xlDooM
Well-Known Member
- Messages
- 682
4x 1000uF 40V capacitors
Did you know castle charges $21 for a PCB with 4 caps about the equivalent of 1 of these on it? Even if they have dried out somewhat, they'll have significant capacity left.
I'm going to solder it onto the battery leads of my $11 ebay ESC and hope that's enough to keep it somewhat cool. Without having really looked into it in detail, I believe voltage ripple is one of the reasons why ESCs burn up. I guess everytime you gun the throttle the battery voltage sags and the ESC caps have to provide a significant proportion of the current, and warm up as a result. If you have a capacitor bank outside of (but nearby) the ESC, it will take part of the blow (and therefore the heat) instead.
Did you know castle charges $21 for a PCB with 4 caps about the equivalent of 1 of these on it? Even if they have dried out somewhat, they'll have significant capacity left.
I'm going to solder it onto the battery leads of my $11 ebay ESC and hope that's enough to keep it somewhat cool. Without having really looked into it in detail, I believe voltage ripple is one of the reasons why ESCs burn up. I guess everytime you gun the throttle the battery voltage sags and the ESC caps have to provide a significant proportion of the current, and warm up as a result. If you have a capacitor bank outside of (but nearby) the ESC, it will take part of the blow (and therefore the heat) instead.