About Astable 555 Timer
Adding a second resistor Rb to the 555 timer and connecting the trigger input to the threshold input causes the timer to self-trigger and run as a multivibrator. The capacitor C will charge through Ra & Rb and discharge...
Adding a second resistor Rb to the 555 timer and connecting the trigger input to the threshold input causes the timer to self-trigger and run as a multivibrator. The capacitor C will charge through Ra & Rb and discharge through Rb only. The duty cycle can be controlled by changing the values of Ra and Rb. Input Ra, Rb (in kOhms) & C (in uFarads) then push the Calculate button to get the values for the output high-level duration tH and low-level duration tL and frequency. Output driver and output waveform duty cycles are also determined.
Previous Versions
Here you can find the changelog of Astable 555 Timer since it was posted on our website on 2016-10-10 15:01:56.
The latest version is 1.0 and it was updated on 2024-04-22 12:26:24. See below the changes in each version.
Astable 555 Timer version 1.0
Updated At: 2014-11-19
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