cell phone project

Discussion in 'General Electronics Chat' started by Visionmpaired5, Dec 13, 2012.

  1. Visionmpaired5

    Thread Starter New Member

    Dec 13, 2012
    2
    0
    Can the charging port of any smartphone be used to power A periphial device?
     
    Last edited by a moderator: Dec 15, 2012
  2. Audioguru

    New Member

    Dec 20, 2007
    9,411
    896
    The "charger" for a phone is a power supply, not a charger. It powers the charger circuit inside the phone. It can power ANYTHING within its maximum output current rating.
     
  3. Visionmpaired5

    Thread Starter New Member

    Dec 13, 2012
    2
    0
    How can I find out the maximum output rating of any given cell phone through its USB cord?
     
  4. BillB3857

    Senior Member

    Feb 28, 2009
    2,400
    348
    The cell phone will not provide power out of its USB cord.
     
  5. vortmax

    Member

    Oct 10, 2012
    103
    18
    don't most newer android devices support USB host mode? Shouldn't that require the port to put out 100 mA @ 4.4V to power peripheral devices?
     
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