First, we study the Josephson phase in layer superconductors. Josephson critical current modulation can be used to tune the Josephson phase.
主要集中于以下几方面工作：首先，我们研究层状超导体的约瑟夫森相位。
In order to study the strategy of input current modulation, the simulation model of matrix converter under unbalanced input is built with MATLAB.
通过参数设定、输入电压相位计算、控制算法实现和开关接口等环节设计，实现了输入电流偏置角动态调整的控制策略。
The influence of bias current and modulation frequency on chaos dynamics of vertical-cavity surface-emitting laser (VCSEL) subject to direct current modulation is investigated by numerical simulation.
利用数值模拟的方法研究了电流调制下偏置电流和调制频率对垂直腔面发射半导体激光器(VCSEL)混沌动力学特性的影响。
The laser driver optimizes the characteristics of data streams and provides the adequate modulation current to the laser.
雷射驱动器将资料流的波形特性最佳化，并且提供适当的调变电流给雷射。
It also includes, Hall element inputs, a sequencer for commutation control, fixed off time pulse width modulation (PWM) current control and locked rotor protection.
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。
The paper discusses and probes into the application of adaptive control in mine hoist direct-current velocity modulation system.
本文对自适应控制在矿井提升机直流调速系统中的应用进行了研究和探讨。
The part of driving includes constant current control, constant power control and pulse modulation control.
驱动部分又包括恒电流控制，恒功率控制和脉冲调制控制三个方面。
By analyzing the process of the inversion, the control strategy of resonant switch and clamped switch modulation with current hysteresis control is discussed.
通过对其换流过程的分析，提出了采用谐振开关控制，箝位开关控制的电流滞环控制的调制方式的策略。
Here the discrete on or OFF state of the modulation itself can be used to control the switches thereby controlling the voltage or current across the load.
在这里，离散的开或关的状态调制本身可以被用来控制开关，从而控制得或电流负载。
The servo control system combines position loop, speed loop, current loop with algorithm of space vector pulse width modulation(SVPWM).
系统采用位置、速度和电流环三环控制，并结合空间矢量脉宽调制（SVPWM）算法。
A new method for reducing core loss and excitation current in transformers that utilizes the fundamental principles of third-harmonic flux modulation is proposed in this paper.
本文对变压器节能提出了一个崭新的观点，即通过三次谐波磁场调制机理来降低变压器的铁耗和励磁电流。
Double space vector modulation can realize zero current commutation of the rectifier side, greatly reduce the switch loss, and improve the efficiency of the converter.
双空间矢量调制两级协调控制能实现整流级零电流换流，极大地减少了开关损耗，提高了变换器的效率。
Methods 107 cases with scapulohumeral periarthritis were treated by modulation random intermediate frequency current.
方法采用调制随机中频电流机治疗肩周炎患者107例。
Change the inverter output voltage or output current are two kinds of different ways, namely, PAM pulse amplitude modulation control and PWM control pulse width modulation.
改变变频器的输出电压或输出电流有二种不同的方法，即PAM脉冲幅值调制控制和PW M脉冲宽度调制控。
Instead of the conventional analog hysteresis comparator, the compensatory current is produced by 3-dimensional space vector modulation (3d SVPWM) technique.
不同于传统的模拟滞环比较器，采用基于三维空间矢量脉宽调制(3d SVPWM)法控制补偿电流的产生。
The front stage uses the single-voltage-mode control strategy and the back stage uses the three states discrete pulse modulation hysteresis current control strategy.
前级采用电压单环调制方式，后级采用三态滞环离散脉冲调制电流滞环跟踪控制技术。
The design of a laser diode(LD) driver that can generate multi-waveforms for the modulation of drive current was present in this paper.
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。
Aimed at dead time effect of voltage-fed space vector pulse width modulation (SVPWM) inverter, a novel compensation method detecting current polarities from the current vector was presented.
针对电压源型空间矢量脉宽调制逆变器的死区效应，提出了一种根据电流矢量判断电流极性的死区补偿方法。
By using the time variant modulation ratio method, the harmonics can be eliminated and a sinusoidal and balanced output voltage or input current is obtained.
通过采用时变调制比的方法，可以消除不对称输入电压的影响，从而获得对称正弦输出电压或输入电流。
A new method of detecting compensating reference current for active power filters by frequency multiplication modulation (FMM) is presented in this paper.
提出了一种电力有源滤波器补偿参考电流的倍频调制检测新方法。
Mud pulse modulation data flow is thin, but current transmitter as far distance transmission means has been widely applied other field, technology is mature.
泥浆脉冲方法目前应用较多，但数据流量稀疏，电流环技术作为远距离传输手段已被广泛的应用于其它领域，技术成熟。
A novel induction heating power based on current hysteresis band control and SVPWM modulation technology is introduced in this paper.
介绍了一种新颖的基于电流滞环和空间电压矢量调制(SVPWM)技术的电压、电流双闭环感应加热电源。
In modulation driving circuit, with the chip MAX3263, being the function of APC, there is standard PECL level interface to modulate laser modulation current and preset current neatly.
在调制驱动电路中，采用MAX3263芯片，具备标准的PECL电平接口，可以灵活地调整激光器的预置电流和调制电流，并具备自动功率控制功能。
There are DC off-sets in the compensated source current of the APF with one-cycle control under bipolar modulation.
采用双极调制方式单周控制APF补偿后的电源电流中存在直流分量。
The modulation is driven by the bias current below the threshold.
调制时的偏置电流低于阈值。
The device has several advantages such as adjustable wide current range, controllable wide voltage range, circuit interface compatible with TTL, small volume and easy modulation.
该器件不仅输出电流可调范围宽、允许工作电压变化范围大、电路接口与TTL兼容，而且体积小、调节方便。
The setting is introduced on the relationship between primary frequency modulation speed difference and primary frequency modulation load for current modulated type steam turbines with base-load.
介绍了目前电调型带基本负荷汽轮机的一次调频转差与调频负荷关系曲线的设置情况。
The measurement error is found to decrease with the increase of the modulation current and this relation is applied to finding the optimum experimental condition for the short distance measurement.
分析测量误差与调制电流大小的关系，进而确定短距离测距的最佳实验条件。
The hybrid integrated optical accelerometer is a kind of practical accelerometer, which adopts optical phase modulation and alternating current phase tracking and homodyne compensation scheme (PTAC).
混合集成光学加速度计是一种实用型的实时加速度传感器，在信号处理过程中采用了光相位调制和交流相位跟踪零差补偿技术(PTAC)。
The hybrid integrated optical accelerometer is a kind of practical accelerometer, which adopts optical phase modulation and alternating current phase tracking and homodyne compensation scheme (PTAC).
混合集成光学加速度计是一种实用型的实时加速度传感器，在信号处理过程中采用了光相位调制和交流相位跟踪零差补偿技术(PTAC)。
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