Stepping Motors
Stepping Motors - Bipolar Hybrid Systems
We're experts in bringing your ideas to life. From initial prototype, to end product.
The details explained
Bipolar Hybrid Stepping Motors
A stepper motor uses a permanently magnetised rotor and an stator formed from two electromagnetic coils. The coils can be energized in four configurations. Switching from one configuration to another causes the rotor to "step" and align its magnets with the energized coil. Cycling through the four configurations in a certain order will cause the rotor to steadily move in one direction.
"Hybrid" stepper motor construction combines the two methods of rotor manufacture: variable reluctance and permanent magnet. This combined approach gives a great density of poles than either predecessor, increasing both resolution and torque.
Pull-in torque is the maximum load under which a motor will accelerate from rest to a given speed. Pull-out is the maximum torque that the stepper motor can apply at a given speed. If torque or speed exceeds this curve the motor will lose synchronism and begin to "miss steps".
The resolution of a stepper motor can be increased via microstepping. Instead of switching from one position to the next, the voltage applied to the destination coil is gradually increased. This gives smooth motion at the expense of torque. Conversely, a chopper drive will apply a spike of voltage at the start of each step, this reduces the time needed for current to start flowing in the destination coil, allowing the rotor to align in time for the next step even at a high speed under heavy load.
Find out more
Explore our full catalogue
SPEAK TO OUR TEAM
Want to know more about our hybrid stepper motors? Give us a call
If you have a project that needs power, we're the power within. Please speak to our experts today.