Hi! I have design project in an engineering class I am currently enrolled in and hoped I could get a couple questions answered. The project I have is basically to design a circuit that can take a ir photodiode and turn on some Led's when the diode detects IR.
My question is that since the diode only lets 5u amps through when it detects IR light I need to find a way to provide more current to the LED's. I was thinking of using an op-amp and having the op-amp supply the current and the necessary voltage, but how much current can an op-amp supply? and if it cannot supply enough can you give me any ideas on what else I can try?
Note. I only have +12volt supply and a ground (car battery)
Of course Im not looking for anyone to do my project, Im just looking for ideas.
Thanks alot!
Jennifer
My question is that since the diode only lets 5u amps through when it detects IR light I need to find a way to provide more current to the LED's. I was thinking of using an op-amp and having the op-amp supply the current and the necessary voltage, but how much current can an op-amp supply? and if it cannot supply enough can you give me any ideas on what else I can try?
Note. I only have +12volt supply and a ground (car battery)
Of course Im not looking for anyone to do my project, Im just looking for ideas.
Thanks alot!
Jennifer