3.5A @ 40VDC output Microstepping Drive with Oscillator
The 3540 MO step motor driver contains a microstep phase sequencer, two switching ampliers, and optoisolation circuits. This driver also includes an automatic feature to lower motor current anytime the motor is left at rest for more than one second. The ampliers regulate motor current by chopping at a constant, inaudible frequency. Phase current is selected from 32 levels by a DIP switch. The 3540 MO is a PC board mounted on an aluminum angle heat transfer chassis. Mating head sink is available for applications where the drive cannot be mounted to a heat sinking surface.