CN206452309U - A kind of supply convertor - Google Patents
A kind of supply convertor Download PDFInfo
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- CN206452309U CN206452309U CN201621489544.XU CN201621489544U CN206452309U CN 206452309 U CN206452309 U CN 206452309U CN 201621489544 U CN201621489544 U CN 201621489544U CN 206452309 U CN206452309 U CN 206452309U
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Abstract
The utility model discloses a kind of supply convertor, including converter input, converter output terminal, controller, primary and secondary side, the primary side includes filter capacitor between the first converter, the second converter, input filter and level, the secondary includes output filter and the second converter, converter input connects the input of input filter, and the input of the first converter connects the output end of input filter.The utility model supply convertor uses the power device of regular size, and high power density AC DC converters are realized by rational circuit design and layout designs.
Description
Technical field
The utility model is related to field of power supplies, specifically a kind of supply convertor.
Background technology
In order to obtain bigger power conversion ability in limited space, high power density is wanted in commercial Application
Seek more and more higher.For example, the AC energy of power network to be converted to the AC-DC converter for meeting desired direct current energy, its power
Density is more and more more than 1W/cm^3.While high power density brings the advantages such as small volume, also select to design to device,
Radiating, it is anti-interference in terms of bring many challenges.
In order to improve power density, it is necessary to make full use of each space.Current supply convertor internal components are mainly welded
On PCB, if each element height on PCB is inconsistent, then the overhead of highly relatively low device may be wasted.Current power
In the larger device of converter internal volume, power tube, electric capacity, all each own certain standard size of magnetic element, Er Qiexu
The different device of design is selected according to factors such as power.Particularly magnetic element, due to the power of high power density converter
It is larger, it is meant that the volume of magnetic element is also larger, to how making full use of space to bring problem.
Certain loss is had in power conversion, these losses can become heat, and overheating failure is that supply convertor is main
One of failure cause, how to radiate is one of problem of supply convertor design.And when the timing of conversion efficiency one, improve power
Density means that the heat of unit volume is more, and the requirement to heat dissipation design is also just higher.
Present supply convertor majority uses high-frequency switch circuit, and high-frequency switch circuit can be produced during switch motion
Very strong interference is given birth to, being placed partially away from on-off circuit for being easily disturbed is a widespread practice.But it is close in high power
In degree, it is difficult to accomplish remote to be limited by space.
Utility model content
The utility model provides a kind of supply convertor, solves supply convertor in the prior art, particularly AC-DC conversion
It is high to electronic device volume requirement that device is brought in high power density, and radiating is difficult, and big technical problem is disturbed in space.
To achieve the above object, the utility model provides following technical scheme：
A kind of supply convertor, including converter input, converter output terminal, controller, primary and secondary side, the original
Side includes filter capacitor between the first converter, the second converter, input filter and level, the secondary include output filter and
Second converter, converter input connects the input of input filter, the input connection input filter of the first converter
Filtered between filter capacitor between the output end of device, the output end connection level of the first transformer, the input connection level of the second converter
Electric capacity, the output end of the second converter connects the input of output filter, the output end connection power conversion of output filter
The output end of device；Second converter is an isolated converter, including PWM units, isolating transformer unit and rectification list
Member, the output of PWM units is connected to the input of isolating transformer unit, and the output of isolating transformer unit is connected to rectification list
Member；Described controller includes the first control unit, the second control unit and isolation communication unit, the first control unit and primary side
It is connected, the second control unit is connected with secondary, is connected between two units by isolating communication unit.
It is used as preferred scheme of the present utility model：The isolated converter is made up of at least two isolating transformers, and PWM is mono-
Member one output termination the first isolating transformer first input end, PWM units another output termination last every
From the second input of transformer, the second input of the first isolating transformer terminates the first input end of the second isolating transformer,
The rest may be inferred, and the first output end of all isolating transformers is connected to an input of rectification unit, all isolation transformations simultaneously
Second output end of device is connected to another input of rectification unit simultaneously.
