Introduction: DC Motor As a Generator

The DC motor is a ready made generator that will generate electricity. All that you have to do is turn the Axle of the generator using a mechanical outside source of energy .

To show that I dismantled a damaged HP printer and take  the  DC motor that responsible for paper out shown in pictures and connect it  to LED array ,  4 LED connected in a specific polarity and the other four LED connected in reverse polarity ,so when the shaft rotate on clockwise ,4 LED will be on due to  forward bias and the other  off due to reverse bias  and vise versa  in case of anti- clockwise rotation.

.

Comments

author
beeferer (author)2017-09-02

I believe it will produce a DC current.

author
rohan lawande (author)2017-02-11

So when it is used as generator will it produce AC or DC?

author
hari sundar pyda (author)2015-10-19

can this energy be stored in a battery

instead of rotating it can we use a shaft and rotate the gear WHILE WALKING

author
moodys2 (author)hari sundar pyda2016-10-18

offcourse this energy can be stored in a battery using Diodes.

author
shomas (author)hari sundar pyda2015-10-20

"can this energy be stored in a battery" Yes.

I would suggest a bridge rectifier whether you spin this in either just one or both directions because it will also functions as a blocking diode to prevent your batter from discharging into the motor.


Instead of a battery, you might consider more efficiently storing the energy in capacitors that can cycle many more times than rechargeable batteries. Although capacitors will store less overall energy, they can have much greater power output than batteries of the same size because of their extremely low internal resistance.

Furthermore voltage regulation is strongly recommended to prevent over charging battery or capacitors.

author
NeeharikaK (author)2016-03-16

can i use starter motors as generator when the shaft is rotated..

author
elishas (author)2015-03-19

Thanks exactly what I wanted to know!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

I'm going to add it to my windmills!

author
jinn13 (author)2014-11-03

The motors found in printers are often stepper motors, and will generate more electricty at low speeds than the kinds you find in lets say a remote control car. Those are meant for higher RPMs when used for power generation.

author
GyroGearLoose47 (author)2013-06-23

Mr. EE, I was just a Tech here, there, and yonder. Thanks for your efforts and full speed ahead on some more ibles. I try to always minimize the negative and Focus on the positive. Every ible has some positive about it. Critics please pay attention, May my words always be tender and soft, that makes them easier to swallow.Gyro.

author
cmdrbly (author)2013-05-05

I didnt learn anything

About This Instructable

49,913views

46favorites

License:

Bio: Electrical Engineer
More by Husham Samir:Using MikroTik Router Board 433 & Arduino To Control Two LEDsArduino Keypad Door LockTemperature Data Logger
Add instructable to: