Inductive device

Abstract

An inductor device includes a first trace, a second trace, an input / output terminal, a center tap terminal, and a staggered connection. The first trace is located on a first layer. The second trace is located on the first layer. The input / output terminal is disposed on a first side of the inductor device. The center tap terminal is disposed on a second side of the inductor device. The staggered connection is disposed on a third side or a fourth side of the inductor device and is configured to couple the first trace or the second trace. The input / output terminal and the center tap terminal are not connected by the staggered connection.

Description

Technical Field

[0001] This case relates to an electronic device, and more particularly to an inductive device. Background Technology

[0002] Each type of existing inductor has its advantages and disadvantages. For example, inductors with interleaved structures have lower inductance density. Furthermore, the interleaved structure is usually located in the center of the inductor, which limits its design. Therefore, the application range of these inductors is somewhat restricted. Summary of the Invention

[0003] This embodiment relates to an inductor device, which includes a first trace, a second trace, an input / output terminal, a center tap, and an interleaved connection portion. The first trace is located on a first layer. The second trace is located on the first layer. The input / output terminal is disposed on a first side of the inductor device. The center tap is disposed on a second side of the inductor device. The interleaved connection portion is disposed on a third or fourth side of the inductor device and is used to couple the first trace or the second trace. The connection between the input / output terminal and the center tap does not include an interleaved connection structure.

[0004] Therefore, according to the technical content of this case, the interleaved connection portion of the inductor shown in the embodiment of this case is disposed on both sides of the inductor, and does not need to be disposed in the center of the inductor. Therefore, the inductor design of this case can be simplified and the size of the inductor can be further reduced. Attached Figure Description

[0005] To make the above and other objects, features, advantages and embodiments of this disclosure more apparent and understandable, the accompanying drawings are described below:

[0006] Figure 1 This is a schematic diagram illustrating an inductor device according to an embodiment of the present disclosure.

[0007] Figure 2 This is a schematic diagram illustrating an integrated inductor according to an embodiment of the present disclosure.

[0008] Figure 3 This is a schematic diagram illustrating an inductor device according to an embodiment of the present disclosure.

[0009] Figure 4 This is a schematic diagram illustrating an inductor device according to an embodiment of the present disclosure.

[0010] Figure 5 This is a schematic diagram illustrating experimental data of an inductor device according to an embodiment of the present disclosure.

[0011] In accordance with customary practices, the various features and components in the drawings are not drawn to scale; rather, they are drawn in a manner that best represents the specific features and components relevant to this disclosure. Furthermore, similar components / parts are referred to using the same or similar component symbols across different drawings. Detailed Implementation

[0012] To make the description of this disclosure more detailed and complete, illustrative descriptions of the implementation methods and specific embodiments of this case are provided below; however, this is not the only form of implementing or using the specific embodiments of this case. The implementation methods cover the features of multiple specific embodiments and the method steps and their order for constructing and operating these specific embodiments. However, other specific embodiments may also be used to achieve the same or equivalent functions and order of steps.

[0013] Unless otherwise defined in this specification, the scientific and technical terms used herein have the same meaning as understood and commonly used by one of ordinary skill in the art to which this application pertains. Furthermore, unless conflicting with the context, singular nouns used herein include their plural forms, and vice versa.

[0014] Figure 1 This is a schematic diagram illustrating an inductor device 1000 according to an embodiment of the present disclosure. As shown in the figure, the inductor device 1000 includes a first trace 1100, a second trace 1200, an input / output terminal 1300, a central tap terminal 1400, and an interleaved connection portion 1500.

[0015] Structurally, the first trace 1100 and the second trace 1200 are both located on the first layer. The input / output terminal 1300 is disposed on the first side of the inductor 1000, and the center tap terminal 1400 is disposed on the second side of the inductor 1000. An interleaved connection portion 1500 is disposed on the third or fourth side of the inductor 1000, and the interleaved connection portion 1500 is used to couple the first trace 1100 or the second trace 1200. For example, the input / output terminal 1300 is disposed on the upper side of the inductor 1000, and the center tap terminal 1400 is disposed on the lower side of the inductor 1000. The interleaved connection portion 1500 is disposed on the left or right side of the inductor 1000.

