Overview: Magnetics is arguably the
holy grail of switching power conversion. We all know that mastering it
can lead to far better optimized converters, though most engineers understandably
feel rather uncomfortable with it. This presentation should be looked at
being the first step in rediscovering the joy of magnetics. Much of the
underlying simplicity can be regained in terms of the ‘z-factor’,
introduced here for the first time. This radical approach actually helps
simplify the equations, and provide a much deeper and intuitive insight
into this challenging area. Engineers working in the field of power conversion,
and product definition thereof. The seminar will start at the very basics,
so there are no pre-requisites other than a desire to learn something about
magnetics.
Length: 60 minutes
Published Date: March 2004
Topics covered in this online seminar include:
- Basic Waveform Analysis
- The importance of Current Ripple ratio
- Voltseconds and Duty Cycle
- Basic Magnetic Definitions
- Magnetomotive force
- The z-factor
- Energy Storage Considerations
- Air Gap analysis
- Off-the Shelf Inductor Selection
- Core Losses
- Mathcad file for calculating Core Loss coefficients
Presenter: Sanjaya Maniktala
has over 15 years industry experience, having worked professionally in India,
Singapore, Germany and the US for several well-known power supply and semiconductor
companies like Artesyn and Siemens. He received his Masters in Physics from
the Indian Institute of Technology at Bombay, and from Northwestern University,
Evanston in Illinois. He is currently Principal Applications Engineer with
National’s Power Management Group at Santa Clara. |
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