CN108336898A - Brick filter module and power supply module - Google Patents
Brick filter module and power supply module Download PDFInfo
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- CN108336898A CN108336898A CN201810325268.0A CN201810325268A CN108336898A CN 108336898 A CN108336898 A CN 108336898A CN 201810325268 A CN201810325268 A CN 201810325268A CN 108336898 A CN108336898 A CN 108336898A
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- filter module
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- 239000011449 brick Substances 0.000 title claims abstract description 74
- 238000001914 filtration Methods 0.000 claims abstract description 86
- 239000003990 capacitor Substances 0.000 claims description 23
- 239000012528 membrane Substances 0.000 claims description 3
- 229920000728 polyester Polymers 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 11
- 239000000463 material Substances 0.000 abstract description 3
- 230000007123 defense Effects 0.000 abstract description 2
- 238000000280 densification Methods 0.000 abstract description 2
- 230000008092 positive effect Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 5
- 230000005670 electromagnetic radiation Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000013139 quantization Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/12—Arrangements for reducing harmonics from ac input or output
- H02M1/126—Arrangements for reducing harmonics from ac input or output using passive filters
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/44—Circuits or arrangements for compensating for electromagnetic interference in converters or inverters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M1/00—Details of apparatus for conversion
- H02M1/12—Arrangements for reducing harmonics from ac input or output
- H02M1/123—Suppression of common mode voltage or current
Abstract
The present invention provides a kind of brick filter module and power supply modules, are related to power technique fields.Brick filter module includes shell and internal circuit, and internal circuit includes the first differential mode filter module, the first common mode filtering module, the second common mode filtering module and resonator, filter module；The output end of first differential mode filter module and power module connects, for filtering out DM EMI signal；First common mode filtering module and the second common mode filtering module are for reducing common mode noise signal；Resonator filter circuit can effective filter out High-frequency Interference for reducing electromagnetic interference.Improve reliability, simplify structure compresses volume, keep the height of filter module consistent with brick power supply, it designs and produces convenient for equipment same level, both space cost and material cost are saved, also as the characteristics of its miniaturization, high power has expanded the suitable environment of equipment, there is positive effect to miniaturization, the densification of national defense industry equipment, civil equipment etc..
Description
Technical field
The present invention relates to power technique fields, in particular to a kind of brick filter module and power supply module.
Background technology
Standard brick power module, such as the full brick power module of standard, standard bat power module, have high efficiency,
High power density, it is small the features such as, largely used in civilian, industrial and military domain, and formd in industry
Standardization.
After power module, because of volumetric constraint, it is difficult to realize that perfect electromagnetic compatibility measure, regular tap power supply are universal
Existing switch interference, electromagnetic radiation still remain even more serious, it is necessary to install power supply additional in power module prime or rear class
Filter etc. could meet integral device normal work and meet electromagnetic compatibility characteristic requirements.
Power-supply filter currently on the market completely mating cannot be suitable for power module, such as standard brick power module
Height be 12.7mm, and the height of general power-supply filter is 16mm~120mm, so as to cause power-supply filter and power supply mould
The height of block is inconsistent, occupies larger space, is unfavorable for improving the space availability ratio of integral device.
Invention content
In view of this, the embodiment of the present invention is designed to provide a kind of brick shape filter module, to simplify filter module knot
Structure, compression filtering module volume make it be adapted to the volume of brick shape power supply, improve space availability ratio.
An embodiment of the present invention provides a kind of brick filter module, the brick filter module includes shell and internal electricity
Road, the internal circuit are set in the shell, and the internal circuit includes the first differential mode filter module, the first common mode filtering
Module, the second common mode filtering module and resonator, filter module；The first differential mode filter module, the first common mode filtering module,
Second common mode filtering module and resonator, filter module are sequentially connected electrically, the first differential mode filter module and power module it is defeated
Outlet connects, for filtering out DM EMI signal；The first common mode filtering module and the second common mode filtering module and the
One differential mode filter module is electrically connected, for reducing common mode noise signal；The resonator filter circuit is for reducing power module
Electromagnetic interference.
Further, the first differential mode filter module include the first differential mode capacitor and the second differential mode capacitor, described first
The both ends of differential mode capacitor and second differential mode capacitor are connected across the first output end and second output terminal of power module.