[0016] Furthermore, the connection between the input / output terminal 1300 and the center tap terminal 1400 does not include an interleaving structure. For example, the connection 1700 between the input / output terminal 1300 and the center tap terminal 1400 does not have any interleaving structure. In this invention, the interleaving portion 1500 is positioned on the left or right side of the inductor 1000, rather than on the connection 1700. This simplifies the design of the inductor 1000 and further reduces its size.

[0017] In one embodiment, the inductor 1000 further includes an extension 1600. The extension 1600 is located on a second layer. The extension 1600 is coupled to the input / output terminal 1300 and extends over the central tap terminal 1400. In this way, the input / output terminal 1300 can be extended to the same side as the central tap terminal 1400 via the extension 1600. Furthermore, due to the structural design of the inductor 1000, the inductor 1000 can be completed with only two layers.

[0018] Please see Figure 1 The extension 1600 includes a first end 1610 and a second end 1620. The first end 1610 of the extension 1600 is coupled to the input / output terminal 1300, and the second end 1620 of the extension 1600 is disposed on the central tap terminal 1400.

[0019] In one embodiment, the extension 1600 is not coupled to the central tap 1400. In another embodiment, the extension 1600 crosses the first trace 1100 and the second trace 1200, but does not cross the staggered connection structure 1500. In other embodiments, the extension 1600 does not overlap with the staggered connection structure 1500 in the direction perpendicular to the first trace 1100 and the second trace 1200. For example, the first trace 1100 and the second trace 1200 are located in the XY plane shown in the figure, and the extension 1600 does not overlap with the staggered connection structure 1500 on the Z-axis perpendicular to the XY plane.

[0020] In one embodiment, the interleaved connection portion 1500 includes a first interleaved connector 1510 and a second interleaved connector 1520. The first interleaved connector 1510 is disposed on a third side of the inductor device 1000 and is used to couple a first trace 1100. Furthermore, the second interleaved connector 1520 is disposed on a fourth side of the inductor device 1000 and is used to couple a second trace 1200. For example, the first interleaved connector 1510 is disposed on the left side of the inductor device 1000 and is used to couple sub-traces 1110 and 1130 of the first trace 1100. Furthermore, the second interleaved connector 1520 is disposed on the right side of the inductor device 1000 and is used to couple sub-traces 1210 and 1230 of the second trace 1200.

[0021] In one embodiment, the first interleaved connector 1510 crosses the first trace 1100 and the second trace 1200, and the second interleaved connector 1520 crosses the first trace 1100 and the second trace 1200.

[0022] In another embodiment, the first trace 1100 is wound into a first coil 1100 (e.g., three turns of sub-traces 1110, 1120, 1130, etc.), and the second trace 1200 is wound into a second coil 1200 (e.g., three turns of sub-traces 1210, 1220, 1230, etc.). The first coil 1100 and the second coil 1200 are symmetrical to each other. For example, the first coil 1100 and the second coil 1200 are symmetrical about their center point 1800.

[0023] In one embodiment, the input / output terminal 1300 and the center tap terminal 1400 are located on the first layer. In another embodiment, the staggered connection portion 1500 is located on the second layer. In one embodiment, the first layer is different from the second layer.

[0024] In another embodiment, the first side of the inductor 1000 is different from the second side, and the third side of the inductor 1000 is different from the fourth side. In one embodiment, the first side and the second side of the inductor 1000 are opposite sides of the inductor 1000, and the third side and the fourth side of the inductor 1000 are opposite sides of the inductor 1000. For example, the first side of the inductor 1000 is the upper side, the second side is the lower side, the third side is the left side, and the fourth side is the right side. It should be noted that this embodiment does not... Figure 1 The structure shown is limited and is only used to illustrate one of the implementation methods of this case.

[0025] Figure 2 A schematic diagram of an integrated inductor is shown according to an embodiment of this disclosure. As shown in the figure, this invention can... Figure 1The inductors 1000 are arranged side by side, and the input / output terminals 1300 are extended via extensions 1600 to the same side as the central tap terminal 1400 (as shown in the upper part of the figure). It should be noted that... Figure 2 In the embodiments, the component labels are similar to Figure 1 The component labels in the document have similar structural features, and for the sake of brevity, they will not be described in detail here. Furthermore, this case does not rely on... Figure 2 The structure shown is limited and is only used to illustrate one of the implementation methods of this case.

[0026] Figure 3 A schematic diagram of an inductor device 1000A is shown according to an embodiment of this disclosure. Compared to Figure 1 The inductor device 1000 shown is... Figure 3 The configurations of the first trace 1100A, the second trace 1200A, and the crossover connection 1500A of the inductor device 1000A are different.

