High-frequency high-power power amplifier inductor

Abstract

The invention relates to a high-frequency high-power power amplifier inductor, which comprises two magnetic cores, each magnetic core comprises a first end, a second end and a connecting part, and the first ends and the second ends of the two magnetic cores are oppositely arranged to form a closed magnetic circuit; the coil is wound from the first end of one magnetic core to the second end and then wound from the first end of the other magnetic core to the second end, and a first pin and a second pin extend outwards from the two ends of the coil; a plurality of sections of air gaps are formed between the two magnetic cores; the air gap is formed by separation of a magnetic sheet. The coil does not need to be wound on the connecting part, so that a considerable number of turns of coils are saved, materials are saved, and the purpose of reducing cost is achieved.

Description

Technical Field

[0001] This invention relates to the field of electronic components technology, and in particular to a high-frequency, high-power discharge inductor. Background Technology

[0002] High-frequency, high-power inductors achieve stable operation with low loss, high current, and high frequency, making them core components of high-performance power electronic systems such as digital power amplifiers, new energy inverters, and industrial power supplies. High-frequency, high-power inductors typically incorporate an air gap within the magnetic core. This air gap significantly increases saturation current, stabilizes parameters, improves linearity, and reduces cost. However, inductors with air gaps also require more coils for the same inductance (increasing copper consumption), and leakage flux increases, leading to EMI problems. Furthermore, the air gap in the magnetic core also increases the inductor's size. Existing high-frequency, high-power inductors struggle to overcome these technical drawbacks. Summary of the Invention

[0003] The main objective of this invention is to provide a high-frequency, high-power power discharge inductor, which can reduce copper losses in a high-frequency, high-power power discharge inductor.

[0004] To achieve the above objectives, the present invention provides a high-frequency, high-power power discharge inductor, comprising: Two magnetic cores, each including a first end, a second end and a connecting portion, wherein the connecting portion is used to connect the first end and the second end and the first end and the second end are located on the same side of the connecting portion, the first end and the second end of the two magnetic cores are arranged opposite to each other to form a closed magnetic circuit, and the magnetic cores are made of nanocrystalline material; A coil is wound from the first end of one of the magnetic cores to the second end, and then from the first end of the other magnetic core to the second end, with the two ends of the coil extending outward to form a first pin and a second pin. Several air gaps are provided between the two magnetic cores; The air gap is formed by magnetic plates.

[0005] According to one embodiment of the present invention, a plurality of uniformly distributed air gaps are provided between the first ends of the two magnetic cores.

[0006] According to one embodiment of the present invention, a plurality of uniformly distributed air gaps are provided between the first ends and the second ends of the two magnetic cores, and the air gaps between the two first ends and the two second ends are symmetrically distributed.

[0007] According to one embodiment of the present invention, the number of air gaps is 2-6 segments.

[0008] According to one embodiment of the invention, a gasket is also included, the gasket filling the air gap.

[0009] According to one embodiment of the present invention, the gasket is made of any one of ceramic, Nomi paper, and FR4 epoxy board.

[0010] According to one embodiment of the present invention, the winding density of the coil at the air gap corresponding to the magnetic core is less than the winding density on both sides of the air gap.

[0011] According to one embodiment of the invention, the magnetic core is further included with tape wrapped around it to cover the air gap.

[0012] According to one embodiment of the present invention, the system further includes a base, the magnetic core is disposed on one side of the base, and the base is provided with a lead hole for passing through the lead hole so that the first pin and the second pin are located on the side of the base opposite to the magnetic core.

[0013] According to one embodiment of the present invention, the base further includes a support member disposed on the side of the base opposite to the magnetic core.

[0014] According to one embodiment of the invention, a fixing member is further included, which surrounds the base and the magnetic core to secure the magnetic core and the base.

