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Power Supply Cookbook, Second Edition (EDN Series for Design Engineers) Paperback – 3 May 2001
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- ISBN-10075067329X
- ISBN-13978-0750673297
- Edition2nd
- PublisherNewnes
- Publication date3 May 2001
- LanguageEnglish
- Dimensions17.78 x 1.63 x 25.4 cm
- Print length280 pages
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"...a practical, "start-to-finish" design reference. It is organized to allow both seasoned and inexperienced engineers to quickly find and apply the information they need." --ElectronicsWeb
"Want to know how those new, strange looking switching power supplies work? Skimming this book is certainly one very nice way to learn their functions. Want to try designing your own, with a reasonable probability of success? Just follow the cookbook!
Fortunately, for those of us with little switching-mode power supply experience, two basic configuration are shown to begin the design sections. Basic schematics and waveforms, with simplified equations, introduce the forward-more converter and the boost-mode converter. Thus, the flow chart on the following page, used to guide you to a complete design, now makes sense." --QST
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Product details
- Publisher : Newnes; 2nd edition (3 May 2001)
- Language : English
- Paperback : 280 pages
- ISBN-10 : 075067329X
- ISBN-13 : 978-0750673297
- Dimensions : 17.78 x 1.63 x 25.4 cm
- Best Sellers Rank: 1,931,569 in Books (See Top 100 in Books)
- 74 in Electric Motors
- 244 in Power Generation & Distribution
- 291 in Electromagnetic Theory
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It is practical and a good reference at least for the novice, but remember, this is not a book for somebody that do not understand the meaning on poles an zeros, neither for the one do not know how to bias a bjt.
There is not in the market yet a book that tell you how design a buck or boost converter step-by-step, since choose resistor up to choose the control method and op amp. One have to search and buy many books and then develop your oun skills in converters.
Pros:
*Not very expensive
*Good theory and a lot of examples
*Includes all basic guidelines for design SMPS.
Cons:
Only one: some equations are not accurate, they are written in the form: Vsw=~2Vin, it is an approximate equation which do not take into account other values like Vdiode, etc,. You will have to find somewhere else this exact equation, but you still can design from simple to complex power supplies with the equations in this book.
Highly recommended.
Update -- after using the book for a while, I'd probably downgrade to 3 stars if I could -- even with my limited background I found numerous errors.
PCB LAYOUT is also there.
The outline of the text follows:
>>> Chapter 1: The Role of the Power Supply... (in case you hadn't figured this out)
Lots of bromides about power supply design. Cost vs. design-time; Efficiency vs. noise and various other trade-offs. A purview of typical power supply specs and a very brief nod to design software and lab gear. Interesting comments, but not a lot of cohesion.
>>> Chapter 2: An Introduction to the Linear Regulator
A very brief (8 pages) introduction to the linear regulator. The shunt (zener) regulator gets a short paragraph and one figure. The linear regulator is introduced without a lot of supporting analysis (or design equations). Several topologies of linear regulators appear in figures without much elaboration in the text.
>>> Chapter 3: Pulsewidth Modulated Switching Power Supplies
The core chapter--concentrating on the topic the author really wishes to discuss: switching supplies. The author's central dogma is introduced in Fig. 3-6 which is a flowgraph of his design algorithm for PWM switching supplies. Subsequent sections of Chapter 3 plow through each block in the flowgraph--until you get to "Higher Order Functions Design" at which point the isomorphic map between the flowgraph and the text breaks down. After this point, the reader finds himself on an intellectual scavenger hunt in the main text and the appendices to fill in the remaining details.
>>> Chapter 4: Waveshaping Techniques to Improve Switching Power Supply Efficiency
Advanced topics on switching supplies.
>>> Appendix A: Thermal Analysis
A basic electrical engineer's introduction to thermal design (by analogy with Ohm's law).
>>> Appendix B: Feedback Loop Compensation
A lengthy treatment of stability analysis via Bode plot (gain and phase margin) with discussion of compensation techniques. This is a fairly lengthy section and would have nestled nicely into the main text.
>>> Appendix C: Power Factor Correction
A discussion of improved efficiency through power factor correction.
>>> Appendix D: Magnetism and Magnetic Components
Remedial information on magnetic circuits.
>>> Appendix E: Noise Control and EMI
Notes on fighting RFI in switching supplies.
>>> Appendix F: Miscellaneous Information
A few tables on units conversion and some information on wire gauges -- that's all.
My complaints with the text:
1. The book is mis-named. The proper title is "PWM Switching Power Supply Cookbook". Coverage of linear regulators is minimal--despite all the advice in Chapter 1 regarding the proper selection of the power supply technology.
2. The book has errors that should have been caught by a casual proof-read. Consider the singular design example of a linear regulator. When analyzing the rise in junction temperature with a hefty heat sink, the thermal resistance between case and sink is reported as a whopping 65 degrees C per Watt--which would make the overall temperature rise much worse than without the heat sink. After some backwards engineering--one will discover that the resistance should have been reported as 0.65 degrees C/Watt--but the bogus number is dutifully repeated throughout the example.
3. The book is not self consistent. For instance, the term Wa first appears on page 39 with no explanation. Call me dense, but I have to "google" the term on the internet to figure out Wa is 'winding area'.
4. The book is sloppy. For instance, Table A-2 in the appendix has a pair of columns labelled "Minimum" and another pair labelled "Maximum" -- but no verbiage explaining the difference between the like-labelled entries.
5. There are lots of equations in the book--but even the choice of what is included versus excluded defies explanation. In the discussion of boost mode converters there are equations for the inductor current and the energy stored in the magnetic field--but no equation for the output voltage of the converter -- which may be of more than nominal interest to the designer. The equation for discontinuous mode is a little complicated--but the equation for continuous mode is quite elegant (and, evidently AWOL from the book).
6. The material development is most frustrating. For instance, on page 44 we are informed that an 'air gap' is required in unipolar flux drive transformers. No discussion of why. No review of magnetic circuits. No discussion of saturation. No analogy to current limiting resistors in electrical circuits. Just the blanket assertion and then a quick pivot to the equations used to determine the properties of the gap.
I tried hard to like this book. I tried hard to read this book. But the presentation and development of ideas is so sloppy, so convoluted and obtuse--I couldn't get into the spirit of the work. The text reads like a first attempt at a rough draft; I was shocked to see this was a 2nd edition.
If you are already well versed in PWM switching supplies--you may get some benefit from the book or you may enjoy filling in the missing details, correcting the typos, interpolating missing table headings, etc. If you are new to power supply design, I encourage you to look elsewhere for help.