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Old 14th January 2013, 06:08 PM   #11
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Quote:
Originally Posted by Mooly View Post
Does the "new" version have to be stable if the input is left open circuit ?
Yes.
 
Old 14th January 2013, 06:14 PM   #12
sreten is offline sreten  United Kingdom
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Hi,

This is dull. Some form of bootstrapping might work
but its hardly like that hasn't been done before.

rgds, sreten.
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Old 14th January 2013, 06:29 PM   #13
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Originally Posted by sreten View Post
Hi,

This is dull. Some form of bootstrapping might work
but its hardly like that hasn't been done before.

rgds, sreten.
Do not be discouraged. There is a way and allows us to apply it to all currently known (with a very few changes). Like everything else, employment restrictions may apply in some areas.

regards
 
Old 14th January 2013, 06:30 PM   #14
Mooly is offline Mooly  United Kingdom
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Are you going to say you have re-connected the "first" 4K7 across the inputs to the opamp. That is between pins 2 and 3 ?
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Old 14th January 2013, 06:38 PM   #15
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Originally Posted by Mooly View Post
Are you going to say you have re-connected the "first" 4K7 across the inputs to the opamp. That is between pins 2 and 3 ?
No. But I can not give much more help (please understand me)
Anyway, check if what you propose meets the requirements given.

regards
 
Old 14th January 2013, 06:42 PM   #16
Mooly is offline Mooly  United Kingdom
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OK

Just turning it around in my head. I'll wait and see what you come up with.
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Old 15th January 2013, 04:10 PM   #17
JMFahey is offline JMFahey  Argentina
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Ok, go patent it and revolutionize electronics.
Good luck.

PS: as you see, I don't think there's much meat in your discovery, but letting that aside, what you are doing is foolish, because if somebody guesses what you are trying to do , and posts that answer here, which is a public and widely known Forum, that alone basically turns it into a public domain idea.

Or worse: even if it were something patentable (of which I'm not so sure, and that's an understatement), anybody who "guesses" it, *without* your help, (which is easy to prove just reading your posts), will automatically be a BIG challenge to your rights (if any).

Funny thing is that you are posting in a Forum full of intelligent people, and wrapping it in a challenge.
Talk about walking in a minefield !!!
 
Old 15th January 2013, 04:49 PM   #18
JMFahey is offline JMFahey  Argentina
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OK, here it is.
Click the image to open in full size.

By the way, as mentioned by *many*, that's called "bootstrap" and is as old as the mountains.

Meets all constraints, of course.
Including stability, reliable DC path to ground, etc.
And no, it does *not* behave "as a DC coupled circuit" as you seem to believe.

Mainly because no capacitor coupled input amplifier passes DC.
 
Old 15th January 2013, 05:53 PM   #19
sreten is offline sreten  United Kingdom
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Hi,

I'd like to see the list of "many other advantages" claimed,
for the really quite awful 741 IC used as an audio stage.

rgds, sreten.

Nice work by JMF taking the challenge at face value
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Last edited by sreten; 15th January 2013 at 06:07 PM.
 
Old 15th January 2013, 06:27 PM   #20
sreten is offline sreten  United Kingdom
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Hi,

Seems you can patent just about any old nonsense nowadays,
if you pay for it, and given the patent is legally challengeable,
any real "due process" only starts when you try to enforce it.

Great for patent lawyers, very poor for the gullible.

Long gone are the days when Einsteins worked in patent offices,
basically clueless penpushers nowadays, with no responsibility
at all regarding patent rights and infringements, that is legal.

rgds, sreten.
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