[0015] The embodiments of the present invention have the following beneficial effects: Using the high-frequency, high-power discharge inductor of this embodiment, the first ends of two magnetic cores are positioned opposite each other, and the second ends are positioned opposite each other. An air gap is provided between the two magnetic cores. The coil is wound from the first end of one magnetic core, then wound at the second end, and then sequentially wound to the first and second ends of the other magnetic core. When the coil is energized, an electromagnetic field is generated, forming a closed magnetic circuit between the two magnetic cores. The air gap formed by the magnetic sheets can improve the inductor's saturation current, stabilize parameters, improve linearity, and reduce cost. Because the magnetic cores are made of nanocrystalline material, they have a high UI value (above 20000), allowing the same inductance value to be achieved with a lower number of turns. Therefore, the coil does not need to be wound at the connection point, saving a considerable number of coil turns, conserving materials, and achieving the goal of cost reduction. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] in: Figure 1 This is a schematic diagram of the overall structure of a high-frequency, high-power power discharge inductor in one embodiment of the present invention; Figure 2 This is a schematic diagram of the overall structure of a high-frequency, high-power power discharge inductor from another angle in one embodiment of the present invention; Figure 3 This is an exploded structural diagram of a high-frequency, high-power power discharge inductor in one embodiment of the present invention. Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle; Figure 5 This is a schematic diagram of the assembly structure of the magnetic core in one embodiment of the present invention; Figure 6 This is a schematic diagram of the coil from one perspective in one embodiment of the present invention; Figure 7 This is a schematic diagram of the coil from another perspective in one embodiment of the present invention; Figure 8 This is a comparison curve of the inductance value-DC bias current (LI) characteristics between the present invention and existing technologies (iron powder core, ferrite). Figure 9 These are the loss comparison curves of the three magnetic cores under the test environment of 500kHz / 10mT in this invention. Figure 10 This is a comparison curve of THD+N distortion of different core materials under a 10W test environment in this invention.

[0018] Figure label: Magnetic core-10; First end-110; Second end-120; Connector-130; Coil-20; First pin-210; Second pin-220; Gasket-70; Tape-40; Base-50; Lead hole-510; Support-520; Fixing piece-60; Magnetic sheet-30. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0020] This invention provides a high-frequency, high-power power discharge inductor; please refer to [the relevant documentation]. Figures 1-7The high-frequency, high-power discharge inductor includes: Two magnetic cores 10 each include a first end 110, a second end 120, and a connecting portion 130. The connecting portion 130 is used to connect the first end 110 and the second end 120, and the first end 110 and the second end 120 are located on the same side of the connecting portion 130. The first ends 110 and the second ends 120 of the two magnetic cores 10 are arranged opposite to each other to form a closed magnetic circuit. The magnetic cores 10 are made of nanocrystalline material. The coil 20 is wound from the first end 110 of one of the magnetic cores 10 to the second end 120, and then from the first end 110 of the other magnetic core 10 to the second end 120. The two ends of the coil 20 extend outward to form a first pin 210 and a second pin 220. Several uniformly distributed air gaps (not shown in the figure) are provided between the first ends 110 of the two magnetic cores 10. Alternatively, several uniformly distributed air gaps are provided between the first end 110 and the second end 120 of the two magnetic cores 10, with the air gaps between the two first ends 110 and the air gaps between the two second ends 120 being symmetrically distributed. The air gap is formed by magnetic plates 30.

[0021] Using the high-frequency, high-power discharge inductor of this embodiment, the first ends 110 of two magnetic cores 10 are arranged opposite each other, and the second ends 120 are arranged opposite each other. An air gap is provided between the first ends 110 and 110, or simultaneously and symmetrically between the first ends 110 and 110 and between the second ends 120 and 120. The coil 20 is wound from the first end 110 of one magnetic core 10, then wound at the second end 120, and then sequentially wound at the first end 110 and the second end 120 of the other magnetic core 10. Thus, when the coil 20 is energized, it generates an electromagnetic field, forming a closed magnetic circuit between the two magnetic cores 10. The air gap formed by the magnetic sheets 30 can improve the saturation current of the inductor, stabilize parameters, improve linearity, and reduce cost. Since the magnetic cores 10 are made of nanocrystalline material, they have a high ui value (above 20000), allowing the same inductance value to be achieved with a lower number of turns. Therefore, coil 20 does not need to be wound around the connecting part 130, saving a considerable number of coil turns, saving materials, and achieving the goal of reducing costs.

[0022] Coil 20 refers to enameled wire, which is generally composed of copper wire coated with insulating varnish. Since copper is relatively expensive, it has a significant impact on the production cost of inductors.

[0023] The first pin 210 and the second pin 220 of the inductor are used to connect the positive and negative terminals of the power supply.

[0024] It should be noted that the air gap can be set only in the area where the two first ends 110 are opposite each other. Alternatively, it can be set simultaneously between the two first ends 110 and between the two second ends 120. The specific setting depends on the actual requirements of the inductor being manufactured.

[0025] For the magnetic core 10, the connecting portion 130 is generally straight or arc-shaped, preferably arc-shaped. A single magnetic core 10 is generally U-shaped.

