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- By using the forward ac small signal method we tested the electricalcharacteristics of LEDs of different kinds and functions. The experimentalresults show that negative capacitance phenomenons exist in mostsemiconductor LEDs. 采用正向交流小信号方法,对大量不同种类、不同功能的发光二极管的正向交流电特性进行了检测,检测结果表明发光二极管中普遍存在着负电容现象。
- forward alternating current small signal method 正向交流小信号方法
- forward alternating current (ac) small signal method 正向交流（ac）小信号方法
- Small Signal Method 小信号法
- . We tested the electrical characteristics of LEDs using the forward ac small signal method based the series and parallel modes, and the experimental results show that there are negative capacitance in most semiconductor LEDs. （2）、采用基于并联和串联模式的交流小信号法对半导体发光二极管的正向交流电特性进行了检测，测试结果表明半导体发光二极管中普遍存在着负电容。
- 2 By using the forward ac small signal method, we tested the electrical characteristics of LEDs of different kinds and functions in frequency between 20Hz and 100kHz and analyzed the experimental results in different voltage regions systemcally. 采用基于并联模式的交流小信号法,在20Hz至100kHz的频率范围内,对半导体发光二极管的正向交流电特性进行了检测,并对实验结果进行了电压分段讨论。
- Thermal tests, small signal tests, and stress analysis test. 电源模块热、小信号、应力分析测试。
- We also obtain the small signal gain and carry out some discussion. 对获得的小信号增益也进行了一些分析和讨论。
- Purpose: General small signal amplifier applications. 用途:用于一般小信号放大。
- Any small signal TR having turn-on Vbe of about 0.66 will work. 任何小信号的三极管只要使Vbe大约0.;66V就可以工作。
- A Small signal model set up through the aid of state space average method can do a world of good for Conducting high frequency Switching Power supply stable analysis. 推证出用状态空间平均法建立小信号模型对高频开关电源进行稳定性分析的方法。
- The gain coefficient of the conventional G. 652 Single Mode Fiber (SMF) is measured and the measurement result is compared with that by the small signal gain method. 测量了G.;652光纤的增益系数，并与小信号增益法的测量结果进行了比较。
- A method for the design of the broadband power amplifier by small signal approach is introduced when large signal models of devices can not be acquired. 摘要文章介绍了一种在无法获取器件大信号模型的情况下采用小信号法设计宽带功率放大器的方法。
- Method1582student s who are16to23years old in a college were investigated by the signal method of Palmer dental site. 方法采用帕尔曼牙位标志法记录,对1582名16-23岁学生进行调查。
- By using the classic automatic control theory and the small signal model of the power system with HVDC, a SSDC design method based on best phase compensation and modal separation is proposed. 以含HVDC电力系统的小干扰数学模型为基础，结合经典自动控制理论，提出了一种基于最佳相位补偿和模态分离的SSDC设计方法。
- Delay margin is defined as the maximum time delay that system can sustain without losing its small signal stability. 在保证小扰动稳定前提下,电力系统可承受的最大时滞称为时滞稳定裕度。
- Vibratory silicon micromachined gyroscopes need to check extremely small signal from all kinds of noises. 振动式硅微陀螺仪要在各种噪声干扰下,检测出极其微弱的有用信号。
- This thesis extracts a small signal equivalent circuit model from a Gallium Arsenide MESFET device. 因此本论文研究在槽线架构下，不同馈入方式在频率响应上的影响。
- Besides, different from former theories, latest small signal model and analysis are elucidated as well. 另外有别于之前的理论，新的小讯号模型与分析将会被介绍。
- A new test signal method based approach to design power oscillation damping (POD) controller for TCSC is proposed, by which the bulky eigenvalue calculation of state matrix can be avoided. 提出了一种基于测试信号法的TCSC功率振荡阻尼(POD)控制器的设计方法,避免了计算量庞大的状态矩阵特征值计算。该方法由3步组成:第1步,利用测试信号法辨识出电力系统的区域间振荡模式和设计POD控制器所需要的信息;