Further, the first common mode filtering module is connected to the first differential mode filter module and the second common mode filtering
Between module, the first common mode filtering module includes the first common mode capacitance and the second common mode capacitance, first common mode capacitance
First end be electrically connected with the first input end of power module, the second end of first common mode capacitance ground connection, described second is total
The first end of mould capacitance is electrically connected with the second input terminal of power module, the second end ground connection of second common mode capacitance, described
First common mode capacitance and second common mode capacitance are used for short-circuit common-mode noise.
Further, the second common mode filtering module includes common mode choke, the input terminal of the common mode choke with
The output end of first common mode filtering module is electrically connected, and the output end of the common mode choke is electrically connected with resonator filter circuit,
The common mode choke is used for attenuation common-mode interference signal.
Further, the resonator filter circuit includes the first capacitance, the second capacitance, first resistor, the first inductance and the
Two inductance, the second common mode filtering module include the first output end and second output terminal, the first end of first capacitance with
First output end of the second common mode filtering module is electrically connected, and the of the second end of first capacitance and the first resistor
One end is electrically connected, and the second end of the first resistor is electrically connected with the second output terminal of the second common mode filtering module, described
The first end of first inductance is electrically connected with the first output end of the second common mode filtering module, the second end of first inductance
It is electrically connected with the first end of second capacitance, the second end of second capacitance and the first end of second inductance are electrically connected
It connects, the second end of second inductance is electrically connected with the second output terminal of the second common mode filtering module.
Further, first differential mode capacitor and second differential mode capacitor are polyester membrane capacitance.
Further, multiple stitch are provided on the shell of the brick filter module, the input terminal of internal circuit and defeated
Outlet is electrically connected with corresponding stitch respectively.
Further, the height of the shell of the brick filter module is 10.2cm, 12.0cm, 12.7cm and 13.0mm
In one kind.
A kind of power supply module, which is characterized in that the power supply module includes standard brick power module and brick filtering
Module, the brick filter module include shell and internal circuit, and the internal circuit is set in the shell, the inside
Circuit includes the first differential mode filter module, the first common mode filtering module, the second common mode filtering module and resonator, filter module；Institute
The first differential mode filter module, the first common mode filtering module, the second common mode filtering module and resonator, filter module is stated to be electrically connected successively
It connects, the output end connection of the first differential mode filter module and power module, for filtering out DM EMI signal；Described first is total
Mould filter module and the second common mode filtering module are electrically connected with the first differential mode filter module, are believed for reducing common-mode noise
Number；The resonator filter circuit for reducing power module electromagnetic interference.The output end of the brick power module with it is described
The input terminal of brick filter module is electrically connected.
Compared with the prior art, the invention has the advantages that：
The present invention provides a kind of brick filter module and power supply module, brick filter module includes shell and internal electricity
Road, the internal circuit are set in the shell, and the internal circuit includes the first differential mode filter module, the first common mode filtering
Module, the second common mode filtering module and resonator, filter module；The first differential mode filter module, the first common mode filtering module,
Second common mode filtering module and resonator, filter module are sequentially connected electrically, the first differential mode filter module and power module it is defeated
Outlet connects, for filtering out DM EMI signal；The first common mode filtering module and the second common mode filtering module and the
One differential mode filter module is electrically connected, for reducing common mode noise signal；The resonator filter circuit is for reducing power module
Electromagnetic interference can effective filter out the High-frequency Interference of brick shape power module, simplify the circuit structure of filter module, compression filter
The volume of wave module allows the height of brick filter module to reach the degree consistent with brick power supply, convenient for the identical of equipment
The design and production of plane, had both saved device space cost and material cost, also as the characteristics of its miniaturization, high power
The suitable environment of equipment is expanded.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment cited below particularly, and coordinate
Appended attached drawing, is described in detail below.
Description of the drawings
It, below will be to required use in embodiment in order to illustrate more clearly of the technical solution of embodiment of the present invention
Attached drawing be briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not to be seen as
It is the restriction to range, it for those of ordinary skill in the art, without creative efforts, can be with root
Other relevant attached drawings are obtained according to these attached drawings.
Fig. 1 shows a kind of schematic diagram of brick filter module provided by the present invention.
Fig. 2 shows the circuit connection diagrams of internal circuit.
Fig. 3 shows the schematic diagram of brick power supply module provided in this embodiment.
