Timeline for Transient protection to prevent microcontroller freeze - Selecting MOVs and TVS diodes
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
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| Apr 13, 2017 at 12:32 | history | edited | CommunityBot |
replaced http://electronics.stackexchange.com/ with https://electronics.stackexchange.com/
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| Mar 19, 2016 at 11:58 | history | tweeted | twitter.com/StackElectronix/status/711159799640170496 | ||
| Mar 16, 2016 at 15:04 | answer | added | Marko Buršič | timeline score: 1 | |
| Mar 16, 2016 at 13:20 | history | edited | Whiskeyjack | CC BY-SA 3.0 |
Added the image of power supply schematics
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| Mar 16, 2016 at 10:36 | comment | added | Marko Buršič | I guess you have to redisgn the PSU, because if you have optoisolated inputs you shouldn't have such problems. So how do you power MCU and how the inputs/outputs, show the PSU section schematics. | |
| Mar 16, 2016 at 10:05 | comment | added | Whiskeyjack | Thanks @Marko for the reply. Putting TVS diodes along with RC seems a little difficult due to less board space. Since total number of GPIO is over 20, it will take around 80-100 components (2 tvs diodes + R + C per line). Also, my IO lines are already optically isolated. So wouldn't it be an overkill? | |
| Mar 16, 2016 at 9:40 | comment | added | Marko Buršič | I would put a MOV on AC line input and TVS at each MCU input. Also a series resitor and small cap before TVS is a good option, it will limit the rate of change of asignal thus TVS will react always at same knee point. | |
| Mar 16, 2016 at 8:08 | history | asked | Whiskeyjack | CC BY-SA 3.0 |