The hydraulic amplifier is the hydraulic control system based on the theory of hydraulic drive and automatic control.
液压放大器，是在液压传动和自动控制理论基础上，建立起来的一种液压控制系统。
2
Other features include an integrated buffer to drive the reference as well as a fully differential amplifier to buffer and level shift the input to the modulator.
其它特性包括：集成缓冲用来驱动基准电压，以及集成完全差动放大器用来缓冲调制器输入并进行电平转换。
3
To control stepping motors, the balance bridge power drive circuit is made up by TDA1521 integrated audio power amplifier, the pulse allotter is made up by the parallel ports of computer and latches.