Power Electronics - Inductor Sizing for the DC to DC Buck Converter

In this video we drive the input-output relation ship for the buck converter. We show that Vo = DVi and we also provide a design equation for sizing the inductor.
TI provides some great resources and below are two links that you should check.
"Basic Calculation of a Buck Converter's Power Stage," by Brigitte Hauke, Application Report SLVA477B, Dec 2011, revised Aug 2015
www.ti.com/lit/...

[@tahoon2009]

Clearly explained for practical application, It's beautiful how you integrated the relationship in typical design requirement.

[@powerelectronicswithdr.k1017]

Thank you.

[@amansingh-ct8ie]

Great series was waiting a long for such tutorial.

[@powerelectronicswithdr.k1017]

Aman, glad it was helpful. -Dr K

[@kabandajamir9844]

So nice thanks sir

[@MarkFunderburk]

I love the intro music

[@seanm2511]

Interesting choice to consider synchronous switch mode converters before asynchronous switch mode converters. It's as applicable or more these days.

[@powerelectronicswithdr.k1017]

Hi Sean, I really like to think of that opening diagram as a generalized topology. The asynchronous converter uses a diode for the low side switch and the diode switches automatically. You are correct on the applicability of the synchronous topology. Synchronous converters are becoming much more ubiquitous. This is due to the low cost controllers and low cost silicon FETs. Also as we increase power densities, heat via losses is much more critical. Thanks for the comments. Best wishes on your designs. DrK

[@seanm2511]

@@powerelectronicswithdr.k1017 Sure. It is a completely valid and simpler to consider a switched topology first. It's just a bit unusual to me as the way I learned was different, back when we walked to school 20 miles through the dinosaurs... :)

[@AmitSinha249]

Thank you Sir.

[@amansingh-ct8ie]

Please do make a descriptive video on design and selection of components for the buck converter for Vi = 40 to 60 volts, Vout = 12 volts and Io = 5 amp (max). And kindly also do provide your contact such as mail or linkedin.

[@kkkkkkkkk9042]

Hi Dr. Great explication but i`ve a dude.. In book Fundamental power electronics by dr. eriksson, considers that the inductor calculus is divide by two? Vo(1-D)/2Fs(delthaIo).. What is the diference with this equation. Thanks and greetings.

[@powerelectronicswithdr.k1017]

Hi Jaun Carlos, I just review Dr. Eriksson's equation. The "delta_i" used in that equation is the difference between the average value, I, and the peak value Imax. The "delta" that I am using is I_max - I_min and this value is twice the value that Dr. Erikkson uses. The drawings in his text and my videos should help resolve this. Best wishes on your design. -Dr. K

[@kkkkkkkkk9042]

@@powerelectronicswithdr.k1017 Trank you Dr k. for your answer... It`s true the delta used is different only for the design consider this.. Thank you very much and have a nice day.. greetings. and great channel...