Timeline for How can I calculate the minimum switch time between main battery and back-up battery for my board?
Current License: CC BY-SA 4.0
15 events
| when toggle format | what | by | license | comment | |
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| S Mar 11, 2020 at 18:40 | history | suggested | Yunus Temurlenk | CC BY-SA 4.0 |
I corrected the calculation
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| Mar 11, 2020 at 8:22 | comment | added | User323693 | the capacitance is too less and the load current is too high.. it seems correct. it is too low for sure | |
| Mar 11, 2020 at 8:18 | review | Suggested edits | |||
| S Mar 11, 2020 at 18:40 | |||||
| Mar 11, 2020 at 8:17 | comment | added | Yunus Temurlenk | @User323693 From this calculation: 5Volt * 22.1 uF / 4 Amper = 0,000027625 sec = 0,02 milisecond I am getting. Is this calculation true? Because its very low | |
| Mar 11, 2020 at 7:50 | comment | added | User323693 | please show the dip if possible or what is the time you are getting? | |
| Mar 11, 2020 at 7:10 | comment | added | Yunus Temurlenk | @Harper-ReinstateMonica I also couldnt get its value. | |
| Mar 11, 2020 at 7:10 | comment | added | Yunus Temurlenk | @User323693 I edited my question. and when I calculated your example but couldnt get the result. Am I miscalculating? You may edit the answer according to my edit. | |
| Mar 6, 2020 at 20:41 | comment | added | Harper - Reinstate Monica | 470mf, do you mean "milli" like about 0.5 farad? That's a big cap. You'll pay a price for such a big cap in inrush current everytime you power up. You may also have weird problems because that will slow the natural power-down of the system. | |
| Mar 6, 2020 at 12:04 | vote | accept | Yunus Temurlenk | ||
| Mar 6, 2020 at 12:01 | history | edited | User323693 | CC BY-SA 4.0 |
added 226 characters in body
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| Mar 6, 2020 at 11:28 | comment | added | Yunus Temurlenk | Okey then, I ll try to find out my capacitors. My last request is that can you assume a capacitor value and calculate the time to be able to see how the calculation is. And you may edit your answer. After that I ll accept your answer. Thank you very much. | |
| Mar 6, 2020 at 10:02 | comment | added | User323693 | Yes. The. Capacitors which are there at the point where you connect main supply | |
| Mar 6, 2020 at 9:07 | comment | added | Yunus Temurlenk | dV is 5 volt, I is 4 Amper but I have no idea how to choose capacitor. Can I use power supply capacitors? | |
| Mar 6, 2020 at 9:00 | comment | added | Yunus Temurlenk | Thanks for your answer. My board load current is 4A~6A(generally 5A) but I have no idea about the capacitors on the board. When I searched, I also couldnt find something about it. Can you suggest something how to go on? | |
| Mar 6, 2020 at 8:48 | history | answered | User323693 | CC BY-SA 4.0 |