hi i want to drive two high torque 200 rmp dc motors each with stall current of 800 milliamp and maximum draw of 10 amp per motor can any one advice me regarding this please :)
oh sorry actually the no load current is .8 milliamp i want to be able to rotate each motor in both the directions
well i want to participate here http://www.robotix.in/events/robocop any other advice would g;adly be accepted iam not in a hurry the competition is scheduled to jan 28 2011 any sugessitions !
You might be able to parallel two of the below motor controllers to be within the stall current range of your motors.
thanks zoomkart but i want to make one my self any ideas i worked only with l293d and l298n until now any oyher ideas to acheive this pls help
what is this any ideas ? can i interface it to arduino ? http://robokits.co.in/shop/index.php?main_page=product_info&cPath=1&products_id=17 :-/
what is this any ideas ? can i interface it to arduino ?
It appears to be a relay based motor controller, which probably could be controlled by the arduino. Your asking "what is this" indicates you need to do more research and study of your project and motor controls.
Yes, you could probably interface with the Arduino, but you won't have the speed control you could have with the bridge circuits.
It looks like the control shown is a mechanical relay. It is rated at 10A so I would not use it to control a motor that takes 10A you need to add some margin. So look for something rated at least 15A for each motor.
As this is only a mechanical relay you will only be able to turn the motor on or off there will be no chance of speed control.
The data sheet on the relays themselves are at http://pdf1.alldatasheet.com/datasheet-pdf/view/117655/ETC/RW-SH-106D.html shows you need 6v to energise the coil and the IC on the boards suggest you will easily be able to control it with an arduino. You can of course change direction with a relay, see:- http://www.thebox.myzen.co.uk/Workshop/Motors_1.html
Thanks everybody i found out some info about controlling using mosfets any ideas in using moesfet's????? some info regarding moesfets wopuld be appericiated i tried googling but i couldnt understand much of it !
I'm pretty sure there are some hobbyist R/C designs out there. Useful search terms are H-bridge, snubber, R/C, ESC.
Really, you need to begin with the basics, because that kind of power can blow lumps out of hardware (and you) if you get it wrong.
is this a good choice ? http://library.solarbotics.net/circuits/driver_245.html :-/
For a 10A motor no, it is nowhere like good enough.
If you look at the graphs they are saying 100mA which is 0.1A, which is 100 times less than you need.
oh! but can i go ahead with it?
Well if you want to totally melt the driver chips the first millisecond then go ahead. However if you want to throw money away like that I can think of some charities that would benefit more.
ok might be i would do better if you would suggest me something pls help any moterdriver ic that can have a out put of 10 ampo per chanel i'll eben try to mare one h bridge with mosfets if you help me in that direction
You can try these:- http://www.superdroidrobots.com/shop/item.aspx?itemid=471
Mind you they all look to be the same actual controller.
thanks mike but i’d also like to make a motor controller unit using mosfets any ideas how to make one ? i read everything about mosfets on wikipedia now pls help me i’d like to make one myself
or any one has ideas on using eight 10 amp transistors and making a hbride ic? :-? *h bridge
.... but i want to make one my self - any ideas?
Newbie, I just looked through this thread. Why do you want to make it yourself when you have no conceot? It generally works the other way: You have concept, do not find a matching product, and so you DIY..
DC motor controllers are just a power transistor, which is best switched, or an H-bridge, when you want to turn it in both directions. There are dozens of boards readily available, maybe even hundreds....