调制管转移射频放大器中的电流。
该通信系统还受背景光、雪崩光电二极管（APD）增益和调制消光比等因素的影响。
The results also show that the performance of this communication system can be affected by background optical, APD gain and modulation extinction ratio.
放大器输入为电压信号，与光敏二极管产生的光电流信号成比例。调制光柱以断路器同样的频率照射光敏二极管。
The amplifier input is a voltage proportional to the photocurrent signal produced by a photodiode, which is irradiated by a modulated light beam at the same chopper frequency.
针对三相六拍两两导通且下桥臂开关管调制方式提出了新型电流检测方案。
A new current detection method is introduced aimed at lower bridge arm modulation when motor is operating at six states.
同时，采用专用芯片SG3525来产生脉宽调制电路，由IR2110组成的驱动电路来驱动绝缘门极双极晶体管（IGBT）。
Special chips, such as SG3525 and IR2110 are also used to generate PWM and to drive the IGBT.
分析了在直接频率调制下，激光二极管中的光反馈效应，探讨了振动微小位移和速度的理论模型。
By analyzing the direct frequency modulation and optical feedback effect of laser diode, a theoretical model for measuring small vibration displacement and velocity is discussed.
设计并研制了一套基于光反馈效应的直接频率调制激光二极管光电探测系统。
An optoelectronic detection system based on the optical feedback effect in a direct frequency modulated laser diode is developed.
分析了调频定距引信中采用变容二极管直接调频时调制的非线性及其对定距精度的影响。
Gives an analysis on the non linearity in frequency modulation when a varactor modulates directly in a FM ranging fuze, and shows its influence on the precision of ranging.
高电子迁移率晶体管(HEMT)是利用异质结和调制掺杂技术制成的具有超高迁移率的场效应晶体管。
High electron mobility transistors (HEMT) is one of field effect transistors, which is made by modulation doped heterostructure technology and possess super high electron mobility.
设计了一种能对输出电流实现多种波形调制的半导体激光二极管（LD）驱动电源。
The design of a laser diode(LD) driver that can generate multi-waveforms for the modulation of drive current was present in this paper.
在分析比较的基础上，提出将激光二极管发射波长调制及谐波检测分析处理技术用于氧气浓度检测。
Then, the idea that detecting oxygen concentration by using laser diode wavelength modulation and harmonic signal treatment was proposed.
本文描述了脉冲耿氏二极管、微波电路、脉冲调制器的结构和设计原则；
The design principles and structure, characters of a kind of pulse Cunndiode, microwave circuit and pulse modulator are described.
车载双联光电瞄准系统主要由折转光管、自准直经纬仪和相应的调制器组成。
Vehicle twin- photoelectrical pointing system mainly consists of reflex light-tubes, a autocollimation theodolite and modulators.
根据永磁无刷电动机制动过程PWM控制的开关管的方式不同，可以分为半桥调制制动方式和全桥调制制动方式。
According to the different PWM module in regeneration of brushless PM motor, there are two kinds of modulation, half bridge modulation and whole bridge modulation.
分析了传统的PWM_ON调制方式对无刷直流电动机在非换相期间由于截止相的反并联二极管续流而导致转矩脉动的原因。
The torque ripple caused by diode freewheeling of the inactive phase during non-commutation state of PM brushless DC motor(BLDCM)when using the PWM_ON type of pulse width modulation was analyzed.
本文介绍了几种新型复合二极管，包括变容二极管、开关二极管、二极管阵列、阻尼二极管、调制二极管和肖特基二极管等。
In this paper, some new multiple diode, such as varicap diode, switching diode, diode array, damper diode, modulation diode and Schottky diode are discussed.
该系统采用IGBT（绝缘栅双极型晶体管）器件，PWM（脉宽调制）控制技术。
The system adopted insulated gate bipolar transistor (IGBT) as its main circuit and pulse-width modulating (PWM) technology.
介绍了一种能满足该要求的栅控行波管发射机通用浮动板调制器，阐述了其设计方法。
This paper introduces a kind of current floating-board modulator for grid control traveling-wave tube transmitter, which can satisfy the requirement, discusses the design method.
提出一种改进型单斩pwm调制方式，对桥臂上下管进行轮换单斩，保证了每个开关管损耗的一致性。
An improved alternative single-chop PWM control mode is proposed in the paper, which ensures the consistency of power loss between the upper transistor and the lower one.
文中指出，在晶体管化的脉宽调制器中，在效率和失真两个方面。PANTEL原理电路优于基本PD M电路。
So far as efficiency and distortion are concerned, the transistorized pulse-duration modulator by PANTEL method is proved to be superior to that by the basic PDM circuit.
分析结果表明：在多信号输入时，输出功率中确实有输入信号的互调制分量产生，同时可以发现，对于宽频带的行波管，互调制分量对主工作频率输出功率有比较大的影响。
The results show that: when two signals are inputted into TWT, the output power includes the intermodulation components, and the intermodulation components have important effect on broadband TWT.
相对于体外的AM调制方式，解调器采用二极管峰值包络检波进行解调。
Compared with in vitro AM modulation modes, the demodulator adopts the diode peak envelope detector for demodulation.
系统采取调制光源作为探测信号，采用光敏二极管面阵作为接收组件，大大提高了系统的灵敏度和抗干扰能力。
Modulated light is used as detecting signal in this system, photodiode area array is used as receiving module, which greatly improves the sensitivity and anti-interference ability of the system.
讨论了这种电路在全固态刚管调制器中的应用前景。
The application of this circuit to all-solid-state hard tube modulator in the future is also discussed.
机床电力拖动系统采用集成电路实现脉宽调制方式调速用IGBT管驱动电动机。
This article presents the application of IGBT-PWM regulating speed system in machine tool's electric drive.
在我院多年开发胀管机的基础上，首次研制成功空调制冷换热器超大型胀管机，解决了大片距换热器由手工胀管转变为机械胀管的难题。
The huge Tube Expander for Heat Exchanger of Air Conditioner and Refrigeration System are developed first by our institute after studying for a long time.
第二部分是光纤传输和光电转换器，从传感头输出的频率调制信号驱动装在高压端的发光二极管，进而转换成光脉冲信号；
The first one is a sensor head converting the current flowing in the power line into the optical pulse FM signal. The second one is optical fiber transmission and optolectric conversion.
实际安装使用空调器过程中长配管出现的情况越来越普遍，尤其是近几年，轻型商用空调的普及使用，使得大部分室内机安装位置与外机放置相距较远，导致空调制冷能力下降较大。
The long connection pipe of air condition leads to the decline of the air-conditioner's capacity in many projects. In recent years the application of light commercial unit increases this phenomenon.
由于IC CD器件的成本较高，本论文设计了用光电倍增管进行增益调制的原理验证性实验。
As ICCD device costs high, based on analysis of existing photoelectric detector, we choose photomultiplier tube as a substitute for the principle verification experiment.
由于IC CD器件的成本较高，本论文设计了用光电倍增管进行增益调制的原理验证性实验。
As ICCD device costs high, based on analysis of existing photoelectric detector, we choose photomultiplier tube as a substitute for the principle verification experiment.
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