I had a kind of breakthrough this weekend: an antilog generator that is temperature stable without external compensation.
TL;DR
Years and years of "upside down" thinking with the "offset-and-invert" conceptualization with LM3900 current-based circuit design lead to well, more of the same thought process. In this case, "offset-and-invert" conceptualization with LM324 voltage-based design, but also on a single supply voltage. This was in the service of creating a VCCS -- to use with the LM3900, for the classic AN-72 type of VCO. But the key single supply voltage adder-subtractor circuit used in the VCCS led me to that same circuit used instead in a novel form of an antilog generator. The antilog generator has limitations, but mostly, it actually works![:guinness:]( "Guinness ftw!")
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But the thought process in detail, technical notes and scope fotos are here:
https://modeliiiems.blogspot.com/2024/0 ... tilog.html
TL;DR
Years and years of "upside down" thinking with the "offset-and-invert" conceptualization with LM3900 current-based circuit design lead to well, more of the same thought process. In this case, "offset-and-invert" conceptualization with LM324 voltage-based design, but also on a single supply voltage. This was in the service of creating a VCCS -- to use with the LM3900, for the classic AN-72 type of VCO. But the key single supply voltage adder-subtractor circuit used in the VCCS led me to that same circuit used instead in a novel form of an antilog generator. The antilog generator has limitations, but mostly, it actually works
.But the thought process in detail, technical notes and scope fotos are here:
https://modeliiiems.blogspot.com/2024/0 ... tilog.html
Statistics: Posted by uniqview — Mon Mar 25, 2024 9:05 am — Replies 0 — Views 30