Hi to all, I'm new in the forum, so thanks in advance for the help.
I recovered from an old printer a bipolar stepper motor, I think that volt necessary is 24V and from section of the cables I think 250mA.. So I'd like to drive with L298 and L297.. I built this circuit and I've connected to 5V and 12V, can I do this? Or I need 24V for the motor? Whitout the stepper, on phases I see 0V 12V 0V 12V, right! in the start condition.. But if I connect the stepper, it begins to buzz, and on phases I see 6V 6V 6V 6V.. Why?