DC motor  as a DC Generator ????    


                             Hey guys in this article I am going to explore you how to use a DC motor as Generator. Normally a brushed DC motor can be act as a Generator and also a BLDC motor can be act as a Generator, but a BLDC motor cannot be act as a DC Generator it can be act as a AC Generator.


 Little confusing right??? 


                            Well basically a BLDC motor is not a actual dc motor it is a three phase ac motor actually the BLDC motor is controlled by an esc (aka Electronic speed controller) which converts the DC power input to an three phase voltage or current with reference signal which is the control signal. OK NOW come to the point here I am driving a dc motor from an old cd drive with an bigger dc motor which is taken from an old tape recorder. the tape recorder dc motor is quite bigger than the cd drive motor. so what I am going to do is i connect both of the motor's shaft and I power the bigger dc motor that is the dc motor which is taken from the old tape recorder with a 12V battery then i connect the wires of the smaller motor that i taken from the old cd drive to a load or an led or connecting it to the multimeter to check the voltage. For connecting the two shafts of the motor I used an old refill pen empty ink cylinder I measured the length and cut it according to the length and connected the two shafts of the motor.






                After powering the motor with the 12V battery I measured the voltage of the smaller DC motor that is the motor taken from the old cd drive which reads almost 12V at full speed but after giving load, the speed of the motor drops and also the output voltage from the generator also drops. for example if I connect an LED to the output of the generator the output voltage drops to the operating voltage of the LED (that is the 2V minimum voltage for the LED).


                    Funny thing is that If I short circuit the output voltage of the generator nothing happens even a small spark not appeared but the speed of the motor drops very low........


                        If you have enough time I recommended to do this If you have needed components and parts.


                            Have fun :)


Hope you guys learnt something New !!!!!


See you again in the Next Articles Bye.....!!!!!!!!