View Full Version : Help! please recommend li-po regulator for receiver
drstillpatient
May 05, 2007, 12:32 PM
i'm looking to power my receiver with a 2 cell 2100 li-po, (5 digital servos). I know i need a regulator but most i see on the internet here have Futaba or JR type connectors on both the wires stickin out of them.
I need one with room for a Dean's connector on one wire and the JR connector on the other. Could you folks recommend one that you have used and found reliable ?
wireit
May 05, 2007, 02:18 PM
I use smart-fly rc regs... most of them are setup for dual battery inputs and switch if theres a failure, most all of them use deans.
joe
drstillpatient
May 08, 2007, 10:48 AM
Is it either of these?
http://www.smart-fly.com/Products/Regulator/1.htm
I dont see a place for a Deans on the first one and on the second how does it connect to the receiver?
or any of these...
http://www.smart-fly.com/Products/Regulator/2.htm
:confused:
any help wouold be appreciated...
staggerwing
May 08, 2007, 11:57 AM
Why not do as most & just change the connector to your needs ?
GWRIGHT
May 08, 2007, 02:05 PM
Weight isn't really an issue on these size planes, so I use dual U-BEC's, with a little 3-cell pack (910's for example in the 85" YAK I just assembled). Jeff will modify a matched pair of U-BEC's with extra circuitry to eliminate the "backflow" from one to another. I simply solder a deans plug on ea of them to allow attachement of the little 3-cell pack, and plug them into two seperate slots in the reciever. Redundant rx batteries, redundant regulators, redundant connectors,.. all done in a simple manner.
I would recommend against using anything with a 2-cell pack as input. There simply isn't a lot of "headroom" there, so if you load things a lot, coupled with a lengthy flight, you could drop below the voltage you want at the reciever, which some regulators treat differently. The u-bec's,.. assuming 5 volt units,..will simply go into bypass when the voltage falls below 5V for example. The YAK I mention is using 4 digitals of 192 oz/in torque, and one large digital (rudder) of close to 300 oz/in torque. I can fly two 8 minute flights and put back just over 200mah into each of the 910mah 3-cell rx packs. I would generally go longer than 8 minutes, as I only use about 3000 to 3500 of the 5000mah in the power system pack, but the plane is fairly new and I like to "sneak up" on maximum flight times.
AggieFlyer
May 08, 2007, 04:50 PM
For planes upto 50-75cc size, I really like the regulators from Fromeco... You can order them with Deans on the input and multiple JRs for output to the receiver.
http://www.fromeco.org/aregulators.htm
If you want to have an on/off switch, then consider the "Super Regulated Reliaswitch"
http://www.fromeco.org/asuper%20reliaswitches.htm
hermperez
May 30, 2007, 11:35 PM
no regulator needed if you use 2 A123 lipo cells..
F1 Rocket
May 31, 2007, 03:23 PM
I have had good results with the 6 volt version of these:
http://www.espritmodel.com/index.asp?PageAction=VIEWPROD&ProdID=5710
I use a 2s 1500 lipo to power the system and will put back 800-900ma after 4 8ish min flights. This is flying a 74" EF Yak w/5 300 in/oz digitals. With all 5 servos loaded the system voltage is never below 6 volts even after 4 flights.
Danny
BoneDoc
Jun 09, 2007, 08:58 AM
Gary,
Where do you get that BEC? I'd be really interested in getting one that will eliminate back flow.
Despite that, you still use a separate receiver battery though?
ElectRick
Jun 09, 2007, 02:04 PM
Gary,
Where do you get that BEC? I'd be really interested in getting one that will eliminate back flow.
Despite that, you still use a separate receiver battery though?
He mentioned the name Jeff, so I'm thinking that means Jeff Meyers of Koolflight Systems.
Rick
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