[0027] As shown in the figure, the first trace 1100A is wound into at least two first coils, and the second trace 1200A is wound into at least two second coils. The first interlacing connector 1510A of the interlacing connection portion 1500A crosses over at least two first coils and at least two second coils. For example, the first trace 1100A is wound into first coils 1110A, 1120A, and 1130A, and the second trace 1200A is wound into second coils 1210A, 1220A, and 1230A. The first interlacing connector 1510A crosses over the first coils 1110A, 1120A, and 1130A and the second coils 1210A, 1220A, and 1230A. Figure 3 The input / output terminal 1300A can be extended to the same side as the center tap 1400A by a pull wire through the center point 1800A.

[0028] In one embodiment, the second interlacing connector 1520A of the interlacing connection portion 1500A spans at least two first coils and at least two second coils. For example, the second interlacing connector 1520A of the interlacing connection portion 1500A spans the first coils 1110A, 1120A, and 1130A and the second coils 1210A, 1220A, and 1230A. It should be noted that in Figure 3 In the embodiments, the component labels are similar to Figure 1 The component labels in the document have similar structural features, and for the sake of brevity, they will not be described in detail here. Furthermore, this case does not rely on... Figure 3 The structure shown is limited and is only used to illustrate one of the implementation methods of this case.

[0029] Figure 4A schematic diagram of an inductor device 1000B is shown according to an embodiment of this disclosure. Compared to Figure 1 The inductor device 1000 shown is... Figure 4 The configurations of the first trace 1100B, the second trace 1200B, and the crossover connection 1500B of the inductor device 1000B are different.

[0030] As shown in the figure, the first interleaved connector 1510B is disposed on the left side of the inductor 1000B, and is used to couple sub-routes 1110B and 1120B of the first trace 1100B. The second interleaved connector 1520B is disposed on the right side of the inductor 1000B, and is used to couple sub-routes 1210B and 1220B of the second trace 1200B. Figure 4 The input / output terminal 1300B can be extended to the same side as the center tap 1400B by a wire through the center point 1800B.

[0031] In one embodiment, the interleaved connection portion 1500B further includes a third interleaved connector 1530B and a fourth interleaved connector 1540B. The third interleaved connector 1530B is disposed on the third side of the inductor device 1000B and is used to couple the second trace 1200B. Furthermore, the fourth interleaved connector 1540B is disposed on the fourth side of the inductor device 1000B and is used to couple the first trace 1100B. For example, the third interleaved connector 1530B is disposed on the left side of the inductor device 1000B and is used to couple the sub-trace 1220B and sub-trace 1230B of the second trace 1200B. In addition, the fourth interleaved connector 1540B is disposed on the right side of the inductor 1000B, and the fourth interleaved connector 1540B is used to couple the sub-trace 1120B and sub-trace 1130B of the first trace 1100B.

[0032] In another embodiment, the first trace 1100B is wound into at least two first coils 1100B, and the second trace 1200B is wound into at least two second coils 1200B. A first interleaved connector 1510B crosses over the sub-coil 1110B of the first coil 1100B and the sub-coil 1210B of the second coil 1200B, and a second interleaved connector 1520B crosses over the sub-coil 1120B of the first coil 1100B and the sub-coil 1210B of the second coil 1200B.

[0033] In one embodiment, the third interleaved connector 1530B spans the sub-coil 1130B of the first coil 1100B and the sub-coil 1220B of the second coil 1200B, and the fourth interleaved connector 1540B spans the sub-coil 1120B of the first coil 1100B and the sub-coil 1230B of the second coil 1200B. It should be noted that in... Figure 4 In the embodiments described, the component labels are similar to those in Figure 1 and have similar structural features; therefore, for the sake of brevity, they will not be described in detail here. Furthermore, this invention does not... Figure 4 The structure shown is limited and is only used to illustrate one of the implementation methods of this case.

[0034] Figure 5 A schematic diagram illustrating experimental data of inductor devices 1000, 1000A, and 1000B according to an embodiment of this invention is shown. As shown, using the architecture configuration of this invention, the experimental curves of the inductance values ​​of the first traces 1100, 1100A, and 1100B in common-mode are L1, while the experimental curves of the inductance values ​​of the second traces 1200, 1200A, and 1200B are L2. As shown, the inductance value curves L1 and L2 of the two traces are very close, indicating that the configuration of inductor devices 1000, 1000A, and 1000B in this invention is highly symmetrical.

