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Old 05-19-2006, 05:43 PM   #1
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Default Anatomy of Switching Power Supplies

There has been a new article posted.

Title: Anatomy of Switching Power Supplies
URL: http://www.hardwaresecrets.com/article/327

Here is a snippet:
"Power supplies used on the PC are based on a technology called “switching mode” and thus are also known as SMPS, Switching Mode Power Supplies. In this tutorial we will explain you how switching power..."

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Old 08-27-2007, 06:46 AM   #2
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Default Great Article

This is the single best article I've found on PC power supplies. Thanks for putting it together, it was a real help in figuring out where all the components were.
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Old 10-25-2007, 05:41 PM   #3
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Default Good report.

A good primer on PSU operation.

I would have like to see more information on control circuitry that provides software activation, voltage sense and behavior under no load.
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Old 10-26-2007, 06:58 AM   #4
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Hi fpal,

I plan to update this tutorial not only with the information you ask but also adding detailed info about the protections (short-circuit, over current, etc). Hold on!

Thanks for your feedback.
Gabriel.
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Old 05-21-2008, 11:28 AM   #5
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Default Great article

Two years ago I first saw this article and learned SMPS basics from it. The I bought several textbooks on SMPS basis and started studying. Several months ago I translated this article into a Chinese version and I realized there's a need to do some necessary updates and corrections.
Translating all those "corrections" I made into English really takes time for me, so if possible I'll just point out where I think is questionable, and discuss on it.
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Old 05-21-2008, 07:22 PM   #6
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Hi Travis and welcome to our forums,

I plan to update this tutorial very shortly.

You would help me a lot pointing out "errors" or things you think should be explained in more details.

Also, if you could recommend some textbooks on SMPS I would be very happy, there are hundreds of books about them on Amazon.com, making it hard to pick the good ones.

I hope you translated my tutorial for personal usage only. If you translated for re-posting we need to talk.

Cheers
Gabriel.
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Old 05-21-2008, 11:43 PM   #7
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Quote:
Originally Posted by Gabriel Torres View Post
Also, if you could recommend some textbooks on SMPS I would be very happy, there are hundreds of books about them on Amazon.com, making it hard to pick the good ones.
I recommend
"Switching Power Supply Design" by Abraham I. Pressman and
"Switchmode Power Supply Handbook" by Keith Billings

Also you can read tutorials and documents on ON semi's website.

I'm now reading two textbooks written in Chinese and one in English. The one in English is a masterpiece from Keith Billings called "Switchmode Power Supply Handbook". One of the Chinese book is the translated version of Abraham I. Pressman's "Switching Power Supply Design". These books are good since they cover most of today's technology used on PC power supplies and have thorough explanations.

One thing I want to point out is the Active Clamp Forward(or Double Forward) topology used on Antec TPQs and some Zippy units. ON Semi is promoting it and I think many 80Plus bronze/silver units will apply this design in the next year.

You can also check your mailbox
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Old 05-22-2008, 05:34 AM   #8
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Thank you so much for your input. I will buy these books right away. The main problem I was finding is that several books on swithing mode power supplies simply don't cover newer designs and PC power supply designs.

Cheers,
Gabriel
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Old 05-22-2008, 05:39 AM   #9
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Hi,

Just to let you know that Pressman's book will get a new updated version in September 2008. I can't wait!

Cheers,
Gabriel.
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Old 06-06-2008, 01:21 AM   #10
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Default a few questions...

Dear Gabriel,

I want to ask you about PSUs. Well, You are so value person with your perfect reviews for me.

I curious that How can be understand connection types of components whether it was connected serial or parallel ?

What does "the switching" mean about transistors and circuits ? How to works ? and Why is it calling "switching" ?

Thanks.







Quote:
Originally Posted by Gabriel Torres View Post
Hi,

Just to let you know that Pressman's book will get a new updated version in September 2008. I can't wait!

Cheers,
Gabriel.
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