Wholesale stepping motor, stepping motor working process pulse signal generation, pulse signal is generally generated by CPU or SCM, general pulse signal proportion is about 0.3-0.4, the higher the motor speed, the greater the proportion.Microprocessors take four-phase stepping motor as an example. There are two working modes of four-phase motor. Four-phase four-step is AB-BC-CD-DA.AB-B-BC-C-CD-D-AB.
Power amplification is the most important part of stepper motor drive system.The torque of a stepper motor at a given speed depends on its dynamic mean current rather than static current (the current on the sample is static current).The larger the average current is, the larger the motor torque will be. To achieve the larger average current, the drive system should try to overcome the reverse potential of the motor.So different occasions to take different driving mode, so far, the driving mode is generally the following: constant voltage, constant voltage series resistance, high and low voltage drive, constant current, fine fraction, etc.