It is used as preferred scheme of the present utility model：The isolating transformer unit is made up of at least two isolating transformers,
The first input end of one output the first isolating transformer of termination of PWM units, another output of PWM units terminates last
Second input of individual isolating transformer, the first input of second input the second isolating transformer of termination of the first isolating transformer
End, the rest may be inferred, and the first output end of all isolating transformers is connected to an input of rectification unit simultaneously, and all isolation become
Second output end of depressor is connected to another input of rectification unit simultaneously, and the rest may be inferred.
It is used as preferred scheme of the present utility model：The isolating transformer includes magnetic core and winding, and the winding surrounds institute
One or more magnetic pole of magnetic core is stated, the central axis direction of the winding with the wind place by road.
It is used as preferred scheme of the present utility model：The isolation communicating circuit includes one or more digital communication unit
With one or more analog communication unit.
It is used as preferred scheme of the present utility model：Filter capacitor is made up of two groups of electric capacity between the level, and one of which is close
First converter is placed, and another group of PWM unit close to the second converter is placed.
It is used as preferred scheme of the present utility model：The output filter includes one group or multigroup capacitor cell, each
Capacitor cell includes two electric capacity and three connecting lines, and wherein one end of electric capacity one is connected with the anode of wave filter, electric capacity one
Negative terminal is connected with one end of connecting line 1, and the other end of connecting line 1 is connected with the negative terminal of wave filter, one end of electric capacity two and filtering
The negative terminal of device is connected, and the other end of electric capacity two is connected with one end of connecting line 2, the other end of connecting line 2 and the anode of wave filter
It is connected, one end of connecting line 3 is connected to the place that electric capacity one is connected with connecting line 1, and the other end of connecting line 3 is connected to electric capacity two
The place being connected with connecting line 2.
Compared with prior art, the beneficial effects of the utility model are：The utility model supply convertor uses conventional rule
The power device of lattice, high power density AC-DC converter is realized by rational circuit design and layout designs.
Brief description of the drawings
Fig. 1 is a kind of electrical block diagram of supply convertor of the utility model embodiment one；
Fig. 2 for the utility model embodiment two a kind of supply convertor in isolating transformer unit a kind of circuit structure
Schematic diagram；
Fig. 3 for the utility model embodiment two a kind of supply convertor in isolating transformer unit another circuit knot
Structure schematic diagram；
Fig. 4 for the utility model embodiment three a kind of supply convertor in isolating transformer unit a kind of circuit structure
Schematic diagram；
Fig. 5 for the utility model embodiment three a kind of supply convertor in isolating transformer unit another circuit knot
Structure schematic diagram；
Fig. 6 is filter capacitor and converter switches unit between a kind of supply convertor middle rank of the utility model embodiment six
Position view.
Fig. 7 for the utility model embodiment seven a kind of supply convertor in output filter capacitor group schematic diagram.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belongs to the scope of the utility model protection.
Refer to Fig. 1-7, a kind of supply convertor, including converter input, converter output terminal, controller, primary side
And secondary, the primary side includes filter capacitor, the secondary bag between the first converter, the second converter, input filter and level
Output filter and the second converter are included, converter input connects the input of input filter, the input of the first converter
Filter capacitor, the input of the second converter between the output end of end connection input filter, the output end connection level of the first transformer
Filter capacitor between end connection level, the output end of the second converter connects the input of output filter, the output of output filter
The output end of end connection supply convertor；Second converter is an isolated converter, including PWM units, isolation transformation
Device unit and rectification unit, the output of PWM units are connected to the input of isolating transformer unit, isolating transformer unit it is defeated
Go out to be connected to rectification unit；Described controller includes the first control unit, the second control unit and isolation communication unit, first
Control unit is connected with primary side, and the second control unit is connected with secondary, by isolating communication unit phase between two units
Connection.
Isolated converter is made up of at least two isolating transformers, and an output termination first of PWM units isolates transformation
The first input end of device, another output of PWM units terminates the second input of last isolating transformer, the first isolation
The first input end of second input the second isolating transformer of termination of transformer, the rest may be inferred, and the first of all isolating transformers
Output end is connected to an input of rectification unit simultaneously, and the second output end of all isolating transformers is connected to rectification unit simultaneously
Another input.
