confounded
New Member
Hi, i've almost got this 555 worked out, theres just one application i can't understand;
The circuit: When creating a timing chain, one 555 triggering the next and so fourth in order to produce a delayed high pulse at the circuits output.
What i dont understand: why the 1st 555s low output before its triggered doesnt trigger the 2nd 555 and why instead the 2nd 555 is only triggered by the falling edge of the 1st 555s output after the time period.
Hard to explain what i mean, i've attached a diagram to help illustrate.
The circuit: When creating a timing chain, one 555 triggering the next and so fourth in order to produce a delayed high pulse at the circuits output.
What i dont understand: why the 1st 555s low output before its triggered doesnt trigger the 2nd 555 and why instead the 2nd 555 is only triggered by the falling edge of the 1st 555s output after the time period.
Hard to explain what i mean, i've attached a diagram to help illustrate.