Machines | How DC motors and universal motors work

videos | at work | information | view | construction

1. awesome
2. Your test rig with the rare earth magnets gave me a great idea for a project. Thanks!
3. Great, awesome, praise full, words are not enough for you brother. Keep it up
4. can u make a video on how battery charges work
5. I thank you for distributing knowledge & in a manner which is understandable without difficulty. May the LORD grant you the sublime wisdom ////aiemen
6. thanks
7. I could use some Motor help. From anyone if they can..... I pulled a small DC motor from an old 7.2v Battery Powered Ryobi Drill that I got from a thrift store, and I'm having a hard time powering it. I'd like to wire it up by plugging it into an outlet and I believe I need an AC/DC adapter. I have tried using a Variable volt 1amp adapter from 1.5v to 15v but it only twitched periodically. I then tried a 9v Battery and it spun up and worked great, so I know the motor's not dead. Using a Multi-meter, it appears to pull 1.7 - 1.8 amps. So I got a 12v 2amp Adapter and it spun for half a second, then stopped for about a full second, then spun. I've only learned about Ohms law about 2 weeks ago, so I'm new at this and having a hard time trying to figure out what kind of power I need to hook this thing up, or how to measure what I need. Am I using too much volts? Is too much volts even a thing? How can I measure what the motor is using when it runs with a battery to determine what kind of Adapter to get?
8. what drill was it?
   (I know Ryobi)
   I meant model
9. merci
10. hi i am trying to connect and use a treadmill motor but when i connect it the motor only wiggles left and right does anyone know what i need to make it spin correctly and also use it with a speed control?
11. Sir if you could have been my college physics professor, I would have got decent gpa!
12. Merci pour les formations
13. Hey Matthias thank you very much vor the explanation ! Now I got it how the electric motors work :). Very nice explanation!
14. I need a magnet
15. Seems like many people are asking questions that they already know the answer to. Like you are trying to test this young mans knowledge or something.
16. In this video th starter itself rotates. If (in a brushless motor) the starter remains static and the magnetic rotor rotates instead, will it produce the same amount of volts and amps as when the starter rotates?
17. Please create a self-generator or gravity 12 volts, because I researched a lot and it is Zec details you
18. Hi Matthias, Im working in a project, I want to build a Rotor Kit, (Machinery Fault Simulator), Im a Mechanical Engineer specialize in vibration, this project need a motor to provide the spin for the entire set, I select this one https://www.grainger.com/product/DAYTON-1-2-HP-Universal-AC-DC-Motor-2M145 but I need to control the speed and if can be possible the ramp rate (acceleration), could you make some comments how can I do it.
19. have you ever considered teaching? you have a gift for it (which many teachers nowadays lack despite knowing the material)
    Excellent Video - like the rest of your videos!!!
20. wonderful explanation. Many thanks