[0026] The windings are arranged in a figure-eight pattern on the two upper yokes of the UU-shaped magnetic core 10. This winding method allows the winding coils 20 to be spaced out as much as possible, effectively reducing the inter-turn distributed capacitance and thus reducing capacitive losses under high-frequency switching.

[0027] The UU-type core 10 structure provides higher window utilization (up to 70% or more), allowing the use of thicker or multi-strand Litz wire to reduce DCR, thereby achieving greater power handling capacity in the same volume, or achieving a smaller volume for the same power.

[0028] The first pin 210 and the second pin 220 are fitted with Teflon sleeves or UL sleeves to insulate the pins, coil 20 and magnetic core 10, thereby enhancing reliability.

[0029] Please refer to Figure 7 The coil turns of coil 20 wound on the first end 110 and the second end 120 are staggered. The spacing between the coil turns wound on the first end 110 and the second end 120 can minimize the distributed capacitance between the coil turns and make the product performance more stable.

[0030] Please refer to Figure 10 The magnetic core made of nanocrystalline material exhibits significantly lower distortion than inductors made of other magnetic core materials. Therefore, the high-frequency, high-power discharge inductor in this invention can also effectively reduce distortion.

[0031] In one embodiment, the number of air gaps is 2-6 segments.

[0032] There are two air gaps. Typically, only one magnetic sheet 30 is placed between the two first ends 110, and the gasket 70 forms an air gap with each of the two first ends 110. At this time, the two second ends 120 abut against each other.

[0033] There are three air gaps. Typically, two magnetic plates 30 are positioned between the two first ends 110. Each magnetic plate 30 forms an air gap with each of the two first ends 110, and each magnetic plate 30 forms an air gap with itself. At this time, the two second ends 120 are in contact with each other.

[0034] There are four air gaps. Typically, one magnetic plate 30 is placed between the two first ends 110, and one magnetic plate 30 is placed between the two second ends 120. In this case, the magnetic plate 30 and the two first ends 110 each form an air gap, and the magnetic plate 30 and the two second ends 120 each form an air gap.

[0035] There are five air gaps, typically with four magnetic plates 30 positioned between the two first ends 110. In this configuration, the magnetic plates 30 and the two first ends 110 form two air gaps, and the four magnetic plates 30 form three air gaps. The two second ends 120 are also in contact with each other.

[0036] If there are six air gaps, then two spaced magnetic sheets 30 are provided between the two first ends 110, and two spaced magnetic sheets 30 are provided between the two second ends 120. Air gaps are formed between magnetic sheets 30 and between magnetic sheets 30 and the first end 110 or the second end 120. This arrangement forms exactly six air gaps.

[0037] Other air gap settings refer to the above magnetic sheet 30 settings, but it is necessary to ensure that when there are air gaps between the two first ends 110 and the two second ends 120, the air gaps between the two first ends 110 and the air gaps between the two second ends 120 are symmetrically set.

[0038] In one embodiment, a gasket 70 is also included, which fills the air gap.

[0039] The shim 70 is mainly used to fill and position the air gaps. The thickness of the shim 70 is consistent, thus ensuring that the width of multiple air gaps is consistent. The shim 70 can also fix the magnet 30 to prevent it from shaking.

[0040] It should be noted that the air gap is an air gap, and the gasket 70 is not the same as the air gap. The gasket 70 simply fills the air gap. The air gap is formed by the spacing between magnetic sheets 30, or between magnetic sheets 30 and magnetic core 10. The magnetic sheets 30 are fixedly installed by abutting against the gasket 70 to form the air gap. The gasket 70 and magnetic sheets 30 complement each other.

[0041] In one embodiment, the gasket 70 is made of any one of ceramic, Nomex paper, and FR4 epoxy board.

[0042] Gasket 70 is made of high-frequency insulating material, which can meet the requirements of high-frequency insulation.

[0043] In one embodiment, please refer to Figure 3 and Figure 6 The winding density of coil 20 at the air gap corresponding to magnetic core 10 is less than the winding density on both sides of the air gap.

[0044] During winding, the winding should avoid the multi-air-gap region between the two magnetic cores 10, forming a "butterfly-shaped" layout that is sparse in the middle and dense at both ends. This minimizes the overlap of the coil 20 with the magnetic flux at the edge of the air gap, reducing eddy current losses. In other words, it avoids the radiation of the edge magnetic flux generated by the air gap at the connection point to the coil, achieving the goal of low eddy current losses.

[0045] In one embodiment, the magnetic core 10 is also wrapped with tape 40 to cover the air gap.

[0046] Tape 40 is generally a high-temperature resistant tape 40. Tape 40 is used to cover the air gap to prevent the sharp edges of the air gap from scratching the coil 20 during winding.

