Get our free email newsletter

common mode

Cores for Common Mode Chokes

Whether you're tackling EMI issues or enhancing the performance of your power supply, Fair-Rite has got you covered with our cutting-edge technology.

Difference Amplifier: Common Mode and Differential Mode Voltages

This column describes the operation of an ideal difference amplifier. It is shown that an ideal difference amplifier (with no resistance mismatches) eliminates the common mode portion of the input voltage and amplifies only the differential mode portion of the input voltage.

Common-Mode Current Creation and Suppression

This article discusses the creation of a common-mode current in a typical circuit and explains the effectiveness of a common-mode choke on differential-mode and common-mode currents.

Experiments In EMC: How Common Mode Currents Are Created

1307 F2 cover“I’ve all ready read the books on EMC and visited a lot of home pages... But all these references did not mention anything about the physical phenomenon that causes common mode currents... Are common mode emissions inherent in any physical system? Can I model them?” Overheard on the ‘Net

It’s by no means a trivial question. And, in spite of decades of hand waving by authors and consultants, the principal mechanism by which common mode currents are created in digital devices was not well understood until the decade of the 90s. In this article, we’ll explore the physics behind the creation of common mode currents, and perform some experiments to verify our understanding.

Power Line Common-mode Conducted EMI Emission

The myth: Conducted EMI emission profiles are always attributable to conducted currents propagating from...
- From Our Sponsors -

Common Mode Filtering Performances of Planar EBG Structures

Please view the Digital Edition to read the article (click here).

Digital Sponsors

Become a Sponsor

Discover new products, review technical whitepapers, read the latest compliance news, trending engineering news, and weekly recall alerts.

Get our email updates

What's New

- From Our Sponsors -

Sign up for the In Compliance Email Newsletter

Discover new products, review technical whitepapers, read the latest compliance news, trending engineering news, and weekly recall alerts.