CN205566240U - Multi -level filter - Google Patents
Multi -level filter Download PDFInfo
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- CN205566240U CN205566240U CN201620127334.XU CN201620127334U CN205566240U CN 205566240 U CN205566240 U CN 205566240U CN 201620127334 U CN201620127334 U CN 201620127334U CN 205566240 U CN205566240 U CN 205566240U
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Abstract
The utility model provides a multi -level filter, including a common mode inductance, an inductance coils, the 2nd common mode inductance, the 2nd inductance coils, resistance, voltage terminal, first common mode electric capacity, earth connection, second common mode electric capacity, the 3rd inductance coils, fourth inductance coils, differential mode choke, wire and differential mode capacitor. The beneficial effects of the utility model are that: the wave filter can reach multistage filtering in requiring the increasingly high environment more and more harsh with the environment, owing to just increased a common mode inductance, can not occupy very big volume again simultaneously. It can effectual elimination high frequency interference, can eliminate the influence of low frequency again. Adopting two kinds of materials that complement each other, compromising high frequency and low frequency harmonic, the effect is like a plurality of wave filters. The structural connection is compact, and filtering is effectual. One magnetic material adopts the nanocrystalline material among the common mode inductance, and another adopts ferrite material, and coiling common mode inductance's magnetic material is mostly nanocrystalline material or ferrite material.
Description
Technical field
This utility model relates to multiple filter device, is specially a kind of multiple filter, belongs to field of electrical equipment.
Background technology
Along with the development of society, in the application of electric, electronic equipment, electromagnetic wave is ubiquitous, and the most also along with electromagnetic interference, and a kind of method eliminating electromagnetic interference conventional is i.e. to add wave filter in circuit, we often this wave filter be called EMI filtering.Electromagnetic interface filter belongs to low pass filter, and it only allows normal working frequency signal to enter other working regions, and disturb signal have comparatively speaking low frequency and High-frequency Interference point.But due to material and the limitation in space, we always can not take into account the parameter requirements such as electric current, insertion loss and frequency range, so although the wave filter of routine can eliminate certain electromagnetic interference, but along with electronic equipment and the development of technological applications, conventional wave filter can not reach to eliminate the requirement of incident high-frequency range interference.
Utility model content
The purpose of this utility model is that provides a kind of multiple filter device to solve the problems referred to above.
This utility model is achieved through the following technical solutions above-mentioned purpose, this utility model provides a kind of multiple filter, including the first common mode inductance, the first inductance coil, the second common mode inductance, the second inductance coil, resistance, voltage link post, the first common mode capacitance, earth lead, the second common mode capacitance, the 3rd inductance coil, the 4th inductance coil, differential mode inductance, wire and differential mode capacitor；Described voltage link post is electrically connected with wire, and one end of described wire connects the second inductance coil, and described second inductance coil side is provided with the first inductance coil that described wire is electrically connected with；Described first inductance coil is electrically connected with by described wire and the first common mode capacitance, described first common mode capacitance one end is electrically connected with between the second common mode capacitance, and described first common mode capacitance with described second common mode capacitance to be connected by wire by wire earth lead；Described voltage link post and described second common mode capacitance are electrically connected with by described wire and the 3rd inductance coil, and described 3rd inductance coil one end is electrically connected with the 4th inductance coil by described wire；Described 4th inductance coil side is connected by described wire differential mode inductance；Described voltage link post has resistance, described resistance side to be parallel with differential mode capacitor by described conductor in parallel；Described first inductance coil, described second inductance coil, between described 3rd inductance coil and described 4th inductance coil, it is provided with the first common mode inductance and described second common mode inductance, and described first common mode inductance is positioned at the side of described second common mode inductance.
Preferably, the filter element of described first common mode inductance is nanocrystalline.
Preferably, the core of described second common mode inductance filter is ferrite.
Preferably, described resistance is absorption resistance.
