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How to avoid misLatching in 555 timer

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Adil Israr

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Hi Friends,,
I am using a monostable multivibrator in my project,,which is implemented using 555 timer.But the problem is when i switch any thing in power line, the multivibrator jumps to its unstable state and it starts mislatching,,interesting thing the project has no concern with power lines .Plz help me how can i avoid this??
 

Hai

555 ic is very much sensitive to electrical noise, i had experienced it many times.

Try using some other ics.

do you have a 100n capacitor near 555ic at power supply lines?

Regards
Nandhu
 

Ya i have bypassed it,but my project has no concern with power lines,,i am providing power from batteries,,but still it toggles if anything is plugged in power lines within the room,plz help me how can this be avoided???I have created the project but in last it is doing so.
 

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