The wire feeder timing system consists of MOSFET switch control circuit, PWM circuit and control circuit.
送丝调速系统由功率MOSFET开关控制电路、脉宽调制电路及控制电路构成。
The system also includes a switch control circuit to switch the MOSFET switches in synchronization with the three-phase current flow.
本系统还包括开关控制电路，用于与三相电流同步切换MOSFET开关。
The safety switch can be an electrical switch that opens the control circuit if the car is in gear.
安全开关可以是一种电子开关，当汽车挂挡后，它断开控制电路。
Use relays, contactor, button, air switch and travel switch etc low-voltage constitute control circuit called relay contact control circuit.
使用继电器、接触器、按钮、空气开关、行程开关等低压电器构成的控制电路称为继电接触控制电路。
In that case, poor control room indicators led plant officials to switch off the circuit which would have cooled the reactor core.
在这起事故中，低劣的控制室指示器指引电站工作职员封闭了为反应堆芯堆降温的回路。
In the design, to produce circuit TL494 as a PWM output control signals, control of the on-switch situation, the half-bridge flyback output on the basis of the power of multi-output.
在设计中，以TL 494作为PWM产生电路输出控制信号，控制开关管的导通状况，在半桥反激式输出的基础上实现了电源的多路输出。
The paper introduces the principle of switch power which is composed by current control type PMW UC3842 and analyzes the shortage of protective circuit and proposes an improving idea.
本文介绍了以电流控制型脉宽调制芯片uc 3842构成的开关电源的原理，分析了其保护电路的缺陷，并提出了一种改进的思路。
This paper describes using large scale integrated circuit—switch capacitatice filter (SCF) as basic components, taking out the characteristic of speech and making up microcomputer into control centre.
本文利用大规模集成电路一开关电容滤波器SCF作为语音特征提取的基本组件，以微机为控制中心，设计了时分复用动态语谱分析系统。
The intermittent control of wipers is related to the control switch, control relay and its control mode of the wipers operating circuit.
刮水器间歇控制与刮水器控制开关、刮水间歇控制继电器及其在刮水器工作电路中的控制方式有关。
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。
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。
The structure and function of a large-scale switch matrix which based on I2C bus are introduced, and its test circuit structure and control circuit structure are given.
介绍了一种基于I2C总线的大型开关矩阵结构及其功能，给出了其测试电路结构组成及控制电路组成。
This paper introduces the automatic control circuit time in turn driven by inverter with the using and the reserved load and combined switch connection.
介绍变频器驱动一用一备负载的自动定时轮换控制电路及组合开关联接。
This system was composed of a temperature controlled tank , switch measurement circuit , temperature control circuit , interface circuit , an industrial manipulative computer, and so on.
本文介绍了温度继电器自动测试系统的设计，此系统由温控箱、开关量检测电路、温度控制电路、接口电路及工控机等硬件组成。
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。
Pre-wired and tested controls which include control circuit, high and low pressure safety switches, 24 volt control circuit, flow switch & ETL Listed.
预有线和测试控制，包括控制电路，高低压安全开关，24伏的控制电路，流量开关。
Low or high pressure switch - turns off control circuit when water pressure drops below a set minimum, or above a set maximum.
低压或高压开关- - -用于当水压降低到预先设置的最低值或超过预先设置的最高值时，切断控制电流。
Every charging circuit possesses "backlash" control function which can avoid the vibration of static switch.
各路充电电压检测具有“回差”控制功能，可防止静态开关进入振荡状态；
Because of introduction of the additional switch, the control circuit of the converter becomes complex and the amount of the added parts and cost increases.
但是有源软开关技术因为有辅助开关管的引入，控制电路比较复杂，增加的额外元器件较多，变换器成本增加。
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。
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。
Comparing with another control methods, OCC have more simply controlling circuit and constant switch frequency.
与其它控制方式相比，OCC优势在于其控制电路结构简单，且高频开关的开关频率是恒定的。
The primary circuit has the form of double switch forward of feedforward control, the second circuit used the magnetic amplifier as the post regulator.
该分布式电源系统采用高频母线形式，原边电路采用双管正激电路，电压前馈控制，后级利用磁放大器精确控制。
Based on the batch idea, switching function, and the driving relative between element and switch, a computer method for analyzing delay control circuit is implemented.
基于以上两点，再利用继电控制线路图上表达出的驱动元件与开关之间的关系，实现了对继电控制系统的功能仿真。
In this plan, the power source system was make up of by the digital control circuit part and current adding switch part and constant current source part.
此方案中的电源系统由数字控制电路、电流叠加开关和恒流源组成。
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。
The volume control circuit is composed of a programming switch and a computer storing magnifying executive circuit, and can realize the automatic alarming volume control.
音量控制电路由编程开关、电脑存储放大执行电路构成，可实现报警音量自动控制；
The data of overlapped characters and pictures are stored in the ROM of FPGA, The Times are generated by FPGA inner logic circuit to control the switch of TV channels to finish the overlapping work.
该方案将被叠加的字符或图像数据保存在FPGA内部的ROM中，由内部逻辑控制电路产生点阵时序，控制视频通道切换开关，完成叠加功能。
A shell body is arranged outside the frequency converter control circuit and is provided with a wiring terminal, a control switch, an indication light and a displaying screen.
所述的变频器控制电路外部设置有壳体，在壳体上设置有接线端子、控制开关、指示灯和显示屏。
A shell body is arranged outside the frequency converter control circuit and is provided with a wiring terminal, a control switch, an indication light and a displaying screen.
所述的变频器控制电路外部设置有壳体，在壳体上设置有接线端子、控制开关、指示灯和显示屏。
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