负反馈控制系统

论文基于锁相环理论，在嵌入式系统的框架下，设计了一种通过CPLD、CPU、恒温晶振OCXO和D/A转换器组成的负反馈控制系统。

In the framework of embedded system , this thesis designs a negative feedback control system composed by CPLD , CPU , constant temperature OCXO and D / A converter based on the theory of PLL .

为了对电能进行高准确度的测量，需要有高稳定的电源装置，稳定交流电源可采用负反馈控制系统，但易产生自激。

In order to measure the electrical energy more accurately , we need a power source device of high stability . A negative feedback control system may be used to stabilize the alternating power supply , but it easily leads to self-excitation .

前者是由压力与生烃组成的负反馈控制系统，在其作用下孔隙流体压力不断增加；

The former is such a subsystem that encompasses mainly the processor of hydrocarbon generation and thus influences the pressure increase .

建立了新型电机的加速度控制系统，并使用根轨迹法来分析这种新型电机加速度的微分负反馈控制系统；

The acceleration control system is set up and Root Locus Design is applied to analyze and design the acceleration differential feedback control system .

动态高型方法是在负反馈控制系统中增加若干积分环节以提高跟踪精度。

The Dynamic High Type ( DHT ) control is to add some integral sections in the feed back control system for improving the precision .

考虑控制增益的影响，以模态阻尼比为优化准则，用罚函数法对非线性约束优化问题的结束条件进行处理，对直接速度负反馈控制系统中的结构参数进行优化。

And the modal damping ratio is taken as criterion of optimization ; and the constraint condition of nonlinear constrained optimization is processed by using method of penalty function ; and the structural parameters in the negative-feedback control system of direct velocity is optimized ;

采用负反馈闭环控制系统，单片机实时将预置值和实测值进行比较、调整控制，提高了电流源的输出精度。

This design applied degenerative feedback closed loop control system . The MCU compared real-time the preset value with the measuring results , and adjusted the settings , in order to advanced the output precision of the current generator .

用负反馈控制混沌Lorenz系统到达任意目标

Control of chaotic Lorenz system to approach any desired targets with feedback functions

扭摆加速度计负反馈电容驱动控制系统设计内装式压电加速度计

The design of a capacitance driving type negative feedback control system for a torsion pendulum accelerometer

它通常是具有负反馈的闭环控制系统，有的场合也可以用开环控制来实现其功能。

It possess feedback negative close loop control system under normal conditions , but sometime it 's efficacy can be also achieved by open loop control .

对于存在电压突变的信号，通过引入微分负反馈来增强控制系统的快速性和稳定性，并抑制输出电压的超调量；

For the signal containing abrupt change of voltage , by means of bringing in differential negative feedback the respond speed of the presented signal generator can be improved , its stability can be enhanced and the overshoot phenomenon of output voltage can be eliminated .

文中设计了负反馈的合作创新控制系统模型，分析了渐进式和突变式创新关系和作用。

We design a control system model of co-operative innovation base on negative feedback , analysis the effect of gradual innovation and emergent innovation .

根据系统的设计要求，选择了转速负反馈控制，提高了系统的精度和稳定度；

A rotate speed negative feedback control is adopted according to the design request of the system , which improves the system 's accuracy and stabilization .

提出了一种无刷直流电动机（BLDCM）速度负反馈和电流截止负反馈控制相结合的控制方法。介绍了工作原理，给出了PWM电流截止负反馈控制可逆调速系统应用实例电路和试验结果。

This paper introduces the principle of Brushless DC Motor ( BLDCM ) speed feedback control based on current cut-off negative feedback , and gives the theorem circuits and test results of an application example about PWM bi-directional speed control system .