Resume of Coil Winding Specialist Technical Staffs

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Transformers, Inductors, Chokes and other magnetic products design consulting

Resume of CWS Coil Winding Specialist's Technical Staff

K.Kit Sum, Senior Member, IEEE

Power Electronics Consultant for over 30 years in the designs of switch mode power supplies. Author of one book and editor of two books in power electronics.
Holder of U.S. Letters of Patent No. 6,141,230 " Valley Fill Power Factor Correction Circuit"
Authored over 30 articles on power electronics. Please click links above to see details.
Currently also conduct a 3-day lecture Switch Mode Power Conversion. For more details on these classes, please go to http://home.earthlink.net/~kkitsum or contact us or e-mail us at kkitsum@earthlink.net
James Lau

Over 10 years of experiences in design of magnetic products for switch mode power conversions, inductors, chokes and coils. James holds the following U.S. Letter Patents:
Patent no: 6,329,726. Issued Dec 11, 2001
Patent no. 6,459,172. Issued Oct 1. 2002
Patent no: 6,498, 546. Issued Dec 24, 2002
Patent no: 6,525, 435. Issued Feb 25, 2003
Patent no: 6,607, 413. Issued Aug 19, 2003
Others pending.
Tracy Markham

Over 20 years experience in designs using ferrite cores for RFI/EMI suppression, RF filters, and Tuned Circuits. Over 15 years practical experience with Transmission Line Transformers and other matching methods.
Bill Stevenson

Over 20 years in designing transformers and other magnetic products. Formerly working for defence companies in the electro-magnetic fields.
Ke Tran

Over 12 years in mechanical designs of transformers, inductors, chokes and coils. Expert at designs using Solid Works and Autocads.
Sun Ming

Over 10 years in switch mode power supply designs. Expert with transformers using PI chips.

We also have several engineers with Phd in power electronics with at least 10 years of experiences in designs of transformers, inductors, chokes, coils, and switch mode power supplies.

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