电工电子技术 第2章 电路的暂态分析

1、22300RRRiuuu212LLWLi212CCWCucuCCduidt (0 )(0 )CCuu(0 )(0 )LL(0 ),(0 )CLui(0 )0,(0 )0CLui(0 )(0 )0CCuu(0 )(0 )0LL(0 )0Cu(0 )0L 1(0 )(0 )CUR (0 )0)C 2(0 )0u1(0 )(0 )LuuU(0 )0)LuiL(0+ )11313134(0 )1A4 444244LRUUiR RRRRRR3(0 )(0 )4 14 VCLuR i (0 )1ALi(0 )(0 )4 VCCuu(0 )(0 )1ALLii2(0 )(0 )(0 )CCURiR iu(0

2、 )(0 )(0 )CLiii82 (0 )4(0 )4Cii(0 )(0 ) 1Cii1(0 )A3CiCLui、CLiu、1(0 )A3Ci23(0 )(0 )(0 )(0 )LCCLuR iuR i11444 11V33 / ALi/ ACiV/Cu/ VLu0t0t41101304113CLui、CLiu、000tuUt0 tddCCuRCuUtRCuuU( )CCCu tuu0t CuddCCuRCuUttRCCCCuuuUAe,CdKuKURCKdt( )()CCutuU CueCCCtuuuUA d0dCCuRCutRC （令令）CueeCtptRCuAA (0 )0CuAU )

3、()(0)(1 e1 eCttRCtuUU etRCCuUUCuCuCuCuCuCiCiCuCuCi1( )(1)63.2%CuUeU (1 e)CtRCuUde 0dCCtuUiCttR URU0.632U1 2 3 123Cu0.998Ut0Cu00.632U 0.865U 0.950U 0.982U 0.993U2 6 4 5 3 tCuO()(0 )() eCCCCCCtuuuuuu etUA ( )f t( )f (0 )f( )( ) (0 )( )etf tfff (0 )f( )f (0 )f ( )f t( )f (0 )f(a)(0 )0f(b)(0 )0f(c)( )0f

4、 ( )f t( )f t( )f (d)( )0f ( )f t(0 )f( )f ( )f (0 )f0.632 ( )(0 )(0 )fff 10( )5555 VCu 6( )666Li 3mA( )f Li(0 )(0 )CLui、(0 )(0 )(0 )(0 )CCLLuuii(0 )i(0 )u0;U (0 )0 Cu若若，0(0 )0 CuU，0(0 ) 0 LiI(0 )0Li若若(0 )f0R C 0LR 0123(/ /)RRRR0R C ( )(0 )( )CCCCtuuuue cuCi2i(0 )Cu33(0 )9 106 1054 VCu (0 )(0 )54 VC

5、Cuu(0 )CuCi2iCu6(0 )33 V123Cu (0 )Cu(0 )(0 )3VCCuuC 5FCu2 1 (0 )Cu)0( iVe35107 . 1t t66103e0 tCCCCUuuutu e)()0()()(s6600161053232 CR CuC F5Cu2 1 CF5 Cu21 tuCtiCCdd)( A3)(510712t.eutiC Ciiti 21)(tt5107 . 15107 . 1e5 . 2e A5107 . 1e5 . 1t CCiuAe5 . 25107 . 1t C F5Cu2 1 )( cu)( cu(33 Cus36

6、30104102103636 CR )( Cu)0( CuV54)0( CuV18)( Cus3104 Ve3618e )1854(182503104ttCu ttuCiCC250e )250(36102dd6 Ae018. 0t250 Cu tCCCCiiii e)()0()(0)( CimAe126250 t 32103)()( tutiCmAe18)(250ttiC mA181025418)0(3 Ci)0( CiCiCi2iCu)0( CiA23212)0( LiA2)0()0( LLii。和电压和电压LLuiLiLuLiLuV4)12222()0()0( LLiuA2)0()0( L

7、Lii)()( LLui和和LuLiV0)( LiV0)( Lu s5 . 0210 RL 3210/RRRR LuVe4)04(022ettLu Ae2e)02(022ttLi LuLi ,S1+-SRU21+ CiCu0t Ru+CuC (0 -) = U(0 )Cu(0 )(0 )CCuuU ( )Cu ()cu()0Cu RC eCtRCuUeRCtRCui RU dedCCtRCuUiCtR CuCiRuO0t (0 )Li (0 )(0 )0LLii( )Li ()Li ()/LiU R /L R /(1e)LtL RUiR /(1e)RLtL RURiU /eLRtL RUUUU LuLiRu0 e(1e)(0)CttRCRCuUUt uC (0 -) = U0sRU+_C+_i0t uC0 e(1e)(0)CttRCRCuUUt 0 ()e (0)tRCUUUt 1u_(0 )0 VCu1u2uiC