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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
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 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 …
Amazon.com: usb optical isolator
https://www.amazon.com/usb-optical-isolator/s?k=usb+optical+isolator
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.
operational amplifier - Using an Opto-Isolator to change ...
https://electronics.stackexchange.com/questions/87017/using-an-opto-isolator-to-change-an-op-amps-amplification
Here is a simplification of the approach in the question, that removes any transistors / FETs from the feedback path, and provides an analog (continuous) range of gains, while retaining the opto-isolation - Use an LDR optocoupler as used in some classic and DIY audio amplifiers:
Application Notes—Analog Optical Isolators - …
https://www.perkinelmer.com/CMSResources/Images/44-3429APP_AnalogOpticalIsolatorsAudioApps.pdf
an audio signal containing spoken dialog. Initially, the THRESHOLD adjustment is set to the maximum and the RELEASE is set to the minimum. The program is turned on and the THRESHOLD is decreased until the audio starts coming through, but sounds chopped up. The chopping occurs because the circuit is too fast on release. The
Audio Optocoupler? - All About Circuits
https://forum.allaboutcircuits.com/threads/audio-optocoupler.102434/
Find an optocoupler based on a photodiode instead of the one you have that is based on a photoresistor. If you are in a pinch, you can use one based on phototransistor but that will only be good enough for voice audio - not violins or piccolos.
What Is Optocoupler, Opto-coupler Working And Uses ...
https://circuitspedia.com/optocoupler-opto-coupler-opto-isolator-working-and-uses/
Opto-coupler is also called photocoupler, opto-isolator or optical isolator. Optocoupler is mainly used to prevent an electrical collision by the isolate the circuit. This is also used to eliminate unwanted noises. working principle of Optocoupler
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 …
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