US 10,541,532 B2Granted

Transmission circuit for ethernet device

AssigneeNlightning Technology Ltd.

InventorsKun Tsen Lin, Shih Peng Wu

Life of this patent

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Abstract

A transmission circuit including four transmission component sets for an Ethernet device is provided. Each transmission component set are coupled between an Ethernet connector and an Ethernet chip. Each transmission component set includes a transformer, two capacitors, and four transmission lines (TLs). The transformer includes four terminals and two center taps. Two diagonal terminals of the four terminals are coupled to a ground. The other two diagonal terminals of the four terminals are coupled to the Ethernet connector and, through one of the two capacitors, to the Ethernet chip via two of the four TLs, respectively. The two center taps are coupled to the Ethernet connector and, through the other one of the two capacitors, to the Ethernet chip via the other two of the four TLs, respectively.

Claims14

Dependent claims

A transmission circuit for an Ethernet device, 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 transformer, two capacitors, and four transmission lines;
the transformer of each of the transmission component sets comprises four terminals and two center taps;
two diagonal terminals of the four terminals are coupled to a ground;
the other two diagonal terminals of the four terminals are coupled to the Ethernet connector and, through one of the two capacitors, to the Ethernet chip via two of the four transmission lines, respectively;
and
the two center taps are coupled to the Ethernet connector and, through the other one of the two capacitors, the Ethernet chip via the other two of the four transmission lines, respectively.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/622,218Filed 14 Jun 2017
Priority: TW 105209444 U23 Jun 2016
Published: US 2017/0373489 A128 Dec 2017
Granted: 21 Jan 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

H02H 9/005
Emergency protective circuit arrangements for limiting excess current or voltage without disconnection: avoiding undesired transient conditions
H04L 12/4625
LAN interconnection over a bridge based backbone: single bridge functionality, e.g. connection of two networks over a single bridge
H04L 12/00
Data switching networks
H02H 9/041
Responsive to excess voltage: using a short-circuiting device