US 2014/0211356 A1Published application

Transmission Circuit for Ethernet and Protection Component Set Thereof

AssigneeNlightning Technology Ltd.

InventorsKun Tsen Lin, Shih Peng Wu

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Abstract

A transmission circuit including four transmission component sets for Ethernet is provided. Each transmission component set is coupled between an Ethernet connector and an Ethernet chip and has a protection component set. For each transmission component set, a first capacitor is coupled between first and second transmission lines (TLs), and coupled to the Ethernet connector via the first TL and to the Ethernet chip via the second TL; a second capacitor is coupled between third and fourth TLs, and coupled to the Ethernet connector via the third TL and to the Ethernet chip via the fourth TL; first and second inductors are cascaded and coupled between the first and third TLs; a third inductor is coupled between the second and fourth TLs; and a contact between the first and second inductors is coupled to a ground via a fifth TL.

Claims10

Dependent claims

A transmission circuit for Ethernet, comprising:

four transmission component sets, each of the transmission component sets being coupled between an Ethernet connector and an Ethernet chip;
wherein:
each of the transmission component sets comprises a first capacitor, a second capacitor, a first inductor, a second inductor, a third inductor, a first transmission line, a second transmission line, a third transmission line, a fourth transmission line and a fifth transmission line, and for each of the transmission component sets:
the first capacitor is coupled between the first transmission line and the second transmission line, and coupled to the Ethernet connector via the first transmission line and to the Ethernet chip via the second transmission line;
the second capacitor is coupled between the third transmission line and the fourth transmission line, and coupled to the Ethernet connector via the third transmission line and to the Ethernet chip via the fourth transmission line;
the first inductor and the second inductor are cascaded and coupled between the first transmission line and the third transmission line;
the third inductor is coupled between the second transmission line and the fourth transmission line;
and
a contact between the first inductor and the second inductor is coupled to a ground via the fifth transmission line.

6 more elements

Dependencies are inferred from the claim text.