一、是非题 1、只要集成运放引入正反馈,就一定工作在非线性区。() 2、当集成运放工作在非线性区时,输出电压不是高电平,就是低电平。() 3、运算电路中一般均引入负反馈。()

一、组成和反应 1化学能转化为电能的装置

1.1半导体与二极管 1.2特殊二极管 1.3半导体三极管 1.4场效应管

一、静电平衡时导体上电荷的分布 (electrostatic equilibrium) 1实心导体∵E=0

The voltage division The current division

Let=R3 and The result we have found for two /R =k, we have inputs may be extended to any v2=-k(v1+3) number of inputs

We select one node as a reference node and then define a voltage between each remaining node and the reference node

The ideal voltage source and a series resistance comprise a practical voltage source

Any given arm of the Y network is found by taking the product of the two adjacent arms of the network and dividing by the sum of the network arms

The series combination of voltage sources: Several voltage sources in series may be replaced by an equivalent voltage source having a voltage equal to the algebraic sum of the individual sources