| ??? 05/30/07 14:03 Read: times |
#140063 - Consult the stepping motor datasheet Responding to: ???'s previous message |
The stepping motor datasheet should provide sufficient information about the current and voltage required to drive it. IIRC, the ULN2003 provides a current gain on the order of 1000, so, in order to provide a collector current of about 1 ampere, you must provide a base current of about 1 mA. The 805x, in nearly any version, should be capable of providing that much current at its outputs. The ULN2003's purpose, incidentally, is to drive high-voltage loads, up to 50 volts, so it will shift the voltage levels for you. Its datasheet will clear that up for you.
Consult http://www.cs.uiowa.edu/~jones/step/ for additional information on how to operate stepping motors. You'll find very good examples, etc. RE |
| Topic | Author | Date |
| stepper motor voltages | 01/01/70 00:00 | |
| any schematics? | 01/01/70 00:00 | |
| Something not right | 01/01/70 00:00 | |
| Consult the stepping motor datasheet | 01/01/70 00:00 | |
| not really | 01/01/70 00:00 | |
| experience ... | 01/01/70 00:00 | |
| Discontinued? | 01/01/70 00:00 | |
I do not recall which manufacturer | 01/01/70 00:00 | |
| What is type of your motor? | 01/01/70 00:00 | |
| pay attention to the specifications | 01/01/70 00:00 | |
| Alternatives | 01/01/70 00:00 | |
| There are more general places to look | 01/01/70 00:00 | |
| Everything in one IC | 01/01/70 00:00 |