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- main circuit of transmitter 发射机主回路
- The main circuit of the wire-incisory pulse power with PWM energy-controlled electric spark serves as a closed loop. PWM控制节能式电火花线切割脉冲电源主电路是一个电流闭环控制系统,放电电流的动态特性是影响电火花线切割加工工艺性能的重要因素。
- The paper analyzes and designs the main circuit of high-power IGBT inverted air plasma cutting power supply. 对一种大功率IGBT逆变式空气等离子切割电源的主电路进行了原理分析与设计。
- In the industrialized application of APF, one of the key techniques is the device protection of main circuit of APF. 在有源电力滤波器的推广应用中,主回路开关器件的保护电路是其中关键的技术之一。
- A main circuit of thyristor arc welding power source is designed and its working course is analyzed in this paper. 设计了一种晶闸管整流式平特性弧焊电源主电路，分析了其工作过程。
- The main circuit of a dual voltage alternator is given and its principle is discussed. 首先给出双电压发电机系统电路图,并介绍其工作原理。
- The control model and main circuit of the power supply, the construction of control system and simulation result is presented respectively. 确定了电源的控制模型和主电路结构形式,以及控制系统的组成,并给出了仿真结果。
- Two main problems in designing the main circuit of switching mode excitation controller are peek voltage and over current of switching device. 开关式励磁调节器主回路设计中需要考虑的两个主要问题是开关器件的尖峰电压和冲击电流。
- The thyristor triphase-bridge full controllable rectification circuit is taken as main circuit of the system and the trigger circuit with saw-tooth synchronism signal is adopted. 该系统以可控硅三相桥式全控整流电路构成系统的主电路，采用同步信号为锯齿波的触发电路。
- In the system,Intel 80C196MC is used as control center and IPM is used as an intelligent power device in the main circuit of AC DC AC voltage type inverter. 该系统以80C196MC为控制核心，采用IPM智能功率模块为功率元件，组成了交?直?交电压型逆变器主回路。
- If we want use it in the high speed situation, more thyristors must be used.It will add the complexity of the control system and the main circuit of the cycloconverter. 如果要扩大交-交变频器的使用范围，使其适用于转速较高的场合，就必须采用更多脉波数的整流方式，但是这又会大大增加变频器控制的复杂程度，所以很少采用多于12脉波的整流方式。
- The circuit of the city walls is three miles. 环绕本市城墙的周长是三英里。
- The Boost Convertor is chosen as the main circuit of the APFC system, and its small-single model is built. This lays the foundation of the analysis of the APFC system on the aid of computer. 本文选用Boost型变换器作为APFC的主电路,并建立了其小信号模型,为系统的计算机辅助分析打下基础。
- The metal detector consists of transmitter unit and receiver unit. 该金属探测仪主要由发射机单元和接收机单元组成。
- This paper introduce working principle and main circuit of DC-arc of plasma generator CVD. the control of temperature and particle size of nanometal powder and metal oxide nanoparticle are analyzed. 介绍了等离子体发生器化学气相反应法(CVD)的工作原理和直流电弧主电路,并对此法制备金属纳米和金属纳米氧化物过程中温度、颗粒形态的控制进行了分析。
- Digital welding machine now becomes more and more popular,it adopts DSP as controlling kernel for triggering the main circuit of the new kind of twelve-phase SCR CO 2 shielded welding machine. 介绍了一种晶闸管弧焊电源用新型无同步变压器的同步控制电路,实现了对自然换相点的精密同步控制,并能跟踪自然换相点的漂移,克服了传统同步控制电路的不足。
- The rocket did one circuit of the earth and returned to base. 火箭绕地球运行一周后返回基地。
- The earth takes a year to make a circuit of (ie go round) the sun. 地球绕太阳一周需要一年时间。
- She ran four circuits of the track. 她在跑道上跑了四圈。
- Topologies of Main Circuits for AC. 几种交流稳压电源主电路拓扑。
