WattFlyer RC Electric Flight Forums - Discuss radio control eflight

WattFlyer RC Electric Flight Forums - Discuss radio control eflight (http://www.Wattflyer.com/forums/index.php)
-   Power Systems (http://www.Wattflyer.com/forums/forumdisplay.php?f=17)
-   -   ESC - You tend to get what you pay for. (http://www.Wattflyer.com/forums/showthread.php?t=73039)

quorneng 01-24-2014 04:38 PM

ESC - You tend to get what you pay for.
 
1 Attachment(s)
This is a cheap 'no brand' 20A ESC.
It works as well as any but just look at the impression the MOSFETS have made of the conductive layer of the heat sink.
Attachment 173076
Two of the MOSFETs don't really make any contact at all and it is only partial on 2 more!
There must be a real risk it would fail due to overheating no matter how much airflow actually passed over the heat sink.

It needs a thicker and softer conductive layer on the heat sink to ensure each MOSFET is adequately cooled.


All times are GMT +1. The time now is 03:35 AM.

Powered by: vBulletin
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright 2005 WattfFlyer.com
RCU Eflight HQ

Page generated in 0.07670 seconds with 13 queries