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Power Consumption

chris5

October 22, 2014 06:55

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Hi,

I plan the device for my home automation use. For me low power consumption is essential. How much is the power consumption of HifiBerry Amp at 12VDC?

Best regards
Chris5

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3 comments

• 0
  
  HiFiBerry team October 22, 2014 09:26

  Hi Chris,
  
  power consumption of the Amp is driven by output power. Without anything running on the Raspberry Pi and no sound output at the Amp you can expect about 200mA-250mA current. Depending on the use case and output volume this can increase up to 2A.
  
  Best regards
  Daniel
• 0
  
  chris5 October 22, 2014 09:48

  Hi Daniel,
  
  do you know the quiescent current separated for the Amp Module at 12V? I suppose 25 to 75mA. Is there a powerdown mode at the HifiBerry Amp?
  
  Thanks in advance
  Chris
• 0
  
  HiFiBerry team October 22, 2014 10:14

  Quiescent current of the Amp is <40mA. However as the Amp also powers the Raspberry Pi, the quiescent current will always be higher then this in a real application. The biggest part of the quiescent current will come from the Raspberry Pi.
  
  Best regards
  Daniel