I remember Win Hill quoting one of his techs, "when in doubt, use 100k and
0.01uF."Win said he agreed.
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11 years ago
-- Reply in group, but if emailing add one more zero, and remove the last word.
pc motherboard grounds
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11 years ago
Right. Most EE textbooks show circuits without values. Amateurs can get upset about that; they want to Spice it without having to think about it. They want assurance. Design is about wallowing in uncertainty and possibility.
I've thought a lot about this circuit topology issue. There's some enormous number of circuits that can be assembled from some small handfull of parts, most of which are nonsense. For some stated problem, where does the right circuit come from out of, say, 1e40 possibilities? Inventing a new circuit is only partially a conscious process; something else is going on.
Maybe 2% of the circuits that I sketch ever get to a PCB layout. I devastate trees worth of grid pads with circuit scribbles. That's part of the process. It upsets some people when scribble-level thinking is done, especially in public, like on a whiteboard or a newsgroup. I think it's fun. Some people, most people, are too rigid to play with ideas.
-- John Larkin Highland Technology Inc www.highlandtechnology.com jlarkin at highlandtechnology dot com Precision electronic instrumentation Picosecond-resolution Digital Delay and Pulse generators Custom timing and laser controllers Photonics and fiberoptic TTL data links VME analog, thermocouple, LVDT, synchro, tachometer Multichannel arbitrary waveform generators
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11 years ago
It=20
But the point is the topology is not a circuit. Not whether it can be described. Topologies are not all that interesting to me unless they do something that i haven't seen before. Phil Hobbs posts circuits when he can but, like JT, Jeorg, KRW and others here cannot always do so.
I will post something when i have something to post. I have before, just not much. And never just a topology.
?-)