In addition , the working principle , characteristics and compensation of the control system of current peak are deeply discussed ; the pwm control circuit of using uc3875 as the core , the inputting over - voltage protecting circuit and owe - voltage protecting circuit are given , etc 此外，论文还对软开关逆变器峰值电流控制系统的原理、特性及补偿进行了深入的分析；设计了以uc3875为核心的移相pwm控制及输入过压、欠压保护等电路。
On the basis of a lot of experimental data based on the orthogonal test of pulse peak electric current , pulse width and pulse intermission , experimental mathematical models of electric spark forming of several sorts of materials are built up with multiple linear regression analysis 摘要用正交试验法对电火花加工中的峰值电流、脉冲宽度、脉冲间隔进行设计，在大量实验数据的基础上，采用最小二乘法建立实用的多种材料的电火花加工实验数学模型。
Then these separated interferograms can be recorded by ccd camera the experiments with the multi - frame interferometer was carried out on a small gas - puff z - pinch device with 23 kv working voltage and 210 ka peak current and about 2 risetime , and good results were obtained 该套干涉仪在小型喷气式z箍缩装置上进行了实验, z装置的工作电压23kv 、峰值电流210ka 、电流上升时间约2 。根据干涉图条纹的移动数,可以计算出等离子体的电子密度和运动速度。
The paper draws such conclusions : peak - current control has fast dynamic res ~ ond with simple control . arid requires slope compensation ; components should he laid reasonably ; soft - switching has merits on decfeasing switcliu ~ ~ ? ltage and improving the efficiency of syste1 ~ i 论文得出峰值电流型控制具有动态响应快，控制简单，需要斜率补偿；电路元件应合理地布局和布线；软开关在降低开关电压应力，提高电路的效率等方面有显著优点等重要结论。
A series of multi - pulse experiments are performed at breakdown voltage up to 400kv , peak current up to 30ka with an interval of 5ms , which shows spark gap switch could be obtained good insulation recovery in several milliseconds under the condition of water dielectric pulse power modulator with low load 在击穿电压400kv ,峰值电流30ka ,脉宽40ns的工作参数下,采用吹气的办法(气流速度30m / s ) ,使气体火花开关多脉冲运行间隔达到5ms ,实验结果与理论估计相符。
With an experimental system built and two different switches designed by ourselves , a serial of high - energy high - coulomb repetitive experiments were performed at voltage up to 100kv , peak current up to 85ka , charge transfer up to about 0 . 6c per pulse , repetition rate up to 10hz , and single shot energy up to 5kj 建立了一个高平均功率开关实验系统，设计和实验了两种实用的三电极重复频率气体开关。实验获得的最大工作参数为：工作电压100kv ，峰值电流85ka ，电荷传递量0 . 6c脉冲，重复频率10hz ，单脉冲能量5kj 。
Based on the analysis and comparison of the peak current - injection mode and average current mode control strategies , the method of designing average current control mode pi regulator is obtained . the digital simulation of the converter has been done with the help of matlab software . the good transient and stable character of the converter is attained while rated load 在分析与比较峰值电流模式与平均值电流模式控制策略的基础上，给出平均值电流模式pi调节器的设计方法，利用matlab软件对变换器进行了数字仿真，证实了变换器在额定功率范围内动、静态特性良好；过载情况下变换器具有自动限流、保护主功率器件的特性。
However , by the time a lightning strike has traveled through the distribution network , surge arrestors will have dissipated a proportion of the charge , network impedance will have shaped the impulse and the residual energy can be represented in terms of its waveshape , and its peak current which is what will be present at a service entrance 然而，雷击经过电力网络进行传送以后，避雷放电器会将一部分能量泄放掉，网络的阻抗也会对电涌进行修整，而残余的能量将可以以它的波形来体现，其峰值电流也就是建筑物进入端将会出现的情况。
We take the peak current controlled dc / dc boost converter as an example . we compare and analyze power spectrum of input inductance current quantitatively of chaotic operation and periodic operation of converter . the computer simulation results demonstrate that power spectrum of input current has lower peak of power spectrum of chaotic operation than it of periodic operation , and then emi level is reduced 以一个峰值电流控制dc dcboost型变换器为研究对象，在分析电路混沌现象的基础上，分别对该电路工作于混沌和周期两种状态下的输入电流频谱进行了定量分析对比，证实了在相同输出电压条件下，工作于混沌状态下电路输入电流的频谱与工作于周期状态下电路输入电流的频谱相比，频谱峰值减小，具有降低emi水平的效果。
The chip can be widely used in mp3 player , pda , digital camera , cells phone and portable products etc . this thesis first introduces the basic theory of switching power supply . the operating theory of this circuit has been demonstrated . the operating principle and simulation analysis about band gap reference , self - biased current source , one shot circuit , hysteresis comparator , and current - limit circuit have been particularly expounded in this thesis 本文首先阐述了开关电源的工作原理,详细介绍了本电路的整体工作原理,最后重点介绍了自偏置电流源电路、基准源电路、单稳态触发器电路、峰值电流限制及低电池电压迟滞比较器的工作原理,并利用eda工具larker ? ams 、 hspice对电路进行了完整的设计和模拟仿真,给出了合理的电路数据,各子模块电路的电特性参数均达到或优于设计所需指标。
