IR ne555 receiver

[NyLODA]

Hi, everyone. I am trying to build IR relay switch. I am using TSOP 1736 and ne555. I used one 555 as ir reciever and other one in bistable mode as flip flop switch. Everything works fine but sometimes i am getting first 555 false triggered. What can cause that and how i can fix it. I used similar schematic for ir reciever (I used TSOP 1736 instead 1738)as this one:http://gadgetronicx.com/wp-content/uploads/2013/10/receiver.gif

 

[Alec_t]

Welcome to EP!
The circuit in the link is a monostable, not bistable.
The TSOP1736 is for a 36kHz IR signal. What is your IR modulation frequency?

 

[NyLODA]

You didn't understand me. In the link is only first part of my circuit and I am having troubles with it. Output of the circuit in the link is fed into bistable flip flop switch.

 

[Alec_t]

The 555 circuit has a high shoot-through current when its output changes state. If your supply is not adequately decoupled its voltage can dip as a result and cause false operation of whatever it supplies. Try connecting respective 100uF caps across the supply terminals of each 555, as close as possible to the IC supply pins.

 

[NyLODA]

Ok, thanks i will try.