Just exhuming this very interesting thread from 20 years back. Recently we were talking about the trick of inverting the power supplies to reset an op amp integrator, and I think this is the first mention with attribution.
Cheers
Phil Hobbs
The best integrator is a single capacitor, with some sort of mechanical contact to connect it to the readout+reset circuit.
One could probably integrate a few electrons per second. Cosmic rays might be the biggest error source.
On 2023-03-24 13:35, John Larkin wrote:> On Fri, 24 Mar 2023 10:13:44
-0700 (PDT), Phil Hobbs > snipped-for-privacy@gmail.com wrote: >
For certain values of 'best', sure. It's often important to keep the terminal voltage of your integrator low, which is a lot easier to do with an active deice. >
Cheers
Phil Hobbs>
Anyone know if Win is keeping well? It's been a while since he's posted. Hope he's not upstairs arguing with Jim.
Hope he's not upstairs arguing with Jim.
Last time he disappeared, we were rewarded with AOE V3. And all the best to TUB, even if the reference is old.
Gerhard
I asked Paul Horowitz about Win, less than a year ago, and he said that Win was fine.
I e-mailed him about six months ago about a personal matter, and got a aimiable reply. At our age that doesn't mean that he is still okay.
Thank you Bill, I'm glad to hear that he has just decided that there's better things to do than post on SED. I can't say I blame him, it seems to have turned into an open sewer over the last few years.
It's not a fake name - I've got his e-mail address, and he's the guy who gave me a better .pdf of the Baxendall class-D oscillator paper than the one the publishers had sold me. Fred Bloggs *is* a fake name, so you are throwing rocks from inside a glass house.
And Flyguy, Commander Kinsey and a a are doing their level best to make s.e.d. an open sewer. All three post stuff that ought to be flushed away.
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