Timeline for Diode emission coefficient and saturation current
Current License: CC BY-SA 3.0
6 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Oct 16, 2023 at 9:25 | answer | added | Jerzy Przezdziecki | timeline score: 2 | |
| Jul 10, 2022 at 6:00 | history | tweeted | twitter.com/StackElectronix/status/1546011360164823040 | ||
| Aug 13, 2016 at 21:33 | comment | added | jonk | I wasn't trying to explain everything. If I were, I'd write an answer. I just wanted to dash off a possibly helpful note. The thermal voltage concept either means something to you or it doesn't. If it does, you might understand why a model parameter that fusses with that value may be needed. If not, it's beyond my interest to answer for now. | |
| Aug 13, 2016 at 21:25 | comment | added | abruzzi26 | Not sure if I fully understand your comment. How does this affect the I-V characteristic graph of the diode? | |
| Aug 13, 2016 at 18:21 | comment | added | jonk | The emission coefficient is a model parameter and there are actually several of them. But I think you are talking about the forward biased one in the Ebers-Moll model. In a small signal BJT, it's n=1 mostly. In diodes, it's often n=1.7 to n=3 (sometimes.) There is a thermal voltage (kT/q) that is modified by n to be (nkT/q), instead. It's tweaked to help fit the idealized model to observed behavior. | |
| Aug 13, 2016 at 18:16 | history | asked | abruzzi26 | CC BY-SA 3.0 |