1. 开环转移函数:用来分析稳定度,找出Phase Margin(PM:相位裕度)跟Gain Margin(GM:增益裕度) 2. 闭环转移函数:用来测量控制系统性能,如最大超越量、频宽等时与频域性能指标 3. 系统不稳定的二个必要条件:开环转移函数的相位延迟180度开环转移函数的相位延迟180度时的开环增益为1 4. 参考资料 Control System ...
Chapter 7_6 Phase Margin and Gain Margin
Gain margin and phase margin完整版资料 Gainmarginandphasemargin • Closed-loopgainofamplifierswithfeedbackis Af (s)A(s)1A(s)replacings=j2πfgivestheclosedloopgainasafunctionof frequency Af (f )A(f)1A(f)•Foragivenfrequencyf1,ifβA(f1)=-1,thecloseloopgainbecomes infinite.Thiscorresponds...
marginphasegainchapter开环幅值 ByHuiWang hwang@iipc.zju.edu CHAPTER7 CHAPTER7 FrequencyResponse FrequencyResponse 2008-1-3 2 PhaseMarginandGainMargin ReviewofNyquist’sStabilityCriterion 由Nyquist稳定判据可知:若已知系统的开环函数G(s)H(s),即可 知开环的不稳定极点数(位于S的右半平面)P R ,在画出...
DSP英文翻译 - 豆丁网 ... G Gain 增益Gain and phase margin增益和相位裕度General complex exponentials 一般复指数信号 ... www.docin.com|基于9个网页 2. 幅相裕度 幅值和相位裕度,gain... ... ) Gain margin 幅值裕度 )gain and phase margin幅相裕度) gain and phase-margin 幅值和相位裕度 ......
Do Phase margin and Gain margin depend on the input voltage and output current?(Or, Are Phase margin and Gain margin relation to the input voltage and output current?)-We guess that Phase margin only depend on L, C and ESR.Because our customer would like...
Chapter 7_6 Phase Margin and Gain Margin 热度: 《增益与相位裕量》课件 热度: March1976 ESL-P-654 GAINANDPHASEMARGIN FOR MULTILOOPLQGREGULATORS by ** MichaelG.Safonov and ** MichaelAthans Abstract--Multilooplinear-quadraticstate-feedback(LQSF)regulators ...
The difference between unity and the value of |βA| at the frequency of -180° shift, called the gain margin, is usually expressed in dB. The difference between the phase angle at the frequency where |βA| =0dB and -180° is termed the phase margin. ...
The Bode plot looks good, it has good phase and gain margin are good. 100Hz start is fine. The only concern i have the loop bandwidth. Please use equation to design COUT for the better bandwidth. you can also use webench to help you design the right...
【自动控制原理】14_奈奎斯特稳定性判据_裕度分析_幅值裕度与相位裕度_Gain Margin/Phase Margin 3.6万播放 单相逆变器系列视频简介 1.7万播放 三相整流器1-开篇 1.2万播放 一起学开关电源环路设计 3.5万播放 LLC数字控制、代码-讲解一 9869播放 CLLC变换器,直流开关电源,软开关,LLC变换器,DCDC变换器 定做matlab仿...