schmitt trigger oscillator

flashlaser · Apr 30, 2003

Hi,
I just wanted to know how to calculate the valves of the resistor and capacitor to make a 1Hz oscillator. If someone could give me the result it would be nice.

Thanks

kinjalgp · May 1, 2003

Is your oscillator 555 based or BJT based?

Chippie · May 1, 2003

How accurate do you want the 1Hz to be in terms of time?

Might be better to generate a faster signal and divide it down to get the accuracy if needed

klbullard · May 29, 2009

flashlaser said:
Hi,
I just wanted to know how to calculate the valves of the resistor and capacitor to make a 1Hz oscillator. If someone could give me the result it would be nice.

Thanks

The frequency formula is:

F= (1.2)(10^6)/RC

This is a nice web page with everything you ever wanted to know about a schmitt trigger.

TALKING ELECTRONICS BEC Page 49

schmitt trigger oscillator

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schmitt trigger oscillator

flashlaser

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