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What is Coil Whine & How to Fix it - Clever Creations
https://clevercreations.org/what-is-coil-whine-how-to-fix/#:~:text=When%20a%20current%20passes%20through%20an%20inductor%20%28an,at%20frequencies%20that%20lie%20outside%20our%20hearing%20range.
Inductors for audio line noise suppression | Inductors ...
https://www.murata.com/en-us/products/inductor/audio
Inductors for audio line noise suppression Inductors for audio line noise suppression The LQW_CA Series of inductors for audio line noise suppression were developed as filters that are able to balance noise suppression and audio quality. Overview Product Search Design Development Library Support Audio line noise suppression Product Search
Why is there audible noise in the inductor of a boost ...
https://electronics.stackexchange.com/questions/286576/why-is-there-audible-noise-in-the-inductor-of-a-boost-converter
This magnetic field causes a small attraction/repulsion action in the coils of the inductor, which manifests itself as a vibration, aka sound. You may have noticed that some CFLs and LED lightbulbs have a high pitch whine, and many mains transformers have a low hum at around 50/60Hz for the same reason. Is that noise dangerous for circuit
Measures Against Acoustic Noise in Power Inductors ...
https://product.tdk.com/en/techlibrary/solutionguide/acoustic-noise.html
Vibrations that occur in the main bodies of power inductors generate acoustic noise through currents of frequencies in the audible range flowing in. Below are causes of the vibrations and the causes of amplified sounds and noises. Causes of vibrations (1) Magnetostriction (magnetic strain) of the magnetic core
UCC28063A: UCC28063A Inductor audio noise - Power ...
https://e2e.ti.com/support/power-management-group/power-management/f/power-management-forum/839266/ucc28063a-ucc28063a-inductor-audio-noise
If the audible noise is low frequency and sounds like the humming of transmission lines this is due to low frequency power conversion. The PFC makes the input current track the line. The inductor currents peak will vary at 2X the line frequency and will produce a low frequency hum.
Reduce Audible Noise from Inductor - Tech Tips ...
https://forum.digikey.com/t/reduce-audible-noise-from-inductor/564
#1 When looking at inductor circuit it is common that you may hear an audible noise. It is often hard to trace this noise and identify where it is coming from. When there is magnetic energy stored in the inductor air-gap, it can vibrate and generate noise. This noise will come from the inductor air-gap materials and magnetic circuit geometry.
Inductors in EMC - Part 3: Common-mode noise filtering
https://www.academyofemc.com/post/inductors-in-emc-part-3-common-mode-noise-filtering
Inductors in EMC - Part 3: Common-mode noise filtering. Reto Keller. Nov 6, 2020. 5 min read.
What is Coil Whine & How to Fix it - Clever Creations
https://clevercreations.org/what-is-coil-whine-how-to-fix/
Simply put, coil whine is a high-pitched noise caused by vibrations in electromagnetic coils. When a current passes through an inductor (an electronic component), it causes its copper wire to vibrate against its core with a high, audible frequency. This annoying sound is what we refer to as coil whine.
how to remove noise generated in the inductor of a buck ...
https://www.eeweb.com/forums/topic/how-to-remove-noise-generated-in-the-inductor-of-a-buck-regulator/
If an inductor is giving off audible noise there is something mechanically loose. Exactly what will depend on your inductor type, its physical construction design. Someone mentioned laminations which is the most common cause of hum. These rectangular style inductors are not normally used in switching PSU’s. Do you have the correct component?
What makes Inductor EQs sound different? - …
https://gearspace.com/board/geekzone/784895-what-makes-inductor-eqs-sound-different.html
It seems like most of the basic audio filter circuit building blocks can be realized with any two of the three of: Resistors, Capacitors, Inductors -- and Inductors tend to be the most expensive and noise-prone. Inductors, of course, are coming back into fashion. Just what is it, though, that makes them sound different?
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