Timeline for How to model a noisy Zener diode in LTSPICE?
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6 events
| when toggle format | what | by | license | comment | |
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| Mar 19, 2016 at 16:05 | comment | added | Peter Smith | There is an application note at Maxim that suggests the noise power of a zener is in the order of -90dBm. maximintegrated.com/en/app-notes/index.mvp/id/3469 | |
| Mar 18, 2016 at 4:30 | comment | added | Pigrew | I have not seen any good noise models. Note that the noise from low-voltage Zener devices will be quite different than the noise from higher-voltage avalanche breakdown devices. I also expect that there is significant part-to-part variation since the manufactures do not control for noise. I did see Linear Technologies design note 70 which has a circuit with feedback to control the amplitude of the noise. | |
| Mar 18, 2016 at 4:21 | comment | added | Paul Uszak | I've tried inserting a voltage source between D1 and the base of Q1, but again I have no data as to the scale of the signal. Either someone tells me the AC Vpp to insert there, or I'll just have to build the damn thing. Seems a shame as isn't that what simulation is for? | |
| Mar 17, 2016 at 23:26 | comment | added | Paul Uszak | Yeh, I saw that one, but he's physically measured the noise in a jig. Is there no model anywhere? | |
| Mar 17, 2016 at 23:24 | history | edited | Pigrew | CC BY-SA 3.0 |
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| Mar 17, 2016 at 23:17 | history | answered | Pigrew | CC BY-SA 3.0 |