Infrared Link Control System
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Circuit :Milan Markovi?
Email : milan.markovic2@zg.hinet.hr
English Notes : Andy Collinson
Description:
A basic Imfra Red Link for audio communication for distances upto 3 metres.
In his circuit Milan has created a basic Infra Red transmitter and receiver. The transmitter comprises a single amplifying stage driving two series connected IR LEDS. The input source is connected to J1. Please note that the device will pass a small DC current through it and also directly bias the transistor. A suitable device is therefore a high output crystal microphone. These can produce high output voltages up to 1 Volt but this will be reduced by the transistors low input impedance.
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Read More Source:
http://www.mitedu.freeserve.co.uk/
Circuits/Misc/irlink.htm
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