[NSRCA-discussion] BEC

[Bob Richards]

I have not used a BEC in anything larger than ~ 500 watts. (I have never had anything larger than 500w yet, either!). I have used the ESC's built-in BEC as well as a seperate BEC and have never had a problem.
 
However, the problems that I have heard of is with the higher powered setups, which is interference with the receiver. This is one reason for the opto-isolated throttle input to the ESC - to eliminate an electrical connection between the ESC and receiver. In fact, it would not be a bad idea to have a fiber-optic cable running between the two, but maybe that is overkill.
 
The 72MHz receivers would be more susceptible to this type of interference, but it is not inconceivable that the electrical noise would not interfere with the decoder in a 2.4GHz RX, or the servos for that matter.

Bob R

--- On Fri, 6/6/08, Stuart Chale <schale at optonline.net> wrote:

From: Stuart Chale <schale at optonline.net>
Subject: [NSRCA-discussion] BEC
To: "General pattern discussion" <nsrca-discussion at lists.nsrca.org>
Date: Friday, June 6, 2008, 3:43 PM

Is anyone using a BEC on their electric powered models?  I am sure this 
may have been discussed before but I was just reading a general article 
on them in Sport Flyer and began wondering why not? 
Compared to a 2 cell LIPO and regulator the BEC is about the same weight 
as the regulator (Medusa Research as an example 20 gms) and you lose the 
battery.  I run a 2 cell TP 910 mah pack which weights 44 gms.  Seems 
like an easy weight loss.  Is there a down side to using a modern BEC 
designed for 10 cell lipo packs?  Hard to believe you could have a 
catastrophic failure in the flight packs without a fire that would drive 
the voltage below that which the BEC would no longer work.

Thanks
Stuart C.

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