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12 years ago
-- And you?
How to bias a CS mosfet, a different approach
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12 years ago
mosfets.
-- That's a ridiculous claim which can easily be disproved by examining our posting histories.
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12 years ago
mosfets.
Note how "Larkin-the-Narcissist" avoids a technical comment on my mutiple posts... what a fairy! ...Jim Thompson
[On the Road, in New York]
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
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12 years ago
I tried it and found that there was an improvement, but not a "much better" improvement. Not really worth the effort of modifying the circuit.
How did you determine it was "much better"?
John S
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12 years ago
mosfets.
Heck, you both screwed up. You a lot worse than Thompson, of course.
But maybe he'll defend your circuits.
John
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12 years ago
Almost no DC error as V+ changes, and a much higher impedance load on the RC, hence on the output node.
The DC servo is of course a 2nd order loop, so its dynamics have to be considered. I think someone posted a 3rd order loop.
John
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12 years ago
mosfets.
How would you know? You have killfiled me.
Idiot.
John
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12 years ago
"Almost" and "much higher" doesn't cut it, John. Got some numbers? Or, as requested the LTSpice schematic to prove what you are asserting?
John S
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12 years ago
I don't have to prove it. It's all obvious.
John
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12 years ago
mosfets.
-- Trolling?
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12 years ago
mosfets.
-- http://www.youtube.com/watch?v=TCm5chXtLnI
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12 years ago
-- Time wounds all heels.
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12 years ago
Sno-o-o-o-ort! Consider that line stolen for personal use ;-) ...Jim Thompson
[On the Road, in New York]
--
| James E.Thompson, CTO | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona 85048 Skype: Contacts Only | |
| Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
| E-mail Icon at http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
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12 years ago
mosfets.
Just curious as to where his loyalties, if any, lay.
John
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12 years ago
Like most of JF's wisdom, it's an ancient cliche. And an oddly bizarre one here.
So, which of these two PNP feedback circuits do you think will work better, the common-base or the diffamp? Would you have to Spice both before you can decide?
Or are you going to pretend that you can't see this post?
John
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12 years ago
mosfets.
-- Why is that any of your business?
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12 years ago
circuit.
-- Apropos, actually, although you can't see why.
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12 years ago
mosfets.
Really, you should try to be a little consistant. You and your bumchums are constantly discussing my personality, and playing passive-agressive lurker games, when you might talk about electronics. But you get all huffy when I examine your motives.
Thompson can
- Be loyal to you
- Be loyal to electronics and truth
- Chicken out and pretend he can't see my posts.
Odds favor (3), cluckwise.
Only (2) is good engineering.
John
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12 years ago
circuit.
Given our relative ages, and electronic design activity, you seem to be getting wounded a lot faster than I am.
John
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12 years ago
circuit.
-- Red herring non-sequitur, but if that's what you want to talk about, that's fine with me. On my end, ever since I started posting to USENET (15 or 20 years ago, IIRC) I've always posted schematics, either ASCIImatics (thanks, Steve. :-) or .pdf's and, in the last few years, since I've learned to use LTspice, LTspice .asc drawings and circuit lists to the text-based newsgroups in news:sci.electronics.* in order that my ideas for solutions to querants' requests for help could be tested by anyone interested. I've also posted the source code, as well as the compiled source, as .exe's, used to generate the results of many simulations as graphical plots released as executables generated by QB4.