查询词典 linear switching

Juncai Glass Machinery Co., Ltd has 10 product series and more than 30 kinds of machines presently, including Glass Linear Double-edging Machine , High-grade Furniture Series (26-Grinding Head), General Series(22-Grinding head), Construction Series(16-Grinding Head), Sandwich Hollow Glass Series (12-Grinding Head), Automatic Cutting Unit Series, Linear Double-edging Machine Series, Linear Double-round edging Machine Series, Glass Linear Edging Machine for Bevel Edge, Linear Single-edging Machine Series, Linear Single-round Edging Machine Series, Automatic and Manual Special Edging Machine Series, Automatic Vertical and Horizontal Drilling Machine Series, Glass Sandblasting Machine Series and Glass Washing Machine Series

骏彩现有产品十大系列、三十多种机型，包括玻璃双直边磨边机，高档家具系列（26磨头）、通用系列（22磨头）、建筑系列（16磨头）、夹层中空玻璃系列（12磨头）、自动切割机组系列，直线双边机系列，直线双圆边机系列，斜边机系列，直线单边机系列，直线单圆边机系列，自动、手动异形机系列，自动立式、卧式钻孔机系列，喷砂机系列，清洗机系列。

Juncai Glass Machinery Co., Ltd has 10 product series and more than 30 kinds of machines presently, including Glass Linear Double-edging Machine , High-grade Furniture Series (26-Grinding Head), General Series(22-Grinding head), Construction Series(16-Grinding Head), Sandwich Hollow Glass Series (12-Grinding Head), Automatic Cutting Unit Series, Linear Double-edging Machine Series, Linear Double-round edging Machine Series, Glass Linear Edging Machine for Bevel Edge, Linear Single-edging Machine Series, Linear Single-round Edging Machine Series, Automatic and Manual Special Edging Machine Series, Automatic Vertical and Horizontal Drilling Machine Series, Glass Sandblasting Machine Series and Glass Washing Machine Series

骏彩现有产品十大系列、三十多种机型，包括玻璃双直边磨边机，高档家具系列（26磨头）、通用系列（22磨头）、建筑系列（16磨头）、夹层中空玻璃系列（12磨头）、自动切割机组系列，直线双边机系列，直线双圆边机系列，斜边机系列，直线单边机系列，直线单圆边机系列，自动、手动异形机系列，自动立式、卧式钻孔机系列，喷砂机系列，清洗机系列。中国玻璃艺术网|中国艺术玻璃网|中国玻璃书店|中国玻璃耗材网|移门图库大全|翰林轩玻璃图库8sSMlf/ah

Main Products: ABBA linear guide, ABBA ball screw, HIWIN linear guide, HIWIN Ball Screw, THK linear guide / Ball Screw, XINHAN linear optical axis, IKO, THK, KMC linear bearings, NSB stainless steel linear bearings , APEX planetary reducer, a dedicated servo reducer, Japan Miki non-excited brake, clutch gear, special-purpose power / stepless speed regulation device Miki / Miki brakes, clutch and group body Miki dedicated servo coupling / engineering machinery dedicated joint coupling, ATLANTA worm gear reducer and a dedicated connection element, high-precision gear shaft, ATLANTA high-precision gears, ATLANTA rack and the rack and a straight body slide group, HSK screw support blocks, NOK seals, SAKACAMI seals, NAK seals, Taiwan gold cylinder, solenoid valve, gas control valve, mechanical valve, manual valves, pneumatic components, precision implementation of components and accessories, imported bearings such as NSK, SKF, INA; FAG; RHB; TIMKEN, etc..

主营产品：ABBA直线导轨、ABBA滚珠丝杆、HIWIN直线导轨、HIWIN滚珠丝杠、THK直线导轨/滚珠丝杠、XINHAN直线光轴、IKO、THK、KMC直线轴承、NSB不锈钢直线轴承、APEX行星减速机、伺服專用減速机、日本三木无励磁刹车、齿式离合器、专用电源/三木无级调速器/三木刹车、离合器及组体、三木伺服专用联轴器/工程机械专用联轴器、ATLANTA蜗轮蜗杆减速机及专用联接元、高精度齿轮轴、ATLANTA高精度齿轮、ATLANTA齿条及齿条与直线滑轨组体、HSK螺杆支撑座、NOK密封件、SAKACAMI密封件、NAK密封件、台湾金器气缸、电磁阀、气控阀、机械阀、手控阀、气动元件、精密执行元件及附件、进口轴承如NSK，SKF、INA；FAG；RHB；TIMKEN等。

By using methods of passivity and switching control of states of the linear subsystem, both stabilization of the linear subsystem and invariance of the specified region in state space can be guaranteed simultaneously. Hence, a sufficient condition for the robust invariance switching control of this class of systems was derived.

通过基于鲁棒严格无源技术和线性子系统状态反馈的切换控制来镇定线性子系统，同时保证了指定区域的正不变性，从而得到了该类系统鲁棒不变切换控制的充分条件。

The converter combines the advantages of the PWM technique and soft-switching technique, the PWM is effected all over the whole loads range, and soft-switching is effeted only in the switching transition period, the ZVS of leading-leg is achieved by using the energy stored in leakage inductor of the transformer and the output inductor, the ZCS of lagging-leg is achieved by using a blocking DC capacitor, the ZVS and ZCS are achieved for the whole load ranges (5A~250A).

