DC Motor Starter

Discussion in 'General Electronics Chat' started by shreeram, Oct 24, 2013.

  1. shreeram

    Thread Starter New Member

    Nov 29, 2012
    29
    1
    hello everyone,
    I bought a new 12v dc water pump for my project . When i directly connect it to a battery it dont work... :( there was a small 1second vibration thats is .. please help me to drive that motor with simple circuit as possible.
     
  2. #12

    Expert

    Nov 30, 2010
    16,355
    6,852
    If this is simply a 12 volt motor that will not run when connected to the proper power supply, no amount of circuits will make it run. Please tell whether this is just a 12 volt motor or something else.
     
  3. BillB3857

    Senior Member

    Feb 28, 2009
    2,400
    348
    If it is a centrifugal pump and the polarity was not correct, you may have unscrewed the impeller from the motor shaft causing it to bind in the housing.
     
    #12 likes this.
  4. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,571
    2,381
    Unless it is a pulse pump, similar to the old style automotive petrol pump, it behaves this way if you had the outlet blocked, however, a short burst until the pressure was met and shut off.
    Max.
     
  5. crutschow

    Expert

    Mar 14, 2008
    13,056
    3,245
    What battery are you using?
     
  6. shreeram

    Thread Starter New Member

    Nov 29, 2012
    29
    1
    Its a 12v DC motor
     
  7. shreeram

    Thread Starter New Member

    Nov 29, 2012
    29
    1
    I am using 12dc battery. I tried in both polarities possible..
     
  8. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,571
    2,381
    But what is the pump technology?
    Impeller? diaphragm or pulse? Etc?
    Did you measure the resistance across the leads?
    If left disconnected does it react the same when power is reapplied?
    Max.
     
  9. shreeram

    Thread Starter New Member

    Nov 29, 2012
    29
    1
    The problem was there was nothing written upon the motor.so i tried by increasing the current by keeping 12v Dc constant. When it was about 2Amps IT WORKED ... THANKS EVERYONE for reply
     
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