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Method for preventing 555 from generating a pulse on power-up

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DrWhoF

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Can someone come up with a simple method of preventing 555 from generating a pulse on power-up?
Thanks
 

Re: 555 on power-up

You might be able to do somthing with a three pin brownout detector and a gate or some transistor switching to blank the pulse. Depends on the timing.
 

Re: 555 on power-up

Below is a simple, but in the same time quite reliable solution to this problem.
Regards,
IanP
 

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    DrWhoF

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