[0047] In one embodiment, the system further includes a base 50, with the magnetic core 10 disposed on one side of the base 50. The base 50 is provided with a lead hole 510, which is used to pass through a first pin 210 and a second pin 220 so that the first pin 210 and the second pin 220 are located on the side of the base 50 away from the magnetic core 10.

[0048] The base 50 is made of bakelite, LCP material, or FR4 board. The first pin 210 and the second pin 220 pass through the lead hole 510 and are thus soldered onto the circuit board. At this time, the coil 20, along with the magnetic core 10, abuts against the base 50, making it impossible for the base 50 to separate from the magnetic core 10.

[0049] In one embodiment, the support member 520 is disposed on the side of the base 50 away from the magnetic core 10.

[0050] In this embodiment, the main function of the support member 520 is to suspend the base 50, thus making the base 50 suspended in the air. Suspending the base 50 increases the contact area between the high-frequency, high-power discharge inductor and the air, thereby improving heat dissipation.

[0051] In one embodiment, a fixing member 60 is also included, which surrounds the base 50 and the magnetic core 10 to secure the magnetic core 10 and the base 50.

[0052] The fastener 60 is used to further bind the magnetic core 10 and the base 50. Typically, the fastener 60 is also a high-temperature resistant strap, which is wrapped around the coil 20 and the base 50 to fix the base 50 and the magnetic core 10 together.

[0053] In one embodiment, the magnetic core 10 is made of nanocrystalline material.

[0054] Traditional iron powder core magnetic ring inductors: When the switching frequency exceeds 300kHz, the core loss increases sharply, resulting in severe heat generation. At the same time, its toroidal structure leads to low utilization of the winding window (typically only 40%-50%), necessitating the use of fine-diameter enameled wire, which results in a large DC resistance (DCR), making it unsuitable for high-power applications.

[0055] Carbonyl iron powder magnetic ring inductor: Although it improves current linearity and reduces core loss, its permeability is too low (about 10), requiring a large number of turns to achieve the target inductance value, resulting in extremely high DCR, high low-frequency loss, and large size.

[0056] Ferrite core open-gap inductors: These inductors utilize shielded ferrite cores wound with thicker or flat wire, achieving lower DCR and core losses in a smaller footprint. However, an air gap is necessary to adjust the inductance and saturation current. At high frequencies, the edge flux at the air gap generates significant eddy current losses in the coil, leading to coil heating and increased copper losses. Furthermore, the permeability and anti-saturation capability of the ferrite core decrease with increasing temperature, affecting system stability.

[0057] Nanocrystalline magnetic cores have ultra-fine grain size (10-20nm), which greatly improves the equivalent resistivity inside the material. At high frequencies (1MHz~2MHz), the core loss is much lower than that of iron powder cores and ordinary ferrites.

[0058] Nanocrystalline materials have extremely high saturation magnetic induction (typically >1.2T), which is more than twice that of ferrite (about 0.5T), and inherently have stronger resistance to DC bias.

[0059] The permeability of nanocrystalline magnetic cores changes very little with temperature, and their Curie temperature is much higher than that of ferrite. Their magnetic properties are stable within the operating temperature range (-55℃ ~ +130℃), and they do not suffer from the problems of sudden drop in permeability and saturation point caused by temperature rise that occur with ferrite. This ensures the stability of the power amplifier system across the entire temperature range.

[0060] The high saturation magnetic flux density of nanocrystalline materials allows the same current to pass through a smaller core cross-sectional area, laying the foundation for miniaturization.

[0061] In one embodiment, the magnetic sheet 30 is made of nanocrystalline material or ferrite material with a Bs value of not less than 0.5T.

[0062] Using nanocrystalline magnetic sheets 30 as segmented small air gaps can effectively reduce edge magnetic flux interference from local large air gaps, making the magnetic circuit smoother, reducing the radiation of edge magnetic flux to the inductor winding, and reducing the eddy current loss of the winding. The nanocrystalline saturation magnetic flux density is as high as 1.2T or more, which can greatly improve the saturation current of the inductor and smooth the linearity of the current.

[0063] Using high Bs values ​​(not less than 0.5T) ferrite I-sheets as segmented small air gaps effectively reduces edge magnetic flux interference from localized large air gaps, resulting in a smoother magnetic circuit, reduced radiation of edge magnetic flux to the inductor winding, and lower eddy current losses in the winding. Ferrite has low high-frequency losses, and the edge magnetic flux at the air gap has little impact on it, making it a low-cost solution for higher frequency bands.

