Two main part of this project
1. IR source circuit (Ir Remote)
2. Receiver
The receiver circuit has 3 parts:
1. IR sensor -> input -> 2. opamp 741 -> Output -> 3.MOSFET (Will use as a switch)
It should work at least 3 meter distant.
Opamp 741 is in simple non-inverting configuration (Vout = Vi*(1+R2/R1))
I used R2(feedback) 10M and R1=1M.
The output of 741 will be used as the gate voltage of MOSFET. So when I send ir signal there will be a input for opamp741 that will amplify the voltage and the amplified voltage used at the gate of MOSFET. Then the LED situated between drain and source will be illuminated.
The problem is when I contruct the 1st, 2nd and the part separately it is working but not when I join them.
Anonther problem is that the ir is not working from more than two feet also not working if the source and the reciever are not directional. I need to make them work like TV Remote and from at least 3 meter.
I'm new in practical circuit project. Please help me in this circuit project with diagram indetails.
1. IR source circuit (Ir Remote)
2. Receiver
The receiver circuit has 3 parts:
1. IR sensor -> input -> 2. opamp 741 -> Output -> 3.MOSFET (Will use as a switch)
It should work at least 3 meter distant.
Opamp 741 is in simple non-inverting configuration (Vout = Vi*(1+R2/R1))
I used R2(feedback) 10M and R1=1M.
The output of 741 will be used as the gate voltage of MOSFET. So when I send ir signal there will be a input for opamp741 that will amplify the voltage and the amplified voltage used at the gate of MOSFET. Then the LED situated between drain and source will be illuminated.
The problem is when I contruct the 1st, 2nd and the part separately it is working but not when I join them.
Anonther problem is that the ir is not working from more than two feet also not working if the source and the reciever are not directional. I need to make them work like TV Remote and from at least 3 meter.
I'm new in practical circuit project. Please help me in this circuit project with diagram indetails.
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