The Shop > Electronics & IC Programing
getting started with electronics
Bernd:
--- Quote from: Rob.Wilson on December 28, 2009, 05:00:34 AM ---Bernd ,,,not the wrong question to ask ,,but a good one ,,i have two projects in mined first ,,i have a couple of 12v DC motors that i would like to use for power feeds on my mill/drill ,,so i would like to make some thing to control the speed of the motor
Many thanks Rob
--- End quote ---
Rob,
A good place to get ideas about controlling DC motors to go "outside the box" and look at toy robotic drives. They use motors to drive the robot. They have what's called and "H" bridge to drive the motors. Consists of 4 drive transistors and the supporting circuitry. I know sounds complicated. If I could find my book on this subject I could do a C-o-C for you. But this is one place you can start.
As far as buying a kit and building that, I would instead buy a book that has some simple circuits in it and start there. Like I said before I killed a lot of electronics components learning. Intergrated chips and transistors can easily be damged.
I learned about electronics with my interest in model railroading. I built some simple circuits that were written up in the popular model magazines. Next thing I knew I was into designing circuit boards. Before I knew it I had another hobby - electronics.
Another piece of advise here is try to learn just one segment of electronics, like DC. Then go on to the next and so on. Good luck.
I'll see if I can find my book on robotic drives and help out with any questions you may have.
Bernd
Bernd:
Rob,
I found an example of an H - bridge motor drive. Also discovered that all my electronic books are stored at a relatives attic, at least that's what the wife says.
Anyway here it is:
John Rudd:
Rob,
EPE magazine does some 'Teach in series' stuff on cd...if thats the way you want to go...
As for the Velleman kit, I built one of them and gave it away to a very good friend of mine for his detailing sander...The kit although it is good and makes use of good electronic priciples wasnt powerful enough for my use...A controller for my wiper motor based X axis drive...( I'm having a rethink on this project :scratch: )
Shout up if you need help.. :thumbup:
Rob.Wilson:
Cheers Lads ,,, allot of great advice he ,,,,i will not get the electronics lab ,pleased i asked
John ,, i did have a look into trying to get on some sort of couse ,but was unable to fine any local collages doing electronics and i could not fined any distace learning courses either,,they just do electrics house wiring that sort of thing
Andy,, I do have most of the kit you list ,but i will have to get a smaller end for my soldering iron and i don't have a power supply, thats some thing i will have to get ,or modifi a comuter power supply ,into a bench one if possible
Dave , :lol: :lol: :lol: :lol: :lol: that is allot of beer ,,you made a very good point ,Without an effective grasp of the basic Ohms Law etc., nothing will make any sense,,I could not agree more ,i would like to no why ,how and were ,,not becouse it just dose
Bernd ,made another good point ,,try to learn just one segment of electronics, like DC. Then go on to the next and so on.
great advise lads ,i will start at the begining and hopefully work forward ,,no dought i will fry a good few parts on the way ,there is a local Maplins not far from were i live so i will go and have a look in there for some books and a small starter project
Many thanks Rob
Rob.Wilson:
Hi John
Sorry cross post ,,, the motors i have are car power steering motors ,it was seeing your X axis drive that gave me the motivation to have a go ,are you going to make a new controller ?
Thanks i will Shout up
Regards Rob
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