它还包括霍尔元件输入、整流控制定序器、固定停机时间脉冲宽度调制(PWM)电流控制以及锁定转子保护。
It also includes, Hall element inputs, a sequencer for commutation control, fixed off time pulse width modulation (PWM) current control and locked rotor protection.
在光通信和光集成电路方面，越来越迫切需要能调制、存贮和显示光信息的电控元件。
In optical communications and optical integrated circuits, electrically controlled components are needed increasingly to modulate, storage and display optical information.
羧酸酯化合物，液晶化合物，液晶组合物液晶元件和光调制方法。
Carboxylic acid ester compound, liquid crystal compound, liquid crystal composition, liquid crystal element and light modulation method.
采用窄带滤光片作为选频元件对精确波长激光器高频调制特性进行了小信号分析。
The small signal analysis for high frequency modulation characteristics of specific wavelength laser diode with narrowband filter was presented.
本文介绍一种以液晶空间光调制器作为调制位相信息的衍射元件，获得可变焦长的菲涅耳透镜，以及该元件在光学成像系统中的应用。
A kind of diffraction element modulating phase information by LC space light modulator to get a zoom Fresnel lens, as well as the using of said element to optical imaging system, is introduced.
提出一种新的图像识别方法，直接利用输入图像和参考图像的联合变换相关功率谱进行双功率谱干涉，不需要特殊的光学元件，也不需要对功率谱进行调制和改造。
It realized the straight double-JPS interference of the JPS of input identifying image and reference one, and didn't need special optical components and improving the JPS variedly either.
电力变换器主电路部（3），其根据该脉冲宽度调制波对开关元件进行驱动，将直流电压转换为三相交流电压；
A power converter circuit (3) drives a switching device by the pulse-width modulated wave for converting a direct current into the three phase alternating current.
着重介绍了运用元件计数法对脉宽调制器进行可靠性预计的详细过程，并对其结果进行了分析。
The component count method is used to demonstrate the particular course of predicting the reliability of Pulse-Width Modul.
本文最后对空间光调制器进行了介绍和讨论，利用此光学元件，对偶氮液晶材料进行了偏振全息图像存储。
At last, we put emphasis on the Spatial Light Modulator (SLM). Based on this optical component, we record polarization holography images storage in an azo ionic liquid crystalline polymer.
以半导体光放大器为非线性元件的全光开关中，由于SOA中交叉增益调制和交叉相位调制并存，会导致光开关各输出端口性能有所差异。
For SOA-based all-optical switching, because cross-phase modulation and cross-gain modulation is co-exist in SOA, the properties of each output port is different.
该互感器以罗柯夫斯基线圈作为电流传感元件，以电容分压器作为电压传感元件，以光纤作为信号传输通道，借助有源电子调制和信号处理技术实现电流、电压的测量。
A Rogowski coil and a capacitive voltage divider are used as current sensor and voltage sensor respectively in the transducer and optic fibers are used to transmit signal.
该互感器以罗柯夫斯基线圈作为电流传感元件，以电容分压器作为电压传感元件，以光纤作为信号传输通道，借助有源电子调制和信号处理技术实现电流、电压的测量。
A Rogowski coil and a capacitive voltage divider are used as current sensor and voltage sensor respectively in the transducer and optic fibers are used to transmit signal.
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