pected lifetime of the SMPS
.
@ 115Vac: ICAP C1 = 1.02 ARMS
@ 115Vac: ICAP C3 = 1.78 ARMS
@ 115Vac: ICAP C19 = 1.15 ARMS
@ 115Vac: ICAP C18 = 140 mARMS
@ 220Vac: ICAP C1 = 0.7 ARMS
@ 220Vac: ICAP C1 = 1.4 ARMS
@ 220Vac: ICAP C19 = 0.92 ARMS
@ 220Vac: ICAP C18 = 130 mARMS
@115 VAC - 50Hz - LINE FREQUENCY RIPPLE
CH1:
VC10
CH2:
+30 Vout
CH2:
+7 Vout
CH3:
+5 Vout
CH3:
+3.3 Vout
CH4:
+12 Vout



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