Timeline for How to measure high DC voltage by micro-controller with an integrated approach?
Current License: CC BY-SA 4.0
21 events
| when toggle format | what | by | license | comment | |
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| Jun 24, 2019 at 18:46 | vote | accept | Johanness Nilsson | ||
| Jun 24, 2019 at 18:46 | answer | added | Johanness Nilsson | timeline score: 1 | |
| Jun 15, 2019 at 19:03 | vote | accept | Johanness Nilsson | ||
| Jun 24, 2019 at 18:46 | |||||
| Jun 5, 2019 at 10:20 | history | edited | Johanness Nilsson | CC BY-SA 4.0 |
revise question title
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| Jun 4, 2019 at 20:39 | history | edited | Johanness Nilsson | CC BY-SA 4.0 |
Looking for an integrated approach to accurately measure a decoupled DC high voltage with a standard micro-controller.
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| Jun 4, 2019 at 6:32 | answer | added | Jack Creasey | timeline score: 2 | |
| Jun 3, 2019 at 18:16 | comment | added | Jack Creasey | @jonk I am impressed at all the work you put into a replacement for a single unijunction transistor (media.digikey.com/pdf/Data%20Sheets/Central%20Semiconductor/… ). | |
| S Jun 3, 2019 at 14:50 | history | suggested | Mike | CC BY-SA 4.0 |
i edit the body
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| Jun 3, 2019 at 10:59 | review | Suggested edits | |||
| S Jun 3, 2019 at 14:50 | |||||
| Jun 3, 2019 at 5:08 | comment | added | jonk | @JohannessNilsson If interested in the relaxation approach (not designed for your specific case, though), you could look at this example. It's an approach. It will require some "calibration" work on your part. But with an MCU it's not at all difficult to achieve. | |
| Jun 3, 2019 at 4:08 | history | edited | Johanness Nilsson | CC BY-SA 4.0 |
clarify that the solution should not be via resistance reduction
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| Jun 3, 2019 at 3:58 | comment | added | Johanness Nilsson | @analogsystemsrf. I've heard trolls produce Efields too. ;-) | |
| Jun 3, 2019 at 2:09 | comment | added | jonk | @JohannessNilsson You might also consider a discrete relaxation oscillator that pulses an opto. You can count pulses, safely. Just another option. | |
| Jun 3, 2019 at 1:07 | comment | added | Johanness Nilsson | Thanks for the link. Had previously considered the optocoupler, but the idea hadn't been corroborated, and also, hadn't found links to available parts to explore this as a viable solution. Appreciate the sharing of the link. Very informative and essentially answers the question. Agree with @DaveTweed, that the comment could have been posed as an answer. This would be accepted as a viable answer to the question! | |
| Jun 3, 2019 at 0:54 | comment | added | Dave Tweed | @DKNguyen: Then what was your purpose in making the comment? Comments are only supposed to be used to improve the post that they're attached to -- either asking for clarification or pointing out errors. | |
| Jun 3, 2019 at 0:52 | comment | added | DKNguyen | @DaveTweed It's not complete enough to be an answer. | |
| Jun 3, 2019 at 0:48 | comment | added | Dave Tweed | @DKNguyen: Please do not answer the question in comments, as this bypasses the normal review process for answers, as discussed in meta | |
| Jun 3, 2019 at 0:46 | history | edited | Johanness Nilsson | CC BY-SA 4.0 |
add measurement tolerance
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| Jun 3, 2019 at 0:43 | comment | added | DKNguyen | Take a look at linear optocouplers. They are optocouplers with one LED that illuminates two matched photodiodes. One photodiode is used as a feedback component to drive the LED to linearize things. One of the most important things is to hunt through the datasheets for the various application circuits, especially the HCNR200. Not all datasheets will contain all circuits but the circuits are interchangeable between components since they are all the same concept digikey.ca/en/articles/techzone/2012/dec/… | |
| Jun 3, 2019 at 0:40 | review | First posts | |||
| Jun 3, 2019 at 7:58 | |||||
| Jun 3, 2019 at 0:37 | history | asked | Johanness Nilsson | CC BY-SA 4.0 |