I don't believe the motor coil coltage is 24V, I suspect your looking at test data that was run at 24V. At 4.5 ohms and 1.5A that would put the coil voltage at 6.75V. So you need to limit the current either via a linear method or switching method (pwm or chopping). If you use a linear method it's going to dissipate around 50W per motor, which is feasable, but.....
Phil, Still too many interests, too many projects, and not enough time!!!!!!!!
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