CN107820668A - A kind of two-way changing device - Google Patents
A kind of two-way changing device Download PDFInfo
- Publication number
- CN107820668A CN107820668A CN201780001880.6A CN201780001880A CN107820668A CN 107820668 A CN107820668 A CN 107820668A CN 201780001880 A CN201780001880 A CN 201780001880A CN 107820668 A CN107820668 A CN 107820668A
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- China
- Prior art keywords
- switching switch
- current
- transformer
- way changing
- sampling device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- 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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
-
- 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
- H02M1/0003—Details of control, feedback or regulation circuits
- H02M1/0009—Devices or circuits for detecting current in a converter
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measurement Of Current Or Voltage (AREA)
- Dc-Dc Converters (AREA)
Abstract
A kind of two-way changing device includes：Current sampling device and transformer.Current sampling device is used for the current information for gathering the side of transformer first.Transformer is used to by transformer isolation change two-way changing device input side energy to outlet side.The two-way changing device can realize control and the defencive function of two-way circuit, reduce device design cost, reduce device volume.
Description
Technical field
The present invention relates to vehicle electric field, and in particular to a kind of two-way changing device.
Background technology
At present, new-energy automobile turns into future automobile industrial expansion direction increasingly, with the development of new-energy automobile
With popularization, the functional requirement of the electronic power parts on new-energy automobile is also more and more, such as the two-way change of Vehicular charger
Change, vehicle-mounted DCDC two-way changing, two-way changing of electric machine controller etc., in the case where not increasing the device cost of part,
By changing software function, meet the two-way changing function of above-mentioned part, it has also become the basic function demand of new-energy automobile.
In the prior art, though having developed two-way changing Vehicular charger, and the vehicle-mounted DCDC of two-way changing, circuit are answered
It is miscellaneous or be unable to input and output security isolation, and in the application circuit of current sample, typically using two or more
Current sampling device, and need control circuit to identify specific working condition, to confirm by which current sampling device
Control, control strategy is complex, is unfavorable for the Miniaturization Design of design cost optimization and product, has in actual popularization certain
Limitation.
The content of the invention
The embodiment of the invention discloses a kind of two-way changing device, it is possible to achieve the control of two-way circuit and defencive function,
And the design cost of device is reduced, reduce device volume.
First aspect present invention discloses a kind of two-way changing device, including current sampling device, transformer, the transformer
The first end of the first side connect the current sampling device；The current sampling device is used to detect the side of transformer first
Current information, the transformer be used for the two-way changing device input side energy is changed to output by transformer isolation
Side.
With reference to first aspect present invention, in the first possible implementation of first aspect present invention, the electric current
Sampling apparatus includes current sensing means, and the current sensing means is used for the current information for gathering the side of transformer first,
And detect the size of the current information.
With reference to the first possible implementation of first aspect present invention, second in first aspect present invention may
Implementation in, the current sampling device also includes control circuit, and the control circuit connects the current sensing means,
The control circuit is used for the current information sent according to the current sensing means, controls and protect the two-way changing device
The electric current of input side.
With reference to second of possible implementation of first aspect present invention, the third in first aspect present invention may
Implementation in, the first side of the transformer connects the electric current input side of the two-way changing device, the current sample
The current information of the input side is sent to by the current information for the input side of device collection, the current sampling device
The control circuit, the control circuit protection and the size of current for controlling the two-way changing device input side.
With reference to second of possible implementation of first aspect present invention, in the 4th kind of possibility of first aspect present invention
Implementation in, the second side of the transformer connects the electric current input side of the two-way changing device, the transformer
First side is the outlet side of the two-way changing device, and the electric current for the outlet side of the current sampling device collection is believed
The current information of the outlet side is sent to the control circuit by breath, the current sampling device, the control circuit according to
The turn ratio of the transformer determines the input current that the transformer second is surveyed, and protects and control the two-way changing to fill
Put the size of current of input side.
With reference to first aspect present invention, in the 5th kind of possible implementation of first aspect present invention, described device
Also include：First electric capacity, the second electric capacity, the first switching switch, the second switching switch, the 3rd switching switch, the 4th switching switch,
5th switching switch, the 6th switching switch, the 7th switching switch, the 8th switching switch, the second of the first side of the transformer
End connection the first switching switch and the second switching switch, current sampling device connection the 3rd switching are opened
Close and the 4th switching switchs；The positive pole of first electric capacity is opened with the described first switching switch and the 3rd switching
Close in parallel, the negative pole of first electric capacity and the described second switching switch and the 4th switching switch in parallel, the transformation
First end connection the 5th switching switch of second side of device and the 6th switching switch, the second side of the transformer
The second end connection it is described 7th switching switch and it is described 8th switching switch, the positive pole of second electric capacity and the described 5th
Switching switch and it is described 7th switching switch in parallel, the negative pole of second electric capacity with the described 6th switching switch and it is described
8th switching switch in parallel.
