| ??? 12/02/08 05:37 Read: times |
#160481 - ULN power and dual coil powering Responding to: ???'s previous message |
Hi again... I read in an website a ULN2003 can draw 500ma... this is by output or total?
Also, I was making some tests with a motor, I think I got it from and old 5 and 1/4 diskette drive (12v, 48ohms)... I was trying to get more torque and/or speed from it, the best result I got was with 2.5msec by step... I also tried to achieve what I want powering 2 consecutive coils at same time but this dont worked very well with this motor, its normal to happen this it some motor models? Thanks. PS: This is one of my first experiments with stepper motors, so excuse me if I'm saying something wrong. |
| Topic | Author | Date |
| Stepper Motor getting hot!? | 01/01/70 00:00 | |
| Yes.... | 01/01/70 00:00 | |
| Powering coils | 01/01/70 00:00 | |
| circuit | 01/01/70 00:00 | |
| IF and only IF the motor has enough static holding torque | 01/01/70 00:00 | |
| I'm a donkey! | 01/01/70 00:00 | |
| ERRR | 01/01/70 00:00 | |
| ULN Ganging? | 01/01/70 00:00 | |
| only one will pull | 01/01/70 00:00 | |
| ULN power and dual coil powering | 01/01/70 00:00 | |
| What does the Data Sheet say? | 01/01/70 00:00 | |
| There's help available | 01/01/70 00:00 | |
| did you read my earlier post? | 01/01/70 00:00 | |
| Strange steps | 01/01/70 00:00 | |
| Jones discusses this very motor | 01/01/70 00:00 | |
| consider this... | 01/01/70 00:00 | |
| Can a stepper motor make different step sizes? | 01/01/70 00:00 | |
take a close look at this website! | 01/01/70 00:00 |