IR Emitter / IR Blaster

Discussion in 'General Electronics Chat' started by Scott Burns, Apr 9, 2015.

  1. Scott Burns

    Thread Starter New Member

    Apr 9, 2015
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    Can anybody tell me the input voltage of an IR Emitter or IR Blaster with a standard 3.5 mm connector? And, if there are different ratings, where can I go shopping? It seems like a simple enough question, but I can't find the answer anywhere. Thank you very much.
     
  2. Papabravo

    Expert

    Feb 24, 2006
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    An IR emitter is a current device and the voltage is not relevant as long as it is above the threshold for the device. Atypical threshold might be in the 1-2 volt range. the current can be anywhere from a few milliamps to nearly and ampere when the device is pulsed. Are you looking at a datasheet for some device?

    OK, I see now that an IR Blaster is a complete product. I thought you were talking about an IR LED. I assume you've looked at the user manual and it says nothing.
     
  3. Scott Burns

    Thread Starter New Member

    Apr 9, 2015
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    You assume correct.
     
  4. Papabravo

    Expert

    Feb 24, 2006
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    So there is nothing the the way of a drawing of the connector showing the connections on the 3.5mm ploug/socket? We don't have a whole lot to work with here. What makes you think power is delivered through that connector?
     
  5. Scott Burns

    Thread Starter New Member

    Apr 9, 2015
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    There is only one connection. It's a 3.5 mm jack.

    [​IMG]
     
  6. Papabravo

    Expert

    Feb 24, 2006
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    The jack is the thing that the plug goes into. What is on the end of the cable in your picture is a plug.

    Looking at the device and looking online I can't tell if the device you have is supposed to be an input device or an output device. There seems to be a convention that if the jack is labeled "IR INPUT" then it is for a device that allows the IR sensor to be outside a cabinet. If the jack is labeled just IR then it is a blaster(emitter) that is used to control another piece of equipment. I don't see any good way of determining voltages used unless you hack a piece of equipment.
     
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