在此基础上对电液比例放大器的控制方法进行了分析并给出了具体电路；
The mathematical models of the proportional solenoids coil current were provided and the control method for electro-hydraulic proportional amplifier was analyzed.
经比例放大器放大后的脉冲信号经窗口电压比较放大器消除干扰给计数器。
Pulse signal of proportional amplifier is sent to counter after reduced noise by window voltage comparer.
放大器输入为电压信号，与光敏二极管产生的光电流信号成比例。调制光柱以断路器同样的频率照射光敏二极管。
The amplifier input is a voltage proportional to the photocurrent signal produced by a photodiode, which is irradiated by a modulated light beam at the same chopper frequency.
本文应用叠加原理分析运算放大器的开环输入电阻对反相比例放大运算精度的影响。
This paper analyses operation accuracy that is influenced by the open input resistance of operation amplifier by means of superposition theorem.
利用比例阀和线性光栅尺配合使用替代伺服放大器和伺服电机实现进给轴的闭环控制。
This paper give an advice that we can realize closed cycle control of feeding shaft by proportional valve and linear grid ruler instead of servo amplifier and servo motor.
一般地，通过比例阀电磁铁地电流由一些形式地电子放大器控制。
Normally, the current flowing through the proportional solenoid will be controlled by some form of electronic amplifier.
本文重点研究智能电液比例控制放大器的可靠性设计问题。
The paper has studied on the reliability of the developed intelligent electrohydraulic proportional amplifier.
因增益与带漏电流和功耗成比例，一个最小漏电流会在MOS场效应管振荡放大器元件能够提供适当的增益用于振荡的时候出现。
Thus, since gain scales with drain current and power dissipation, a minimum drain current exists at which a MOSFET oscillator amplifier element supplies adequate gain for oscillation.
因增益与带漏电流和功耗成比例，一个最小漏电流会在MOS场效应管振荡放大器元件能够提供适当的增益用于振荡的时候出现。
Thus, since gain scales with drain current and power dissipation, a minimum drain current exists at which a MOSFET oscillator amplifier element supplies adequate gain for oscillation.
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