Ifalloftheinitialconditionshavezerovalue,thenthecircuitissaidtobeinthezero-state,andthesolutiontononzeroinputsforthecircuitisknownasthezero-stateresponse.(零状态响应)-ircuitt=0-:uC(0-)=0TheZero-StateResponseuC(0+)=uC(0)=0=US+AA=USThegeneralsolution:-stateresponse.(强制响应或稳态响应)Wheredoestheenergygo?Timeconstant=RC(Turnoffallindependentsources)t0+2345…∞uC/…1Whetherthetimeconstantissmallorlarge,:R1=1Ω,R2=2Ω,C=3F,iS==0,theswitchisopened,>:0<t<6s:1=R2C=6st>6s:2=RC=-StateResponseOfAnRLCircuitTheparticularsolution:Timeconstant:Example:L1=1mH,L2=2mH,R=3kΩ,US==0,-stateresponseuL1anduL2fort>=L1+L2=3mHSolution:
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