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EMI

Power Electronics Engineering Design Services

Inductor and Transformer Design
Electronic Ballast: Flourescent Lamp and LED
Automotive Power Supplies: Engine and Body Modules
Single Phase Power Factor Correction Solutions

 

Solving EMI for Low Wattage Universal Input Power Supplies (PDF) This paper presents methods and results to solve line conducted electromagnetic interference (EMI) for low wattage universal ac line input switching power supplies. The EMI noise reduction is shown for each technique. Techniques include the use of a common mode input coupled inductor, and X ac line capacitor, hot-to-cold ground Y capacitor, schottky rectifiers, and the use of ferrite beads.

Power Electronics Technology Exhibition & Conference 30 October 2002 (PDF) Slide support for "Solving EMI for Low Voltage Universal Input Power Supplies":
- Cookbook to help design universal input flybackswitching power supplies.
- Help understand the various techniques used on their effects of reducing EMI.
- Help reduce the engineering cycle time and improve the time to market of products.
- Educational tool to help novice switching power supplies engineers solve a sometimes black magic item

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