RC桥式振荡器的一种分析方法

通过对RC桥式振荡器的振荡方程的导出和求解，更加全面地对RC桥式振荡器作进一步的分析。     

RC桥式正弦波振荡器的实践分析

RC桥式正弦波振荡器在文献中也称之为RC文氏电桥式振荡器,由选频、反馈、放大和稳幅四个部分组成。在实用电路中往往将选频网络和正反馈网络合二为一,并采用两级放大,目的不仅是满足了振荡所需要的相位条件,而且还具有放大和稳幅的作用。RC桥式正弦波振荡器是一个输出外供信号的信号源,上电后就能输出一定频率的正弦波电压信号,但振荡信号频率较低,一般在1MHz以下。     

简论对桥式RC振荡电路的改进

本文基于理论分析,对于对桥式RC振荡器,提出Wien氏正反馈选频网络不是唯一的形式,另有具备一定优势的选频网络可供用,进而提出增大网络元件比值可以明显地提高振荡器的固定本领,即明显地提高振频的稳定度;亦能更加抑制振荡信号中的谐波分量。     

RC正弦波振荡器多功能实验电路

本文介绍一种RC正弦波振荡器多功能实验电路 ,对该电路进行组合变换 ,可获得相移RC、双TRC、文氏桥RC正弦波振荡器实验电路 .     

RC移相式振荡器的研究

在研究RC移相电路的基础上,推导了分立和集成移相式RC振荡器的振荡条件和振荡频率公式,指出了超前和滞后移相式RC振荡器计算公式的细微差别.     

环形振荡器的分析与仿真研究

在分析环形振荡器电路的基础上,提出了基于Multisim的环形振荡器仿真实验方法。通过修改仿真设置,使带RC延迟电路的环形振荡器仿真实验可行,仿真结果与理论值和实际电路实验结果也较为吻合。进一步对变形的带RC延迟电路的环形振荡器(oscillator RC)进行了理论分析和实验设计,使Multisim仿真实验可不修改仿真设置,并经过仿真实验和实际电路实验,验证了该电路仿真实验的可行性。     

基于MATLAB的三种RC电路频率特性实验

为更好地展示频率对电路特性的影响,结合实际工程应用,设计了三个仿真实验,即一阶RC串联电路的滤波分析,二阶RC串并联电路的选频分析和RC桥式电路的移相分析。在理论分析的基础上,通过MATLAB仿真实验,帮助学生对相关教学内容建立感性认识,加强对电路理论的认知和理解。     

浅议电学中的“桥”式电路

在学习电学时常遇到"桥"式电路,常见的有惠斯通电桥、桥式整流电路和RC桥式振荡电路.它们是电学中的典型电路,在教学中是重点,下面对常见的"桥"式电路的工作原理和实际应用及电路故障发生情况进行分析.     

RC桥式正弦波振荡电路中反馈深度研究

章通过对RC正弦波振荡器中反馈量与R、C参数关系的讨论，分析了R、C参数数值对反馈量的影响，以及对其放大器性能的影响。     

多谐振荡器基本工作原理浅析

处理脉冲信号的脉冲电路,在师专电子技术基础教学大纲中,主要要求讲清基本单元电路的工作原理.由于脉冲电路的分析方法与一般正弦波电子电路有所不同,加之教学时数少,学生掌握脉冲电路工作原理的分析方法还是比较困难的.为了解决这个问题,作者认为多谐振荡器工作原理的分析方法,对一阶RC系统的脉冲电路有一定代表性,有必要对多谐振荡器工作原理作比较详细的分析.     

卡思卡特城堡

It is worthy of noting that, whilst Crookston Castle witnessed the earlier and happier portion of Mary's variegated life,     

不同的吃喝玩乐

一、吃和喝吃苹果 eat an apple, 吃药 take medicine,吃糖 have some sweets,吃饭 have one's meals,吃馆子 dine out,吃惊 be surprised/     

漏洞百出的教育

Many college freshmen arrive woefully unprepared to do college work, and as disadvantaged populations continue to grow, the share of the American work force that has made it through college is expected to plummet. Many experts blame that educational failure not just on high schools but also on colleges. School & College, a special report by The Chronicle, looks at efforts to fix the system. What reforms would better prepare students for college? What should schools and colleges be doing differently? How should state and federal officials help?     

Western and Eastern culture differences in commercial field

The communication of people partially is the communication of cultures. Culture has a direct effect on international commercial activities in all aspects. Different conceptions about time, space, equality, law and the like, lead people to deal with things in different ways. So to know cultures of the counterpart is to facil-itate our enterprises so as to have a smooth and successful communication in commercial activity.     

只要努力,不要后悔

There are numbers of crossroads on our long and unpredictable life journey where we totally have no idea about which direction to choose. No matter what our decision is, we should not turn back, but face the music and go ahead instead. I am this kind of girl who always does try without regretting, one example is how I dealt with my love.     

浅谈移民问题

Migration occurs behind a variety of reasons and has a great effect on the whole world. People may migrate in order to improve their economic situation, or in order to escape civil strife, persecution, and environmental disasters. The impact of migration is complex, bringing both benefits anddisadvantages. This paper briefly talks about the causes of migration, the allocation of benefits, and the ways in which individual countries and the international community deal with this important subject.     

风的曲线

Rosco and I wait for the fishermen to return.I sit at a wooden bench near the store at Mt.Baker Resort and watch the clouds change shape. Rosco has my belt around his neck and an eight foot tow chain hooked to a tree. Dogs must be on a leash. Ducks and rabbits are loose.     

团图为数的图中的闭团贯数

Given a graph G,a subgraph C is called a clique of G if C is a complete subgraph of G maximal under inclusion and |C|≥2. A clique-transversal set S of G is a set of vertices of G such that S meets all cliques of G. The clique-transversal number, denoted as TC (G), is the minimum cardinality of a clique-transversal set in G. The clique-graph of G, denoted as K (G), is the graph obtained by taking the cliques of G as vertices, and two vertices are adjacent if and only if the corresponding cliques in G have nonempty intersection. Let F be a class of graphs G such that F={G|K(G) is a tree}. In this paper the graphs in F having independent clique-transversal sets are shown and thus TC (G)/|G|≤1/2 for all G ∈ F.     

Sister Carrie, an Adherent of Desires

Sister Carrie is one of the most controversial characters in American literature.Thought as a "fallen woman" firstly,she was defined as a "new woman" by some critics later. However, by digging into the motivaton behind the whole process of Carrie's "success", the relationship between Carrie and her creator (the author), the social conditions of then American, it can be found that Carrie has never been free-standing on her thought and she has never found her real-sdf even after becoming a famous actress. In a society dominated by mass consumerism Carrie is only an adherent of her own desires. She also is a representative of all those country girls flooded into cities, a symbol and a sacrifice of the urbanization of America in a time countryside was overcome by cities.