当线圈1输入时,U1=E1=4.44fΦN1 U2=E2=4.44f(Φ/2)N2 U1/U2=2N1/N2 U2=U1*N2/2N1=220*1/2/2=55V当线圈2输入时,U2=E2=4.44fΦN2 U1=E1=4.44f(Φ/2)N1 U2/U1=2N2/N1U1=U2*N1/2N2=110*2/2/1=110V