Stepper motor current attenuation model

 Y series best cast iron three phase induction motor
Specifications
1. 20 years manufacturing experience 
2. 12 months guarantee 
3. low noise and temperature rise 
4. high starting torque 
5. AC Voltage: 220V/380V, 380V/660V,400V/690V,220V/400V

Stepping motor subdivision way now basically is the current segmentation method, the phase current according to the sine wave current point as electric motor 12v 500w segmentation point tangent. Control current at the phase current to achieve segmentation points to control the attenuation, otherwise the message will appear angles overshoot will not accurate stay on view point of electric motor fan cover breakdown. Different attenuation pattern choice of motor speed. When high speed fast, when low speed slow decay. When high speed slow attenuation will appear big vibration and high noise. Low speed choice fast attenuation will lead to serious when a motor is unable to locate. Motor control IC is wholesalemotor.blogspot.com for H bridge by current attenuation on the control of the switch tube model. Slow attenuation high side tube shut, fast attenuation at high and low side pipe is closed. Hybrid damping is first in a quick and then to slow decay, mix proportion of time of decay because of chips and power is not the same.