Ethernet transformer module
Patent Information
- Application Number
- TW115202085
- Authority / Receiving Office
- TW · TW
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2026-03-10
- Publication Date
- 2026-09-01
- Estimated Expiration
- 2036-03-09
Smart Images
Figure TWG2TB001909317_001 
Figure TWG2TB001909317_002 
Figure TWG2TB001909317_003
Abstract
Claims
1. A network transformer module, comprising: an isolation transformer including a primary winding; a first power inductor including a first power winding and a second power winding, the primary winding, the first power winding and the second power winding being coupled to each other in a delta topology; a first transmission terminal coupled between the primary winding and the first power winding for transmitting power signals and data signals; a second transmission terminal coupled between the primary winding and the second power winding for transmitting power signals and data signals; and a first intermediate tap coupled between the first power winding and the second power winding for transmitting power signals.
2. The network transformer module as described in claim 1, wherein the first power inductor further includes a first magnetic core, the first magnetic core having a first winding region, the first power winding including a first winding wire, the second power winding including a second winding wire, the first winding wire and the second winding wire being wound in the first winding region in the same winding direction.
3. The network transformer module as described in claim 2, wherein the first winding forms a plurality of first coil turns in the first winding region, and the second winding forms a plurality of second coil turns in the first winding region, with each of the first coil turns and each of the second coil turns arranged in parallel.
4. The network transformer module as described in claim 2, wherein the first winding and the second winding are twisted together to form a first strand and wound around the first winding area.
5. The network transformer module as described in claim 2, wherein the first winding includes a first starting end and a first ending end, the second winding includes a second starting end and a second ending end, the first transmission end is coupled to the first starting end, the second transmission end is coupled to the second ending end, and the first ending end, the second starting end and the first intermediate tap end are coupled to each other.
6. The network transformer module as described in claim 2, wherein the isolation transformer further includes a primary winding, and the network transformer module further includes: a second power inductor including a third power winding and a fourth power winding, the secondary winding, the third power winding and the fourth power winding being delta-coupled to each other; a third transmission terminal coupled between the secondary winding and the third power winding for transmitting power signals and data signals; a fourth transmission terminal coupled between the secondary winding and the fourth power winding for transmitting power signals and data signals; and a second intermediate tap coupled between the third power winding and the fourth power winding for transmitting power signals.
7. The network transformer module as described in claim 6, wherein the second power inductor further includes a second magnetic core, the second magnetic core having a second winding region, the third power winding including a third winding, the fourth power winding including a fourth winding, the third winding and the fourth winding being wound in the second winding region in the same winding direction.
8. The network transformer module as described in claim 7, wherein the third winding forms a plurality of third coil turns in the second winding region, and the fourth winding forms a plurality of fourth coil turns in the second winding region, with each of the third coil turns and each of the fourth coil turns arranged in parallel.
9. The network transformer module as described in claim 7, wherein the third winding and the fourth winding are twisted together to form a second winding and wound around the second winding area.
10. The network transformer module as described in claim 6, wherein the first magnetic core is provided with a third winding region, the first winding region and the third winding region are separated by a gap, the third power winding includes a third winding wire, the fourth power winding includes a fourth winding wire, the third winding wire and the fourth winding wire are wound in the third winding region in the same winding direction, and the first power winding and the second power winding are symmetrical to the third power winding and the fourth power winding.
11. The network transformer module as claimed in claim 10, wherein the third winding forms a plurality of third coil turns in the third winding region, and the fourth winding forms a plurality of fourth coil turns in the third winding region, wherein each of the third coil turns and each of the fourth coil turns are arranged in parallel.
12. The network transformer module as described in claim 10, wherein the third winding and the fourth winding are twisted together to form a second twisted wire and wound around the third winding area.
