modified 9 years ago

What happening here

01:11:45

Another bug?

published 9 years ago

nikisalli

9 years ago

The output of the 555 is something like a current source sometimes and so it charges the capacitors to an infinite voltage

nikisalli

9 years ago

Not in reality just the 555 in the simulation

jpoulin0901

9 years ago

A simple fix for this problem is to use a push-pull pair of bjt's to buffer the output from the timer. Npn goes on top, pnp goes on the bottom, collectors go to the supply rails, gates go together to form the input emitters go together to form the output. You also need a resistor between the chip and the buffer. I don't why 555s don't have a similar stage integrated.

rich11292000

9 years ago

It would help to have some resistance on the output. Its hard to do math with out numbers.

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