Magnetics in the Mix

Chang Sung Corp, the leader in powder core technology has expanded it’s toroid line to larger sizes.  For Alternative Energy the preferred material for these toroids is the CSC MegaFlux material. 

As a material review, Chang Sung was the first powder core company to introduce a Silicon-Steel powder for, essentially replacing Silicon-steel laminations in transformers.  The advantage of the MegaFlux is lower core losses and a higher operating frequency.  The MegaFlux can also be pressed is varying shapes, the most common are the Toroid, EE core, and Blocks.

Chang Sung has recently introduced the toroids in the sizes from four (4) inch to six (6) inch.  These toroids are summarized in the following table.

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Magnetec has announced a tape wound core for current transformers capable of handling a DC component (IEC 1036). These tape wound cores are made from Nanocrystalline material to Magnetec’s patented annealing process. These special cores for current transformer are low permeability cores which has advantages such as:

• Small Amplitude error which is required for Electronic Watt-meter applications
• Low Losses
• High linearity
• Low Temperature Drift
• High DC current capability

Standard cores are shown in the table below. However cores can be design to match most specifications.

TDK-EPC Corporation was established in Japan on October 1, 2009, as a result of carving out one of the core business activities of TDK Corporation, namely the passive electronic components business. This sector of the market is undergoing drastic changes, and the ability to respond speedily to customer demands is crucial to our success. The aim in forming the new structure is to further strengthen our market position and thereby contribute to the growth of the TDK Group. TDK Corporation will be the sole shareholder of TDK-EPC Corporation. TDK-EPC was incorporated as a technology, manufacturing, marketing and sales company active in the electronic components, modules and systems business. The major German electronic components manufacturer EPCOS AG and its subsidiaries (subsequently referred to as EPCOS) have been brought aboard and will provide a significant boost in competitiveness, both in terms of product range as well as in market presence. While constantly assessing the changing needs of the industry, we will be able to provide technology, products, and comprehensive solutions of outstanding value. Relying on a worldwide R&D, manufacturing and sales network, TDK-EPC Corporation is expected to act as a growth engine for the entire TDK Group. The new company is poised to assume the role of global leader in the field of electronic components, modules and systems.

Upon the foundation of TDK-EPC Corporation, the following corporate logo mark has been established.

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TDK Corporation has announced the intention to discontinue the PC50 power material. The factory is replacing the PC50 material with PC95 material on all quotations. Therefore it is imperative that we understand the differences between the PC50 and PC95.

PC50 History – The PC50 material was announced in 1988 after years of developing new processes for powder preparation and Sintering. The PC50 material was the first ferrite material design for the operating frequency of 500 KHz – 1MHz. A review of the power material can be found in the paper entitled Ferrite power material for high-frequency applications by Tadashi Mitsui and Gary Van Schaick. This document can be found at:

http://www.mhw-intl.com/assets/TDK/Ferrite%20Material%20for%20HF%20Application.pdf

A couple of key points can be found in this paper.

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