[0035] As can be seen from the above embodiments of this invention, applying this invention has the following advantages. The interleaved connection portion of the inductor shown in this embodiment is disposed on both sides of the inductor, and does not need to be disposed in the center of the inductor. Therefore, the inductor design of this invention can be simplified, and the size of the inductor can be further reduced.

[0036] Explanation of reference numerals in the attached figures:

[0037] 1000, 1000A: Inductor

[0038] 1100, 1100A, 1100B: First routing

[0039] 1110, 1110A, 1110B: Sub-routes

[0040] 1120, 1120A, 1120B: Sub-wiring

[0041] 1130, 1130A, 1130B: Sub-wiring

[0042] 1200, 1200A, 1200B: Second wiring route

[0043] 1210, 1210A, 1210B: Sub-wiring

[0044] 1220, 1220A, 1220B: Sub-wiring

[0045] 1230, 1230A, 1230B: Sub-wiring

[0046] 1300, 1300A, 1300B: Input / output terminals

[0047] 1400, 1400A, 1400B: Central tap end

[0048] 1500, 1500A, 1500B: Interlocking connection section

[0049] 1510, 1510A, 1510B: First staggered connector

[0050] 1520, 1520A, 1520B: Second staggered connector

[0051] 1530B: Third staggered connector

[0052] 1540B: ​​Fourth staggered connector

[0053] 1600: Extension

[0054] 1610: First End

[0055] 1620: Second End

[0056] 1700, 1700A, 1700B: Connection

[0057] 1800, 1800A, 1800B: Center point

[0058] L1, L2: Curves

Claims

1. An inductor device, comprising: The first wiring route is located on the first floor; The second wiring route is located on this first floor; The input and output terminals are located on the first side of the inductor. The central tap is located on the second side of the inductor. as well as An interleaved connection portion is disposed on the third or fourth side of the inductor and is used to couple the first trace or the second trace. The crossover connection portion is not included in the connection line between the input / output terminal and the center tap terminal. The interlacing connection portion includes: A first interleaved connector is disposed on the third side of the inductor and is used to couple the sub-trace of the first trace. as well as The second interleaved connector is disposed on the fourth side of the inductor and is used to couple the sub-trace of the second trace.

2. The inductor device according to claim 1, further comprising: An extension, located on the second layer, is coupled to the input / output terminal and extends over the central tap.

3. The inductor device according to claim 2, wherein the extension is not coupled to the central tap, wherein the extension crosses the first trace and the second trace, and does not cross the crossover connection, wherein the extension does not overlap with the crossover connection in a direction perpendicular to the first trace and the second trace.

4. The inductor device of claim 3, wherein the extension comprises: The first terminal is coupled to the input / output terminal; as well as The second end is positioned on the central tap end.

5. The inductor device of claim 1, wherein the first interleaved connector crosses the first trace and the second trace, and the second interleaved connector crosses the first trace and the second trace.

6. The inductor device of claim 1, wherein the first trace is wound into at least two first coils and the second trace is wound into at least two second coils, wherein the first interleaved connector crosses the at least two first coils and the at least two second coils, and wherein the second interleaved connector crosses the at least two first coils and the at least two second coils.

7. The inductor device according to claim 1, wherein the interleaved connection portion further comprises: A third staggered connector is disposed on the third side of the inductor and is used to couple the second trace. as well as A fourth interleaved connector is disposed on the fourth side of the inductor and used to couple the first trace, wherein the first trace is wound into at least two first coils and the second trace is wound into at least two second coils, wherein the first interleaved connector crosses one of the at least two first coils and one of the at least two second coils, and the second interleaved connector crosses one of the at least two first coils and one of the at least two second coils, wherein the third interleaved connector crosses one of the at least two first coils and one of the at least two second coils, and the fourth interleaved connector crosses one of the at least two first coils and one of the at least two second coils.

8. The inductor device according to claim 1, wherein the first trace is wound into a first coil and the second trace is wound into a second coil, wherein the first coil and the second coil are symmetrical to each other, and wherein the first coil and the second coil are point-symmetrical to each other.

9. The inductor device according to claim 2, wherein the input / output terminal and the central tap terminal are located in the first layer, wherein the interleaved connection portion is located in the second layer, and wherein the first layer is different from the second layer.

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