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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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A7986ATR Fiches technique(PDF) 23 Page - STMicroelectronics |
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A7986ATR Fiches technique(HTML) 23 Page - STMicroelectronics |
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23 / 42 page  DocID022801 Rev 5 23/42 A7986A Application information Figure 12. Open loop gain Bode diagram with ceramic output capacitor 6.4.2 Type II compensation network If the equivalent series resistance (ESR) of the output capacitor introduces a zero with a frequency lower than the desired bandwidth (that is: 2 π∗ESR∗COUT>1/BW), this zero helps stabilize the loop. Electrolytic capacitors show not negligible ESR (>30 m Ω), so with this kind of output capacitor the Type II network combined with the zero of the ESR allows the stabilization of the loop. In Figure 13, the Type II network is shown. |
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