Position: Index > Unclassified >

Optical communication system

2017-08-17 09:47  
Declaration:We aim to transmit more information by carrying articles . We will delete it soon, if we are involved in the problems of article content ,copyright or other problems.


The simple modulator stage will accommodate most common LEDs. By adjusting the potentiometer, the bias of the transistor is varied until the LED is at its half output point. Then, audio will cause it to vary above and below this point
Optical communication system

The purpose of Rl is to limit the current through the LED to a safe level and the purpose of the 10 ohm resistor is to allow a portion of the modulating signal to be observed on a scope.



Reprinted Url Of This Article:
http://www.next.gr/light-laser-led/light-sensing/optical-communication-system-l12764.html