# US 12,763,247 B2 · Inductor device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,763,247 B2 - Document ID: US12763247B2 - Status: Granted - Kind: B2 - Application number: 18/056,261 - Filed: 2022-11-17 - Published: 2023-05-18 - Granted: 2026-10-13 - Earliest claimed: 2021-11-18 - Assignees: Realtek Semiconductor Corp. - Applicants: Realtek Semiconductor Corporation - Inventors: Hsiao-Tsung Yen - Web page: https://patentgrep.com/patent/US12763247B2 ## CPC - H01F 27/2804: {Printed windings} - H01F 27/306: {Fastening or mounting coils or windings on core, casing or other support} - H01F: MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES ## Abstract An inductor device includes a plurality of coils, a first central connecting portion and a plurality of side connecting portions. The coils include a first winding including a plurality of first coils and a second winding including a plurality of second coils. The first central connecting portion is configured to couple the first coils and the second coils which are interleaved, so that a first one of the second coils is coupled to a second one of the second coils. The side connecting portions are configured on two sides of the first central connecting portion and each configured to couple the second one of the second coils to a third one of the second coils, so that the second one of the second coils and a first one of the first coils compose one of the coils of the inductor device. ## Claims ### Claim 1 An inductor device, comprising: a plurality of coils comprising: a first winding comprising a plurality of first coils; and a second winding comprising a plurality of second coils; a first central connecting portion configured to couple the plurality of first coils and the plurality of second coils which are interleaved, so that a first one of the plurality of second coils is coupled to a second one of the plurality of second coils; and a plurality of side connecting portions configured on two sides of the first central connecting portion and each configured to couple the second one of the plurality of second coils to a third one of the plurality of second coils, so that the second one of the plurality of second coils and a first one of the plurality of first coils compose one of the plurality of coils of the inductor device; wherein the second one of the plurality of second coils is close adjacent to the third one of the plurality of second coils, wherein the plurality of first coils comprises a middle first coil, the plurality of second coils comprises an outermost second coil, and the plurality of side connecting portions each are further configured to couple the middle first coil and to couple the outermost second coil, wherein the plurality of side connecting portions each comprises: a first connecting member configured to couple a first part and a second part of the middle first coil; and a second connecting member configured to couple a third part and a fourth part of the outermost second coil, wherein the first connecting member and the second connecting member are intersected with each other, and the first connecting member and the second connecting member are in different layers. ### Claim 2 (depends on 1) The inductor device of claim 1, wherein the plurality of first coils further comprises an outermost first coil, the first part is arranged between the outermost first coil and the third part, and the fourth part is arranged between the outermost first coil and the second part. ### Claim 3 (depends on 1) The inductor device of claim 1, wherein the plurality of first coils comprises an outermost first coil, the middle first coil and an innermost first coil, the plurality of second coils comprises the outermost second coil and an innermost second coil, and the first central connecting portion comprises: a first crossing portion configured to couple the innermost first coil and the middle first coil; and a second crossing portion configured to couple the outermost second coil and the innermost second coil, wherein the first crossing portion and the second crossing portion are incompletely overlapped with each other. ### Claim 4 (depends on 3) The inductor device of claim 3, wherein the first crossing portion comprises a third connecting member, and the third connecting member is configured to couple the innermost first coil and the middle first coil. ### Claim 5 (depends on 4) The inductor device of claim 4, wherein the first crossing portion further comprises a fourth connecting member, and the fourth connecting member is configured to couple the innermost first coil and the middle first coil, wherein the third connecting member and the fourth connecting member are intersected with each other, and the third connecting member and the fourth connecting member are in different layers. ### Claim 6 (depends on 5) The inductor device of claim 5, wherein the second crossing portion comprises a fifth connecting member, and the fifth connecting member is configured to couple the outermost second coil and the innermost second coil, wherein the fifth connecting member is intersected with the fourth connecting member, is not overlapped with the third connecting member and is in same layer with the third connecting member. ### Claim 7 (depends on 6) The inductor device of claim 6, wherein the second crossing portion further comprises a sixth connecting member, and the sixth connecting member is configured to couple the outermost second coil and the innermost second coil, wherein the sixth connecting member is intersected with the third connecting member and the fifth connecting member, is not overlapped with the fourth connecting member and is in same layer with the fourth connecting member. ### Claim 8 (depends on 3) The inductor device of claim 3, wherein the inductor device further comprises a second central connecting portion, the first central connecting portion is on a first side of the inductor device, and the second central connecting portion is on a second side of the inductor device, wherein the first side is different from the second side. ### Claim 9 (depends on 8) The inductor device of claim 8, wherein the second central connecting portion comprises a third crossing portion, and the third crossing portion is configured to couple the outermost first coil and the middle first coil. ### Claim 10 (depends on 9) The inductor device of claim 9, wherein the third crossing portion comprises a third connecting member, and the third connecting member is configured to couple the outermost first coil and the middle first coil. ### Claim 11 (depends on 10) The inductor device of claim 10, wherein the third crossing portion further comprises a fourth connecting member, and the fourth connecting member is configured to couple the outermost first coil and the middle first coil, wherein the third connecting member and the fourth connecting member are intersected with each other, and the third connecting member and the fourth connecting member are in different layers. ### Claim 12 (depends on 8) The inductor device of claim 8, wherein the plurality of side connecting portions are on the first side of the inductor device. ### Claim 13 (depends on 8) The inductor device of claim 8, wherein the plurality of side connecting portions are on a third side and a fourth side of the inductor device respectively, wherein the third side is different from the first side and the second side, the fourth side is different from the first side and the second side, and the third side is different from the fourth side. ### Claim 14 (depends on 8) The inductor device of claim 8, wherein the plurality of side connecting portions are on the second side of the inductor device. ### Claim 15 (depends on 8) The inductor device of claim 8, wherein the inductor device further comprises a first input-output terminal and a second input-output terminal, the first input-output terminal is coupled to the outermost first coil on the first side of the inductor device, and the second input-output terminal is coupled to the outermost second coil on the second side of the inductor device.