555 Monostable and Astable Calculator

555 Calculator
This calculator evaluates the performance of the generic
bipolar 555 timer chip in both monostable and astable modes.
Please enter the component values
you require in the spaces provided, then click on the button
and the results will be displayed.

As a rule of thumb, it is best to choose resistor values above 1K and below 1Meg. 
Large electrolytics should be avoided in favour
of large value R's to reduce power consumption and timing inaccuracies due to leakage



T Output High (Seconds) =


T1 Output High (Seconds) =

 T2 Output Low (Seconds) =

  T Total Period (Seconds) =

Frequency (Hz)   =               

Duty (%High) =                     

Note: It is not possible to have the low period longer than the high period with this basic circuit.
Fortunately the 555 is able to sink as well as source current, or alternatively a PNP
output transistor may used to give the necessary inversion.


Post a Comment

You Like the article, Then Please Leave a Comment here !!!


Related Posts Plugin for WordPress, Blogger...
ELEX IDEA BLOG © 2012 | Powered by Blogger