The conditions of voltage between contactors and current in main circuit under different using types are analyzed in detail, then designed the control sequences with working mode AC1-AC4.
详细分析了交流接触器在不同使用条件下的闭合与分断时触点两端电压与回路电流情况，并研究了AC1～AC4工作制下的控制时序。
The main performance, interior structure, working principle and application circuit of MAX7033 are introduced in detail.
介绍了MAX7033的主要技术性能、内部结构、工作原理和应用电路。
The principle and construction of the transducer are briefly presented and the working principle, design of the system as well as the main generator and detector circuit are introduced in the paper.
文中简要叙述了换能器的工作原理与构成，给出了测量系统的设计与工作流程，并对主要的超声波发射与接收电路作了说明。
This article summarizes the hardware organization and working principles of the thyristor zeropassage trigger capacity control circuit which have a singlechip as its main body.
本文简述了采用单片机为主体构成的晶闸管过零触发调功装置的硬件构成和工作原理。
Then, through analysis of working principle of the controller, comparison between two current hysteretic control, strategies and design of main circuit parameters are given.
接着，本文介绍了控制器的工作原理，给出了两种斩波控制方式的比较、控制器主电路参数设计和驱动电路设计。
The composition of the inverter, the working principle of full-bridge main circuit, controlling circuit, drive circuit and protect circuit are described.
就其电源的主体结构，全桥主电路、控制电路、驱动电路以及保护电路的工作原理作了简要的论述。
It also introduces the working principle of the SCR adjusting voltage circuit and the starter's main circuit, the hardware structure and functions of the soft starter and the software program design.
阐述了晶闸管调压电路及软起动器主电路的工作原理、软起动器的硬件结构和功能以及软件设计。
This article explains the design idea and basic working principle and the main electric circuit and the principle of its work are also given.
文章讲解了检测系统的设计思想和基本工作原理，给出了控制系统的基本硬件电路图。
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。
In this article, the whole design process of temperature control system is described. The system constitutes frame diagram, hardware circuit, main chip function and working principle are given.
描述了温度控制系统的整个设计过程，给出了系统的组成框图、硬件电路、主要芯片的功能和工作原理。列出了系统的所有软件流程图。
The main structure of power supply, working principles of main circuit and control circuit are described in brief. At the same time, the software of the system is explained.
就其电源的主体结构，主电路的原理及控制电路的工作原理作了简要的论述，同时对系统的软件也进行了简要说明。
Said main circuit can transform the voltage of power supply to working voltages needed by infrared control circuit, music circuit and timer circuit.
所述主回路将电源电压转变为所述红外线控制电路、音乐电路及计时电路所需的工作电压，所述红外线控制电路连接所述透射头。
The problem of annual arc welding power source whose output is surge and power factor is lower, is solved by means of main circuit, arc ignition circuit and arc static circuit working together.
通过主回路、引弧电路、稳弧电路的共同作用，解决了一般弧焊电源输出脉动大、功率因数低的缺点。
The problem of annual arc welding power source whose output is surge and power factor is lower, is solved by means of main circuit, arc ignition circuit and arc static circuit working together.
通过主回路、引弧电路、稳弧电路的共同作用，解决了一般弧焊电源输出脉动大、功率因数低的缺点。
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