Timeline for How can I stop my relay chattering as the voltage falls?
Current License: CC BY-SA 4.0
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| Jan 27, 2020 at 13:56 | history | edited | ElectronSurf | CC BY-SA 4.0 |
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| Jan 27, 2020 at 11:14 | comment | added | awjlogan | @ElectronSurf - "faster" is not the reason to choose a comparator for this (although for a simple application an opamp will work, especially if you have a spare one on board already). Opamps are not designed to run open loop and have large differential voltages on their inputs, for example. Additionally, I would suggest putting in some hysteresis. | |
| Jan 27, 2020 at 9:39 | comment | added | awjlogan | Suggest changing your opamp for a comparator, which is designed for exactly this sort of purpose. If you only have an opamp you can do it, but it's not the optimal solution. | |
| Jan 27, 2020 at 7:50 | comment | added | Lundin | For 12V coils you might want to pick a lower zener voltage though. 12V coils can typically operate reliably down to 9V or so. | |
| Jan 27, 2020 at 7:46 | history | edited | ElectronSurf | CC BY-SA 4.0 |
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| Jan 27, 2020 at 7:40 | history | answered | ElectronSurf | CC BY-SA 4.0 |