Overview: System designers often look
at switching buck converters as strange and problematic devices and for
this reason end up designing in lower efficiency alternatives. However,
the characteristics of modern buck converters, including the set of features
and ease of component selection, makes the design process straightforward
and rapid.
This allows designers to easily take advantage of the desirable high
efficiency characteristics of switching regulators in portable applications.
In this presentation we will give the listener the background necessary
to design in magnetic buck converters in portable applications including:
- Magnetic buck converters fundamentals
- Review of common device specifications
- Modes of operation
We will then take the listener through all aspects of the buck switcher
design process including:
- How to select components
- Stability analysis and choosing the correct compensation components
- Losses in buck converters and efficiency measurement techniques
- Line and load transient measurement techniques
- Sources of noise in switching converters
- Proper pcb layout techniques
Length: 60 minutes
Published Date: January 2003
Topics covered in this online seminar include:
- Basics of buck converters
- Design and component selection
- Evaluation of magnetic buck converters
- Applications in portable power systems and cellular phones
- National’s family of magnetic buck converters
- Efficiency considerations
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Presenters:
Frank De Stasi is a Principal Design Engineer with
National Semiconductor’s Portable Power Systems Group in Santa
Clara, California. |
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Mathew Jacob is a Staff Applications Engineer with National
Semiconductor’s Portable Power Systems Group in Santa Clara,
California. |
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Download:
Presentation
(pdf 7.5MB)
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