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Ping! And the accuracy is gone
3/9/2019

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Figure 4
Effective source inductance swept between 16 nH and 1600 nH (slowest).

Effective source inductance swept between 16 nH and 1600 nH (slowest).

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michaelmaloney
michaelmaloney
4/9/2019 9:30:31 PM
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Newbie
What is the load
I guess it is important to take note of what the input is and how much to expect to work on. If it is a direct charge as opposed to a series of waves of charges, then the setup can be simpler. We wouldn't want to have a poor capacity to support what seems to be an overload of power to begin with.

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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.
In previous posts I’ve talked about transferring spreadsheet-based circuit design “directly” to the lovely LTspice simulator, and a reader of The Filter Wizard was keen to understand exactly what “directly” actually meant, and to get some practical information on how to do it.
The required selectivity of a customer design implied four-pole filters with about 10% bandwidth (passband width about 10% of the centre frequency). There was a catch---a tight power budget
Now, our customer doesn’t want to buy big, expensive, high quality capacitors to build an active filter with this response. So, having established the principle of optimizing in the analogue domain, let’s look at whether need to make any changes in order to use it to create a digital filter – which we’ll be able to implement on the Cypress PSoC 3
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