Stepper motor main circuit

 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

Stepper motor main circuit mainly includes the drive circuits and logic control circuit of two parts. Driving circuit power single phase motor price using 28 V, voltage Fan Si 4.5 ~ 40 V, improve the driving voltage can increase the output of the torque motor in the high frequency range, the voltage selection according to usage. VMB, VMA for step motor drive power supply pins, should access ceramics decoupling capacitors and electrolytic capacitor voltage regulator. OUT_AP, OUT_AM, OUT_BP, OUT_BM pin motor phase 2 output interface, respectively, due to the internal integration the fly-wheel diode, the four outlets without external like Toshiba 8435 driver chip diodes, thus greatly reduce the circuit board wiring space. The NFA, NFB is respectively A and B phase motor drive current largest define pins, maximum current calculation formula for the IOUT = 0.5 (A) (V)/RNF (Ω), if the predefined motor each phase of the maximum driving current of 2.5 A, take RNF = 0.2 Ω, PGNDA, PGNDB, SGND is www.dongfeng-motor.com respectively A and B phase motor drive and logic power supply pins. Power supply for 5 V logic control circuit, VDD power supply pins for logic, should be connected to the decoupling capacitor and bypass capacitor reduces interference noise.

Stator Motors Rotor
Specifications
1. 20 years manufacturing experience

2. competitive price,high quality

M0, PROTECT the working status and over-current protection light; RESET to RESET chip, low level effectively; Capacitance of the OSC receive size determines the frequency of chopper, recommendation 100 ~ 1 000 pF, chopping frequency is 400 ~ 44 kHz; M2 and M1 set pins for segmentation, external dial the code switch can be set different subdivisions, such as the step, half step, 1/8, 1/16 segment segmentation. Because of the step motor at low frequency, vibration is big, the noise big shortcoming, need to solve the segment. Stepping motor subdivision control, in essence ac motor is through the control of the stepping motor in the exciting winding current, make the stepping motor for the synthesis of internal magnetic field uniform circular rotating magnetic field, so as to realize the segmentation of stepper motor step Angle. Under normal circumstances, the synthesis of magnetic field vector amplitude decide the size of the step motor rotation torque, the Angle between the adjacent two synthesis of magnetic field vector size step determines the size of the pitch Angle. DCY2, DCY1 external dial the code switch setting current attenuation mode lamination (0, 25%, 50%, 25%), used to meet the needs of the different step motor. Due to the motor itself, power supply conditions and other factors such as pulse frequency, the influence of step motor may produce high-frequency noise, attenuation model through the current Settings can reduce or even eliminate the noise. Figure 3 shows the attenuation model of 0 and 50% when the change of the coil current, but waveforms has obvious improvement.