Hi guys
Im fitting a vector to my venturi and previously i have never bothered with a backup voltage supply.
However, in the event of a current sensor failure- i could fit a backup 5V supply from a BEC. is there any benefit to this?
I know it used to be the done thing but do people do it now?
Any advice would be great thanks.
Subbed ...
Quote from: Billy_boy_2010 on November 26, 2016, 11:48:47 PM
I know it used to be the done thing but do people do it now?
I think you're getting 2 different things mixed up here:
1 - Using a separate BEC (drawing power direct from the flight LiPo) to provide 5v to the RC receiver and servos, as a contingency in case the ESC blows.
2 - Using a separate 5v power supply to provide backup power to the Vector OSD in the event that the Vector's own PSU/Current sensor packs in.
They're not the same thing. You only need to consider No.2 if you have a Vector OSD so I wouldn't say it's "the done thing".
However, if you're concerned (I wouldn't be) it's really as simple as using a jumper to connect the middle pins of the RSSI/5V port and the AUX2/M6/TEMP port.
The AUX2/M6/TEMP middle pin is on the "servo power rail" and will therefore be getting it's 5v from however you're powering the rest of the servos/RC receiver... whether that be your ESCs built in BEC or a standalone BEC... as is "the done thing" No.1 above ;)
Unsubbed, brain meltdown .... :o
You're dead right blue I was confusing the two
Normally people use a bec I case the ubec from the esc fails. Given the vector doesn't supply the servos, it seems quite sensible to have a backup source from somewhere still.
But that makes perfect sense- I can provide a backup to both the servos/Rx AND the vector with one stand alone bec and a small jumper. Ideal thanks! :)
On a side note- im a little concerned by the vectors current sensor limit. I'm using a beast of a motor and wouldn't be surprised to see 80A at times. Is this going to fry or overheat the thing!?