Fig. 4 shows the schematic diagram of existing power supply module.
Icon：10- brick filter modules；101- shells；100- internal circuits；P1- first input ends；P2- second is inputted
End；The first output ends of P3-；The 4th output ends of P4-；110- the first differential mode filter modules；The first differential mode capacitors of CX1-；CX2-
Two differential mode capacitors；CX3- third differential mode capacitors；130- the first common mode filtering modules；The first common mode capacitances of CY1-；CY2- second is total
Mould capacitance；150- the second common mode filtering modules；L1- common mode chokes；170- resonator, filter modules；The first capacitances of C1-；C2-
Two capacitances；R1- first resistors；The first inductance of L2-；The second inductance of L3-；20- brick power supply modules；200- standard brick power supplys
Module.
Specific implementation mode
Below in conjunction with attached drawing in the embodiment of the present invention, technical solution in the embodiment of the present invention carries out clear, complete
Ground describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Usually exist
The component of the embodiment of the present invention described and illustrated in attached drawing can be arranged and be designed with a variety of different configurations herein.Cause
This, the detailed description of the embodiment of the present invention to providing in the accompanying drawings is not intended to limit claimed invention below
Range, but it is merely representative of the selected embodiment of the present invention.Based on the embodiment of the present invention, those skilled in the art are not doing
The every other embodiment obtained under the premise of going out creative work, shall fall within the protection scope of the present invention.
It should be noted that：Similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined, then it further need not be defined and explained in subsequent attached drawing in a attached drawing.
In the description of the present invention, it should be noted that the instructions such as term "upper", "lower", "left", "right", "inner", "outside"
Orientation or positional relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when usually put
Orientation or positional relationship, be merely for convenience of description of the present invention and simplification of the description, do not indicate or imply the indicated device
Or element must have a particular orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, can also be electrical connection；It can be directly connected, it can also be indirect by intermediary
It is connected, can is the connection inside two elements.
In the description of the present invention, it is also necessary to explanation, herein, such as first and second or the like relationship art
Language is only used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying this
There are any actual relationship or orders between a little entities or operation.The terms such as term "horizontal", "vertical", " pendency "
It is not offered as requiring component abswolute level or pendency, but can be slightly tilted.If "horizontal" refers to only that its direction is opposite " perpendicular
It is more horizontal for directly ", it is not to indicate that the structure is had to fully horizontally, but can be slightly tilted.Term " comprising ",
"comprising" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process including a series of elements,
Method, article or equipment include not only those elements, but also include other elements that are not explicitly listed, or are also wrapped
It includes as elements inherent to such a process, method, article, or device.In the absence of more restrictions, by sentence " including
One ... " limit element, it is not excluded that there is also another in the process, method, article or apparatus that includes the element
Outer identical element.For the ordinary skill in the art, it can understand above-mentioned term in the present invention with concrete condition
Concrete meaning.
Below in conjunction with the accompanying drawings, it elaborates to some embodiments of the present invention.In the absence of conflict, following
Feature in embodiment and embodiment can be combined with each other.
First embodiment
Referring to Fig. 1, present embodiments providing a kind of brick filter module 10.Brick filter module 10 is used for standard brick
Type power module 200 is filtered, and filters out the interference signals such as switch interference, the electromagnetic radiation of energization source module generally existing, together
When reduce own vol, fit standard brick power module 200 saves the device space, improves space availability ratio.
Brick filter module 10 includes shell 101 and internal circuit 100.Internal circuit 100 is packaged in inside shell 101.
In this present embodiment, the shape size of the shell 101 of brick filter module 10 and standard brick power module 200
Geomery matches.It is i.e. identical as the length of standard brick power module 200.For example, length can be for 116.8mm,
61.0 mm, 60.3mm, 57.9mm, 25.4mm or other sizes, width can be 61.0mm, 57.9mm, 36.8mm, 25.4mm,
Height can be one kind in 10.2mm, 12.0mm, 12.7mm, 13.0mm.
Referring to Fig. 2, internal circuit 100 includes input terminal and output end, in this present embodiment, including first input end
P1, the second input terminal P2 and the first output end P3, the 4th output end P4.It is provided on the shell 101 of brick filter module 10
Multiple stitch, the first input end P1 of internal circuit 100, the second input terminal P2 and the first output end P3, the 4th output end P4
It is electrically connected respectively with corresponding stitch, using stitch outlet method identical with standard brick power module 200, convenient for complete machine batch
The production of quantization avoids the drawbacks of general power-supply filter is using manual wiring, improves the reliability of product.
