Alexmos Gimbal and Power Supply

[bunnygirl80]

Hiya,

I';m trying to work out the best way to power my DesireRC alexmos controller board.

DesireRC';s website says that the best way is via a separate 3s battery, but this weighs 45g and I hate carrying unneeded weight. It also says the alexmos board can accept input up to 14.8 volts, but they don';t recommend more pushing in more than 12v.

My question is...

1. My tbs has a core chip set to 12v output for the FPV camera and 12v output for the VTX. So, I';m already using both these 12v supplies. IS IT OK for me to tap into one of these 12v output and use it to power my alexmos board?

OR

2. Do I need a 12v Voltage Regulator 11g soldered onto the bottom plate 16+v output.

OR

3. Is a separate battery the better option.

Thanks for your help.

[Balders]

I can';t see the controller as drawing a lot of current so I should imagine it';s ok to tap into your existing 12v feeds.

I bought a 800mah 3S just to power my gimbal, as I';m lucky in that weight is not a major issue, and JST plug fits straight to my board (rctimer martinez)

http://www.giantshark.co.uk/gens-800mah-3s1p-lipo-battery-p-407313.html

[MOFO64]

82g for 1000mah


http://www.giantshark.co.uk/gens-1000mah-lipo-battery-p-406460.html

[SimonS]

The motor drivers on the board are rated for upto 2A each which is way too much for the TBS Core.
The DesireRC boards are a bit different form others with built in Bluetooth etc but all the other boards run happily off 4S.

[bunnygirl80]

Thanks for all your input guys.

What do you all think to a voltage regulator from the main battery. I am running on a 4s 4000.

Thanks.

[steve fh]

I';ve been wondering this as well as i';m about to buy a brushless for the new gopro and, i';m keen to avoid any extra weight.

Can some one clarify for me that the power fr the motors comes via the control board

[ChrisH]

Having just got an Alexmos board (bit of British support) the power connector on the board as standard is for a 3S balance plug! I';m sure there are connections that can be soldered on for just a + and - wire. Doesn';t this indicate that it can be powered from the flight battery if 3S without problems?

I hope so!

[bunnygirl80]

Having just got an Alexmos board (bit of British support) the power connector on the board as standard is for a 3S balance plug! I';m sure there are connections that can be soldered on for just a + and - wire. Doesn';t this indicate that it can be powered from the flight battery if 3S without problems?

I hope so!

Hi Chris,

Although it powered via a 3S balance lead you can power it using the + and - of the balance lead (i.e. the two outer cables). I have just purchased a volt reg 12v which I will connect this way. I';m reluctant to toake power from the board as this is 16v and the alexmos shouldn';t have more than 12v.

Stef