第08章 正弦稳态电路的分析

1、.UIUZIUI()UZIuiUUZII）jzZRXZuicos()ZRZsin()ZXZZR|ZXRRRUZRI.RIRUiRURIuRIRU.LILUiLULIujjLLLLUZLXILXL.CICUiCUCIu1jjCCCCUZXCI 1CXC UZ Ieq1nkkZZeqkkZUUZ.UIIYU(S)IYUiuIIYUU）jYYGBYiuZ cos(s)YGYsin(s)YBYY|YGBIYUeq1nkkYYeqkkYIIY222221122eq222m21m222111(j)jjj11jj(j)C UUUCCCRRUZIg UC UUC gCRR2UR221j C11j C2mg U

2、.ZeqUIs( )40 2cos3000 Vu tt.us(t)i (t).1.5k1k1F61H3i (t)us(t)i (t).1.5k1k1F61H3i (t)611jj3000j1k ,jj2k133000106LCZLZ .I.1.5k1kj1kLICIsU-j2keq(12j) j12j1(2j1)(1j1)1.51.51.5(1j2)j11j122j1.5k2.5 36.9 kZ seq40 01636.9 mA2.5 36.9UIZj1j11 901636.9(1j2)j11j12458 2 98.1 mACIII1j225.355.3 mA(1j2)j1LCIIII ( )

3、16 2cos(300036.9 ) mAi tt( )16cos(300098.1 ) mACitt( )25.3 2cos(300055.3 ) mALi ttU53.1IU.IRILIeq100 53.120 53.112j165 0UZIeqeq12 ,16RX2222221210032516LLLLLR XRXRRXXRX5 0 AI 100 53.1 VU 553.1 A3j4AI 100 010033RURI100 0j25j4LLUZI100 0 VU RILI25LX2, CIUU.CIRILIRUCU22jA,2jj100100RLCRLLURRIIIIX 2222( 2)

4、()100100RR100 2 0 V,j 2A,245 ALCRLRUIIII 2 0 ARI2 0 VRUReqjjjLCLCRXUZXRXIeqIm050050CCZXX jj50 245100 250 2j50 210045 VCRCUX IU j50j50CCUXIUCI100VURILICICUgCUgUgRLUUgg222A,100 2VLCRRLLLIIIUUX I145LRItgIcos100VRUU.( )( ) ( )p tu ti t( )2cos, ( )2 cos()u tUt i tItZui( )2cos2 cos()p tUtItcoscos(2)UItcos

5、cos(2)UIUIt( )coscos2cossin2sinp tUIUItUItcos (1cos2)sin2sinUItUIt ti,u,p cosUI001( )dcosTPp ttUITcosui,0,0RLCPUI PP090900-0P sinQUIsinui0900,RLCQQUIQUI 900-coscossinPUISQS22,QSPQtgPSUI222SPQPQS9090 , cos0coscosPS374F1cos0.6cosU.ICI1I374F6j250 374 10380 0j44.6ACIj CU112000087.72Acos380 0.6PIU380 0 V

6、U 187.7253.1 AI 158.525.8 ACIII58.5A, coscos25.80.9IU.ICI1I374FU1I11sinI11cosICIIsinI11ccososIICI1II1I1I11111sinsinsinsin()coscosCPPPIIItgtgCUUUUcos1cos1cos12()PCtgtgU.UI,uiUUII iII ()uiuiZSU IUIUIS cosjsinj(VA)ZZSSPQ22()kkkLkCkkQQX IXXI( )( )kp tp t2kkkPPR IkSS(j)jkkkkkSSpQpQ, , U.I1I2I222211,CLUPU

7、XRXRIII U2IgI1Ig60301Acoscos( 30 )PPIUU121AIII2100CUXI 2186.6PRI221()50LUXRI3s( )10 2cos10 Vu tt34mH500F.1a2b,IIII3j4.-j2sU1Ig12Ig2IgaIgbIgababsab1ab(3j4)(j4)10 0(3j4)j410j4(j4j2)2(2j4)j20IIUIIIIIII a10j40j2j2020 901.24 29.74 A3j4j48j14 1616.12 60.262j4j2I b3j4102j4020j4044.72 116.572.77 56.31 A8j14

8、8j1416.12 60.26I1a1.24 29.74 AII31( )1.24 2cos(1029.74 )Ai tt2b2.77 56.31 AII32( )2.77 2cos(1056.31 )Ai tt.-j105.j5.-j0.5A.1 0 Ao-j5j10101nUg2nUg.12111111()()1 05j10j10j5j10j5nnUU 12111111()()( j0.5)j10j510j5j5j10nnUU 1212(0.2j0.2)j0.11j0.1(0.1j0.1)j0.5nnnnUUUU0I.820 0 Voj6j16j16-j4-j40IgocU.820 0 V

9、oj16j16-j4-j4ocU.Igocj16( j4)j1022IIUI 20 020 0236.9 A18j68(j16j4)2I ocj10 239.620 53.1 VU .Z1.Z2Z3Z4Z51423,(1,2,3,4)kkkZ ZZ ZZZk14142323()()ZZZZ14231423ZZZZ1133,ZR ZR421144,ZR ZR23230 scI.820 0 Voj16j16-j4-j4scIgIg1Ig2Igsc12j16j45j16j4j16j43IIIIII 20 0240 901.5 53.1 Aj16 ( j4)160 36.982j16j4I sc2.5

10、 53.1 AIoceqsc20 53.182.5 53.1UZI 0I&820 53.1 Voj60Igoc0eq20 53.12 16.2 AZj610 36.9UI ocUgjLLLLLZRXZLLoceqeqeqeq,j,jLLLLUIZRXZRXZZ22oc22eqeq(,)()()LLLLLLLUPR IRf RXRRXX0,0LLLLPPRXeqeqeqeqeqjLLLRRZRXZXX 2ocLmaxeq4UPRcosjsinLLLLLLLZZZZeqeqeqeqeqeqeqcosjsinZZZZ2cos(|)LLLLPZIfZLoceqeqeqeq(coscos)j(sinsi

11、n)LLLLUIZZZZ2oc22eqeqeqeqcos(coscos)(sinsin)LLLLLLLZUPZZZZeq0LLLdPZZd Z时时oc10 0 VU2OCmaxeq110025W44 33UPR时时2max2221max105 100255W80484PP 1jCRUgRLUgCUgIg.Ug1(j )j()UZRLCI221(j )()ZRLCo(j)ZR1jCRUgRLUgCUgIg.Ugoooo1110,2LfCLCLCoo1LLCCoo11LLQRRCRRC1jCRUgRLUgCUgIg.Ugoomaxm,1j()UUUIIIIIRRRLComaxPPooRURIUoooojjjLLULIUQURoooo1jjjCUUIQUCCR ooLCUUQUo0XUoLUgoCUgoRUgoIUg1jCRUgRLUgCUgIg.Ug.oXUoo(j),|(j)|ZRZRoo(j),|(j)|YG YGo