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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 Isolation With Standard Optical Isolator ...
https://www.electro-tech-online.com/articles/audio-isolation-with-standard-optical-isolator.739/
Op amp U3 is configured as a current driver for the opto input, generating a current proportional to the voltage input. The opto is operated Class A with about 1 mA DC bias current. Op amp U5 is a buffer/non-inverting amplifier that amplifies the voltage across R2 to convert the opto isolator output current back to a voltage.
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.
Optocoupler or Optoisolator for Audio | Forum for Electronics
https://www.edaboard.com/threads/optocoupler-or-optoisolator-for-audio.58629/
audio opto-isolator Thanks I actually read that. But didnt find a good one yet with a good linearity. Ageing still seems to be an issue.I was wondering if there is any other techniue to acheive audio isolation. Transformer isolation doesnt seem attractive because it takes too much space and may be cost.
OPTO•USB Optical Isolation for USB DACs – AudioWise
https://audiowise-canada.myshopify.com/products/opto-usb
$595.00 Fiber Optic Cable Add to cart OPTO•USB™ is a USB optical isolator that provides RF isolated transmission of high-resolution digital audio from source to a USB DAC. OPTO•USB is better than any inline isolator, exotic USB cable or a lternative USB-over-optical solution* that uses an embedded copper wire in the optical fiber.
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.
Optocoupler Operation - Learn About Electronics
http://www.learnabout-electronics.org/Semiconductors/opto_51.php
Optocouplers/OptoIsolators Optocouplers or opto isolators are used for passing signals between two isolated circuits using different methods, depending mainly on the types of signals being linked. A computer system and its peripheral devices may need a digital signal, such as pulse width modulation signal driving a motor.
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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