Description: 电力系统静态电压稳定性在线监控一——一种可在线应用的计及负荷静态特性的电压稳定指标-static power system voltage stability of an on-line monitoring -- An online application program and load characteristics of static electricity pressure stability index Platform: |
Size: 232987 |
Author:娱乐 |
Hits:
Description: 电力系统静态电压稳定性在线监控一——一种可在线应用的计及负荷静态特性的电压稳定指标-static power system voltage stability of an on-line monitoring-- An online application program and load characteristics of static electricity pressure stability index Platform: |
Size: 232448 |
Author:娱乐 |
Hits:
Description: 可变增益放大器是模拟单元电路之一,起着变化增益、调整信号动态范围、稳定信号功率的作用。文章综述了CMOS集成可变增益放大器的研究情况 给出了可变增益放大器的定义、应用、分类和主要指标,描述了多种开环和闭环放大器的结构,分析了相应的增益控制方法及其优缺点 说明了在CMOS工艺下实现放大器增益按指数变化的几种途径。最后,介绍了用于无线数字通信,具有宽带、高线性、低电源电压等高性能可变增益放大器的设计实例。-Variable gain amplifier circuit of the analog unit, a change is the gain, adjust the signal dynamic range, stability and the role of signal power. This paper reviews the CMOS integrated variable gain amplifier of the situation given the definition of a variable gain amplifier, application, classification and key indicators, describes a variety of open and closed loop amplifier structure, analysis methods and the corresponding gain control The advantages and disadvantages illustrates the CMOS process to achieve changes in amplifier gain in several ways according to index. Finally, introduced for wireless digital communications, with broadband high linearity and low supply voltage high-performance variable-gain amplifier design examples. Platform: |
Size: 328704 |
Author:bird |
Hits:
Description: 运用连续潮流发求解静态电压稳定指标负荷裕度-Made use of a continuous trend of the load of solving the static voltage stability margin index Platform: |
Size: 3072 |
Author:肖岩 |
Hits:
Description: J05E 是一款特小体积，超低功耗,平时输出为零电平（没有干扰）的超外差接收模块,工
作在315M/433.92M 频段。芯片内含稳压电路，具有较宽的工作电压范围 ，芯片高度集成了超外差接收电路的所有功能，具有较高的接收灵敏度和稳定性。芯片杂波辐射指标符合欧洲或北美管理标准。模块天线输入端口增加了微带电感有效提高了抗静电能力，产品一致性比J05U 有很大的提高，引脚功能与 J05U 完全兼容，是 J05U 的升级替换产品。-J05E is a special small size, low power consumption, usually zero output level (no interference) superheterodyne receiver module, work in 315M/433.92M band. Chip embedded voltage regulator circuit, with a wide operating voltage range, highly integrated chip all the functions superheterodyne receiver circuit with high receiver sensitivity and stability. Clutter radiation chip index in line with European or North American management standards. Module increases the microstrip antenna input port inductance effectively improve the antistatic ability is greatly improved product consistency than J05U, pin functions are fully compatible with J05U is J05U upgrade replacement product. Platform: |
Size: 420864 |
Author:liqi |
Hits:
Search - voltage stability index