Use a proper IR receiver IC, these work under pretty well all conditions fine.
Don't try and use just a photodiode and amplifier - and certainly NOT a 741, which is far too low a spec.
Is the input to the 741 AC coupled or DC coupled? The sun is a relatively constant source of IR, whereas your transmitter is modulated. You can take advantage of that fact to filter out the DC component (the sun) with a capacitor at the input to the 741, amplifying only the AC component. Of course, if the IR Sensor is saturated by the sun, that will not help, and shielding is the only solution.
Thanks for your both time.....
transmitter
-555 tmer
-Capacitor at 0.0047µf
-Ra at 1kΩ
-Rb at 10kΩ(potentiometer)
Frequency = 1.44/(Ra + 2(Rb))(C)
I got a unnameable infrared receiver on my old vcd but looks like TSOP382.., TSOP384.. and then trying to analysis there infrared family datasheets after, Analyzing and constructing the application circuit that i made...
BOOOOOMMMM
Ohhhhhhhh my god!!!!
All my concern about sunlight are solve
;suddenly one thing that i have noticed
on my circuit is that when i tried to vary the resistance (Rb) on my IR transmitter;in short i try to change the frequency on my transmitter.
Initially when the Rb at 3.3kΩ,the unnameable infrared receiver is saturated(or function),through formula "F = 1.44/(Ra + 2(Rb))(C)" the frequency i have found is 40khz something., but when i try to increase and decrease the Rb there are other resistance aside the 3.3kΩ can saturated(or function) the unnamed infrared receiver.
Why is it?
Then I try remote control from Panasonic TV as transmitter, my unnamed infrared receiver is function.
My question:
Why is it happen?
All commercial TV transmitter and Receiver tune at 40khz?
How can i fix this problem?
Thanks.....