相位裕度

综合式自校正PID调节器兼有相位裕度和极点配置两种设计方法的优点。

The hybrid design of self-tuning PID regulator combines the advantage of phase margin design with the advantage of pole placement design .

还结合控制理论设计补偿网络，保证系统足够的相位裕度，提高系统的稳定性。本文设计了一款升压型大功率LED恒流驱动芯片。

Finally , the frequency compensation circuit was introduced to guarantee the enough phase margin and improve the stability of the system . A chip which is used in the Boost application to drive High-power LED with a constant current is proposed and designed in this paper .

一种新的基于相位裕度PID参数最优整定方法

New Optimization Tuning Method of PID Parameters Based on Phase Margin

基于幅值裕度和相位裕度的自整定PID控制器

Gain and Phase Margin Tunning for PID Controllers

给定相位裕度的PID自校正调节器

A Selftuning Controller with Given Phase Tolerance

基于相位裕度和过渡过程时间的PID参数自整定方法

A self tuning technique of PID-controller based on the specifications of phase margin and transient time

最后，本文提出了基于相位裕度的PID最优化参数整定方法。

The PID parameters were tuned by a new optimization tuning method base on phase margin .

综述并分析了基于幅值裕度和相位裕度的PID控制器参数整定方法。

The main tuning methods of PID control parameters based on gain margins and phase margins are summarized and analyzed .

利用继电辨识得到过程的临界振荡点，选择不同的相位裕度和幅值裕度得到不同的PID参数组，并提供相应的预期阶跃响应曲线帮助参数选择。

By identifying the limit cycle oscillation frequency point and specific amplitude and phase margin , different PID parameters are provided with anticipative step response curve to help parameter selection .

该控制器采用次最优模型降阶算法，辨识出二阶加纯滞后的模型；然后基于给定的相位裕度和幅值裕度，整定出PID参数。

The controller adopts sub-optimal model order reducing algorithm to identify second-order plus pure time delay model , then according to giving phase and amplitude magins PID parameters are adjusted .

说明了PID控制器是过程工业控制中应用最广泛的控制策略，且幅值裕度和相位裕度作为频域分析时常用的性能指标，可用于衡量系统的稳定性及相对稳定性。

PID control algorithm is widely used in industry process control . As the performance index of control system in frequency analysis , gain margins and phase margins can he used to represent the stability and relative stability of the control system .

并根据基于增益和相位裕度的线性PI控制器参数的整定规则，给出了模糊控制器参数的整定公式，解决了模糊控制器的参数整定问题，使这种模糊控制器更加实用化。

Based on tuning rules of gain margin and phase margin of linear PI controller , the tuning formulas of the fuzzy controller were proposed and the parameters tuning problem of the fuzzy controller was solved and it was made more practical .

本文提出了一种新的PID参数设计方法，它以误差积分型性能指标为目标函数、以设计参数的取值范围及最小增益相位裕度为约束条件建立了优化数学模型。

This paper puts forward a new method of designing the parameters of PID controller . Adopting error integral criterion as the objective function along with the constraints described by the minimal gain and phase margin and the parameter ranges , we get the mathematical model for optimization .

单位增益缓冲器是具有驱动大负载电容能力的运算放大器的反馈应用，该运算放大器的增益大于70db，相位裕度大于70度。

Output buffer is realized by the feedback application of amplifier which can drive big load capacitor .

利用过程的标准化死区时间修正基于给定增益裕度和相位裕度整定的PID（比例积分微分控制器）的积分时间常数，并通过曲线拟合最小二乘法求得积分时间常数的修正公式。

The integral action time is revised by the normalized dead-time of the process for the PID controller which is tuned to meet user-specified gain margin and phase margin . Furthermore , the revised formula of the integral action time is obtained from the curve fitting in the least-squares sense .

在s域讨论2阶／3阶CP-PLL的线性建立特性，验证了文献[13]中的相位裕度优化结果。

Its linear settling feature is discussed in s-domain , and the phase margin optimization result in reference [ 13 ] is verified .

