《自动控制原理》黄坚课后习题答案解析[共18页]

完美WORD格式2-1试建立图所示电路的动态微分方程C＋-+-uiuoR1R2i1ii2C＋-+-uiuoR1R2i1ii2C＋-+-uiuoR1R2i1ii2Lu1C＋-+-uiuoR1R2i1ii2LC＋-+-uiuoR1R2i1ii2Lu1解：u1=ui-uoi2=Cdu1dti2=Cdu1dti1=i-i2uoi=R2uoi=R2u1i1=R1u1i1=R1=ui-uoR1=ui-uoR1dt=Cd(ui-uo)dtd(ui-uo)=C(a)Cd(ui-uo)dtuo-ui-uo=R2R1Cd(ui-uo)dtuo-ui-uo=R2R1i=i1+i2i2=Cdu1dti2=Cdu1dtuoi1=R2uoi1=R2u1-uo=LR2duodtu1-uo=LR2duodtR1i=(ui-u1)R1i=(ui-u1)(b)解：...