模拟控制电路

本文采用后反馈闭环控制，制成了可变光衰减器模拟控制电路。

High speed VOA module had been fabricated by using back closed-loop control analog circuits .

传统的感应加热装置多采用模拟控制电路，模拟电路不可避免的存在调试困难、元件易老化等缺点。

In traditional method which uses analogy control circuit , some disadvantages such as difficult debugging and aging component are unavoidable .

硬件电路设计主要是模拟控制电路的设计，包括电源和差分比例调节电路。

The major respect of hardware design is the design of analog control circuit including the power and the differential proportional regulator .

通过汽车头灯电子镇流器的样机制作，论证了整个汽车头灯用模拟控制电路来实现的合理性。

Based on the experimental data from the laboratory prototype , The whole automotive high intensity discharge lamp ballast using simulate control can be proved rationally .

本文在这部分的研究工作中，首先建立了弧焊逆变电源的交流小信号模型，并对典型的模拟控制电路进行了分析。

At first we established an AC small-signal model of welding inverter and designed a digital controller on the basis of analyzing a typic analog welding control circuit .

设计思路是通过模拟控制电路来控制变频器的输出频率，并由变频器控制温湿空调电动机，以实现纺织厂的恒温恒湿环境。

The design mentality is to control the output frequency of inverter by way of analog control circuit , so that the motor of artificial atmosphere is controlled .

目前感应加热装置多采用模拟控制电路，模拟电路不可避免的存在调试困难、元件易老化等缺点，感应加热电源的数字控制技术发展尚不成熟。

In traditional method which uses analog control circuit , some disadvantages such as difficult debugging and aging component , are unavoidable . Digital control method is not mature now .

该模拟控制电路与数字电路方案相比，具有控制速度快、结构简单等特点。

Compared with the digital circuit method , the proposed analog control circuit has the advantages of fast control speed , high control precision , simple structured and easy to adjust .

本文详细介绍了汽车头灯的启动过程和电子镇流器的现有拓扑，并设计了一种低成本，简单可行的模拟控制电路。

Besides , chapter two introduces the complex starting up process of automotive headlamps and the common topology of electronic ballasts . A simple and low cost control design is also presented .

原有的电气系统采用的是由大量运放组成的模拟控制电路，运放的零漂和电阻偏差较大等原因造成控制系统精度难以满足线路要求。

The existing electrical control system is composed by analog circuits , with lots of amplifiers . Because of zero drift of amplifiers and big deviation of resistance , the precision of control system is difficult to satisfy the request .

本文研究以FPGA为数字平台设计优质的模拟与控制电路，在单片机控制下智能实现三通道通用计数器、三通道DDS任意信号发生器、43/4数字万用表的功能。

This paper discusses how to design excellent analog and control circuitry based on FPGA , and implement the functions of 3-Channel general-purpose counters , 3-Channel DDS signal generators and 43 / 4 digital multimeters under the control of a single-chip microcomputer .

完整的体外系统包括单片机控制处理电路、键盘控制和LCD显示、信号发射电路、信号接收电路、串行通信电路、模拟开关控制电路以及电源管理电路等。

The complete outside system includes the MCU controlling and handling circuit , keyboard control , LCD display , the sending circuit , the receiving circuit , fee serial communication interface , the analog switch controlling circuit and the power supply management circuit etc.

在手动控制系统方面，论文中主要叙述了手动控制电路的设计，包括电磁阀控制电路的设计、期望压力曲线电路的设计以及模拟输出控制电路的设计等，并叙述了对GAL芯片的软件编程。

Referring to the manual control system , there are a lot of information on its circuit design in detail , including the design of electromagnetic valve control circuit , analog output circuit , expecting pressure curve circuit and so on . it also elaborates the programming on GAL chip .

采用时域分析方法对系统的任务剖面进行划分，通过计算机编程模拟状态控制电路内元件失效对系统安全和可靠性的影响，建立电路的安全和可靠性模型。

The safety and reliability models of the circuit were set up by using a computer to simulate the effect of the faulty components on the safety and reliability of the circuit .

在硬件设计上，本文采用了模拟PWM控制集成电路来实现移相全桥软开关DC／DC变换器的控制，实现功率传递和稳压。

In the hardware design , the analog PWM control integrate circuit is used to achieve the control of the resonant phase shifted full bridge DC / DC converter , to transfer the power and regulator the output voltage .

摘要AMC7820是德州仪器公司（TI）推出的专为多通道应用而设计的模拟监视与控制电路，它可灵活地应用于模拟采集与控制仪器设备中。

AMC7820 was a product of TI company , which was designed for multi-channel inspecting through its D / A and A / D function , and was applied expediently in many aspects .

新型稳定可靠的模拟显示屏及其控制电路

A Novel Analog Display Board and its Control Circuit

文章首先阐述了逆变系统的工作原理，分析了逆变系统中最常用的正弦脉宽调制方法及其产生办法，以及模拟、数字控制电路控制方法的优缺点。该工艺技术有着广阔的应用前景。

The paper first presents the run application theory , and analyses the SPWM theory including the creating methods .

针对小功率系统对转换效率要求高、期望成本低的特点，采用全模拟电路搭建控制电路，以提高芯片面积利用率。

For low-power systems that require high conversion efficiency and low expected cost , a fully analog circuit design has been adopted to build the control unit in order to promote the chip utilization level .

模拟部分包含控制开关电路、驱动电路、前级运算放大器、采样保持电路、相位调节电路、单位增益缓冲器、基准电流源、电容补偿阵列、开关电压转换电路。

The analog part includes the switch controlling circuits , driving circuits , operation amplifier , sample / hold circuits , phase modulating circuits , unity gain buffer , current reference source , compensation capacity array , voltage conversion circuit .

现阶段开关电源普遍采用传统的模拟控制方式，无法摆脱模拟控制电路中存在的非线性、误差、漂移、老化等问题。

Currently , the switching power supply generally uses the traditional analog control method , which cannot get rid of the problems of nonlinearity , error , drifting and ageing existing in the analog control circuit .