Isolating transformer unit is made up of at least two isolating transformers, and an output termination first of PWM units is isolated
The first input end of transformer, another output of PWM units terminates the second input of last isolating transformer, first
The first input end of second input the second isolating transformer of termination of isolating transformer, the rest may be inferred, all isolating transformers
First output end is connected to an input of rectification unit simultaneously, and the second output end of all isolating transformers is connected to rectification simultaneously
Another input of unit, the rest may be inferred.
Isolating transformer includes magnetic core and winding, and the winding surrounds one or more magnetic pole of the magnetic core, described
The central axis direction of winding with the wind place by road.
Isolate communicating circuit and include one or more digital communication unit and one or more analog communication unit.
Filter capacitor is made up of two groups of electric capacity between level, and one of which is placed close to the first converter, and another group close to second
The PWM units of converter are placed.
Output filter includes one group or multigroup capacitor cell, and each capacitor cell includes two electric capacity and three connections
Line, wherein one end of electric capacity one are connected with the anode of wave filter, and the negative terminal of electric capacity one is connected with one end of connecting line 1, connecting line 1
The other end be connected with the negative terminal of wave filter, one end of electric capacity two is connected with the negative terminal of wave filter, the other end of electric capacity two and company
One end of wiring 2 is connected, and the other end of connecting line 2 is connected with the anode of wave filter, one end of connecting line 3 be connected to electric capacity one and
The connected place of connecting line 1, the other end of connecting line 3 is connected to the place that electric capacity two is connected with connecting line 2.
Operation principle of the present utility model is：To enable above-mentioned purpose of the present utility model, feature and advantage brighter
It is aobvious understandable, the utility model is described in further detail with reference to the accompanying drawings and detailed description.
Embodiment one：
A kind of supply convertor, including：Converter input, converter output terminal, the first converter, the second converter,
Filter capacitor between input filter, output filter, level, controller, it is characterised in that converter input connects input filter
The input of device, the input of the first converter connects the output end of input filter, the output end connection level of the first transformer
Between filter capacitor, the second converter input connection level between filter capacitor, the second converter output end connection output filtering
The input of device, the output end of output filter connects the output end of supply convertor, the controller with foregoing one or
The several parts of person are connected；
Wherein, second converter be one isolation DC-DC converter, including PWM units, isolating transformer unit,
Rectification unit, the output of PWM units is connected to the input of isolating transformer unit, and the output of isolating transformer unit is connected to
Rectification unit；
Wherein, described controller includes two mutually isolated two units, a unit and isolating transformer unit
Input or connected part are connected, the output end of another unit and isolating transformer unit or the part phase being connected
It is connected between connection, two units by isolating communication unit.
Embodiment two：
As shown in Fig. 2 on the basis of embodiment one, wherein isolating transformer unit is by least two isolating transformer groups
Into, the first input end of output first isolating transformer of termination of PWM units, another output termination of PWM units is most
Second input of latter isolating transformer, the first of second input the second isolating transformer of termination of the first isolating transformer
Input, the rest may be inferred, and the first output end of all isolating transformers is connected to an input of rectification unit simultaneously, it is all every
The second output end from transformer is connected to another input of rectification unit simultaneously.
If constituted as shown in figure 3, isolating transformer unit has transformers by two just, second isolating transformer
Also it is last isolating transformer.
Transformer unit is realized with two or more transformers, can be easier to find general magnetic core, Ke Yiyong
There is bigger surface area help radiating, the height that whole converter allows can also be avoided exceeding.
Embodiment three：
As shown in figure 4, on the basis of embodiment one, wherein isolating transformer unit is by least two isolating transformer groups
Into simultaneously the first input end of all isolating transformers is connected to an output end of PWM units, the second of all isolating transformers
Input is connected to another output ends of PWM units simultaneously, and the of input first isolating transformer of termination of rectification unit
One output end, another input of rectification unit terminates the second output end of last isolating transformer, the first isolation transformation
First output end of second output the second isolating transformer of termination of device, the rest may be inferred.