[0064] In one embodiment, the surface of the magnetic core 10 is treated with an insulating coating.

[0065] For example, epoxy resin or other insulating varnish can be sprayed to enhance the insulation strength between the coil 20 and the magnetic core 10 and prevent breakdown.

[0066] In one embodiment, coil 20 is Litz wire with a diameter not less than twice the skin depth.

[0067] The skin effect refers to the uneven distribution of current density across the cross-section of a conductor, primarily concentrated near the surface. The higher the frequency, the more concentrated the current becomes towards the surface. Skin depth (δ) is the core parameter describing the intensity of the skin effect, defined as: The vertical depth at which the current density drops to 1 / e (approximately 37%) of the current density at the conductor surface; Or, when an electromagnetic wave propagates in a lossy medium, the distance it travels to reduce its amplitude to 1 / e of its initial value.

[0068] Litz wire is a special conductor structure made of multiple independently insulated fine wires twisted or braided together. Its core design goal is to reduce skin effect and proximity effect losses in high-frequency electromagnetic equipment. As the operating frequency increases, the skin depth decreases, causing current to concentrate on the conductor surface. Litz wire effectively reduces AC resistance by dividing a single conductor into several fine wires with a diameter smaller than the skin depth, making the current distribution in each wire more uniform.

[0069] Please refer to Figure 8 The same size magnetic core is made of 10 material, and the design structure of nanocrystalline multi-segment air gap is far superior to other materials in terms of DC bias capability and filtering effect.

[0070] Please refer to Figure 9 The nanocrystalline magnetic core 10, combined with the ferrite magnetic sheet 30, exhibits extremely low core loss. This further reduces the loss of digital power inductors, lowers inductor temperature, increases inductor reliability, and thus improves the efficiency of digital power amplifiers.

[0071] Please refer to Figure 10The nanocrystalline magnetic core with a multi-air gap structure design and digital power discharge inductor, when compared with iron powder core and ferrite power discharge inductors at 10W power, exhibits extremely low THD+N distortion and achieves excellent listening performance.

[0072] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0073] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0074] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0075] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high-frequency, high-power discharge inductor, characterized in that, include: Two magnetic cores, each including a first end, a second end and a connecting portion, wherein the connecting portion is used to connect the first end and the second end and the first end and the second end are located on the same side of the connecting portion, the first end and the second end of the two magnetic cores are arranged opposite to each other to form a closed magnetic circuit, and the magnetic cores are made of nanocrystalline material; A coil is wound from the first end of one of the magnetic cores to the second end, and then from the first end of the other magnetic core to the second end, with the two ends of the coil extending outward to form a first pin and a second pin. Several air gaps are provided between the two magnetic cores; The air gap is formed by magnetic plates.

2. The high-frequency, high-power discharge inductor as described in claim 1, characterized in that, Several uniformly distributed air gaps are provided between the first ends of the two magnetic cores.

3. The high-frequency, high-power discharge inductor as described in claim 1, characterized in that, Several uniformly distributed air gaps are provided between the first ends and the second ends of the two magnetic cores, and the air gaps between the two first ends and the two second ends are symmetrically distributed.

4. The high-frequency, high-power discharge inductor as described in claim 1, characterized in that, The number of air gaps is 2-6.

5. The high-frequency, high-power discharge inductor as described in claim 1, characterized in that, It also includes a gasket that fills the air gap.

6. The high-frequency, high-power discharge inductor as described in claim 5, characterized in that, The gasket is made of any one of the following materials: ceramic, Nomi paper, and FR4 epoxy board.

7. The high-frequency, high-power discharge inductor as described in claim 1, characterized in that, The winding density of the coil at the air gap corresponding to the magnetic core is less than the winding density on both sides of the air gap.

8. The high-frequency, high-power discharge inductor as described in claim 1, characterized in that, It also includes tape wrapped around the magnetic core to cover the air gap.

9. The high-frequency, high-power discharge inductor as described in claim 1, characterized in that, It also includes a base, the magnetic core is disposed on one side of the base, and the base is provided with a lead hole for passing through the lead hole so that the first pin and the second pin are located on the side of the base away from the magnetic core.

10. The high-frequency, high-power discharge inductor as described in claim 9, characterized in that, The base also includes a support member, which is located on the side of the base away from the magnetic core.

11. The high-frequency, high-power discharge inductor as described in claim 9, characterized in that, It also includes a fastener that surrounds the base and the magnetic core to secure the magnetic core and the base.

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