Two kinds of program control signal attenuation circuits, which are used in circuit design, are introduced.
本文介绍线路设计中所应用的两种程控信号衰减电路。
2
Combined with the problems during the experiment, design a improved testing circuit of Direct Current Attenuation Method.
结合试验过程中遇到的问题，给出了改进的直流衰减法测试电路。
3
X1 probe: no attenuation, input impedance follow that of scope input impedance (usually 1 Mohm). This type of probe is seldom used because of heavy loading effect on circuit under test.