If constituted as shown in figure 5, isolating transformer unit has transformers by two just, second isolating transformer
Also it is last isolating transformer.
Transformer unit is realized with two or more transformers, can be easier to find general magnetic core, Ke Yiyong
There is bigger surface area help radiating, the height that whole converter allows can also be avoided exceeding.
Example IV：
Isolating transformer described in embodiment 1 or embodiment 2 or embodiment 3 includes magnetic core and winding, institute
One or more magnetic pole that winding surrounds the magnetic core is stated, the central axis direction of the winding with the wind place by road.It can so protect
Card magnetic core and line bag have wind to arrive, moreover it is possible to make full use of being dissipated at intervals of surrounded magnetic core between line bag and surrounded magnetic core
Heat.
Embodiment five：
Described controller isolation communicating circuit includes one or more digital communication unit and one in embodiment 1
Or multiple analog communication units.
Wherein digital communication unit can be with the serial of the isolation circuits such as optocoupler, data signal isolator or parallel logical
Circuit is interrogated, for transmitting various data signals between the two controllers.
Wherein analog communication unit can be the circuit of the isolation circuits such as optocoupler, data signal isolator, for quickly passing
Pass level signal.Because the signal of transmission needs not move through digital coding, decoding, therefore speed is faster than digital communication unit, can
To reduce the delay of signal transmission.
Embodiment six：
As shown in fig. 6, filter capacitor is constituted by two groups between level described in embodiment 1, one of which is close to the first conversion
Device is placed, and another group of PWM unit close to the second converter is placed.So meet switch element wanting close to fan unit
Ask, reach preferable radiating effect, also meet requirement of the switch element close to filter capacitor, effectively reduce switch interference.
Embodiment seven：
As shown in fig. 7, the output filter described in embodiment 1 is by including one group or multigroup capacitor cell, Mei Ge electricity
Hold unit and include two electric capacity, three connecting lines, wherein one end of electric capacity one are connected with the anode of wave filter, the negative terminal of electric capacity one
It is connected with one end of connecting line 1, the other end of connecting line 1 is connected with the negative terminal of wave filter, one end of electric capacity two and wave filter
Negative terminal is connected, and the other end of electric capacity two is connected with one end of connecting line 2, and the other end of connecting line 2 is connected with the anode of wave filter,
One end of connecting line 3 is connected to the place that electric capacity one is connected with connecting line 1, and the other end of connecting line 3 is connected to electric capacity two with connecting
The connected place of wiring 2.
When the maximum output voltage of supply convertor is higher than the voltage of single electric capacity, but less than two electric capacity voltage when,
Line 1, connecting line 2 can be disconnected, connecting line 3 is connected, high voltage can be conveniently realized in the case where not changing PCB
Output.
When the maximum output voltage of supply convertor is less than the voltage of single electric capacity, connecting line 1, connecting line can be connected
2, line 3 is disconnected, the output of larger current can be conveniently realized in the case where not changing PCB.
Electric capacity in above-mentioned capacitor cell can be that single electric capacity or two or more electric capacity are in parallel.
Above-mentioned capacitor cell can be used alone, can also multiple capacitor cells it is used in parallel.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (7)
1. a kind of supply convertor, including converter input, converter output terminal, controller, primary and secondary side, its feature exist
In the primary side includes filter capacitor between the first converter, the second converter, input filter and level, and the secondary includes defeated
Go out wave filter and the second converter, converter input connects the input of input filter, and the input of the first converter connects
Filter capacitor between the output end of input filter, the output end connection level of the first transformer is connect, the input of the second converter connects
Filter capacitor between level is connect, the output end of the second converter connects the input of output filter, and the output end of output filter connects
Connect the output end of supply convertor；Second converter is an isolated converter, including PWM units, isolating transformer list
Member and rectification unit, the output of PWM units are connected to the input of isolating transformer unit, and the output of isolating transformer unit connects
It is connected to rectification unit；Described controller includes the first control unit, the second control unit and isolation communication unit, the first control
Unit is connected with primary side, and the second control unit is connected with secondary, is connected between two units by isolating communication unit.