在5V电源电压下，该放大器的仿真结果为直流增益大于90dB，单位增益带宽大于100MHz，相位裕度大于75°。

Simulation results show that , at 5 V power supply , the OTA has a DC gain greater than 90 dB , a unit gain bandwidth over 100 MHz and a phase margin larger than 75 ° .

仿真结果表明，该电路的开环直流增益为70dB，相位裕度达到86.6°，单位增益带宽为100MHz。

According to the simulation , the dc gain of open loop is 70 ? dB and unity gain-bandwidth product of 100 ? MHz with 86.6 ° of phase margin can be achieved .

用EDA软件Cadence进行模拟，得到了满意的仿真结果：直流开环增益为82.9dB，f-3dB为28kHz，相位裕度为46.9，低频下输出噪声频谱密度为1.5mV/Hz2。

Simulated by EDA software Cadence , the results obtained are satisfied . The DC open-loop gain is 82.9 dB with a 28 kHz 3 dB bandwidth and its phase margin is 46.9 . The maximum output noise spectral density is 1.5 mV / Hz2 at very low frequency .

该套筒式运算放大器的输入共模反馈结构使输出共模电平维持在2.5V左右，增益可达到110dB以上，相位裕度为50°，单位增益带宽为60.83MHz。

The smart input common-mode feedback structure of the telescopic stage stabilizes the output common-mode voltage at almost 2.5 V.At last , the gain of amplifier is over 110 dB and phase margin is 50 °, and the gain bandwidth is 60.83 MHz .

直流增益大于80dB，单位增益带宽积为100K，相位裕度为90°。浮栅电流源的引入使得本文设计的电路结构更紧凑，面积小于600100平方微米。

DC gain is 80 dB , unity gain bandwidth is 100 KHz , and the phase margin is 90 ° . Floating gate current source is introduced to make the circuit more compact . The area of this design is less than 600 100 square microns .

一种引进相位裕度的∑Δ调制器行为级模型

Behavioral Model of Sigma Delta Modulator by Introducing Phase Margin

在频域分析中，增益裕度与相位裕度是衡量系统鲁棒稳定性的重要指标。

In the frequence domain , the gain and phase margins measure the robustness of closed-loop systems .

在建立的鲁棒回差方程的基础上，给出了闭环系统鲁棒二次保稳定的一个充分条件，以及增益和相位裕度描述形式。

Based upon the modified robust difference equation , a sufficient condition of robust quadratic guaranteed stability for parameter uncertain systems is presented .

介绍了基于增益裕度和相位裕度的整定方法，同时对其稳定性进行了讨论。

A new tuning method which based on gain margin and phase margin is showed . And the stability of the controller is discussed .

依照锁相环的原理和构成求解了其闭环传函，得到了环路带宽、相位裕度表达式。

In accordance with the principle of the PLL , the closed-loop transfer function , the loop bandwidth , and the phase margin was derivated .

在设计中不仅要考虑速度、面积、功耗等一些共性因素，还要考虑数据判决电路设计的指标：工作速率范围、判决灵敏度、相位裕度、输出相位偏移等。

The speed 、 size 、 power was common factor considered in the design , in addition , the specification of data-decision circuit design , such as : operation speed range , sensitivity of decision , phase margin and output phase offset , was taken into account .

本文针对TCP网络系统的时滞特性，设计基于内模补偿控制器，提出了基于幅值与相位稳定裕度的控制参数整定方法。

The internal mode compensation controller is designed for the delay performance of TCP network system . The controller tuning method is presented based on the gain and phase margin .

基于继电辨识及相位、幅值裕度的理论，提出一种基于幅频裕度配置PID参数自整定方法，并按照相应理论完整设计了软件。

A PID parameter self-tuning method is introduced based on relay identification , amplitude and phase margin theory .

提出了一种引入继电反馈的自整定PID控制器，在线测出过程对象两点的频率特性，辨识出二阶纯滞后的模型，基于相位、幅值裕度整定出PID参数。

A self-tuning PID controller with relay feedback is introduced . In this controller the frequency characteristics at two points of the process object are measured and the model of the second order dead time is recognized . Based on the phase and amplitude abundance the PID parameters are tuned .