Filter circuits having transformers as filter elements
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United States of America Patent
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-
Oct 11, 1983
Grant Date -
N/A
app pub date -
Nov 2, 1981
filing date -
Nov 2, 1981
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Filter circuits of the type having inductance and capacitance elements, wherein the number of magnetic components is reduced by using two transformers to perform the functions of four individual inductors. Each transformer has one end of the primary winding connected to one end of the secondary winding, and a pi or T equivalent circuit in which one of the inductance values is equal in magnitude and opposite in sign to a corresponding equivalent circuit inductance value of the other transformer.
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