Coupling DC motors

   · Voltage produced by a single motor with wind turbine is not sufficient enough to charge up 12V DC battery.

     ·  In this case coupling DC motors are introduced. There are six numbers of couplings that are being connected in series connection to get higher voltage. Need a motor with battery supply of 6V to drive another motor. In this case it became DC generator. The motor that is used to drive is a replacement of wind source.

     ·  By using this method, the motor that is driven will produce higher voltage which is approximately 1.5V each coupling compared to a single motor with wind turbine which only produce only 0.14V.

  · The reason why every coupling has its own battery supply of 6V instead of using one supply to all six couplings is because voltage drop does not occur. Using one supply to all six couplings will produce voltage drop and in this case some of the motors do not have sufficient voltage to drive another motor.