查询词典 feedback amplifier

INTEGRATOR, An operational amplifier whose output voltage is determined by the input voltage, the input resistance, the feedback capacitance, and time differential.

积分器，由输人电压，输人电阻，反馈电容和时间微分而决定其输出电压的运算放大器。

Selecting Distributed Feedback Laser Diode as light resource and the gas absorbing cell with fiber pigtail as its sensor, and using lock in amplifier to distill signal and harmonic measure technology to process that distilled faint signals, we design an instrument of remote and on-line measuring acetylene.

选用分布反馈式半导体激光器作为激发光源，带尾纤的气体吸收气室作为传感器的探测头，以及锁相放大器来提取信号，并通过谐波检测技术对所提取的微弱信号进行处理，设计了一套远距离在线测量乙炔气体的监测仪器。

This simple definition ignores the fact that amplifier output impedance usually varies considerably across the audio band, increasing with frequency as the negative feedback factor falls; this indicates that the output resistance is actually more like an inductive reactance.

这个简单的定义忽略了功放输出阻抗通常是随着音频带而变化，负反馈因素降低的时候频率也增加这一事实。这就意味着输出电阻实际上更像是一个电感电抗。

The amplifier has additional modulation and demodulation,and has the advantage of smaU input bias current, low maladjustment voltage and temperature excursion, exact feedback speciality and high common mode control ratio.

具有输入偏置电流小，低失调电压和温度漂移以及精密的反馈特性和高的共模抑制比能力。

Because the input and output resistance of the CMOS complementary amplifier decreases owing to the negative feedback resistor,the voltage swings are reduced,and the response time of the current comparator is short and the speed is fast.

由于CMOS互补放大器的负反馈电阻降低了它的输入、输出阻抗，从而使电压的变化幅度减小，所以该电流比较器具有较短的瞬态响应时间和较快的速度。

In the forth chapter the series negative feedback and interstage mismatching are presentation, and a low noise amplifier whose operating frequency is 1.5GHz～1.8GHz is developed.

第四章详细介绍了源极串联负反馈和级间失配法，并设计和制作了1.5GHz～1.8GHz低噪声放大器。

There are two loops in the control circuit which the feedback of the output voltage is the outer loop. In this loop there is a voltage error amplifier, a squarer, a divider and a multiplicator.

控制电路采用双闭环，外环输出电压反馈构成电压环，由电压误差放大器和一个平方器，一个除法器，及一个乘法器构成。

In Figures 9 and 9, the feedback path is routed around the amplifier.

下面是一些值得借鉴的实践经验

The circuit utilizes charge redistribution technique and consists of analog function blocks such as operational amplifier with feedback, sample and hold circuit and logic discrimination circuit, etc.

该混沌函数以电压作为迭代变量，电路采用了负反馈形式的运放、采样保持电路和逻辑判断电路等模块，并运用了电荷再分配技术。

When this network—the Wien Bridge—is used as a positive feedback element around an amplifier, oscillation occurs at the frequency at which the phase shift is zero.

这个 电路就是"文氏桥"，如果以文氏桥作为放大器的正反馈路径，那么当相移等于 0 的时候，就会出现振荡。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