The beneficial effects of the utility model are: this use Novel Filter can reach multiple-stage filtering in requiring the more and more higher environment the most harsh with environment, owing to only increasing a common mode inductance, will not occupy again the biggest volume simultaneously.It can effectively eliminate High-frequency Interference, can eliminate again the impact of low frequency.Using two kinds of materials complemented each other, take into account high and low frequency harmonic wave, effect is such as multiple wave filter.Structure connects compact, good wave filtering effect, and service life is long, and power consumption is low.In common mode inductance, magnetic material one uses nanocrystalline material, and another uses Ferrite Material, and the magnetic material of coiling common mode inductance mostly is nanocrystalline material or Ferrite Material.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model；
Fig. 2 is common mode inductance coiling schematic diagram of the present utility model；
In figure: 1, the first common mode inductance；2, the first inductance coil；3, the second common mode inductance；4, the second inductance coil；5, resistance；6, voltage link post；7, the first common mode capacitance；8, earth lead；9, the second common mode capacitance；10, the 3rd inductance coil；11, the 4th inductance coil；12, differential mode inductance；13, wire；14, differential mode capacitor.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
Refer to Fig. 1-2, a kind of multiple filter, including first common mode inductance the 1, first inductance coil the 2, second common mode inductance the 3, second inductance coil 4, resistance 5, voltage link post the 6, first common mode capacitance 7, earth lead the 8, second common mode capacitance the 9, the 3rd inductance coil the 10, the 4th inductance coil 11, differential mode inductance 12, wire 13 and differential mode capacitor 14；Described voltage link post 6 is electrically connected with wire 13, and one end of described wire 13 connects the second inductance coil 4, and described second inductance coil 4 side is provided with the first inductance coil 2 that described wire 13 is electrically connected with；Described first inductance coil 2 is electrically connected with the first common mode capacitance 7 by described wire 13, described first common mode capacitance 7 one end is electrically connected with between the second common mode capacitance 9, and described first common mode capacitance 7 with described second common mode capacitance 9 to be connected by wire 13 by wire 13 earth lead 8；Described voltage link post 6 and described second common mode capacitance 9 are electrically connected with the 3rd inductance coil 10 by described wire 13, and described 3rd inductance coil 10 one end is electrically connected with the 4th inductance coil 11 by described wire 13；Described 4th inductance coil 11 side is connected by described wire 13 differential mode inductance 12；Described voltage link post 6 is parallel with resistance 5 by described wire 13；Described resistance 5 side is parallel with differential mode capacitor 14, described first inductance coil 2, described second inductance coil 4, between described 3rd inductance coil 10 and described 4th inductance coil 11, it is provided with the first common mode inductance 1 and described second common mode inductance 3, and described first common mode inductance 1 is positioned at the side of described second common mode inductance 3.
As a kind of technical optimization scheme of the present utility model, the filter element of described first common mode inductance 1 is nanocrystalline；Filtering common mode disturbs.
As a kind of technical optimization scheme of the present utility model, the core of described second common mode inductance 3 filter is ferrite；Filter differential mode interference.
As a kind of technical optimization scheme of the present utility model, described resistance 5 is absorption resistance；Absorb unnecessary voltage.
In use, the technical scheme of the design is to use two kinds of magnetic materials complemented each other to this utility model: nanocrystalline toroidal core and ferrite toroidal magnetic core.Nanocrystalline magnet core has high initial permeability, but it is the most severe to decay after 10KHZ, high saturation magnetic induction, the characteristics such as good heat stability, the high and low frequency characteristic of FERRITE CORE is the most stable, although saturation magnetic induction is less, but as this characteristic of common mode inductance without impact in wave filter.
Shown in accompanying drawing 1, this figure is the schematic diagram of Conventional filters, comprises common mode capacitance, common mode inductance, differential mode inductance, discharge resistance, differential mode capacitor.Common mode inductance filtering common mode disturbs, and differential mode inductance filters differential mode interference.According to disturbed condition in circuit, the magnetic material of coiling common mode inductance mostly is nanocrystalline material or Ferrite Material.
Shown in accompanying drawing 2, this figure is compared with Conventional filters, owing to only increasing a common mode inductance, so volume will not substantially increase too much, and acts on and can reach multiple-stage filtering.In common mode inductance, magnetic material one uses nanocrystalline material, and another uses Ferrite Material, and both are complementary to one another, and can filter high-frequency harmonic and low-frequency harmonics simultaneously.
It is obvious to a person skilled in the art that this utility model is not limited to the details of above-mentioned one exemplary embodiment, and in the case of without departing substantially from spirit or essential attributes of the present utility model, it is possible to realize this utility model in other specific forms.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims rather than described above, it is intended that all changes fallen in the implication of equivalency and scope of claim included in this utility model.Should not be considered as limiting involved claim by any reference in claim.
