Author Topic: Cheapest fiber optic option for pwm control  (Read 1229 times)

Offline yourboi

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Cheapest fiber optic option for pwm control
« on: November 16, 2023, 12:55:43 AM »
Hello I am currently a new user here. I Am wondering about fiber optics and the process of purchasing parts out there for them or a guide for them. I am assuming it works similar to wires just with an optocoupler on the receiver.

 If fiber optics turns out to be too expensive at the moment I will attempt an Ir remote with a frequency blocking feature on the ir remote because that sounds pretty easy and cheap to implement for a temporary solution with the ir sensors I have laying around spare microcontrollers and potentiometers.

Offline Late

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Re: Cheapest fiber optic option for pwm control
« Reply #1 on: November 16, 2023, 09:58:26 AM »
I am assuming it works similar to wires just with an optocoupler on the receiver.
That is not the best idea. The long wires will act as antennas and will pick up interference which will mess with the on times.

If you want a super cheap fiberoptic transmitter and receiver look for toslink. They are cheap and can be found anywhere. also salvaged. The fiberoptic cable is cheap too
Hi, my name is Patriks and I'm from Latvia. I'm interesting electronics, especially power electronics and high voltage. I also make content on YouTube showing my journey in the awesome world of High Voltage.

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Offline yourboi

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Re: Cheapest fiber optic option for pwm control
« Reply #2 on: November 16, 2023, 05:44:53 PM »
Quote
That is not the best idea. The long wires will act as antennas and will pick up interference which will mess with the on times.

I was phasing the way the fiber optics would work like with simple Boolean logic to control a phototransistor on the side of the receiver. simple stuff really. I'm imagining

Quote
If you want a super cheap fiberoptic transmitter and receiver look for toslink. They are cheap and can be found anywhere. also salvaged.

your saying all those old tv players with the fiber optic input I see at the thrift store can be scrapped easily and cheaper than fiber optics on the internet? interesting. toslink receivers and transmitters seem to be a 30$ investment on mouser which I can spend but I scrap a lot of e-waste. So that may be the better option if I'm reading you correctly.

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Re: Cheapest fiber optic option for pwm control
« Reply #2 on: November 16, 2023, 05:44:53 PM »

 


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