SR3300T with HV Servos
#1
SR3300T with HV Servos
According to the specs on Spektrum:
http://spektrumrc.com/Products/Techn...dID=SPMSR3300T
If I use a HV servo, will the RX automatically provide a higher voltage to power the servo to achieve its full potential? Will the RX provide 6v or 7.4v to a servo like this?
http://www.hobbycity.com/hobbycity/s...idProduct=9983
http://spektrumrc.com/Products/Techn...dID=SPMSR3300T
If I use a HV servo, will the RX automatically provide a higher voltage to power the servo to achieve its full potential? Will the RX provide 6v or 7.4v to a servo like this?
http://www.hobbycity.com/hobbycity/s...idProduct=9983
#3
Tech Regular
iTrader: (8)
If you run electric the ESC usually provides 6V. You need to get a BEC (like Castle BEC) and adjust the output voltage with that. In your case to 7.4V. The receiver will get 7.4V and so will the servo. You need to remove the red wire from the ESC's RX wires so you can "disable" its BEC. There are some pics on Castle's site.
On nitro you could get a LiFe receiver pack or a lipo one and again use the BEC to adjust output voltage.
On nitro you could get a LiFe receiver pack or a lipo one and again use the BEC to adjust output voltage.
#4
You could also solder acouple of diodes on the + from the ESC to the RXer.
That would drop your voltage by approx 1.4v, and the receiver will be fine.
Shawn.
That would drop your voltage by approx 1.4v, and the receiver will be fine.
Shawn.
#6
Finially had time to come back to this one again, and if you are running spektrum then you should be fine. Their own specs say 9.6V input, so a BEC is not needed at all.
If you are running an AMBrc transponder, you may still have to run lower voltage for it thogh. The MTX (the clones) are rated for 20V!
Cheers,
Shawn.
If you are running an AMBrc transponder, you may still have to run lower voltage for it thogh. The MTX (the clones) are rated for 20V!
Cheers,
Shawn.
#7
Adrictan, installing an external BEC isn't a hassle at all. Just need to add a set of small leads in parallel with your main battery input. I take those small wires into the BEC at 14.8V and plug the other side of the BEC into the receiver which outputs 7.4V. It's mostly a matter of finding where to mount the BEC and how to run the wires cleanly. As you can tell my wiring isn't that aesthetically pleasing!
Last edited by simplechamp; 04-03-2010 at 12:32 PM.