In the embodiment of the present invention, the current sampling device is used for the current information for gathering the side of transformer first, institute
Transformer is stated to be used to by transformer isolation change the two-way changing device input side energy to outlet side.The present invention is implemented
Example is realized control and the defencive function of two-way circuit, reduced by using a current sampling device in the side of transformer first
Device design cost, reduces device volume.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, make required in being described below to embodiment
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the present invention, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 a are a kind of structural representations of two-way changing device disclosed in the embodiment of the present invention；
Fig. 1 b are a kind of structural representations of current sampling device disclosed in the embodiment of the present invention；
Fig. 1 c are the structural representations of another current sampling device disclosed in the embodiment of the present invention；
Fig. 1 d are the structural representations of another two-way changing device disclosed in the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is part of the embodiment of the present invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
Term " first ", " second ", " the 3rd " in description and claims of this specification and the accompanying drawing and "
Four " etc. be to be used to distinguish different objects, rather than for describing particular order.In addition, term " comprising " and " having " and it
Any deformation, it is intended that cover non-exclusive include.Such as contain the process of series of steps or unit, method, be
The step of system, product or equipment are not limited to list or unit, but alternatively also including the step of not listing or list
Member, or alternatively also include for the intrinsic other steps of these processes, method, product or equipment or unit.
Referenced herein " embodiment " is it is meant that the special characteristic, structure or the characteristic that describe can wrap in conjunction with the embodiments
In at least one embodiment of the present invention.Each position in the description occur the phrase might not each mean it is identical
Embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art explicitly and
Implicitly understand, embodiment described herein can be combined with other embodiments.
Fig. 1 a are referred to, Fig. 1 a are that a kind of first embodiment structure of two-way changing device is shown disclosed in the embodiment of the present invention
It is intended to, as shown in Figure 1a, a kind of two-way changing device described in the present embodiment can include current sampling device, transformation
Device, wherein：
The first end of first side of the transformer connects the current sampling device；The current sampling device is used to examine
The current information of the side of transformer first is surveyed, the transformer is used to the two-way changing device input side energy passing through change
Depressor isolation is changed to outlet side.
Wherein, as shown in Figure 1 b, the current sampling device includes current sensing means, the current sensing means collection
The current information of the side of transformer first, and detect the size of the current information.
Wherein, as illustrated in figure 1 c, the two-way changing device also includes control circuit, and the control circuit connects the electricity
Flow detection device, the control circuit be used for according to the current sensing means send current information, control and protection described in
The electric current of two-way changing device input side, overload protection is carried out to the circuit, when the current loading is more than predetermined threshold value,
Timely electric current of cutting off the electricity supply.
Specifically, the first side of the transformer can connect electric current input side, electric current outlet side can be also connected, when described
When the side of transformer first connects electric current input side, the current information for input side of the current sensing means collection, the electricity
Flow detection device detects the current information, and when the current information meets the needs of input side electric current, by the electric current
Information is sent to the control circuit, and the big of the two-way changing device input current is protected and controlled to the control circuit
It is small；
When the first side of the transformer connects electric current outlet side, current sampling device collection for outlet side
The current information of the outlet side is sent to the control circuit, the control electricity by current information, the current sampling device
Road determines the input current of the survey of transformer second according to the turn ratio of the transformer, and the control circuit is to the input
Electric current implements overload protection, and controls the size of the input current of the two-way changing device, to reach to the two-way changing
The function of control and the protection of device.
Specifically, as shown in Figure 1 d, the two-way changing device also includes the first electric capacity (C1), the second electric capacity (C2),
One switching switch (SW1), the second switching switch (SW2), the 3rd switching switch (SW3), the 4th switching switch (SW4), the 5th cuts
Switch (SW5) is changed, the 6th switching switch (SW6), the 7th switching switch (SW7), the 8th switches switch (SW8), wherein：
The second end connection the first switching switch of first side of the transformer and the second switching switch, institute
State current sampling device connection the 3rd switching switch and the 4th switching switch；The positive pole of first electric capacity and institute
State the first switching switch and it is described 3rd switching switch in parallel, the negative pole of first electric capacity with described second switching switch with
And it is described 4th switching switch in parallel, the second side of the transformer first end connection it is described 5th switching switch and it is described
6th switching switch, the second end connection the 7th switching switch of the second side of the transformer and the 8th switching are opened
Close, the positive pole of second electric capacity and the described 5th switching switch and the 7th switching switch in parallel, second electric capacity
Negative pole with the described 6th switching switch and it is described 8th switching switch in parallel.
