Author Topic: Recommending Switching Power Supply Design, and (perhaps) its readers club  (Read 795 times)

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Offline max.wwwangTopic starter

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I would like to recommend the book Switching Power Supply Design (Pressman et al), which I recently came across when wanting to learn a bit more about SMPS, triggers by a repair project.

I had a read of the chapter about the flyback topology, and it immediately let me see through the essence of it, which was extremely satisfying.

Then I read the Preface written by its second author, with amusement. A read of it is recommended to all.

Perhaps, if there is enough interest and like-minded people here, we can let this thread grow as a readers' club of this book, to exchange ideas, questions, insights, etc.
« Last Edit: January 17, 2025, 10:49:10 pm by max.wwwang »
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Offline max.wwwangTopic starter

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Now I start from the beginning of the look, hoping to have a systematic review -- but without commitment to finishing! (Too often I open too many looks and leave too many unfinished.)

I now have a question about Figure 1 (attached, which is about the basis of topologies, the linear regulator). It's on p 44 of the pdf. 

Can someone please help me, why is there a capacitor Cf here? It looks like a full wave regulator, which does not have this. What's its function and how does it work in this circuit?
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Offline ledtester

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It very well could be a misprint... the standard schematic is:



-- taken from https://www.physics-and-radio-electronics.com/electronic-devices-and-circuits/rectifier/fullwaverectifierwithfilter.html where you can also find a description of its operation.
« Last Edit: January 20, 2025, 01:24:45 am by ledtester »
 
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Offline max.wwwangTopic starter

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It very well could be a misprint...

Thank you. That is a surprise to me, and is perhaps somehow embarrassing, because as said this is the basis (and basics) of other more advanced topologies, and yet the book does not get it right.

To be sure that this is not an error (as it appears now) that only exists in the online version (as opposed to the printed book). I checked out the scanned version of its second edition on Internet Archive. It has exactly the same diagram (attached). I can't believe it.
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Offline max.wwwangTopic starter

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To my embarrassment, there is another editing error in another figure on p 51 of the pdf. The text "Error amplifier" should be placed above the symbol for the EA not PWM. Screenshot attached.

Despite these issues, I'm still faithful about the quality of the book and will carry on reading.
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