当uc(0+)=U0(0+)=0时 () O i(t=cauc(t) 0 St dt L(s2-s1) 2()-1、Uo(S1e-S2e”) di dt t>0( ) - 1 2 2 1 1 0 2 1 2 0 s t s t C e s s s U e s s s U u t － － ＝ 当uC (0+)=U0 ,iL (0+)= 0时 ( - ) d ( ) d ( ) ( ) 1 2 2 1 C 0 s t s t e e L s s U t u t i t C － = ＝ ( -s ) d d ( ) 1 2 1 2 2 1 0 s t s t L s e e s s U t i u t L － ＝ = t > 0