Also by adopting half cycle modulation, the loss of switching and conduction losses of MOSFET are reduced.
该文分析了双模式运行的逆变器的切换过程。
This paper intrueluees the compsing and working principle of logical no cycle current switching circuit syste...
本文对该系统的逻辑无环流切换电路的组成和工作原理作了介绍，并给出各个功能电路的原理图
At last, control circuit of one cycle controlled bridge switching power amplifier is improved with the basic idea of one cycle control.
最后，根据单周控制的基本思路，改进了单周控制的全桥开关功率放大器的控制电路。
The filtration cycle and slag discharge time of dumping dregs valve is controlled by microcomputer automatically according to impurity content, and it has reserve manual switching function.
微电脑自动控制电动排渣阀，根据杂质含量可任意设置过滤周期和排渣时间，全自动操作，同时还设置了备用的手动切换功能。
The decreasing time of free-wheeling current is relative to duty cycle in the exiting FB-ZVZCS-PWM soft-switching inverter arc welding power supply with the block capacitor, and it is hard to achieve zero current switching for lagging leg with low duty cycle.
现有FB-ZVZCS-PWM软开关弧焊逆变电源采用阻断电容衰减原边环流电流所需的时间与占空比有关，占空比很小时滞后臂难以实现零电流开关。
Based on the output voltage error at the beginning of each switching cycle, MPA controller selects one control pulse among multilevel pulses as the control signal of converter at this switching cycle.
MPA控制器在每个开关周期起始时刻根据变换器的输出电压误差，在强弱等级不同的多级脉冲中选取一个作为该周期的有效控制信号。
The converter can be improved just by exchanging the position of the resonant inductance and the transformer such that the transformer is connected with the lagging leg. The improved converter has several advantages over its counterpart, e. g., the clamping diodes conduct only once in a switching period, and the resonant inductance current is smaller in zero state, leading to a higher efficiency and reduced duty cycle loss. The operation principle of the improved converter and the comparison with the original converter are analyzed in this paper. The effect of the blocking capacitor in series with the transformer or resonant inductance is discussed, and a best scheme is determined. The improved converter is adopted to design the DC/DC converter of secondary power supply in HVDC power system.
本文将谐振电感和变压器交换位置，使变压器与滞后桥臂相连，这样箝位二极管在一个开关周期中只导通一次，同时零状态时谐振电感电流较小，有利于提高变换效率和减小占空比丢失，本文分析改进后变换器的工作原理，并与改进前的变换器进行对比，讨论隔直电容在不同位置对变换器工作的影响，确定一种最佳工程方案。
The difference of leading switches and lagging switches to realize the zero-voltage switching and the reason of duty-cycle loss is emphatically argued.
重点讨论了超前管、滞后管实现零电压开关的差异以及副边占空比丢失的原因。
One-cycle control restrans power source perturbations in one switching cycle; the average value of the switched variable follows the dynamic reference in one switching cycle; and the controller eliminations switching errors in one switching cycle.
它可以在一个周期内抑制电源扰动、使开关平均值跟随动态参考值并消除开关误差。
A complete switching cycle consists of four full steps, which moves the forcer the distance of one tooth pitch over the platen.
一个完整的切换周期包括完整的步骤，forcer移动的距离的一颗牙齿音量的滚筒。
The principle of one-cycle control was introduced in detail, the researching situation and application on DC-DC convertor, PFC, APF, DC/AC inverter, switching power amplifier, UPS, SVG, AC stabilizer, maximum power point tracking for photovoltaic power system of one-cycle control method were summed up, the advantage and disadvantage of the control method were summarized and prospected.
对单周控制原理进行了详细介绍，综述了单周控制方法在DC-DC变换器、功率因数校正、有源电力滤波器、逆变器、开关功率放大器、不间断电源、静止无功发生器、交流稳压电源以及功率放大和光伏电源最大功率点跟踪控制等的研究现状及应用，并对这一控制方法的优缺点进行了总结和展望。
The transformer core must be reset during each switching cycle.
在每个开关周期中必须对变压器磁芯去磁。
During switching time, command was handed to the other party after a cycle completed by each task.
切换时间中每个任务通过一个循环把控制权交给对方。
Phillips Curve; Regime-Switching; Business Cycle; Threshold Cointegration; Monetary Policy
菲利普斯曲线；机制转移；经济周期；阈值协整；货币政策
In this thesis, it is initially investigated that the influence of the additive stress and electric fields on domain switching of ferroelectric materials under cycle-electric field.
但在以往的研究中，很少涉及这种影响。该文就循环电载下热效应引起的力、电场和约束畴变时产生的附加应力场对铁电材料畴变的影响进行了初步研究。
Based on the corrected measurement data, the switching bursts of the radiated EMI data within a power cycle are analyzed to give the frequency and amplitude range of the radiated interferences.
基于校正后的电磁辐射骚扰测量数据，从时域和频域两个方面来研究SVC高频电磁骚扰的特征，分析了一个工频周期内SVC开关冲击特性，给出了辐射骚扰的幅值以及频率范围。
Adjusting the switching frequency at which the signal is time-division transferred, the basic frequency signal is transferred through n branches within one signal cycle efficiently, and each branch works for a fixed 1/n of the signal period.
调控电路分时传递的切换频率，将主频信号在一周期内由n条支路在其固定的1/n时段分时有效地传递，其合成即为滤波器传递的主频信号。
The above-mentioned method is applicable to any switched-capacitor network with arbitrary switching phase or duty cycle.
本方法适用于具有任意开关周期的任何一个开关电容网络的计算。
The application of APACS in adsorbent chamber control system is introduced. Hardware configuration and automatic process variable switching (APS) function and zone transition control algorithm of pump cycle loop are described.
介绍了APACS在吸附塔控制系统中的应用情况，重点介绍了其硬件配置和泵送循环回路的自动PV切换功能及ATC的算法。
According to the relationship between torque pulsation and the switching point in the first cycle of the stator voltage, the control strategy for eliminating torque pulsation is given when the motor is connected with the three-phase system.
在仿真分析电机连接三相系统时定了电压的第一个系统周期内开关时刻与转矩脉动关系的基础上，给出了转矩脉动的控制策略。