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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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L5963 датащи(PDF) 31 Page - STMicroelectronics |
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L5963 датащи(HTML) 31 Page - STMicroelectronics |
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31 / 45 page  DocID028553 Rev 1 31/45 L5963 Application information 44 Equation 12 The figure below shows the asymptotic Bode gain plot for the TYPE III compensated system and the gain and phase equations for the compensated system Figure 14. TYPE III compensated network diagram Here an example of calculating the external components network step by step. Suppose the requirements for a dc-dc regulator are the following: Input voltage minimum Vin(min) 8 V Input voltage maximum Vin(max) 26 V Input voltage typical Vin(typ) 14 V Output voltage buck regulator 1- VBUCK 1 Min = 4.75 V, Max = 5.25 V Converter switching frequency, fsw 250 kHz Maximum output current on buck regulator 1-VBUCK 1 3 A Maximum ripple current IRipple 0.3* Iout Load transition requirement 500 mA ↔ 1.5 A in Δt = TBD Assume TYPE III Compensation network. STEP 1 - Calculate the inductor value Using Equation 13, to find the inductor value, assume inductor ripple current of 0.9 A. Equation 13 |
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