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- The back EMF constant and torque constant are analyzed. The calculating formulas are gived. 分析了电机的反电势常数和力矩常数,并给出了计算公式;
- The geometrically-inspired design combines a trapezoid shape with straight lines to convey a sense of dynamic energy. 注意。该几何级数的灵感设计结合了梯形形状与直线转达一种动态能源。
- Trapezoidal correction: Optical + -18degrees (the election's trapezoidal shape of the button to correct, the regulation is very convenient! 梯形校正：光学+-18度(选钮形状的梯形矫正，调节很方便！）
- The constitute of harmonic back EMF is analysed, the position detection circuit and the microcomputer control system of step motor is designed. 分析了谐波反电势信号的构成，设计了相应的位置信号检测电路及步进电动机的微机控制系统。
- In hybrid stepper motor, the back EMF of stator winding is function of rotor position, continuous rotor position is obtained from thefunction. 就混合式步进电机而言，定子绕组的反电势是转子位置的函数，从而可以解算出连续的转子位置信息。
- Cuponal can be cut using methods that apply to aluminium.Grinding of alternative saw teeth to a trapezoidal shape gives good results and deburring is not necessary. 运用适用于铝的方法铜也能被切割.;把交叉形的锯齿磨成梯形的形状就是一个很成功的例子
- The technique of back EMF induction in BLDC motor is analyzed, the "virtual neutral point" method and the technique of "3-step" start are introduced. 主要分析了反电动势感应方法，并阐述了虚拟中点法和三段式起动技术。
- Detecting back EMF is one of the most important methods for the detection of rotor position in square wave current drive BLDCM sensorless control. 方波电流驱动的BLDC电机无位置传感器控制检测转子位置的最重要方法是反电动势检测法。
- A small stone artifact, probably an arrowhead, with a blunt straight edge and a sharpened, crescent - shaped back, especially characteristic of the Mesolithic Age. 新月形石器一个小的石制的人工制造物，可能是个箭头，有钝的直边，尖的新月形背部，尤其是有中石器时代特点的
- A small stone artifact,probably an arrowhead,with a blunt straight edge and a sharpened,crescent - shaped back,especially characteristic of the Mesolithic Age. 新月形石器一个小的石制的人工制造物，可能是个箭头，有钝的直边，尖的新月形背部，尤其是有中石器时代特点的
- On this base, the closed-loop control method of hybrid step motor using the harmonic back EMF is investigated, and the microcomputer control system of step motor is designed. 在此基础上研究了利用谐波反电势信号实现混合式步进电动机闭环控制的方法，设计了步进电动机的微机控制系统。
- The walls are of single or double structure or a trapezoidal shape; the watchtowers are oblate or round in shape; the roofs are flat or domed; thus it stands out as the most fascinating example of architecture along the entire Great Wall. 墙体有单面墙、双面墙、梯形石墙等；敌楼有扁形、圆形等；楼顶有平顶、穹隆顶等，因此享有“长城建筑之最”的美誉。
- The application of the technology of back EMF induction in BLDC are analyzed by introducing the IC ML4428.The calculation formulas of some important parameters are shown behind. 通过对ML4428的介绍，分析了反电势感应技术在无刷直流电机中的应用，并给出了其中一些重要参数的计算方法
- The zero crossing signal of the true phase back EMF can be directly obtained from the motor terminal voltage by properly choosing the PWM and switch control strategy. 该方法不需要引出电机中性点,通过选择PWM和导通控制策略,就能直接从电机端电压获得反电势过零点信号。
- It is discussed that the performance of servomotor is influenced by winding connect ion, back EMF, resistance, inductance and electrial time constant etc. 讨论了绕组连接方式、反电势以及电阻、电感和电气时间常数等参数对电机性能的影响;
- Generalized Trapezoid Shaped Membership Function 广义梯形隶属函数
- The magnetic network model of hybrid step motor is established according to the air gap rate permeance method, and the expression ofthe harmonic back EMF is deduced. 利用气隙比磁导法建立了混合式步进电动机的磁网络模型，推导出谐波反电势的表达式。
- This new SMO can decrease the high frequency ripple of the back EMF (Induced Electromotive Force), has the advantage of no phase delay, and can simplify the structure of the SMO. 该滑模观测器能够减小估算反电势中的纹波，且不产生信号相位差，并较传统的滑模观测器结构简单。
- In this paper, a DAQ system base on digital oscilloscope and LabView is set up, and the noise performances of digital ORTEC-572, DPLMS and trapezoidal shaping method are studied. 本文搭建了一套基于数字示波器和LabView的DAQ系统,并通过实验研究了数字ORTEC-572、DPLMS和数字梯形成形等数字算法的噪声性能。
- The modeling method for the current regulated Brushless DC(BLDC) motor is presented,which is based on the strategy of the piecewise linear curves used to generate the back EMF. 该方法在不影响稳定性的同时,使得控制系统的抗扰能力得到改善。
