I am afraid that I have been a little remiss, because a few weeks ago the folks at Lattice Semiconductor sent me a really good book on power supply management and control, but I never got around to posting the review (take me outside and spank me now!).
The reason I am now stirred into action is that – in addition to a PDF copy that you can download for FREE (see below) – they have just officially released a hard-copy version of this “Power 2 You” book (I have a rare advanced copy … that’s how special I am [grin]).
This “Power 2 You” book provides designers with 150 pages of technical details and design considerations for implementing common circuit board power management functions. The author is Srirama (“Shyam”) Chandra, a widely published author and recognized authority on power management.
Power management challenges
Modern circuit boards use a plethora of chips – such as CPUs, FPGAs, and ASICs – to perform the primary processing functions. These chips require multiple board-mounted supplies that should be turned on in a specific sequence, monitored for faults, and trimmed for voltage accuracy. In addition, the input power to the board may require redundant power management and hot-swap capabilities for plug-in boards. All of the functions that control the various power rails comprise board power management.
Designers have traditionally implemented each of these functions using a unique set of single function ICs along with a bunch of associated passive components. To select these components, a designer must refer to multiple application notes and datasheets from various vendors. Given the complexity of modern circuit boards, this approach to power management has become unwieldy and time consuming.
Welcome to the pleasure dome (my office). Sorry about Power 2 You
the mess; I must have a clean-up before Christmas
(but I’m not saying which one [grin])
“Power 2 You” provides in-depth discussions of the technical details and design challenges for all common power management functions, and examines programmable design solutions that can be modified using software. Separate chapters are devoted to:
- Reset Generators and Supervisors
- Power Supply Sequencing
- Hot-swap Controllers
- Power Supply ORing Controllers
- Power Feed Controllers
- Margining and Trimming
Of course the book does talk about implementing all of these functions in the context of power management devices from Lattice … but as far as I’m concerned that is “fair do’s”
as the Australians would say. The bottom line is that this is a jolly useful book that I will keep on hand in my office.Hard-copy and eBook editions available
“Power 2 You” is currently available for free download as an eBook or for ordering as a hard-copy edition. The eBook includes hyperlinks that facilitate cross referencing of topics. The book is currently available only in English, but I’m informed that additional language versions are being prepared and will be announced when they become available.Click Here
to download the eBook version for free; Click Here
to order the hard-copy version.
FYI, I'm not sure how much the hard-copy costs, but I just bounced over to take a look (www.latticesemi.com/p2y
) and I found a note that says "Be one of the first 500 people to register and request a hard copy of the Power 2 You Design Guide, and we will send it to you for free."
Wow -- that's a really good deal – I suggest you race over there and "get while the getting is good" as it were!