_ stepper motor precision of two phase four wire stepper motor speed
by：Zhenyu
2020-10-26
Power circuit adopt high power double H bridge circuit, use P channel power MOSFET IRF9540 half bridge, half bridge use n-channel MOSFET IRF540 power.
Stepper motor driver stepper motor can't directly to the power frequency ac or dc power supply work, and must use a dedicated driver, as shown, it is controlled by pulse generating unit, power drive unit, protection unit, etc.
Figure midpoint line surrounded by two units can be done with microcomputer control.
So that we can satisfy the drive the bus voltage is 85 v, the phase current of 7 a stepper motor.
And take this kind of structure, drive circuit can be simplified,
DC)
The design of the power supply, because don't need multiple isolated drive power, can make the bus power and drive power altogether.
P channel for the bridge power ( Refers to the object of the work done in a unit time) MOSFET gate drive take composed of complementary NPN and PNP transistor drive circuit, make the MOSFET input capacitance charging and discharging circuit of resistance are small and accelerated the on-off of power tube. And through and a 3 v zener diode, made when the bus voltage is higher clamping MOSFET gate drive voltage, in order to avoid the over grid breakdown voltage source.
for the bridge under the N channel power ( Refers to the object of the work done in a unit time) MOSFET gate drive take simple NPN drive amplifier circuit, such reformed the opening of the MOSFET process, and reduces the drive power of power; And the transistor's base and emitter diode in parallel, thus provides the input capacitance discharge circuit, accelerated the turn-off process of power tube.
when driving circuit to drive the power MOSFET directly caused by driving power MOSFET quickly opened and shut off, this is likely to cause driven power MOSFET drain-source electrode voltage oscillation. In this way, a lead to radio frequency interference; Second is likely to cause power MOSFET of suffer from excessive and broken down. To solve this problem, in the drive power MOSFET gate and drive circuit in series between the output of a 5 non-inductive resistor. On the concrete, the second half of the bridge driving circuit as shown in figure 3 and 4 respectively. L297 output with chopping signal of INH, INH2, and temporal logic signals A, B, C, D after appropriate combination of logic gate, PWM and PWM2 signal, as the chopping signal input terminal of the driving circuit. Stepper motor is a kind of induction planetary gear motor, its working principle is the use of electronic circuit, direct current (dc) into time-sharing power supply, multiphase sequential control current, in this current for stepper motor power supply, step planetary gear motor to work properly, is time-sharing power supply for step motor drive, multiphase timing controller. Stepper motor drive can be controlled by controlling the pulse number of angular displacement, so as to achieve the purpose of accurate positioning; As well as by controlling the pulse frequency to control planetary gear motor rotation speed and acceleration, so as to achieve the purpose of speed regulation and positioning.
Everyone who has a types of gear reducers wants it to look planetary gear motor. However, in order to achieve that, it normally involves investing in a types of gear reducers electric motor suppliers. Hangzhou Xiaoshan Zhenyu Transmission Co., Ltd. can offer you the best solution.
We want to continue to organize Zhenyu to make it more efficient and profitable so that both, our clients and our employees can get more out of their time.
If you are looking for best product, then here are some product like electric motor suppliers, planetary gear motor and types of gear reducers in various styles which will surely meet your demand. Visit Zhenyu Transmission to know more!
P channel for the bridge power ( Refers to the object of the work done in a unit time) MOSFET gate drive take composed of complementary NPN and PNP transistor drive circuit, make the MOSFET input capacitance charging and discharging circuit of resistance are small and accelerated the on-off of power tube. And through and a 3 v zener diode, made when the bus voltage is higher clamping MOSFET gate drive voltage, in order to avoid the over grid breakdown voltage source.
for the bridge under the N channel power ( Refers to the object of the work done in a unit time) MOSFET gate drive take simple NPN drive amplifier circuit, such reformed the opening of the MOSFET process, and reduces the drive power of power; And the transistor's base and emitter diode in parallel, thus provides the input capacitance discharge circuit, accelerated the turn-off process of power tube.
when driving circuit to drive the power MOSFET directly caused by driving power MOSFET quickly opened and shut off, this is likely to cause driven power MOSFET drain-source electrode voltage oscillation. In this way, a lead to radio frequency interference; Second is likely to cause power MOSFET of suffer from excessive and broken down. To solve this problem, in the drive power MOSFET gate and drive circuit in series between the output of a 5 non-inductive resistor. On the concrete, the second half of the bridge driving circuit as shown in figure 3 and 4 respectively. L297 output with chopping signal of INH, INH2, and temporal logic signals A, B, C, D after appropriate combination of logic gate, PWM and PWM2 signal, as the chopping signal input terminal of the driving circuit. Stepper motor is a kind of induction planetary gear motor, its working principle is the use of electronic circuit, direct current (dc) into time-sharing power supply, multiphase sequential control current, in this current for stepper motor power supply, step planetary gear motor to work properly, is time-sharing power supply for step motor drive, multiphase timing controller. Stepper motor drive can be controlled by controlling the pulse number of angular displacement, so as to achieve the purpose of accurate positioning; As well as by controlling the pulse frequency to control planetary gear motor rotation speed and acceleration, so as to achieve the purpose of speed regulation and positioning.
Everyone who has a types of gear reducers wants it to look planetary gear motor. However, in order to achieve that, it normally involves investing in a types of gear reducers electric motor suppliers. Hangzhou Xiaoshan Zhenyu Transmission Co., Ltd. can offer you the best solution.
We want to continue to organize Zhenyu to make it more efficient and profitable so that both, our clients and our employees can get more out of their time.
If you are looking for best product, then here are some product like electric motor suppliers, planetary gear motor and types of gear reducers in various styles which will surely meet your demand. Visit Zhenyu Transmission to know more!
