电机驱动部分采用的是专门的驱动芯片来实现正反转控制。
The motor drive part is used in specialized drive chip to achieve positive control.
通过电机的控制带动直线运动机构进行运动，进行简单的正转，反转，停车等操作。
Through the control of motor driven linear motion body movement, is a simple turn, reverse, parking and more.
这一特殊结构使得正反转电机的驱动问题尤其是输出转矩平衡问题显得尤为突出。
Based on the single DC motor model, the mathematic model of dual-motors was established to analyze the problem of output torque balance of dual-motors.
子顺序同时控制两个直流电机正转或反转，从而使小车行进、左转、右转或前进，最终使小车沿路面的黑色轨迹运动。
Procedure and the control of two dc motor are turning or reverse, thus making the car ahead, turn left, turn right or retreat, eventually make the black car along the trajectory.
在系统中，用计算机软件替代了由缓冲寄存器、环形分配器、控制逻辑及正反转控制门组成的步进电机控制器。
In this system, computer software was used to replace stepping motor controller which consisted of buffer, annular allotter, control logic and control doors of clockwise and counterclockwise running.
基于H型双极模式P WM控制原理，设计了一种直流微电机正反转调速功率放大电路。
A power amplification of H-bridge bipolar PWM control is designed for controlling DC micro-motor of positive rotation, reverse rotation and speed regulation.
由缓冲寄存器、环形分配器、控制逻辑及正反转控制门组成的步进电机控制器则用计算机软件替代。
The step motor controller composed of buffer register, the circular allotter, the control logic, the positive run and back run control circuits is replaced by computer software.
说明：使用TI公司的MSP430G2553控制步进电机实现正反转。
由缓冲寄存器、环形分配器、控制逻辑及正反转控制门组成的步进电机控制器则用计算机软件替代。
Buffer register, circular allotter, control logic, positive run and back run control circuits are replaced by computer software.
该系统采用ATMEL公司的89s52单片机发出脉冲来控制直线步进电机的正反转。
And it can realize the positive inversion of linear stepping motor by sending pulses using 89s52 MCU which is produced by company ATMEL as well.
正常驾驶时，把电机转轴反转，带动挡风板缩入车顶夹层内便可。
When normally driving, the driver can reversely rotate the motor rotating shaft to drive the wind shield to retract into the interlayer of the roof.
调试结果表明，控制系统可实现电机启动、调速、正反转和电流闭环控制。
The test results show that the control system can realize starting, speed adjustment, clockwise and anti-clockwise running and current closed-loop control functions of motor.
同时电机频繁正反转对电机本身也产生巨大冲击，容易造成铸铁电机罩壳破碎。
At the same time, the frequent n&r transfer generate huge force to the electric motor itself and tends to break the motor's cast-iron frame.
最后，电压差的正负输出到电机驱动芯片决定电机的正反转。
Finally, the positive and negative output voltage difference to the motor driver chip motor positive decision.
实现对四相步进电机的启动，停止控制、正反转控制。
To achieve the four-phase stepper motor to start, stop control, reversing control.
涡轮轴上及后轮轴上设有一对离合器，当离合器全部合上时，清洗机随着驱动电机的正反转而前进或后退。
When the clutches are all closed, the cleaning machine runs forwards or backwards as the negative and the positive rotation of the driving motor.
电路部分通过机器运作时触碰行程控制开关来实现电机的正反转。
The circuit potion achieves the positive inversion of the motor through touching a stroke control switch when the drinking bottle shredder is running.
单片机的P 1.1、P 1.2、P 1.3口分别接步进电机CBA绕组，他们按照一定的规律输出，各端口输出高低电平时序随电机正反转的要求不同而不同。
MCU P1.1, P1.2, P1.3, respectively, then I CBA stepper motor windings, according to the laws of their output, the output ports with high-low-level timing of the positive electric requirements vary.
一种触电及各类生命抢救自动气压仪，主要由空气输送装置以及电机启停及 正反转控制电路组成；
An electric shock and various life-saving automatic pressure instrument which mainly comprises an air transmission device and a motor start-stop and positive inversion control circuit;
一种触电及各类生命抢救自动气压仪，主要由空气输送装置以及电机启停及 正反转控制电路组成；
An electric shock and various life-saving automatic pressure instrument which mainly comprises an air transmission device and a motor start-stop and positive inversion control circuit;
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