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*1'
N
)8//:$9(
5(&7
9((
92/7
5(*
%$1'
*$392/7
9&&
92/7
5(*
N
92/7$*(
&855(17&219(57(5
)8//:$9(
5(&7
087(
9&&
*1'
9&&
Fig 4. Equivalent circuit
48$'
'(7
DDD