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Moteur de recherche de fiches techniques de composants électroniques |
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Moteur de recherche de fiches techniques de composants électroniques |
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DFS04M Fiches technique(PDF) 23 Page - STMicroelectronics |
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DFS04M Fiches technique(HTML) 23 Page - STMicroelectronics |
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23 / 42 page  23/42 AN1262 APPLICATION NOTE Figure 10. Plant transfer function G2(j ω) of DCM Flyback (Bode Plots) Table 15. Plant Transfer Function and its Main Quantities Figure 11. Controller Transfer Function G1(j ω) (Bode Plots) Symbol Definition G2(j ω) G20 fESR fout Gain [dB] Phase [°] Gain Phase 0 -90 0 fout G20 fESR G2 j ω () G2 0 1 j ω ω ES R -------------- + 1 j ω ω out ----------- + ------------------------ ⋅ = G2 0 D max V s -------------- V in R out 2Lp f sw ⋅⋅ --------------------------- ⋅⋅ = f ESR ω ESR 2 π ⋅ -------------- = 1 2 π ESR C out ⋅⋅ ⋅ --------------------------------------------- = f out ω out 2 π ⋅ ----------- 1 π R out C out ⋅⋅ ------------------------------------ == Gain [dB] Phase [°] Gain Phase 0 -90 0 f fZ fP |
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