Application Notes

This section contains useful Application Notes and "How To Use" help to assist engineers better understand various applications of Power Inductors, Common Mode Chokes, Current Transformers, Power Transformers and Ferrites for EMI suppression etc.

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Application Notes: CREE KIT-CRD-3DD12P Buck-Boost Evaluation Kit using CWS-1SN-12877 
Application notes on CREE's Buck-boost Evaluation Kits using CWS's custom toroidal inductor, CWS-1SN-12877

Application Notes: Automotive Crossover Filters 
A short summary on Automotive Crossover Filters offered by CWS

Application Notes: How to Select and Use Ferrite/Nanocrystalline Common Mode Chokes 
A short summary on how to choose the most suitable common mode choke from thousands of offerings on the market.

Applications Notes: 50/60Hz CT-Series Current Transformers
A short summary on the basics of current transformers and how to use Coil Winding Specialist Inc's CT Series Current Transformers.

How to Choose Iron Powder, Sendust, Koolmu, High Flux and MPP Cores as output inductor and chokes 
A short summary on how to choose what types of powder cores with distributed air gaps to use when designing power inductors and chokes.

Understanding Properties of Magnetics, Inductors and Transformers
A short summary on the basic properties of magnetics and how inductor and transformer work. 
 

Reference Designs of Switch Mode Power Supplies using TOPSWITCH and TINYSWITCH
This section shows 8 different designs using Power Integration's TOPSWITCH and TINYSWITCH. These designs consist of a 1.3W ( 7.5Vo), 1.5W (9.0Vo), 3.6W (5.2Vo), 5W ( 5.0Vo), 15W (7.5Vo), 30W (15Vo), 13.55Vo and a 5 outputs circuits.

Advances in Power Sources
This article, written by K Kit Sum, gives a historical briefs on the advances in power supplies. It lists hundreds of references and sources for anyone who needed more information in the field of power supplies. A must read for students doing research on power supplies.

Understanding EMC Standards and Filter Specifications
This describes the EMC regulations and standards mainly for products sold to European countries as the EMC rules are strictly enforced in Europe.

Types of Surface Mount Inductors
Describes the various types of surface mount inductors - shielded from RFI/EMc radiations, unshielded types for lower cost, high current types, etc.

Types of Tape Wound Toroidal Cores
Describes types of tape wound cores and lamination transformers

What is a Transmission Line Transformer
Transmission line transformers are high frequency impedance matching devices over a wide freqeuncy range - typically 1 to 50 Mhz range at power rating of up to 10 kW. Designed by Dr. Jerry Sevick.

Cross referencing and multi-sources

Flat Transformers - Application Notes
Examples of using the flat matrix transformers

Selected Articles on Power Electronics by our technical staffs