Manufacturing in China Blog

Ferrite toroid transformers provide an often convenient and very effective shape for many wide band, pulse and power transformers and inductors. The continuous magnetic path yields the highest effective permeability and lowest flux leakage of any shape. Basic considerations: The inductance may be calculated from (the units are in CGS system which is used throughout this catalog). Here le and Ae are the effective magnetic path length and cross sectional area of the core, . is the effective permeability of the material, and N is the number of turns. This formula may be used for any shape under all conditions provided...

Overview: Well established company had a product on the market place that been successfull for over 10 years. Product is well recognised by the brand name and a particular look. The disadvantage to the company is that this product experience issues with toroidal transformer failures well above company’s standards. The technical research indicated that new casing have to be designed to overcome thermal issues (overheating). At the same time, market research indicated that change of the appearance of the machine will have negative impact on sales.  As a part of general research company contacted P&A International for quotes for electrical transformer...