直流放大器

高精度高灵敏度直流放大器的研制

The Development of a High-Precision , High-Sensitivity DC Amplifier

光隔离线性直流放大器的设计

The Design of Light Isolating linear DC Amplifier

0.1μV直流放大器的噪声和漂移的分析

0.1 μ v DC amplifier and the analyses of noise and drift

将此电路用于我们所设计的高增益（Av≥1000）直流放大器中，有效抑制了输出端的直流漂移。

The circuit described in the paper has been used in a high-gain ( Av ≥ 1000 ) dc coupling fast amplifier developed by ourselves . The output dc drift of the amplifier is very low .

以ICP作光源，用光电倍增管将光信号转换为电讯号，采用三级高输入阻抗直流放大器放大信号，对影响分析谱线强度和背景强度的工作参数进行了合理优化。

Photo-signals are transformed into electric signals by a photoelectric multiplier , and then the electric signals are amplified by a three-step high input impedance direct current amplifier . Working parameters that influence intensities of analytical spectral lines and background are optimized .

用数学分析的方法表明：AGC的响应速度、压缩动态范围及抑制干扰脉冲的能力均与AGC调整特性的斜率和直流放大器的增益成正比关系。

This paper , through mathematical analysis method , shows that the response velocity and the abilities of compress dynamic range and restraint interference pulse of automatic gain control are in proportion to the slope of adjustment characteristics and the gain of direct current amplifier .

直耦放大器的偏压整流器GB/T13975-1992直流放大器特性和测试方法

Direct current amplifiers & Characteristics and test methods

建议用两路直流放大器的零补偿线作为参考线。

Using zero compensating line of two direct-current amplifiers as a reference line was suggested .

用于微波检测的直流放大器设计

A DC Amplifier Used in Microwave Measurement

漂移补偿式直流放大器

Drift compensating type DC amplifier

该电路采用高压直流放大器加功率放大器原理，具有良好的动态响应性能。

The power supply with high dynamic response employs a high-voltage DC amplifier and a power amplifier .

测量微电流一般采用电流负反馈直流放大器完成Ⅰ－Ⅴ变换。

The ⅰ - ⅴ conversion in microcurrent measurement is usually performed by current negative feedback DC amplifier .

静态功率直流放大器

Power static DC amplifier

磁调制式直流放大器的特点是开环输入电阻较低，这样有利于提高放大器灵敏度和信噪比。

The amplifier has a characteristic of low resistance with open loop , which helps to improve the sensitivity and signal noise ratio .

实验与分析表明，高压直流放大器采用功率场效应管和电压闭环控制后，可拓展放大器通频带，提高放大器输出能力和长时间稳定性。

The experimental and analytical results demonstrate that wide bandwidth , high voltage output and long-time stability can be achieved with power MOSFETs and a closed-loop scheme .

分析了磁调制式直流放大器的传递函数，对系统的稳定性进行了讨论，给出了系统稳定应满足的条件，并介绍了保证系统稳定的补偿方法。

The stability of system and transmission function of the DC amplifier using a magnetic modulator is mainly discussed in this paper , and the compensation method and conditions of the stableness of the system are given .

如果应用一个法拉第杯型离子收集器和一个灵敏的直流放大器来进行离子流测量的话，那么该电离规测量范围在10-10～10-3Pa之间。

If the direct current measurement of the ion current with a Faraday cup type ion collector and a sensitive DC amplifier is used , the gauge is possible to measure the pressure between 10 10 to 10 3 Pa.

将电压的变化，转变为温度的变化，是因电压与电阻成正比，并通过-增益可调的直流放大器来放大，因此输出电压能精确地反映温度在数值上的变化。

The change of voltage to the temperature , which is propotional to that of the resistance , is amplified by a DC amplifier with adjustable gain , so that the output voltage exactly equals to the temperature change in value .

报道了用传感器、直流放大器、数据采集存贮器、计算机等组成的精密微压差计算机数据采集系统，快速准确地跟踪测定了不同温度时过氧化氢分解反应压力与时间的关系。

This paper reports computer data acquisition system of accurate pressure difference , which is composed of accurate pressure difference sensor , direct current amplifier , A / D adapter and computer etc. The system has quickly measured the pressure and time of hydrogen peroxide decomposition reaction at different temperature .

单片机控制的PWM直流功率放大器的设计

Design of PWM DC Power Amplifier Controlled by Microcomputer

静电悬浮系统中的调幅式直流高压放大器

Amplitude modulation based DC high voltage amplifier for electrostatic levitation systems

关于直流运算放大器回路系统中反相输入组态的几项误差及其对策

Some errors and countermeasures of configuration of reversed input in circuit system of DC calculation amplifier

该文提出一种调幅式直流高压放大器，它由幅值调制、功率放大、变压器升压、线性检波组成主回路，通过电压负反馈构成闭环控制。

A DC high voltage amplifier developed using amplitude modulation includes an amplitude modulator , a power amplifier , a step-up transformer , and a linear detector .

实验与分析表明，直流高压放大器采用高的载波频率和闭环结构后，可以拓宽放大器的通频带，提高输出高压的出力系数、波形质量与长时间稳定性。

The experimental and analytical results demonstrate that wide bandwidth , high voltage-force coefficient , low distortion , and long-time stability can be achieved with a high carrier frequency and a closed-loop scheme .

对直流PWM功率放大器的电磁兼容性进行了分析，提出了抑制PWM功率放大器干扰的几种措施；

The EMC of DC PWM power amplifier is analyzed and several measures to restrain the disturbances of PWM power amplifier are put forward .

对直流PWM功率放大器常用控制模式特性进行了分析，并对双极模式下电机电枢电流进行了定性分析。

The analysis of control mode character of direct current PWM amplifier and the qualitative analysis of electromotor armature current under bipolar mode can be obtained in the thesis .

本文介绍了一种实用的双端输入的直流差动对数放大器。

This paper introduced a direct current differential logarithmicamplifier with two-terminal inputs .

一种双端输入的直流差动对数放大器的研制

Research And Development of A Direct Current Differential Logarithmic Amplifier With Two-terminal Inputs

交直流标准源电压放大器的研制

The design of voltage amplifier for DC / AC standard supply

磁悬浮轴承并联谐振直流环节开关功率放大器

Parallel Resonant DC Link Soft-switching Power Amplifier of Magnetic Bearing