The application of automaticcontrol principle to the design of such a source makes the required amplitude stability possible.
应用自动控制原理来设计这种恒流源，可以获得必要的幅度稳定性。
2
This paper introduces a stable amplitude bipolar current source. It was designed basing on the principle of automaticcontrol. This circuit is suitable for continuous casting slag detection.
本文介绍一种稳幅式双极性电流源，它是根据自动控制原理设计而成的，用于连续铸造熔渣的检测。
3
This paper describes the defect of amplitude-comparison discriminator in direction-finding system in PRS, then put forward a compensating method of digital automatic gain control.