How to Design Buck, Boost & Buck-Boost DC-DC Converters
Following on from the previous video, we take a look at the design steps for these DC-DC converters as well as component selection and a few tips for PCB layout!
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What happens when:
0:00 Introduction
0:58 What we'll be covering
1:46 JLCPCB
2:28 Output voltage vs duty cycle
6:18 Output voltage vs output current
7:44 Calculating component values
8:22 Calculating inductance
17:35 Calculating capacitance (discontinuous current)
22:03 Calculating capacitance (continuous current)
26:03 Summary of component value calculation
26:58 Key datasheet parameters - Inductor
28:45 Key datasheet parameters - Capacitor
30:33 Key datasheet parameters - MOSFET
31:38 Key datasheet parameters - Diode
32:12 Component arrangement/layout
32:56 Dealing with high dV/dt
33:56 Dealing with high dI/dt
35:44 How to locate high dV/dt & dI/dt in a circuit
36:33 Real world voltage ripple
39:01 Calculating efficiency/losses of a specific component (diode)
40:10 Using calorimetry to approximate losses in a specific component
43:25 Conclusion
43:40 Outro
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