2. a kind of supply convertor according to claim 1, it is characterised in that the isolated converter by least two every
From transformer composition, the first input end of one of PWM units output the first isolating transformer of termination, PWM units another
Output terminates the second input of last isolating transformer, and second the second isolation of input termination of the first isolating transformer becomes
The first input end of depressor, the rest may be inferred, and the first output end of all isolating transformers is while be connected to rectification unit one is defeated
Enter end, the second output end of all isolating transformers is connected to another input of rectification unit simultaneously.
3. a kind of supply convertor according to claim 1, it is characterised in that the isolating transformer unit is by least two
Individual isolating transformer composition, the first input end of output first isolating transformer of termination of PWM units, PWM units it is another
One output terminate last isolating transformer the second input, the first isolating transformer second input termination second every
From the first input end of transformer, the rest may be inferred, and the first output end of all isolating transformers is connected to the one of rectification unit simultaneously
Individual input, the second output end of all isolating transformers is connected to another input of rectification unit simultaneously, and the rest may be inferred.
4. a kind of supply convertor according to claim 1 or 2 or 3, it is characterised in that the isolating transformer includes magnetic
Core and winding, the winding surround one or more magnetic pole of the magnetic core, and the central axis direction of the winding with the wind place by road.
5. a kind of supply convertor according to claim 1, it is characterised in that the isolation communicating circuit comprising one or
The multiple digital communication units of person and one or more analog communication unit.
6. a kind of supply convertor according to claim 1, it is characterised in that filter capacitor is by two groups of electric capacity between the level
Composition, one of which is placed close to the first converter, and another group of PWM unit close to the second converter is placed.
7. a kind of supply convertor according to claim 1, it is characterised in that the output filter comprising one group or
Multigroup capacitor cell, each capacitor cell includes two electric capacity and three connecting lines, wherein one end of electric capacity one and wave filter
Anode is connected, and the negative terminal of electric capacity one is connected with one end of connecting line 1, and the other end of connecting line 1 is connected with the negative terminal of wave filter, electricity
Hold two one end be connected with the negative terminal of wave filter, the other end of electric capacity two is connected with one end of connecting line 2, connecting line 2 it is another
End is connected with the anode of wave filter, and one end of connecting line 3 is connected to the place that electric capacity one is connected with connecting line 1, connecting line 3 it is another
One end is connected to the place that electric capacity two is connected with connecting line 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621489544.XU CN206452309U (en) | 2016-12-30 | 2016-12-30 | A kind of supply convertor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621489544.XU CN206452309U (en) | 2016-12-30 | 2016-12-30 | A kind of supply convertor |
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| Publication Number | Publication Date |
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| CN206452309U true CN206452309U (en) | 2017-08-29 |
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| CN201621489544.XU Active CN206452309U (en) | 2016-12-30 | 2016-12-30 | A kind of supply convertor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712541A (en) * | 2016-12-30 | 2017-05-24 | 深圳英飞源技术有限公司 | Power source converter |
-
2016
- 2016-12-30 CN CN201621489544.XU patent/CN206452309U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106712541A (en) * | 2016-12-30 | 2017-05-24 | 深圳英飞源技术有限公司 | Power source converter |
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Address after: 518000 First Floor of No.1 Factory Building of Linya Industrial Park, No.1 Road, Tangtou Community, Shiyan Street, Baoan District, Shenzhen City, Guangdong Province Patentee after: SHENZHEN YINGFEIYUAN TECHNOLOGY CO., LTD. Address before: Room 101, New Energy Innovation Industrial Park, No. 1 Chuangsheng Road, Xili Street, Nanshan District, Shenzhen City, Guangdong Province, 518000 Patentee before: SHENZHEN YINGFEIYUAN TECHNOLOGY CO., LTD. |
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