I found a circuit in the National datasheet for the 555 that is supposed to be a 50% duty cycle for a 555 astable. I built the circuit and it seems to work as expected. So I thought I would try to calculate the t1 (HIGH) and t2 (LOW) time for the output according to the formulae given. The HIGH calculation was pretty easy, and I think I got it right, but the LOW calculation is wrong. My work is attached; where did I go off track?
Thanks.
Never mind. I found my error.
Thanks.
Never mind. I found my error.
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