13. The network transformer module as described in claim 7 or 10, wherein the third winding includes a third start end and a third end end, the fourth winding includes a fourth start end and a fourth end end, the third transmission end is coupled to the third start end, the fourth transmission end is coupled to the fourth end end, and the third end end, the fourth start end and the second intermediate tap end are coupled to each other.
14. The network transformer module as described in claim 6, wherein the isolation transformer further includes a third magnetic core having a fourth winding region, the primary winding including a fifth winding, the secondary winding including a sixth winding, the fifth winding and the sixth winding being wound in the fourth winding region in the same winding direction.
15. The network transformer module as claimed in claim 14, wherein the fifth winding forms a plurality of fifth coil turns in the fourth winding region, and the sixth winding forms a plurality of sixth coil turns in the fourth winding region, wherein each of the fifth coil turns and each of the sixth coil turns are arranged in parallel.
16. The network transformer module as described in claim 14, wherein the fifth winding and the sixth winding are twisted together to form a third winding and wound around the fourth winding area.
17. The network transformer module as claimed in claim 14, wherein the fifth winding includes a fifth start end and a fifth end end, the sixth winding includes a sixth start end and a sixth end end, the first transmission end is coupled to the fifth start end, the second transmission end is coupled to the fifth end end, the third transmission end is coupled to the sixth start end, and the fourth transmission end is coupled to the sixth end end.
18. The network transformer module as described in claim 6 further includes a second common-mode inductor coupled to the second intermediate tap and a second power supply node.
19. The network transformer module as described in claim 18, wherein the number of the isolation transformer, the second power inductor, the third transmission terminal, the fourth transmission terminal and the second intermediate tap are two, and the second common mode inductor is coupled to the two second intermediate taps and the second power node.
20. The network transformer module as described in claim 19, wherein the second common-mode inductor includes a fifth magnetic core, a ninth winding, and a tenth winding, the fifth magnetic core having a sixth winding region, the ninth winding and the tenth winding being wound in the sixth winding region in the same winding direction, the ninth winding including a ninth start end and a ninth end, the tenth winding including a tenth start end and a tenth end, the ninth start end and the tenth start end being coupled to the second power node, the ninth end being coupled to one of the two second intermediate taps, and the tenth end being coupled to the other of the two second intermediate taps.
21. The network transformer module as claimed in claim 20, wherein the ninth winding forms a plurality of ninth coil turns in the sixth winding region, and the tenth winding forms a plurality of tenth coil turns in the sixth winding region, with each ninth coil turn and each tenth coil turn arranged in parallel.
22. The network transformer module as described in claim 20, wherein the ninth winding and the tenth winding are twisted together to form a fifth winding and wound around the sixth winding region.
23. The network transformer module as described in claim 1 further includes a first common-mode inductor coupled to the first intermediate tap and a first power node.
24. The network transformer module as described in claim 23, wherein the isolation transformer, the first power inductor, the first transmission terminal, the second transmission terminal and the first intermediate tap are each two, and the first common mode inductor is coupled to the two first intermediate taps and the first power node.
25. The network transformer module as claimed in claim 24, wherein the first common-mode inductor includes a fourth magnetic core, a seventh winding, and an eighth winding, the fourth magnetic core having a fifth winding region, the seventh winding and the eighth winding being wound in the fifth winding region in the same winding direction, the seventh winding including a seventh start end and a seventh end end, the eighth winding including an eighth start end and an eighth end end, the seventh start end and the eighth start end being coupled to the first power node, the seventh end end being coupled to one of the two first intermediate taps, and the eighth end end being coupled to the other of the two first intermediate taps.
26. The network transformer module as claimed in claim 25, wherein the seventh winding forms a plurality of seventh coil turns in the fifth winding region, and the eighth winding forms a plurality of eighth coil turns in the fifth winding region, with each of the seventh coil turns and each of the eighth coil turns arranged in parallel.
27. The network transformer module as described in claim 25, wherein the seventh winding and the eighth winding are twisted together to form a fourth winding and wound around the fifth winding region.