Guys i need some help. So i have this application in which i use an infrared led at sending end sfh 4845 osram and at receiving end i have a photodiode sfh 2400 fa osram in reverse bias. I need a simple amplification circuit using any bjt so that when i shine led, i get some amplified voltage at output. I had tried common emitter amplification. As it amplifies current. But somehow haven't gotten any result. I would really appreciate your help. Thank you.