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Ultra96 Hardware Design How to choose a battery to power Ultra96 board
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  • ultra96
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How to choose a battery to power Ultra96 board

jlamp
jlamp over 5 years ago

Hi!

 

I would like to build a robot using Ultra96 board and I would like to know how to choose a battery instead of using the Power Supply Kit.

 

In this UAvnet Ultra96-V2 Powered Turtlebot3 Burger Robotics Demo video I can see a Turtlebot robot using a battery and from this hackster project I have seen that they are using a Li-Po Battery 11.1V 1.800mAh.

 

Are this kind of Li-Po batteries enough to power on the Ultra96 board? Don't I necessarily need 12V?

 

I would like to use 12 Servomotors that works in a range of 4.8V to 6.8V, a camera using a mezzanine board and also DPU IP Core inside the FPGA. I experience some problem when using DPU in the past with Ultra96 board, so is 1.800mAh enough current?

 

Thank you very much and regards!

 

Jorge

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  • bhfletcher
    bhfletcher over 4 years ago in reply to hugohu +2
    The 4A supply is recommended if you need full power supplied to the mezzanine, both USB Device ports, and all the on-board circuitry. If you don't have a mezzanine or supplying power through the USB ports…
  • hugohu
    hugohu over 5 years ago +1
    I don't work with these boards, but I went and looked into the power supply. The board needs 12V @4A. So yeah, you'll need that 11.1 V battery, and somehow conjure 4 amps. Most power banks supply 2.
  • bhfletcher
    bhfletcher over 4 years ago in reply to hugohu +1
    Yes, exactly. If you really want to dig into exactly how much power the SoC is using on the Ultra96, then you can take a look at the XPE http://www.element14.com/community/docs/DOC-92691/l/ultra96xpe201822itempreduceddsps…
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  • hugohu
    hugohu over 5 years ago

    I don't work with these boards, but I went and looked into the power supply. The board needs 12V @4A.

     

    So yeah, you'll need that 11.1 V battery, and somehow conjure 4 amps.

     

    Most power banks supply 2.

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  • bhfletcher
    bhfletcher over 4 years ago in reply to hugohu

    The 4A supply is recommended if you need full power supplied to the mezzanine, both USB Device ports, and all the on-board circuitry. If you don't have a mezzanine or supplying power through the USB ports, then you can use much less.

     

    Bryan

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  • hugohu
    hugohu over 4 years ago in reply to bhfletcher

    Ah, kind of like the Raspberry pi, if you aren't connected to any USB or only sparingly using USB power you can manage a Pi 4 at 2.5A.

     

    Thanks for the clarification.

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  • bhfletcher
    bhfletcher over 4 years ago in reply to hugohu

    Yes, exactly. If you really want to dig into exactly how much power the SoC is using on the Ultra96, then you can take a look at the XPE

    http://www.element14.com/community/docs/DOC-92691/l/ultra96xpe201822itempreduceddsps

     

    This blog from ctammann may also interest you.

    Estimating Xilinx power requirements

     

    Bryan

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  • hugohu
    hugohu over 4 years ago in reply to bhfletcher

    Thank you. If I get a Ultra96 I'll be using these!

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  • hugohu
    hugohu over 4 years ago in reply to bhfletcher

    Thank you. If I get a Ultra96 I'll be using these!

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