Magnetics Business & Technology - Summer 2018 - 23

RESEARCH & DEVELOPMENT
The total volume can then save over 54% and flat wire common
mode choke comes with 1.2x the power density of the traditional
T-core. From the electrical result, with the same level of inductance, flat wire common mode choke offers lower DCR and higher
current level. The impedance curves on Fig. 15 also show the flat
wire common mode choke offers higher impedance with higher
frequency.

REFERENCES
[1] Mat Dirjish. What's The Difference Between Acoustical And
Electrical Noise In Components? Oct 03, 2012. http://www.electronicdesign.com/electromechanical/what-s-difference-betweenacoustical-and-electrical-noise-components
[2] Rafik Stepanian. Mitigating EMI Problems and Filter Selection
Feb. 2017
[3] Review of R, X and Z Chapter 5 - Reactance And Impedance
-R, L, And C
https://www.allaboutcircuits.com/textbook/alternating-current/
chpt-5/review-of-r-x-and-z/
[4] Impedance
http://whatis.techtarget.com/definition/impedance

Table 5 T-Core w/Round Wire vs Rectangle Core w/Flat wire
VI.

CONCLUSION

In conclusion, the impedance becomes much more important in
the common mode choke design at higher frequency. By looking
at a number of different winding techniques and flat wire vs round
wire comparisons, the flat wire with rectangular core body common mode choke shows its best result at the following:
I. Fully automatic high precision winding machines insure competitive costs.
II. The singles-layer winding design lowers the parasitic component and provides better performance at higher frequencies.
III. The lower distributed capacitance means a higher performance
at higher frequencies.
IV. The lower DCR means better thermal performance.
V. The higher power density results in up to 50% space saving.
VI. The higher reliability results in extended product life time.

www.MagneticsMag.com

Summer 2018 * Magnetics Business & Technology

23


http://www.electronicdesign.com/electromechanical/what-s-difference-between-acoustical-and-electrical-noise-components http://www.electronicdesign.com/electromechanical/what-s-difference-between-acoustical-and-electrical-noise-components http://www.electronicdesign.com/electromechanical/what-s-difference-between-acoustical-and-electrical-noise-components https://www.allaboutcircuits.com/textbook/alternating-current/chpt-5/review-of-r-x-and-z/ https://www.allaboutcircuits.com/textbook/alternating-current/chpt-5/review-of-r-x-and-z/ http://whatis.techtarget.com/defi%20nition/impedance http://www.itg-electronics.com http://www.MagneticsMag.com

Table of Contents for the Digital Edition of Magnetics Business & Technology - Summer 2018

Magnetics Business & Technology - Summer 2018
Contents
Editor’s Choice
Magnetic Nanoparticles Leap from Lab Bench to Breast Cancer Clinical Trials
Safran, a Major Player in Plasma Propulsion, Finds Booming Market for its Hall Eff ect Thrusters
NASA Develops Hall-Eff ect Electric Propulsion to Thrust Exploration on into Deep Space
Airbus-built SES-12 Dual-mission Satellite Successfully Launched
Research & Development
Case Study
Product News
Industry News
Marketplace/ Advertising Index
Spontaneous Thoughts: Dysprosium 2.0
Magnetics Business & Technology - Summer 2018 - Magnetics Business & Technology - Summer 2018
Magnetics Business & Technology - Summer 2018 - Cover2
Magnetics Business & Technology - Summer 2018 - Contents
Magnetics Business & Technology - Summer 2018 - Editor’s Choice
Magnetics Business & Technology - Summer 2018 - 5
Magnetics Business & Technology - Summer 2018 - Magnetic Nanoparticles Leap from Lab Bench to Breast Cancer Clinical Trials
Magnetics Business & Technology - Summer 2018 - 7
Magnetics Business & Technology - Summer 2018 - Safran, a Major Player in Plasma Propulsion, Finds Booming Market for its Hall Eff ect Thrusters
Magnetics Business & Technology - Summer 2018 - 9
Magnetics Business & Technology - Summer 2018 - NASA Develops Hall-Eff ect Electric Propulsion to Thrust Exploration on into Deep Space
Magnetics Business & Technology - Summer 2018 - 11
Magnetics Business & Technology - Summer 2018 - Airbus-built SES-12 Dual-mission Satellite Successfully Launched
Magnetics Business & Technology - Summer 2018 - 13
Magnetics Business & Technology - Summer 2018 - Research & Development
Magnetics Business & Technology - Summer 2018 - 15
Magnetics Business & Technology - Summer 2018 - 16
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Magnetics Business & Technology - Summer 2018 - 23
Magnetics Business & Technology - Summer 2018 - Case Study
Magnetics Business & Technology - Summer 2018 - 25
Magnetics Business & Technology - Summer 2018 - 26
Magnetics Business & Technology - Summer 2018 - 27
Magnetics Business & Technology - Summer 2018 - Product News
Magnetics Business & Technology - Summer 2018 - 29
Magnetics Business & Technology - Summer 2018 - Industry News
Magnetics Business & Technology - Summer 2018 - 31
Magnetics Business & Technology - Summer 2018 - Marketplace/ Advertising Index
Magnetics Business & Technology - Summer 2018 - 33
Magnetics Business & Technology - Summer 2018 - Spontaneous Thoughts: Dysprosium 2.0
Magnetics Business & Technology - Summer 2018 - Cover3
Magnetics Business & Technology - Summer 2018 - Cover4
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