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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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DFS04M 数据表(PDF) 23 Page - STMicroelectronics |
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DFS04M 数据表(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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