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Audio Optocouplers - Learn About Electronics
https://www.learnabout-electronics.org/Semiconductors/opto_53.php
In audio systems isolation between inputs and higher voltage/current equipment is usually provided by audio transformers, however it is also possible to use specialised audio optocouplers such as the IL300, which uses an infra red LED to illuminate one photodiode as an output device and a second photodiode to provide feedback, ensuring improved linearity and wider frequency …
Audio-Optical Isolation Amp - audioXpress
https://audioxpress.com/article/Audio-Optical-Isolation-Amp
Audio-Optical Isolation Amp. August 20 2015, 05:00. When we connect audio components, interference may occur from various power and signal grounds. This circuit enables the full galvanic isolation of sound frequency signals with optical transmission in excellent quality, eliminating interference. This article was originally published in audioXpress October 2004.
Audio Isolation With Standard Optical Isolator ...
https://www.electro-tech-online.com/articles/audio-isolation-with-standard-optical-isolator.739/
Audio Isolation With Standard Optical Isolator 2015-06-10. Audio Isolation With Standard Optical Isolator. 2015-06-10. There are special purpose (and relatively expensive) optical isolators available with separate feedback connections designed for high analog linearity and fidelity but, for non-critical AC applications, a standard opto isolator may be adequate if it …
Amazon.com: optical isolator
https://www.amazon.com/optical-isolator/s?k=optical+isolator
Optocoupler or Optoisolator for Audio | Forum for Electronics
https://www.edaboard.com/threads/optocoupler-or-optoisolator-for-audio.58629/
analog opto isolator Well Kender. It is for high voltage application. In audio what we most care about is linearity, SNR figure of the Optocoupler, THD and how to eliminate ageing.
opto isolator - Audio soft mute using optically isolated ...
https://electronics.stackexchange.com/questions/325777/audio-soft-mute-using-optically-isolated-mosfet
I have an audio signal running through a device that switches it over using a mechanical relay, as a result of the DC offsets and the parasitic capacitance on the output (which also connects to a high Z input) I can hear a 'pop'. ... Browse other questions tagged mosfet opto-isolator switching or ask your own question.
Application Notes—Analog Optical Isolators - …
https://www.perkinelmer.com/CMSResources/Images/44-3429APP_AnalogOpticalIsolatorsAudioApps.pdf
Application Notes—Analog Optical Isolators Switching Mechanical switching of low level audio signals requires the use of switches with precious metal contacts. Sudden changes in signal can cause the speakers to thump and damage may occur if the speaker is underdamped. A simple way to avoid these problems is to use an AOI in place of a mechanical switch.
Audio Optocoupler? - All About Circuits
https://forum.allaboutcircuits.com/threads/audio-optocoupler.102434/
The OP stated it was for a Ham radio so it likely doesn't need to go over 5kHz for voice. But an opto with a phototransistor should be fine for even music audio if it is configured in a follower configuration, since the Miller capacitance that reduces the frequency response in a common-emitter configuration doesn't come into play.
Optocoupler Circuits | Nuts & Volts Magazine
https://www.nutsvolts.com/magazine/article/optocoupler-circuits
Typical isolating optocoupler applications include low-voltage to high-voltage (or vice versa) signal coupling, interfacing of a computer’s output signals to external electronic circuitry or electric motors, etc., and interfacing of ground-referenced low-voltage circuitry to floating high-voltage circuitry driven directly from the main’s AC power lines, etc. Optocouplers can also be …
Analog Optical Isolators VACTROLS®
http://denethor.wlu.ca/pc300/optoisolators/analogoptoisolatorintroduction.pdf
Analog Optical Isolators are used in many different types of circuits and applications. Here is a list of only a few examples of where AOIs have been used. • DC isolators • Feedback elements in automatic gain control circuits • Audio limiting and compression • Noiseless switching • Logic interfacing • Remote gain control for amplifiers
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