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Dennis Feucht
Content posted in September 2016
How Technology Is Lost: Stories from Ancient and Recent History
Dennis Feucht  
9/13/2016   19 comments
In our time of global interaction, could technology be lost by war or other social factors? Loss need not be caused by a social event but merely by environmental factors. A trend in information technology is toward increasing fragility.
Seemingly Simple Circuits: The TL431 Voltage Regulator, Part 3
Dennis Feucht  
9/2/2016   21 comments
Now we plunge deeper in, to look at closed-loop output resistance, derive some formulas, then calculate transconductance and output resistance from manufacturer part data.




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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.
Infineon MOSFETs have been embedded into PC boards by Schweizer Electronic AG
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.
As a member of the electronics design community, I am angry and disappointed with the recent deaths of 346 people due to the Boeing MAX 8 design
The theoretical advantages of GaN-based power transistors are now being realized in mainstream system designs. Power supplies for data centers and telecom switching racks are two application areas where GaN transistors show significant improvement in comparison to systems using best-in-class Silicon-based Superjunction devices.
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