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Selecting the right inductor for ultra-low distortion ...
https://e2e.ti.com/blogs_/b/analogwire/posts/inductor-linearity-for-ultra-low-distortion-class-d-audio-amplifiers#:~:text=It%20is%20a%20175W%20Class-D%20audio%20amplifier%20with,inductor%20linearity%20is%20defined%20as%20inductance%20vs.%20current.
Selecting the right inductor for ultra-low distortion ...
https://e2e.ti.com/blogs_/b/analogwire/posts/inductor-linearity-for-ultra-low-distortion-class-d-audio-amplifiers
It is a 175W Class-D audio amplifier with total harmonic distortion and noise (THD +N) capable of approaching 0.001% in the mid power band. For the TPA3251D2, inductor linearity becomes critical to extract the highest level audio …
ferrite core inductor distortion measurements? | diyAudio
https://www.diyaudio.com/community/threads/ferrite-core-inductor-distortion-measurements.196604/
Pardon me for interjecting without having direct experience, but here is a way for measuring inductor distortion. I think this will give a more direct visual indication than the Klipsch IM plots. I haven't done this but I'm pretty sure it would work. See attached diagram. You need to drive the inductor with a power amplifier and an LF oscillator.
US5802182A - Audio process distortion - Google Patents
https://patents.google.com/patent/US5802182
The audio process is a signal path having a plurality of filters connected or including distortion means. The prime example of this phenomenon surrounds inductances such as found in magnetic tape recorders, spring reverberators, and transformers. The inductors require a pre-emphasis filter to produce a constant current. Secondarily there are the complementary filters …
Inductors for Class-D Audio Amplifiers
https://innovation-destination.com/wp-content/uploads/2018/07/doc1404_classd.pdf
Dual Inductors for Ultra-low Distortion Class-D Amplifiers Inductors for Class-D Audio Amplifiers For high-power Class-D amplifiers (>50 Watts), selecting the right inductor for the output LC filter plays a critical role in improving the effi-ciency and overall sound quality of the system. Product Overview: UA8013-AL / UA8014-AL / RA7231-AL ...
This Thing We Have About Hysteresis Distortion - Purifi Audio
https://purifi-audio.com/2020/04/28/dist/
This Thing We Have About Hysteresis Distortion. ... coil that has a magnetic core. For instance the iron yoke in a speaker driver. It sits inside the voice coil. Or cored inductors in crossover filters. Or the ferrite inductor in a class D amplifier. The cause is the ferromagnetic material that’s added to inductors to bring inductance up to ...
Audio Grade Coils and Inductors | ERSE
https://www.erseaudio.com/Products/Coils
ERSE Inductors: ERSE manufactures the finest audio coils in the world today! ... Imagine a non distorted music note leaves your amplifier at the speed of electrons. It travels about 10 feet down your high quality speaker cable and to your speaker where it then meets about 300 feet of low purity copper coil wire. Your musical note has just been ...
Purifi Audio Unveils Investigation About Hysteresis Distortion
https://audioxpress.com/news/purifi-audio-unveils-investigation-about-hysteresis-distortion/
Purifi Audio, the Danish company founded by Bruno Putzeys, Lars Risbo, and Peter Lyngdorf together with a remarkable engineering team, promises Class D amplifiers with record-breaking performance (as well as speakers).Now, Bruno Putzeys made available a detailed report of his investigation on hysteresis distortion, which motivated the development of the …
Audio Distortion Meter Circuit with Diagram
https://www.circuitstoday.com/audio-distortion-meter
Description. H ere is a simple 1KHz audio distortion meter that can measure the Total Harmonic Distortion (THD) on any load at any output power. Here you have the option to select 2,4,8 or 16 Ohm loads. The circuit works by filtering the 1 kHz fundamental signal using a notch filter comprising of L1, C2, C1, R1.
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