Timeline for How can I find and remove servo/motor noise from this audio amplifier?
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Sep 8, 2014 at 16:57 | vote | accept | JYelton | ||
| Sep 3, 2014 at 1:35 | answer | added | JYelton | timeline score: 1 | |
| Sep 1, 2014 at 22:04 | comment | added | Dave Tweed | Rather than just adding more capacitance, you might try adding some series inductance(s) between the caps and the power source. | |
| Sep 1, 2014 at 21:42 | comment | added | JYelton | @Dave I'm finding that adding caps at the servo side is helping. Everything is in a star topology. Currently I am putting some caps just after the buck converter and that seems to be diminishing the noise. I have a 3300 uF cap currently, and am wondering whether I should add more. | |
| Sep 1, 2014 at 21:26 | comment | added | Dave Tweed | Whenever possible, it's generally better to eliminate noise at the source. Have you tried adding decoupling caps to the servo power, as close to the servo you can get? Also, try using a "star ground" scheme, making sure that the ground current from the servo does not share any wiring with the arduino/amplifier. | |
| Sep 1, 2014 at 20:28 | history | edited | JYelton | CC BY-SA 3.0 | Added part about trying separate power supplies |
| Sep 1, 2014 at 20:19 | history | tweeted | twitter.com/#!/StackElectronix/status/506536867190558720 | ||
| Sep 1, 2014 at 20:01 | history | asked | JYelton | CC BY-SA 3.0 |