§13-7 Gyrator(回转器) →)a Gyrator"" the current of one port into the voltage of the other port and vice verse. gyration constant Example: du d U1=-a(-C=)=aC dt at L=a2C(C→D§13-7 Gyrator(回转器) Gyrator "gyrates" the current of one port into the voltage of the other port and vice verse. 1 = −ai2 2 = ai1 a ……gyration constant dt d i C 2 2  = − dt d aC dt d a C 2 2 1 ( )    = − − = 2 = ai1 Example: dt di L dt di a 2 C 1 1 1 = = ( ) 2 L = a C C  L − +  2 2 i 1 i − + 1 →a − +  2 2 i 1 i − + 1