atmel motor controller - help needed - Electronic Circuits Projects Diagrams Free

siaug18 · 19th July 2003, 11:10 PM

I need help to design a motor controller that can control 12 motors using an h-bridge and have 8 input sensors ( 6 switches and 2 for opto sensors) i would like to use the at90s8515-8jc fro atmel but i have been unsucsessfull. please could some one help. if anyone knows of a website that has a circuit diagram on it that might help or could point me in the right direction i would be so thankfull
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siaug18@aol.com

MarkWeston · 21st October 2003, 03:10 PM

I used L293 IC H-bridge chips to drive the motors on my little runabouts, and it's tremendously easy to make it work. You need to I/O pins per motor, one for direction, one for motor on/off and this one can be PWM'd for speed. Do a google search on the L293 and you're bound to come across several circuit designs. One L293 can run two small motors. Of course, we're not talking windshield wiper motors here, at under an amp each. If you need higher power, you'll need to look at other H-bridge chips, or building your own mosfet h-bridge. Of course, there are quite a few firms that make motor controllers as well.

Good luck

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19th July 2003, 11:10 PM	(permalink)
siaug18	atmel motor controller - help needed I need help to design a motor controller that can control 12 motors using an h-bridge and have 8 input sensors ( 6 switches and 2 for opto sensors) i would like to use the at90s8515-8jc fro atmel but i have been unsucsessfull. please could some one help. if anyone knows of a website that has a circuit diagram on it that might help or could point me in the right direction i would be so thankfull --------- siaug18@aol.com

21st October 2003, 03:10 PM	(permalink)
MarkWeston	I used L293 IC H-bridge chips to drive the motors on my little runabouts, and it's tremendously easy to make it work. You need to I/O pins per motor, one for direction, one for motor on/off and this one can be PWM'd for speed. Do a google search on the L293 and you're bound to come across several circuit designs. One L293 can run two small motors. Of course, we're not talking windshield wiper motors here, at under an amp each. If you need higher power, you'll need to look at other H-bridge chips, or building your own mosfet h-bridge. Of course, there are quite a few firms that make motor controllers as well. Good luck __________________ Mark Weston Toronto, Ontario, Canada markweston@rogers.com