Hello guest, if you read this it means you are not registered. Click here to register in a few simple steps, you will enjoy all features of our Forum.
This forum uses cookies
This forum makes use of cookies to store your login information if you are registered, and your last visit if you are not. Cookies are small text documents stored on your computer; the cookies set by this forum can only be used on this website and pose no security risk. Cookies on this forum also track the specific topics you have read and when you last read them. Please confirm whether you accept or reject these cookies being set.

A cookie will be stored in your browser regardless of choice to prevent you being asked this question again. You will be able to change your cookie settings at any time using the link in the footer.

Thread Rating:
  • 2 Vote(s) - 4.5 Average
  • 1
  • 2
  • 3
  • 4
  • 5
Filtering out ESC noise in Power for FPV - Capacitor choice
#16
(28-Feb-2017, 07:51 PM)Helibus Wrote: Again - I don't dispute that adding a capacitor is a smart thing to do, and that a low-ESR one is a better way to go.  I'm just saying that the video could have done a better job at making the argument.

The video is what convinced me, so even if it could have been done better, it was enough to make me start using low-ESR caps.
Reply
Login to remove this ad | Register Here
#17
(26-Sep-2016, 02:35 AM)Oscar Wrote: To be honest i don't know how noise in 5V power would affect Gyro on a FC without testing it further. But I have used littlebee on my LOS quad and it flies just fine without power filtering for FC. Smile i wouldn't bother to add capacitors to the power if i am flying line of sight. We are picky about noise only because it's really obvious in video.

I'm building a quad with little bees. And I was thinking on how to filter their noise not to allow it to get to PDB, and then FC and CAM/OSD/VTX (my CAM/OSD is powered trough UART2 socket on FC, VTX directly from PDB)

Would adding 4 low ESR capacitors - each one to each power leads of ESC do the trick?
Reply
#18
(05-Apr-2017, 08:14 PM)Darmach Wrote: I'm building a quad with little bees. And I was thinking on how to filter their noise not to allow it to get to PDB, and then FC and CAM/OSD/VTX (my CAM/OSD is powered trough UART2 socket on FC, VTX directly from PDB)

Would adding 4 low ESR capacitors - each one to each power leads of ESC do the trick?

This is exactly how it was handled back in the ancient times of 2 years ago Smile
Find me on Youtube and Instagram. I currently fly: DRC Aura, NOX5R, Minimalist 112 and drive a scrap RC car
Reply
#19
(05-Apr-2017, 08:26 PM)KonradS Wrote: This is exactly how it was handled back in the ancient times of 2 years ago Smile

Would it be better to stick them next to ESC leads from PDB, or to ESC leads on ESC side? You know - I like to leave PDB as it is, as it makes cabling cleaner. Bu tby PDB has no filtering at all, and Im relaly afraid what will happen when package with little bees arrive .)
Reply
#20
(05-Apr-2017, 08:51 PM)Darmach Wrote: Would it be better to stick them next to ESC leads from PDB, or to ESC leads on ESC side? You know - I like to leave PDB as it is, as it makes cabling cleaner. Bu tby PDB has no filtering at all, and Im relaly afraid what will happen when package with little bees arrive .)

In theory - a cap should be closest to the source of noise as possible. In practice, we use wires and components that short/small, that it doesn't really matter if you use a small cap on ESC, 4 caps on PDB or a big one on battery leads.
Find me on Youtube and Instagram. I currently fly: DRC Aura, NOX5R, Minimalist 112 and drive a scrap RC car
[-] The following 1 user Likes KonradS's post:
  • Drone0fPrey
Reply


Possibly Related Threads...
Thread Author Replies Views Last Post
  Motor fail, how to tell if it is the ESC or FC? husafreak 3 99 04-Mar-2024, 10:20 PM
Last Post: hugnosed_bat
  20x20 esc on 6s 5”? Rob Axel 6 207 01-Mar-2024, 07:18 AM
Last Post: Recursion
  Capacitor for 10" 8S build coolUsername 5 232 05-Feb-2024, 04:08 AM
Last Post: romangpro
  Capacitor in flames? husafreak 13 412 22-Jan-2024, 10:59 PM
Last Post: Suros
  Seeking Programmable FPV video receiver for 1.2-1.3 GHz Frequency Range holysepac 0 127 13-Jan-2024, 06:56 PM
Last Post: holysepac


Login to remove this ad | Register Here