Sine Here.

286

04:27:37

Trying to synthesize a Sine wave with a digital ring counter. I picked these resistor values somewhat at random and was surprised to find they work pretty well.  I used 2 root 2, 2, root 2 and 1 in case you couldn't tell. I know there has to be a way to calculate exatly what they should be.. Anyone know how?

published 9 years ago

Markkus92

9 years ago

I think you can use any resistor as long as your power supply can provide the current. Since its output voltage is mostly used in high impedance circuits, we use the usual 1k 2k ones without problem.

jpoulin0901

9 years ago

No, what I meant was in order to have it produce a sinusoidal stair-step output. When all resistors are made equal you get a triangular stair-step with all steps the same size.

theFox6

9 years ago

The resistors delay the switching of the lamps. You just chose the right values to make it work.

jpoulin0901

9 years ago

The resistors don't delay anything. The flip flops can source unlimited current in EC but even so, i made the lamps ultra low power. The lamps are only there to show the state of the system. The resistor network converts current to voltage.

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