Using 2 BEC's???

[Skysurf]

I have a Jazz 80-6-18 in my Logo. Powering the receiver is a 5A Hercules BEC. Is there any reason why I can't be using the Jazz internal BEC at the same time as the Hercules, for redundancy?

Thanks,

Jesper

[fireup]

If you want to use both for redundancy, then you need to add diodes on both power source so one does not bring down the other.

[Skysurf]

Do I need the diods? In the manual they say that the internal BEC can be used along with a regular rx pack, they don't mention installing any diods. Any reason why it would be different with an external BEC?

Thanks,

Jesper

[OICU812]

The output of the two BECs is different, therefore you certainly should not run the two in parralel. If you are bent on wanting two BEC, then disable the 80-6-18 one and install a second WR one with same output voltage.

[Skysurf]

Well, I'm not bent on having two. But since I am allready flying around with two, I thought it would be nice with the added redundancy. Right now the internal BEC is U/S because I have the read lead disconnected. If the external BEC would fail, I would loose the helicopter. Maybe diods are not a bad idea....

/Jesper

[EricW]

I thought Tom & Max (Voodoo on this forum) from Helistore.at are using the kontronic internal BEC and a external backup battery with a Emcotec DPSI RV between on their LOGO5003D.
Maybe they know what's needed?

Eric