Internal circuit 100 is set in shell 101, for example, internal circuit 100 is set on pcb board, pcb board is set
It is placed in shell 101.In this present embodiment, on the basis of general power filter circuit, for the switching tube of power module
Interference, rectifying tube conducting interference, transformer, the circuits such as inductor electromagnetic interference etc., according to its switching frequency and interference magnitude,
Filter circuit is designed, with interference and the electromagnetic radiation etc. for reducing power supply.
In this present embodiment, the first input end P1 of internal circuit 100 is electrically connected with the first output end of power module, interior
Second input terminal P2 of portion's circuit 100 is electrically connected with the second output terminal of power module.
Internal circuit 100 includes the first differential mode filter module 110, the first common mode filtering module 130, the second common mode filtering mould
Block 150 and resonator, filter module 170；First differential mode filter module 110, the first common mode filtering module 130, the second common mode filtering
Module 150 and resonator, filter module 170 are sequentially connected electrically.
First differential mode filter module 110 is connect with the output end of power module, for filtering out DM EMI signal；First is total
Mould filter module 130 and the second common mode filtering module 150 are electrically connected with the first differential mode filter module 110, are made an uproar for reducing common mode
Acoustical signal；Resonator filter circuit for reducing power module electromagnetic interference.
First differential mode filter module 110 includes the first differential mode capacitor CX1, the second differential mode capacitor CX2 and third differential mode electricity
Hold CX3, the both ends of the first differential mode capacitor CX1, the second differential mode capacitor CX2 and third differential mode capacitor CX3 are connected across power supply mould
The first output end and second output terminal of block.
Differential mode capacitor is called X capacitances, and X capacitances are used in power filter, play the role of power filter, be connected to the fire of power supply
Between line and zero curve, DM EMI is played a filtering role.In this present embodiment, optionally, in this present embodiment, the first differential mode electricity
The both ends for holding CX1 are connected across the first input end P1 and the second input terminal P2 of internal circuit 100.
The both ends of second differential mode capacitor CX2 are connected across the both ends of the output end of the second common mode filtering module 150, third differential mode
The both ends of capacitance CX3 are connected across the first output end P3 and second output terminal P4 of internal circuit 100 respectively.
Optionally, in this present embodiment, the first differential mode capacitor CX1, the second differential mode capacitor CX2 and third differential mode capacitor CX3
Select the polyester membrane capacitance that resistance to ripple current is bigger.
First common mode filtering module 130 be connected to the first differential mode filter module 110 and the second common mode filtering module 150 it
Between, the first common mode filtering module 130 includes the first common mode capacitance CY1 and the second common mode capacitance CY2.
Common mode capacitance, which is called, does Y capacitance, is the capacitance for being connected across (L-E, N-E) between two line of power line and ground respectively, and one
As be to occur in pairs.
In this present embodiment, the first end of the first common mode capacitance CY1 is electrically connected with the first input end of power module, and first
The second end of common mode capacitance CY1 is grounded, and the first end of the second common mode capacitance CY2 is electrically connected with the second input terminal of power module,
The second end of second common mode capacitance CY2 is grounded, in this present embodiment, the first common mode capacitance CY1 and the second common mode capacitance CY2 at
The both ends of power module outlet are grounded respectively over the ground, for short-circuit common-mode noise.
Second common mode filtering module 150 is used for attenuation common-mode interference signal, in this present embodiment, the second common mode filtering module
150 include a common mode choke L1, and the input terminal of common mode choke L1 and the output end of the first common mode filtering module 130 are electrically connected
It connects, the output end of common mode choke L1 is electrically connected with resonator, filter module 170.Common mode choke L1 be two strands it is equivalent and by
The equidirectional coil composition being wound on a magnetic core, when load current is by common mode choke L1, is connected on main track
The magnetic line of force caused by coil and magnetic line of force direction caused by negative wire coil is connected on the contrary, they are mutually supported in magnetic core
Disappear.Therefore, even if in the case of large load current, magnetic core will not be saturated.And for common-mode interference current, two coil productions
Raw magnetic field is equidirectional, will present larger inductance, to play the role of attenuation common-mode interference signal.
