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Zedboard Power Supply

powarrm

Will the Zedboard work with a 9V-1A power supply?

 

The original power supply provided with the Zedboard is a 12V-5A supply. But since I do not have the original supply with me right now, I wanted to know if the 9V-1A supply that I do have will work?

 

(The Zedboard uses the MAXIM 8686 regulator which has an input range of 4.5 - 20V so I would think that a 9V input should be fine, but I am not sure about the current rating. Can the Zedboard draw more than 1A?)

 

Thank you.

  • 0

    From a Vin standpoint, the ZedBoard ONLY would run off of a 9V supply.  However, ZedBoard was designed to support up to 60W (mostly FMC) and your supply will only provide 9W.  Having an FMC attached would definitely not work because the FMC Vin is 12V and is tied directly to the board input.

    Basically i can't guarantee operation at 9V, but it is theoretically possible.  The compensation on the 8686 is also designed for 12V in. 

    I would not recommend using a 9V input supply, however you may be able to use one in a pinch as long as you had no peripheral boards (FMC or PMODs) connected to the system.  Again I can't guarantee it will work flawlessly.  You are reducing the input power from 60W available down to 9W and operating at a lower voltage which could affect the stability and component stress on the 8686 circuit.

    I would say the risk is relatively low with no other boards connected, but I'd be leery of doing anything too taxing on the board.

    Thanks

    Chris