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The Filter Wizard Remastered

Countdown to s-to-z…

Kendall Castor-Perry
More Blogs from The Filter Wizard Remastered
Using optimization to design circuits (some might call it organized guesswork – for some algorithms, that’s a pretty good description) isn’t a new insight.
Why did I want to set my source and load resistances to the same value?
Removing the vuvuzela narrow-band noise was presenting challenges to broadcast engineers
There’s a further cool thing you can do with a spreadsheet that most SPICEs can’t. That’s to use the spreadsheet ‘solver’ functionality to adjust component values in the search for a better-fitting circuit – or even to find a set of component values for a circuit you can’t otherwise design.
You now need to adjust component values to achieve some system goal, such as predefined frequency response or time behaviour, and there’s no closed method for working out those values.
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