Timeline for Ceramic capacitors in series to increase AC voltage rating
Current License: CC BY-SA 4.0
5 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 4, 2018 at 20:52 | comment | added | Tony Stewart EE75 | In case you are, you should not use 4 ceramic caps in series to run on 240Vac line. That requires an X1 rated plastic cap. These will be bulky since the Dk is much lower but AC line must withstand HV spikes. | |
| Sep 4, 2018 at 17:58 | comment | added | winny | Parallel resistors will only help DC voltage distribution due to mismatch is leakage. Depending on application you are more likley to encounter problems due to +-20 % difference in capacitance. | |
| Sep 4, 2018 at 17:12 | comment | added | Roman Matveev | Thanks, @brhans. That's really made the difference. However balancing resistors did not help in this case either :( I tried 100k resistors (less resistance made the the power dissipation too big for my application) | |
| Sep 4, 2018 at 17:03 | comment | added | brhans | Did you try your simulation with slightly varying capacitance values? Tolerance means that no 2 caps will have exactly the same value ... | |
| Sep 4, 2018 at 16:45 | history | asked | Roman Matveev | CC BY-SA 4.0 |