Timeline for Input rated current for easydriver 4.4
Current License: CC BY-SA 3.0
8 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Feb 22, 2013 at 7:46 | comment | added | World | thanks a lot for your valuable help. Just being a hobbits i really need help from experts. I also found a piece of information about current in schmalzhaus.com/EasyDriver. The maximum current i can fed is 750mAx2 (for two coils of the motor) = 1.5A. I am thinking of running 4 Easydriver in parallel circuit with power supply of 12V/2A (500mA per stepper motor). Since current gets distributed in parallel circuit, it should not be a problem. | |
| Feb 21, 2013 at 13:50 | comment | added | PeterJ | @World, it shouldn't draw more current than it needs for the motor, so while you shouldn't use a motor that needs more than 750mA of current at the operating voltage the amount of current the supply can deliver shouldn't matter. For example if you connect a small 12V motor to a car battery that can probably deliver over 100A all would be fine. | |
| Feb 21, 2013 at 13:39 | comment | added | World | One more question. Shouldn't i exceed 750mA input current for Easydriver although it is output current from Easydriver ? | |
| Feb 21, 2013 at 12:29 | comment | added | PeterJ | @World Running at almost twice the voltage would have put it close to the current limit, but it may be that only some windings have fused together so it will still operate at 6V. So your motor may stil be generally operational but damaged and only work at the lower voltage. | |
| Feb 21, 2013 at 11:34 | comment | added | World | At first i tried with 6v battry pack (4xAA battry); both driver and motor worked fine. Later i connected 20V/30A power adapter. It did not show any problem at first, but after sometime the IC started giving smoke. I tried the motor with another driver (powered by 6v battery pack) and it worked fine. | |
| Feb 21, 2013 at 10:17 | comment | added | World | Now, i realize that i am real stupid to feed 20V when the stepper is 12V. However, easydriver is capable of taking voltage upto 30V. I am wondering why driver got burnt not the motor ? | |
| Feb 21, 2013 at 9:44 | history | edited | PeterJ | CC BY-SA 3.0 |
added 194 characters in body
|
| Feb 21, 2013 at 9:39 | history | answered | PeterJ | CC BY-SA 3.0 |