some wave processing

00:34:38

x = blue trace
y = orange trace
z = green trace

functions:

y = 12/144 * pow(x, 2); 

if switch is down then
z = 12/144 * pow(x, -1);
else
z = 120/144 * pow(x, 2 - 1) ?;

I'd try some components parameters values experimentally to make best approximation of above functions. Best values would require calculations I can't do correctly here by my own.

published 7 years ago

Daro1985

7 years ago

Looks like I still don't understand exactly transistor logic. What are the functions of voltage drop on pnp, npn between any of it' s connetors. Eg. I can set 0.2V low on generator and it is lower then 1.4 V or even lower then 0.7 V but voltage on orange trace doesn't drop to 0. I don't understand. I thought that despite inputs resistance collector -> emitter voltage drop is no lower then 1.4 V.

Daro1985

7 years ago

Hi hurz. I'm poor in math and I propably could have troube calculating best component parameters. I think it's already good but can be even better (eg. red trace in compare with green is not the same but very near to be the same). Can You help me with this ?. I want best approximation of functions in description. How about using it as audio signal compressor/decompressor. What audio quality I should expect ?.

add comment in editor

EveryCircuit is an easy to use, highly interactive circuit simulator and schematic capture tool. Real-time circuit simulation, interactivity, and dynamic visualization make it a must have application for professionals and academia. EveryCircuit user community has collaboratively created the largest searchable library of circuit designs. EveryCircuit app runs online in popular browsers and on mobile phones and tablets, enabling you to capture design ideas and learn electronics on the go.