The article introduces a kind of dual threshold frequency control circuit for digital control device.
文章介绍了一种数控装置的双门槛频率控制电路。
With fixed frequency control circuit, it provides with over voltage, over current, overheat and short circuit protection.
该系列电源适配器，采用固定频率控制电路，具备限流、限压、过温、短路全功能保护。
Fuzzy control tests of arc voltage and short-circuit frequency are conducted to improve welding quality.
采用模糊控制技术，实现了电弧电压或短路频率的控制，提高了焊接质量。
Some factors affecting the frequency and magnitude of power supply, such as supply voltage, duty of control signal, the resistance and capacitance of oscillation circuit are discussed.
讨论了一些影响放电电压大小及频率的电源参数，如供电电压、控制信号占空比、振荡电路的电阻和电容等。
Some parameters affecting the frequency and magnitude of power supply, such as supply voltage, duty of control sigal. the R and C of oscillation circuit are discussed.
对影响放电电压大小及频率的电源参数进行了讨论，如供电电压、控制信号占空比、振荡电路的R和C等。
This integrated circuit control the frequency and pulse width of the high voltage IC output signal conveniently by adjusting the input date of IC digital input port.
该集成电路通过对数字输入端口的输入数据的调节，灵活的控制了高压开关集成电路输出信号的频率和脉宽。
Line equalizer control method, and integrating circuit, frequency shift circuit and transmission device.
线路均衡器控制方法，积分电路，频移电路和传输装置。
The frequency control principle is discussed, and the designing circuit and test result given, which prove that the solution works.
本文讲述了频率控制原理，给出了实现电路和测试数据，证明了此方法是可行的。
In intelligent peripheral subsystem, Radio Frequency Front Modules include linear power amplifier, low noise amplifier and detection control circuit.
智能天线子系统中，射频前端模块包括线性功率放大器，低噪放大器，检测控制电路。
The lower frequency virtual digital stored oscillograph was designed and researched combining software control technology with interface circuit, software and hardware system were made.
本文以软件控制技术为关键，配以接口电路，研制了超低频虚拟数字存储示波器。进行了相应的软、硬件系统的设计。
In the study of, I introduce the the basic structure of the Frequency Control System, and tell something about how I use intelligent IGBT module IPM to produce the Frequency Control main circuit.
在研究变频调速系统的基本结构中，对变频调速系统的基本结构，以及如何利用IGBT智能模块IPM实现变频调速主电路的进行了介绍。
The paper mainly put forward a new control method of stepping motor which character-, ized by equal-stepped fine division, and then design a constant frequency PWM driver circuit.
提出一种等步距角的细分控制方法，并据此设计了恒频脉宽调制细分电路。
Combining the project of telescope control system, the key technologies such as locking frequency, phase circuit, real_time data collecting, display and hardware interrupt are also presented.
对实现高精度速度控制所采用的关键技术锁频锁相控制方法，计算机的实时数据采集、显示和硬中断等进行了介绍。
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 basic operation principle of the series active power filter for harmonic suppression of frequency converter is analyzed in this paper, and its control method and control circuit are studied.
文章分析了适用于变频器谐波抑制的串联型有源电力滤波器的基本工作原理，并对其控制方法和控制电路进行了研究。
Alternating-direct-alternating circuit is adopted and CPLD is used as logic control device of power IGBT in main circuit of variance-frequency timing system.
变频调速系统主电路采用交-直-交形式，以可编程逻辑器件(CPLD)作为调速系统逆变电路功率开关器件IGBT的逻辑控制器件。
The design of a novel high frequency fluorescent lamp IC, on which low voltage control circuit and high voltage power device encapsulated in one chip, is introduced.
本文介绍了一种高频荧光灯镇流器芯片的设计，在芯片的实现上充分体现了低压控制电路与高压功率器件在单一芯片上的兼容性。
This paper introduces the system of single phase large power source varied frequency for heating, contains rectifier, filter, inverter and control circuit etc.
介绍了大功率单相变频加热电源的系统组成，包括整流、滤波、逆变和控制电路等部分。
This paper introduces a new inversion control circuit based on 80c196mc microcontroller for thyristor medium frequency power supply. Meanwhile the hardware and software designs are also provided.
针对晶闸管中频电源的核心——逆变电路，提出了一种基于80c 196MC单片机的控制电路，给出了其构思的硬件和软件设计。
In the realization of the inverter control circuit, the frequency self-following system with optimal dead time based on DSP is researched.
在逆变控制电路的实现中，研究了基于DSP的具有最佳死区的频率跟随控制系统。
The remote control device crystal frequency stabilization using pulse amplitude modulation transmitter, A simpler circuit, high frequency stability, launched 28MHZ are continuous carrier amplitude.
该遥控装置采用晶体稳频脉冲调幅发射机，电路较简单，频率稳定度高，发射的是间断的28MHZ等幅载波。
The work principle, circuit structure and realization method of control of the ML frequency converter system are discussed. The system USES PWM rectifier to realize reactive power compensation.
论述了运用PWM整流器实现无功功率补偿的ML变频系统的工作原理、电路结构和控制的实现方法。
A circuit topology family of inverters with high frequency pulse AC link and a double polarities phase-shifting control strategy are proposed and deeply investigated.
提出并深入研究了高频脉冲交流环节逆变器电路拓扑族及其双极性移相控制策略。
The latch phase circle circuit NE567 functions as phase demodulation of audio frequency signals for realizing decoding output of the control signals to control the downhole motor operations.
应用锁相环集成电路ne567对音频信号的鉴相原理实现对控制信号的译码输出，控制井下仪器马达工作。
The AC-DCAC voltage source inverter composes the main circuit of this variable frequency system and CPLD is the logic control device of the power device (IPM).
该变频调速系统主电路采用交-直-交形式，以(CPLD)作为调速系统逆变电路功率开关器件(IPM)的逻辑控制器件。
The power supply module provides the control circuit, the drive of frequency conversion circuit, transaction circuit and DSP with different power supply.
电源模块为系统控制电路、变频驱动电路、变送电路、DSP芯片提供不同要求的电源。
The closed circuit control system with frequency conversion for adjusting speed controlled by industrial computer is introduced with its control function and realization.
文章介绍了一种由工业计算机控制的变频调速闭环控制系统，同时介绍了该系统的控制功能和电气实现。
The temperature control module's basic theory and the implement of temperature control circuit, which is cooperated with the RF control module to make the frequency steady, are also introduced.
包括射频模块的控制原理以及具体电路的实现，以及用来配合射频模块更加稳定工作的温度控制模块的控制原理和具体电路实现。
Setting open-circuit frequency and voltage algorithm for steady-state control power flow .
稳态控制潮流的设定空载频率及空载电压算法。
Variable frequency altering-speed system of supplying water for high building using PLC control was designed by double-channel integral circuit.
应用电子技术按设定频率上、下限实现自动转换的双通道积分电路，并按此设计PLC控制的变频调速高楼供水系统。
应用推荐