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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 …
Audio-Optical Isolation Amp | audioXpress
https://audioxpress.com/article/Audio-Optical-Isolation-Amp
Audio-Optical Isolation Amp August 20 2015, 05:00 This circuit enables the full galvanic isolation of sound frequency signals with optical transmission in excellent quality, eliminating interference. When you connect audio components, interference may occur from various power and signal grounds.
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 even for 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 or Optoisolator for Audio | Forum for Electronics
https://www.edaboard.com/threads/optocoupler-or-optoisolator-for-audio.58629/
opto isolator audio This app note shows the analog optocouples for current sensing, which should work for audio too. https://www.maxim-ic.com/appnotes.cfm/appnote_number/1867 Mar 10, 2006 #6 K kgeorge123 Member level 1 Joined Mar 23, 2005 Messages 34 Helped 8 Reputation 16 Reaction score
How Optocouplers work - opto-isolator solid state relays ...
https://www.youtube.com/watch?v=3AVHqV_xASQ
Optocoupler. In this video we learn how optocouplers work and also look at some simple electron circuits you can make yourself to understand how an optocoupl...
What Is Optocoupler, Opto-coupler Working And Uses ...
https://circuitspedia.com/optocoupler-opto-coupler-opto-isolator-working-and-uses/
Optocoupler/Optoisolator Opto-coupler is an electronic component that is used to conduct the electrical signals from one circuit to another circuit without directly connected between them. In other words, an optocoupler is used to transfer electrical signals between two circuits optically. Here both circuit is electrically isolated from each other.
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 …
Linear Optocoupler Circuit - ElectroSchematics.com
https://www.electroschematics.com/linear-optocoupler-circuit/
This linear optocoupler is built with MOC5010 and can be used to isolate a circuit from main grid, audio interface, in medical electronics and many other applications. Because of its high isolation resistance (10 11 Ω), MOC5010 is used in applications where a circuit is powered directly from main power.
Isolating Circuits From Your Arduino With Optocouplers ...
https://www.instructables.com/Isolating-circuits-from-your-arduino-with-optocoup/
A Optocoupler also called a photocoupler, optical isolator or opto-isolator is a small chip that transfers signals between two isolated circuits using light. A basic optocoupler uses a led and a phototransistor, the brighter the led the more current is allowed to pass through the phototransistor.
Application Notes—Analog Optical Isolators
https://www.perkinelmer.com/CMSResources/Images/44-3429APP_AnalogOpticalIsolatorsAudioApps.pdf
decreased until the audio starts coming through, but sounds chopped up. The chopping occurs because the circuit is too fast on release. The RELEASE is increased until the audio is smoothed out and sounds normal. Setting of the two controls needs to be made carefully. A threshold set too high cuts off the quieter sounds, while a setting which
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