Position: Index > Led Circuit >

40KHz MODULATED LIGHT DETECTOR

2014-12-18 06:41  
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.

This circuit uses a unique cascode amplifier circuit to convert the current from a PIN photo diode to a current without any feedback network. It is very stable and very sensitive. The circuit shown has the potential for a conversion factor of 10 volts per microwatt at 900nm. I included a simple JFET post-amplifier with a gain of about 20.

 

Circuit 40KHz Light Receiver Front End Circuit designed by David A. Johnson, P.E. (June 14,2000)

 

 


 

 


Reprinted Url Of This Article:
http://www.discovercircuits.com/DJ-Circuits/40krvr2.htm