FG v2

116

00:53:14

Function Generator Version 2
1. Shake to start
2. Wait for convergence

6 Operational Amplifiers = 3 Waves

Left: Square
Middle: integral(Square) -> Saw Tooth
Right:  integral(Saw) -> Sine like

Pros: Cheap and Simple
Cons: No Amplitude or Frequency control 

Making it better is simple but, if i made this circuit any more complicated, no one would understand it and I would run out of space :'(

published 9 years ago

Robert_Kidd

9 years ago

Hi! How did you make it display the waveforms on separate y axes?

GingerKing

9 years ago

Slide your finger / mouse up or down on the oscilloscope display

Robert_Kidd

9 years ago

Great, thank you. Is all this stuff written down somewhere? For example, I see some circuits show Bode plots - how do you get EC to show them? Thanks in advance.

Robert_Kidd

9 years ago

Thanks for the circuit too. I can see myself building this :-)

GingerKing

9 years ago

I don't believe any of it is written down. If you have a sine source in your circuit, then another yellow play button will appear next to the original one. Press that one to see a Bode plot

Robert_Kidd

9 years ago

Many thanks for that. I did once get a bode plot by mistake and didn't know how I'd got it :-)

Robert_Kidd

9 years ago

Finally, are there any other 'tricks' you can let me in on? It does seem strange that a manual or guide hasn't been written by now.

GingerKing

9 years ago

Yeah. Circuits that say "no solution" can be solved by adding a switch in series with the source. You can "clone" component values by dragging and dropping them on similar components. Shaking your phone / mouse injects noise (this circuit). The mosfets are weak logic driving so increase the gate width a lot to have a power like mosfet. Ill let you know if I can think of anymore

GingerKing

9 years ago

Ok 1 more. The square wave source isn't in the list above. Take a DC or AC source, highlight it, click the wrench, you'll see a square source in the bottom.

Robert_Kidd

9 years ago

You've been very helpful and I appreciate it very much. Thank you.

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