Videos & Presentations
Choosing a ferrite for use as a power material is easy right? Pick the lowest loss material at your operating conditions and you’re off to the races. Unfortunately, it isn’t always that simple. In this video we take a look (simplistically) at how adding an air gap can affect our core material selection. Specifically, we are evaluating EQ25 core sets in Fair-Rite’s 67, 80, and 79 materials. All core scenarios have been constrained to roughly the same inductance factor for this testing.
Test Equipment Used: Keysight E4990A Impedance Analyzer, Clarke Hess CH2335A-01 Wideband Power Analyzer
Fair-Rite Products Wallkill NY Machine Shop as The people making sure I didn’t lose a finger gapping the cores!
Honorable Mention: Mike Arasim as The guy in front of the camera.
Follow along with Mike Arasim, Product Manager for Power and Inductive Applications at Fair-Rite Products as he walks through the process of identifying the material of an unknown ferrite rod using some simple test equipment and Fair-Rite’s new Rod Permeability calculator tool.
Test equipment used: Keysight 1733C LCR Meter. Mitutoyo Absolute Digimatic 6” Caliper. 24AWG solid enamel coated magnet wire.
Follow along with Bruce Sparrow – N2KTV, Product Manager for Suppression Applications at Fair-Rite Products as he demonstrates how to measure balun performance using the MFJ 225 two port vector network analyzer.
For more information on what Fair-Rite Products has to offer check out: www.fair-rite.com
Do you have a ferrite core, but don’t know what it is? Follow along with Mike Arasim, Product Manager for Power and Inductive Applications at Fair-Rite Products as he identifies two unknown Fair-Rite EMI suppression beads using basic, inexpensive, readily available equipment in a very not temperature controlled environment.
Test equipment used: Keysight 1733C LCR Meter. Flir DM93 Digital Multimeter. Mitutoyo Absolute Digimatic 6” Caliper. 10 turns of 26awg solid wire.
Starring Fair-Rite P/N 2673002402 as Sample #1
Fair-Rite P/N 2643002402 as Sample #2
In this short video we show how to make a 1:1 balun using a Fair-Rite Products Toroid 2631803802 and easy-to-source parts. Watch Bruce Sparrow- N2KTV, Fair-Rite Products Product Manager for Suppression products, as he completes this project. Comment what other “How To” videos you would like to see Fair-Rite Products create! LIKE AND SUBSCRIBE!
Fair-Rite Products Corp., Your Signal Solution®, In this video we give a brief example of the effect wire length has on rated impedance values of a ferrite EMI suppression device. When characterizing a core, the wire length should be kept to a minimum to give a more accurate representation of the of the actual impedance that will be added to your circuit. For more information check out our website at https://www.fair-rite.com/ Comment below if there are any topics you would like to see covered in future videos. Thanks for watching!
Click HERE to check out the paper on the Effect on Lead Length on Ferrite Impedance:
Test equipment used: Keysight (formerly Agilent) E4991A RF impedance analyzer, 16092A test fixture. Osc level = 100mV. Log swept stimulus 1MHz-1GHz, 201 discrete points. Test leads all 26awg solid wire.
Core being tested: Fair-Rite Products shield bead P/N 2643000801: https://www.fair-rite.com/product/emi…
In a developing market where miniaturization of designs has become critical, operating frequencies of magnetics have been increasing in order to minimize their size. As a result, engineers have a lot to consider when selecting magnetic components for their designs. Join us with John Lynch, Director of Engineering at Fair-Rite, as he discusses the role of ferrites in power supplies. John’s presentation will address the advantages of ferrites in power supply designs, the important parameters of ferrite materials, the impact of these parameters on performance, guidelines to select your ferrite material, and optimizing configuration based on design limitations.
Fair-Rite Products Corp., Your Signal Solution®, introduces a roadmap of their 67, 79, and recently developed 80 materials. Be the first to join John Lynch, Director of Engineering at Fair-Rite, as he leads an informative presentation on the capabilities of the materials while also discussing the effects of size on their overall performance. The recently developed 80 material, in particular, is showcased in the video as the solution to the gap the 67 and 79 materials had previously left in frequency coverage. Fair-Rite is excited to share with you how these three products can empower your design. Please watch our video to learn more.
Ferrites are ceramic components that can be used to suppress electromagnetic interference (EMI) in certain applications. This presentation will discuss the basic properties of solid round ferrite cores, the impact an air-gap can have on the performance of these cores, and special considerations. In particular, this discussion focuses on the use of high permeability materials, such as Fair-Rite’s 75, in low-frequency suppression applications since its permeability is relatively high compared to other soft ferrites used for this purpose, making the effect of an air-gap much greater.
This presentation was given at APEC 2016 on Low Loss 67 Material by our Vice President Rachael Parker. Click on the presentation to view.
Would you like the raw data used for the graphs in the presentation?
Click here to download power loss data:
This video discusses the basics of ferrite beads and their uses for basic filtering applications. It discusses and demonstrates how ferrites act as resistors at high frequencies and how this is used for EMI/RFI Suppression, improved power supply filtering, parasitic oscillation suppression, and others. The affect of the frequency dependent resistive characteristic of the ferrite beads is demonstrated by showing its effect on a swept RF signal, its effect on the rise/fall time of a digital signal, and its effectiveness of eliminating parasitic oscillation.