Resonator filter circuit is electrically connected with the second common mode filtering module 150, optionally, in this present embodiment, the second common mode
Filter module 150 include the first output end and second output terminal, resonator filter circuit include the first capacitance C1, the second capacitance C2,
First resistor R1, the first inductance L2 and the second inductance L3.
The first end of first capacitance C1 is electrically connected with the first output end of the second common mode filtering module 150, the first capacitance C1
Second end be electrically connected with the first end of first resistor R1, the second end of first resistor R1 and the second common mode filtering module 150
Second output terminal is electrically connected, and the first end of the first inductance L2 is electrically connected with the first output end of the second common mode filtering module 150,
The second end of first inductance L2 is electrically connected with the first end of the second capacitance C2, and the second end of the second capacitance C2 is with the second inductance L3's
First end is electrically connected, and the second end of the second inductance L3 is electrically connected with the second output terminal of the second common mode filtering module 150.
The design of the frequency of resonator filter circuit is set according to the switching frequency and harmonic frequency of interference source, so as to
To absorb switching harmonics interference and electromagnetic interference well, make integral device work normally and meet electromagnetic compatibility standard to want
It asks, has well solved the High-frequency Interference filtering problem of standard brick power module 200.
Second embodiment
The present embodiment provides a kind of power supply module, power supply module includes standard brick power module 200 and brick filtering
The output end of module 10, standard brick power module 200 is electrically connected with the input terminal of brick filter module 10, for filtering out standard
Interference signal of brick power supply 200, such as High-frequency Interference, ELECTROMAGNETIC RADIATION SIGNATURE etc..
It should be noted that brick filter module 10 provided in this embodiment, structure composition and basic principle and first
The brick filter module 10 that embodiment provides is roughly the same, no longer elaborates to this to briefly describe the present embodiment, this reality
It applies example and does not introduce close place and please refer to related content in first embodiment.
Fig. 3 and Fig. 4 are please referred to, Fig. 3 shows that the structural schematic diagram of power supply module provided in this embodiment, Fig. 4 are shown
The structural schematic diagram of existing power filtering module and standard brick power module 200.Existing power filtering module often body
Product is larger, length, width, each producer of height all disunities；Be limited to internal components height and production technology, especially its
Height is higher so that and most of complete set of equipments have to increase device height, waste big quantity space, not only increase cost, but also
It can be limited because of huge use of equipment.
In this present embodiment, the size phase of the length, width and height size of brick filter module 10 and standard brick power module 200
Together, it is convenient for same level to install, avoids height of the height than standard brick power module 200 of existing power filtering module
Space waste caused by height, the designs such as heat dissipation, mounting process for facilitating complete machine into one.
In conclusion the present invention provides a kind of brick filter module and power supply module, brick filter module includes shell
And internal circuit, the internal circuit are set in the shell, the internal circuit includes the first differential mode filter module, first
Common mode filtering module, the second common mode filtering module and resonator, filter module；The first differential mode filter module, the filter of the first common mode
Wave module, the second common mode filtering module and resonator, filter module are sequentially connected electrically, the first differential mode filter module and power supply
The output end of module connects, for filtering out DM EMI signal；The first common mode filtering module and second common mode filtering
Module is electrically connected with the first differential mode filter module, for reducing common mode noise signal；The resonator filter circuit is for reducing electricity
The electromagnetic interference of source module can effective filter out the High-frequency Interference of brick shape power module.Using with standard brick power module
Identical stitch outlet method is convenient for the production of complete machine mass, avoids disadvantage of the general power-supply filter using manual wiring
End, improves the reliability of product, meanwhile, brick filter module provided by the invention simplifies the circuit knot of filter module
Structure, the volume of compression filtering module allow the height of brick filter module to reach the degree consistent with brick power supply, convenient for setting
The design and production of standby same level, had both saved device space cost and material cost, also as its miniaturization, high power
The characteristics of change, has expanded the suitable environment of equipment, is conducive to the miniaturization of complete set of equipments, is set to national defense industry equipment, civilian production
The standby miniaturization waited, densification have positive effect.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, any made by repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (9)
1. a kind of brick filter module, which is characterized in that the brick filter module includes shell and internal circuit, the inside
Circuit is set in the shell, and the internal circuit is total to including the first differential mode filter module, the first common mode filtering module, second
Mould filter module and resonator, filter module；The first differential mode filter module, the first common mode filtering module, the second common mode filtering
Module and resonator, filter module are sequentially connected electrically, and the output end connection of the first differential mode filter module and power module is used
In filtering out DM EMI signal；The first common mode filtering module and the second common mode filtering module filter mould with the first differential mode
Block is electrically connected, for reducing common mode noise signal；The resonator filter circuit for reducing power module electromagnetic interference.