In addition, it is to be understood that, although this specification is been described by according to embodiment, but the most each embodiment only comprises an independent technical scheme, this narrating mode of description is only for clarity sake, description should can also be formed, through appropriately combined, other embodiments that it will be appreciated by those skilled in the art that as an entirety, the technical scheme in each embodiment by those skilled in the art.
Claims (4)
1. a multiple filter, including the first common mode inductance (1), the first inductance coil (2), the second common mode inductance (3), the second inductance coil (4), resistance (5), voltage link post (6), the first common mode capacitance (7), earth lead (8), the second common mode capacitance (9), the 3rd inductance coil (10), the 4th inductance coil (11), differential mode inductance (12), wire (13) and differential mode capacitor (14)；It is characterized in that: described voltage link post (6) is electrically connected with wire (13), one end of described wire (13) connects the second inductance coil (4), and described second inductance coil (4) side is provided with the first inductance coil (2) that described wire (13) is electrically connected with；Described first inductance coil (2) is electrically connected with the first common mode capacitance (7) by described wire (13), described first common mode capacitance (7) one end is electrically connected with between the second common mode capacitance (9), and described first common mode capacitance (7) with described second common mode capacitance (9) to be connected by wire (13) by wire (13) earth lead (8)；Described voltage link post (6) and described second common mode capacitance (9) are electrically connected with the 3rd inductance coil (10) by described wire (13), and described 3rd inductance coil (10) one end is electrically connected with the 4th inductance coil (11) by described wire (13)；Described 4th inductance coil (11) side is connected by described wire (13) differential mode inductance (12)；Described voltage link post (6) is parallel with resistance (5) by described wire (13)；Described resistance (5) side is parallel with differential mode capacitor (14), described first inductance coil (2), described second inductance coil (4), between described 3rd inductance coil (10) and described 4th inductance coil (11), it is provided with the first common mode inductance (1) and described second common mode inductance (3), and described first common mode inductance (1) is positioned at the side of described second common mode inductance (3).
A kind of multiple filter the most according to claim 1, it is characterised in that: the filter element of described first common mode inductance (1) is nanocrystalline.
A kind of multiple filter the most according to claim 1 and 2, it is characterised in that: the core that described second common mode inductance (3) is filtered is ferrite.
A kind of multiple filter the most according to claim 3, it is characterised in that: described resistance (5) is absorption resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620127334.XU CN205566240U (en) | 2016-02-18 | 2016-02-18 | Multi -level filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620127334.XU CN205566240U (en) | 2016-02-18 | 2016-02-18 | Multi -level filter |
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| CN205566240U true CN205566240U (en) | 2016-09-07 |
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| CN201620127334.XU Active CN205566240U (en) | 2016-02-18 | 2016-02-18 | Multi -level filter |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107156943A (en) * | 2017-05-16 | 2017-09-15 | 广东乐源数字技术有限公司 | The intelligent clothing and its system of a kind of motion monitoring |
| CN107212480A (en) * | 2017-05-16 | 2017-09-29 | 广东乐源数字技术有限公司 | A kind of intelligent clothing and exercise guidance system for monitoring motion respiratory rate |
| CN110429919A (en) * | 2019-07-24 | 2019-11-08 | 臻驱科技（上海）有限公司 | A kind of multistage filter structure and multistage filter circuit |
| CN114464415A (en) * | 2022-02-23 | 2022-05-10 | 北京华芯微半导体有限公司 | Filter with sampling function and power supply filter circuit |
-
2016
- 2016-02-18 CN CN201620127334.XU patent/CN205566240U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107156943A (en) * | 2017-05-16 | 2017-09-15 | 广东乐源数字技术有限公司 | The intelligent clothing and its system of a kind of motion monitoring |
| CN107212480A (en) * | 2017-05-16 | 2017-09-29 | 广东乐源数字技术有限公司 | A kind of intelligent clothing and exercise guidance system for monitoring motion respiratory rate |
| CN110429919A (en) * | 2019-07-24 | 2019-11-08 | 臻驱科技（上海）有限公司 | A kind of multistage filter structure and multistage filter circuit |
| CN110429919B (en) * | 2019-07-24 | 2024-01-12 | 臻驱科技（上海）有限公司 | Multi-order filter structure and multi-order filter circuit |
| CN114464415A (en) * | 2022-02-23 | 2022-05-10 | 北京华芯微半导体有限公司 | Filter with sampling function and power supply filter circuit |
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