控制电路采用相移控制方式，综合了PWM控制和软开关技术的优点，在大范围内实现PWM控制，而在功率器件换流期间实现软开关换流，其中超前桥臂利用变压器的漏感，实现了零电压开关，滞后桥臂利用隔直电容，实现了零电流开关，并且整个变换电路能在（5A~250A）的范围内实现软开关工作条件，满足弧焊电源负载变化大的特点。

Later, it makes some comparison with four kinds of modulation technique, and finally, it implements the three-level PWM switching power amplifier with the PWM technique. The power of the amplifier is 2kVA, and the frequency bandwidth is 10～3kHz. In the thesis, the author designs and makes the hardwares of the switching power amplifier. The hardwares contain power inverter rank circuit, control system circuit based on DSP, drive and isolation circuit, and protective circuit. The thesis also analyses the potential safety problems and put forward some solutions for the problems. Furthermore, the thesis accomplishes the software design of the control system, and successfully debugs it. The methods of designing higher power ampilfier are also discussed in the thesis. It analyses the feasibility of the methods, outlines the way of how to design higher power switching power amplifier, and does some experiments with the method of switches-parallelling.

根据电动振动试验系统对开关功放的要求，提出了以电感电流瞬时值控制技术为基础的三电平脉宽调制开关功放的设计方案，并通过系统仿真进行了原理性论证；然后设计并制作了开关功放的硬件，包括功率转换电路，基于DSP的控制电路，驱动、隔离电路以及保护电路；针对开关功放数学模型不易得出的特点，细致分析了模糊自适应PID控制方法，在此基础上编写了控制程序；研制出一台功率为2kVA，通频带为10～3kHz的三电平脉宽调制开关功放；论文中还探讨了实现大功率开关功放的方法，分析了各种方法的可行性，给出了实现大功率开关功放的思路，并进行了并联开关管实现大功率开关功放的实验。

A novel phase-shifted zero-voltage and zero-current switching PWM DC/DC full-bridge converter is presented in this thesis, which is based on the groundwork of summarization of the development of Power Electronics in recent years and lucubration in theoretical basis of modern high frequency soft switching power convert technique and analysis of operation principle, characteristic of the circuit and inherent drawbacks of the traditional phase-shifted zero-voltage switching PWM DC/DC full-bridge con...

本文在对近年来电力电子学科的发展高度综述和对现代高频软开关功率变换技术理论基础深入研究的基础上，对传统的移相控制ZVS PWM DC／DC全桥变换器的工作原理、电路特性、存在的缺点进行了分析，在此基础上提出了一种改进型的移相控制ZVZCS PWM DC／DC全桥变换器。

Local loop transmission from the central office to the customer's premises, unbundled from local switching or other services. Local transport from the trunk side of a wireline local exchange carrier switch unbundled from switching or other services. Local switching unbundled from transport, local loop transmission, or other services. Non-discriminatory access to 911, directory assistance and operator call completion services. White pages directory listings for customers of the other carrier's telephone exchange service. Nondiscriminatory access to telephone numbers for assignment to the other carrier's telephone exchange service customers. Nondiscriminatory access to databases and associated signaling necessary for call routing and completion. Telecommunications number portability. Nondiscriminatory access to services or information to allow the requesting carrier to implement local dialing parity (the ability to complete a connection without the use of additional access codes). Reciprocal compensation arrangements.

清单的内容总的可以概括为：申请与BOC进行互连的电信公司须提供与BOC相同的话音质量；平等访问网络元件；以公正合理的速度平等接入由BOC拥有或控制的电线杆、管道、导管以及通行权；中央局至用户住宅的本地环路传输，其定价与本地交换业务或其他业务定价分开进行；从本地电话公司交换机中继端开始的本地传输与交换业务或其它业务分别定价；本地交换业务与传输业务、本地环路传输业务或其他业务分开定价；平等访问911应急电话、电话指南和话务员呼叫完成业务；享用其他电话公司电话交换服务的电话黄页；平等访问分配给其他电信公司用户的电话号码；平等访问呼叫路径和呼叫完成所需的数据库以及相关信令；电信号码便于记忆；平等访问服务或信息，使电信公司实现本地等位拨号（不需拨打任何接入码即可完成电话连接的功能）；提供相互补偿。

In the proposed device to remedy the defect that overhigh withstand voltage of thyristors used in converter are needed due to the overhigh DC link voltage, a method to control DC link voltage is put forward, that is, a special control logic for full-controllable switching elements is designed to make them equivalent to half-controllable switching elements which are naturally turned on and turned off by triggering, then connecting such a half-controllable switching element in series with DC link the defect of overhigh DC link voltage is effectively solved.

为了克服该装置直流母线电压过高，因而对逆变器开关管耐压要求过高的缺点，提出一种对直流母线电压进行控制的方法。对全控型开关器件设计一种特殊的控制逻辑，使其等效为一个自然导通、触发关断的半控型开关器件，将该半控型开关串联在直流母线上，有效解决了直流母线电压过高的问题。

The ways of parallel resonant DC link and three-level control strategy were used in this power amplifier circuit. Output current ripple of power amplifier can be reduced as three-level power amplifier, all of power switches work on and off under the zero voltage switching or zero current switching, loss of switching and current ripple interference effectively reduced.

该电路在功率放大器三电平控制策略的基础上应用了并联谐振直流环节，保持了三电平功率放大器输出电流纹波小的优点，同时功率器件均工作在零电压或零电流条件下，开关损耗、电流纹波干扰有效地减小。

"Yes, now you can give yourself airs," she said, you have got what you wanted.

"对了，您现在高兴了，"她说道，这是您所期待的。

Then the LORD said to me: Rebel Israel is inwardly more just than traitorous Judah.

上主于是对我说：＂失节的以色列比失信的犹大，更显得正义。