ZVS is achieved for each main switch without any auxiliary circuit. Voltage stress of each main switch is a half of input voltage.
每个主开关电压应力是输入电压的一半，并且全范围实现ZVS而不用附加任何电路。
When the arm runs to the upper and lower two limit position, respectively press the lower limit switch, cut off the main control circuit, variable amplitude motor parking, to limit the role.
当臂杆运行到上下两个极限位置时，分别压下限位开关，切断主控电路，变幅电机停车，达到限位的作用。
This paper introduces the main qualifications, overall design, hardware circuit diagram and software design of a new protector that can be used in the feeder switch in the shafts of the coal mines.
介绍了煤矿井下用于馈电开关的一种新型保护器的主要技术指标、总体设计、硬件电路框图和软件设计。
This paper introduces a new vacuum load - breaking switch with main and auxiliary circuit, which is of lower current chopping level, higher transferring current.
介绍了一种新型带有主、辅电路的真空负荷开关，它具有低截流、高转移电流。
The structure and theory of main circuit, control circuit and protection circuit of modularized charge power supply composed by IGBT high frequency switch tubes are introduced in this paper.
介绍了利用高频开关管IGBT构成模块化充电电源的主电路、控制电路及保护电路的结构、原理。
This paper presents an intelligent Multi-Function Switch used in dig working face of coal mine, which be constituted by the main electric circuit and the control electric circuit.
本文介绍了一种煤矿掘进工作面用智能型组合开关，由主电路和控制电路组成。
The Digital Program Control Switch System, which based on the circuit switch, is still the main means of telecommunication field and plays an important role in the telecom network system.
以电路交换为基础的程控交换技术在当前的通信网中占有重要比重，它仍是当前通信的主要手段和研究内容。
It is designed that the main circuit and control system using the IGBT as its switch element based on the DC750V traction transducer of metro vehicles. The system is also simulated by MATLAB/SIMULINK.
以地铁车辆用DC750V牵引变频器为例，采用IGBT作为主要开关元件设计了逆变器主电路及控制系统，并利用MATLAB/SIMULINK进行了仿真。
A new sort switch topology of two-switch forward converter and xenon-lamp simmer circuit was designed, the principle of their main circuit was analyzed and some key parameters were calculated.
设计了一种双正激电路的软开关和预燃电路，分析了它们的工作原理，推导了一些关键技术参数的计算公式。
The strong electromagnetic interference generated in high power TEA CO2 laser system mainly comes from the main discharge circuit, pulse spark switch and power supply.
大功率TEACO2激光器系统产生的强电磁干扰主要来源于激光器主放电回路、脉冲火花开关和电源。
Its main return circuit adopts thyristor contactless switch, so can turn off circuit quickly, precisely and reliably.
该系列点焊机主回路均采用晶闸管无触点开关，电路关断时间快、准确、可靠。
In the main circuit, the inverse parallel couple SCRs (silicon-controlled rectifier) are used as a electric switch, switching the transformer of resistance spot welding.
主电路以反并联的晶闸管作为控制开关，控制焊接用的电阻点焊变压器通电与否。
Main circuit adopts the AC-DC-AC structure and uses IPM(Intelligent Power Module) as main switch.
主电路采用交—直—交电压源型变频器，功率器件采用智能功率模块IPM。
The main circuit USES the double barrel pair to stir up the topology, and USES the pulse electric current comparison control technology and soft switch technology.
主电路采用双管双正激拓扑结构，采用了逐脉冲电流比较控制技术和软开关技术。
The high frequency switch circuit taking IGBT as main switch component are driven by the special purpose driver EXB840 controlled by TL494.
以igbt为主开关元件的高频开关电路，由TL 494控制的集成专用驱动器exb840驱动。
ZCS circuit is adopted to reduce the loss of the main switch when switch off.
减小主开关管关断损耗采用了零电流关断电路。
In the Stage of R4, ATM and IP become main medium of circuit switch instead of TDM, which make codec modes of core network more agility.
在R4阶段，ATM和IP承载渐渐取代TDM承载成为电路域的主要传播媒介，这两类传输媒介的引入使得核心网采用的编解码方式更加的灵活。
The flyback mode switch power supply is chosen as the main circuit of the high voltage power in the paper with 555 pulse control circuit and flyback drive circuit.
选择了反激式开关电源作为高压电源的主电路，并以555脉冲控制电路和反激式驱动电路作为辅助电路。
The main electrical circuit adopts the diode thyristor (SCR) contactless switch, to make sure the circuit switch time rapidly, accurately.
电气主回路采用二极管可控硅无触点开关，电路开关时间迅速，准确。
Abstract: the circuit breaker as the main switch equipment transformation equipment, its normal operation or not relates to the whole of the safe and stable and reliable operation of the power grid.
摘要：断路器作为输变电设备的主要开关设备，它的正常运行与否关系着整个电网的安全稳定可靠运行。
Abstract: the circuit breaker as the main switch equipment transformation equipment, its normal operation or not relates to the whole of the safe and stable and reliable operation of the power grid.
摘要：断路器作为输变电设备的主要开关设备，它的正常运行与否关系着整个电网的安全稳定可靠运行。
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