Timeline for Adding a base resistor in a common emitter amplifier
Current License: CC BY-SA 4.0
19 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Aug 22, 2020 at 0:10 | answer | added | GNA | timeline score: 0 | |
| Jul 24, 2020 at 21:58 | answer | added | analogsystemsrf | timeline score: 0 | |
| Jul 24, 2020 at 19:41 | answer | added | Circuit fantasist | timeline score: 0 | |
| Jul 24, 2020 at 17:50 | comment | added | jonk | @HelenaWells One more addition. Just to give a flavor representing just a part (not all) of your question, see here. There, I provide just a taste of the mathematics involved in answering one facet of your question. As you can see, it's terse and quickly written. So it doesn't take a lot of my time. But it only communicates to those who understand math well. Mathematics is an important communication tool, as once you are trained in it, it speaks rigorously and clearly to those similarly trained regardless of culture, time, or language. | |
| Jul 24, 2020 at 17:38 | comment | added | jonk | @HelenaWells Note that this "stability" under discussion isn't just about stability against part variation of at least two model parameters. It's also about stability against ambient temperature and operating temperature variations, too. And the emitter resistor also provides better linear (less distortion) operation with smaller voltage gain variations. All of these are separately important, but simultaneously provided by the emitter resistor's presence. So that's another reason this would take time to pass along using only visual aids and no calculus of variations. | |
| Jul 24, 2020 at 17:34 | comment | added | jonk | @HelenaWells So that's going to make answering your question especially difficult. You need to acquire a few concepts in order to understand still more concepts. So you'd need to first be taught an intuition/visual approach of some basic ideas, followed by more, one step at a time to reach a good answer to your question. I don't think anyone here has the time to write out that much, with feedback from you at each step along the way to make sure you get each early bit before proceeding to the next. You are right, this can be acquired entirely visually and without math. But laborously, I fear. | |
| Jul 24, 2020 at 17:30 | comment | added | Helena Wells | No I wouldn't be able.All I know from math is basic algebra of real and imaginary numbers. | |
| Jul 24, 2020 at 17:24 | comment | added | jonk | @HelenaWells Similar thing, I suspect. So if I drew an exponential curve on a chart and picked out a point somewhere on it, you'd be able to draw a line at that point which represents the "rate of change" at that point? | |
| Jul 24, 2020 at 17:23 | comment | added | Helena Wells | No I am visually familiar with the rate of change of something according to something else(time). | |
| Jul 24, 2020 at 17:22 | comment | added | jonk | @HelenaWells So, are you visually familiar with the idea of a tangent line to a curve? Do you have gut feeling for it? | |
| Jul 24, 2020 at 17:21 | answer | added | linuxfan says Reinstate Monica | timeline score: 2 | |
| Jul 24, 2020 at 17:20 | comment | added | jonk | @HelenaWells That's going to be a problem because you won't be able to think for yourself. That doesn't mean you won't do well. I know people who have done very well in electronics without more math than a few basic bits of algebra. I was shocked, frankly. But they learned how to use Excel, well. They also had really, really good intuition and knew how to set things up in Excel. But they were never able to take on novel circumstances without wasting oodles of time experimenting, first. I think this is something you need to address, though I also don't want to poor cold water either. | |
| Jul 24, 2020 at 17:19 | comment | added | Helena Wells | I get the idea of how they work even without math. When I started high school at 11 yo, I remember understanding physics without math just simple visual pictures. | |
| Jul 24, 2020 at 17:17 | comment | added | BeB00 | @HelenaWells you may struggle with the more advanced subjects of EE if you dont like math | |
| Jul 24, 2020 at 17:14 | comment | added | Helena Wells | Jonk I don't like math. | |
| Jul 24, 2020 at 17:13 | comment | added | Helena Wells | Ah yes the base resistor reduces gain.However shorting the base and emmiter isn't it weird. Any transistor has some current tolerance. | |
| Jul 24, 2020 at 17:10 | comment | added | jonk | Because (1) that doesn't achieve the desired result (something you'd understand if you write out the equations); and, (2) the emitter resistor also reduces distortion. If the equations are rigorously derived from the circumstances, everything you need to know will be easily seen there in the equations. Mathematics is your friend. | |
| Jul 24, 2020 at 17:09 | history | edited | JYelton | CC BY-SA 4.0 |
Spelling
|
| Jul 24, 2020 at 16:59 | history | asked | Helena Wells | CC BY-SA 4.0 |