Switching Regulator PCB Design Simplified

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In this video you'll learn to design a schematic and PCB layout for a switching regulator without the overwhelm of trying to understand the complex fundamentals of how they work.
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Опубликовано:

3 апр 2024

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Комментарии : 14

@lad4694 2 месяца назад

There are always these tiny nuggets of info i love hearing from experienced folk that I'll never hear otherwise like what you mentioned about the output capacitor on a regulator helping to stabilize the feedback portion to prevent (or encourage in the case of no or poor capacitance) oscillations. Please do more of these tiny tidbits or compile them into a video one day. Edit: you did it again! You mentioned how the resistor divider is located internally for a fixed regulator, but externally for a selectable one. Im sure these are things that will become obvious after the thinking just a little bit, but it's so illuminating when you point it out in the proper context. Thanks for all you do!🎉

@PredictableDesigns 2 месяца назад

I love this feedback, and I'm glad to hear you find these tidbits helpful. I agree it's the little things like these tidbits that can be hardest to figure out on your own. Another tidbit for you. For some regulators (linear or switching) you'll see a small capacitor placed in parallel with the top resistor of the resistor divider. This is called a feedforward cap, and it also helps with stabilizing the feedback loop on some designs. Thanks for watching and for commenting:)

@eduardonunes9229 2 месяца назад

Great video!

@PredictableDesigns 2 месяца назад

Thanks!

@AliensInc. 2 месяца назад

Please do a boost smps video also. In my case 12V to 24V 2A

@hamadsherazi6896 2 месяца назад

Excellent content John. I am Hware academy member

@PredictableDesigns 2 месяца назад

Thanks Hamad! I know your name well and I'm happy to have you as a member.

@hamadsherazi6896 2 месяца назад

@@PredictableDesigns The best thing in your content as always is the practical approach

@BRUXXUS 2 месяца назад

In my design, I’m using a TPS61022 boost converter IC. Designed a test board using all the TI recommended components and values, used suggested layout, and it would self destruct every time, even at low current. Found out from others that it NEEDS the feed forward capacitor which is just an optional thing on the data sheet. That baffled me. Using their actual design leads to a non-functional circuit. Suppose the lesson I learned was to always double check with other’s experiences with a part before using it to see if it works as intended? Adding that feed forward capacitor fixed everything. :)

@PredictableDesigns 2 месяца назад

Interesting. That feed forward cap helps with stabilizing the feedback loop, but like you said it's usually optional.

@BRUXXUS 2 месяца назад

@@PredictableDesigns The data sheet did have a complex formula to calculate the value of the feed forward cap which I tried to work out, but ended up just throwing on a really small value and it's working great! I also learned about the feed forward capacitor and how it's used to stabilize the feedback loop. Really interesting stuff! Thanks for another amazing video!