LDO & battery powered devices

Discussion in 'General Electronics Chat' started by sharanbr123, Oct 24, 2014.

  1. sharanbr123

    Thread Starter Member

    Sep 29, 2014
    49
    0
    Hello All,

    One of the quoted use of LDO is for battery powered devices where output of battery can vary depending on whethe it is fully charged or not. Here LDO is used to supply constant voltage to the device based on variable input voltage from the battery. Is my interpretation correct?
     
  2. crutschow

    Expert

    Mar 14, 2008
    12,974
    3,220
    Where is "here"?
     
  3. ericgibbs

    Senior Member

    Jan 29, 2010
    2,499
    380
    hi 123,
    Look at this pdf of battery type and discharge curves, adding two or more batteries of the SAME type will increase the overall voltage.
    http://www.mpoweruk.com/performance.htm

    A LDO regulator would be chosen to suit the battery type and terminal voltage and required current.
    E
     
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