3、运算放大器[归.pdf
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1、北师大珠海分校电子创新实验室2011 年暑期培训刘琨1.闭环增益计算放大电路的闭环增益时,采用拉氏变换:电容的阻抗:电感的阻抗:例题:计算如下图的闭环增益。2.放大器电路稳定性稳定性用放大器的频率响应,利用波特图分析。放大器的频率响应:放大器对不同频率的正弦信号的稳态响应,用放大器的放大倍数对频率的关系表示。对等式两边取对数20lg|A(j)|=20lg|1/F(j)因此,在波特图(幅频响应图)中,曲线20lg|A(j)|和 20lg|1/F(j)曲线相交时,对应频率处的相角180例题:从下图看系统是否稳定?文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编
2、码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V
3、8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编
4、码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V
5、8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编
6、码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V
7、8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编
8、码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V
9、8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编
10、码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V
11、8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编
12、码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V
13、8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编
14、码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J43.自激振荡的消除相位补偿技术测试:没有输入信号时,输出端用万用表总能测试到一个固定的电压。用示波器可看到无需要的信号叠加在有用信号上。不需要的信号可能是自激振荡,也可能是噪声。1、滞后补偿文档编码:CC7
15、T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3
16、 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7
17、T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3
18、 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7
19、T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3
20、 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7
21、T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4补偿产生附加相移,使闭环相位增加滞后补偿会导致放大器带宽变窄,只适合对带宽要求不高的场合。2、超前补偿补偿产生附加相移,使闭环相位减少超前补偿使放大器带宽变宽。3、滞后-超前补偿4、内部补偿芯片厂商已经将补偿电路制作在集成电路内部,引出补偿端。按数据表要求,在补偿端加补偿元件。相位补偿难点:文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档
22、编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7
23、V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档
24、编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7
25、V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档编码:CC7T3F3E8U5 HT3U7V8W1S3 ZL2Z5H1H5J4文档
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