2. brick filter module as described in claim 1, which is characterized in that the first differential mode filter module includes first poor
The both ends of mould capacitance and the second differential mode capacitor, first differential mode capacitor and second differential mode capacitor are connected across power module
The first output end and second output terminal.
3. brick filter module as described in claim 1, which is characterized in that the first common mode filtering module is connected to described
Between first differential mode filter module and the second common mode filtering module, the first common mode filtering module include the first common mode capacitance and
The first end of second common mode capacitance, first common mode capacitance is electrically connected with the first input end of power module, and described first is total
The second end of mould capacitance is grounded, and the first end of second common mode capacitance is electrically connected with the second input terminal of power module, described
The second end of second common mode capacitance is grounded, and first common mode capacitance and second common mode capacitance are used for short-circuit common-mode noise.
4. brick filter module as described in claim 1, which is characterized in that the second common mode filtering module includes that common mode is gripped
Stream circle, the input terminal of the common mode choke are electrically connected with the output end of the first common mode filtering module, the common mode choke
Output end be electrically connected with resonator filter circuit, the common mode choke be used for attenuation common-mode interference signal.
5. brick filter module as described in claim 1, which is characterized in that the resonator filter circuit include the first capacitance,
Second capacitance, first resistor, the first inductance and the second inductance, the second common mode filtering module include the first output end and second
Output end, the first end of first capacitance are electrically connected with the first output end of the second common mode filtering module, and described first
The second end of capacitance is electrically connected with the first end of the first resistor, and the second end of the first resistor is filtered with second common mode
The second output terminal of wave module is electrically connected, the first output of the first end of first inductance and the second common mode filtering module
End electrical connection, the second end of first inductance are electrically connected with the first end of second capacitance, and the second of second capacitance
End is electrically connected with the first end of second inductance, and the of the second end of second inductance and the second common mode filtering module
Two output ends are electrically connected.
6. brick filter module as claimed in claim 2, which is characterized in that first differential mode capacitor and second differential mode
Capacitance is polyester membrane capacitance.
7. brick filter module as described in claim 1, which is characterized in that be provided on the shell of the brick filter module
Multiple stitch, the input terminal and output end of internal circuit are electrically connected with corresponding stitch respectively.
8. brick filter module as described in claim 1, which is characterized in that the height of the shell of the brick filter module is
One kind in 10.2cm, 12.0cm, 12.7cm and 13.0mm.
9. a kind of power supply module, which is characterized in that the power supply module includes standard brick power module and such as claim 1
Brick filter module described in~8 any one, the output end of the brick power module are defeated with the brick filter module
Enter end electrical connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810325268.0A CN108336898A (en) | 2018-04-11 | 2018-04-11 | Brick filter module and power supply module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810325268.0A CN108336898A (en) | 2018-04-11 | 2018-04-11 | Brick filter module and power supply module |
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| CN108336898A true CN108336898A (en) | 2018-07-27 |
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|---|---|---|---|
| CN201810325268.0A Pending CN108336898A (en) | 2018-04-11 | 2018-04-11 | Brick filter module and power supply module |
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| CN (1) | CN108336898A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN111027268A (en) * | 2019-10-21 | 2020-04-17 | 珠海格力电器股份有限公司 | Circuit for simulating common mode choke coil |
| CN111027268B (en) * | 2019-10-21 | 2022-04-15 | 珠海格力电器股份有限公司 | Circuit for simulating common mode choke coil |
| CN113037333A (en) * | 2021-03-31 | 2021-06-25 | 成都立鑫新技术科技有限公司 | Method for preventing leakage of secret by utilizing power line carrier communication |
| CN113037333B (en) * | 2021-03-31 | 2022-09-16 | 成都立鑫新技术科技有限公司 | Method for preventing secret divulgence by utilizing power line carrier communication |
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