modualation of ir signal

Thread Starter


Joined Oct 1, 2008
actually i was working on ir i am thinking of modulating the ir signal so that the ambient light,flash light can be neglected for the purpose of being used in a micromouse....
firstly i use a bandpass filter 20khz .and then a peak detector circuit.
i am actually confused in the peak detector circuit...please drop in ur ideas to elaborate this concept