Just messing around with a Pulser circuit

A project log for Light Logic

Using a Led and CdS LDR to form inverting Photonic logic gates. The entire boolean logic set handled by resistors and diodes! Who'd'a thunk

Dr. CockroachDr. Cockroach 11/15/2018 at 23:171 Comment

November 15, 2018 -  just messing around with Light Logic tonight and wired up the same clock pulser circuit that I had used in the first few weeks of the IO Cardboard Computer project. This time all Light Logic gates from the clock itself through to the final output led.

Fed the clock output through three Not gates and then to one input of a And gate ( Nand + Not ) and then fed the clock directly to the other And gate input. Connected a led to the And gate output and the result was a very short pulse just like I had using DTL gates a year or so ago.

Just proves more and more what the Light Logic gates can do in real applications.


Ted Yapo wrote 11/16/2018 at 17:20 point

Do you know how long the pulse is, so you can estimate the propagation delay of your new logic family?

You could use a ring oscillator, too, but you already have this built...

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