负反馈放大电路增益的一般表达式因为end增加一前置级 闭环输入电阻 Rif=viii 引入并联负反馈后输入电阻减小了 对输入电阻和输出电阻的影响所以减小输出电阻稳定输出电压1. 深度负反馈的特点输入量近似等于反馈量虚断 实际上该电路就是第2章介绍的同相比例放大电路该结果与第2章所得结构相同解: 闭环增益 电压并联负反馈
§75 Equivalence Relation 1 Introduction(a) Example -1 (Register for Classes)A to G----------------- 8 AM~11 AM H to N----------------- 11 AM to 2 PM,O to Z------------------2 PM to 5 PM Relation R--
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abcd灭灯00合与逻辑符号 电路状态表合电源01灭AAA0不通电0A 两输入变量或非 逻辑真值表1B 异或逻辑真值表0AA1B
§75 Inclusion-Exclusion (容斥)Introduction Example 0 (page 499) A discrete mathematics class contains 30 women and 50 sophomores (二年级学生) How many students in the class are either women or sophomoreSolut
s§95 Euler and Hamilton PathsIntroductionSee page 6332 Euler Paths and Circuits (1) IntroductionThe seven bridges of Konigsberg Please see Figure 1 and Figure 2(page 633) (2) Definition 1 (page 633) A
Steeven JobsBill GatesDing Lei光盘截面示意图 1. This disk is much like the tape inside a video or audio cassette. Take a look at the floppy disk pictured. At one end of it is a small metal cover with a recta
Click 2Prominent Packet switches:Routers (network layer)Link-layer switches (link layer)A packet switch takes a chunk of information arriving on one of its iingmunication links and forwards th
单击此处编辑母版标题样式单击此处编辑母版文本样式第二级第三级第四级第五级5.3 结型场效应管 5.3.1 JFET的结构和工作原理 5.3.2 JFET的特性曲线及参数 5.3.3 JFET放大电路的小信号模型分析法 5.3.1 JFET的结构和工作原理1. 结构 符号中的箭头方向表示什么2. 工作原理① vGS对沟道的控制作用当vGS<0时(以N沟道
一等效电路减小极板厚度d①例3-3 电容测厚传感器在板材轧制装置中的应用8精度:10um范围:0 150mm
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