As can be seen that the current sampling device is used for the electric current for gathering the side of transformer first in the embodiment of the present invention
Information, the transformer are used to by transformer isolation change the two-way changing device input side energy to outlet side.This
Inventive embodiments realize control and the protection work(of two-way circuit by using a current sampling device in the side of transformer first
Can, device design cost is reduced, reduces device volume.
The embodiment of the present invention also provides a kind of computer-readable storage medium, wherein, the computer-readable storage medium can be stored with journey
Sequence, the program include the part or all of function of above-mentioned two-way changing device when performing.
Although combining each embodiment herein, invention has been described, however, implementing the present invention for required protection
During, those skilled in the art are by checking the accompanying drawing, disclosure and appended claims, it will be appreciated that and it is real
Other changes of the existing open embodiment.In the claims, the word of " comprising " (comprising) one is not excluded for other compositions
Part or step, "a" or "an" are not excluded for multiple situations.Single processor or other units can realize claim
In some functions enumerating.Mutually different has been recited in mutually different dependent some measures, it is not intended that these are arranged
Apply to combine and produce good effect.
It will be understood by those skilled in the art that embodiments of the invention can be provided as method, apparatus (equipment) or computer journey
Sequence product.Therefore, in terms of the present invention can use complete hardware embodiment, complete software embodiment or combine software and hardware
The form of embodiment.Moreover, the present invention can use the calculating for wherein including computer usable program code in one or more
The computer program that machine usable storage medium is implemented on (including but is not limited to magnetic disk storage, CD-ROM, optical memory etc.)
The form of product.Computer program is stored/distributed in suitable medium, is provided together with other hardware or one as hardware
Part, other distribution forms can also be used, such as pass through the wired or wireless telecommunication systems of Internet or other.
The present invention be with reference to the embodiment of the present invention method, apparatus (equipment) and computer program product flow chart with/
Or block diagram describes.It should be understood that can by each flow in computer program instructions implementation process figure and/or block diagram and/
Or square frame and the flow in flow chart and/or block diagram and/or the combination of square frame.These computer program instructions can be provided
To the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing devices to produce one
Individual machine so that produced by the instruction of computer or the computing device of other programmable data processing devices for realizing
The device for the function of being specified in one flow of flow chart or multiple flows and/or one square frame of block diagram or multiple square frames.
These computer program instructions, which may be alternatively stored in, can guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works so that the instruction being stored in the computer-readable memory, which produces, to be included referring to
Make the manufacture of device, the command device realize in one flow of flow chart or multiple flows and/or one square frame of block diagram or
The function of being specified in multiple square frames.
These computer program instructions can be also loaded into computer or other programmable data processing devices so that counted
Series of operation steps is performed on calculation machine or other programmable devices to produce computer implemented processing, so as in computer or
The instruction performed on other programmable devices is provided for realizing in one flow of flow chart or multiple flows and/or block diagram one
The step of function of being specified in individual square frame or multiple square frames.
Although with reference to specific features and embodiment, invention has been described, it is clear that, do not departing from this hair
In the case of bright spirit and scope, various modifications and combinations can be carried out to it.Correspondingly, the specification and drawings are only institute
The exemplary illustration of the invention that attached claim is defined, and be considered as covered in the scope of the invention any and all and repair
Change, change, combining or equivalent.Obviously, those skilled in the art can to the present invention carry out it is various change and modification without
Depart from the spirit and scope of the present invention.So, if the present invention these modifications and variations belong to the claims in the present invention and its
Within the scope of equivalent technologies, then the present invention is also intended to comprising including these changes and modification.
Claims (6)
- A kind of 1. two-way changing device, it is characterised in that including：Current sampling device, transformer, the first side of the transformer First end connect the current sampling device；The current sampling device is used for the electric current letter for detecting the side of transformer first Breath, the transformer are used to by transformer isolation change the two-way changing device input side energy to outlet side.
- 2. device according to claim 1, it is characterised in that the current sampling device includes current sensing means, institute The current information that current sensing means is used to gather the side of transformer first is stated, and detects the size of the current information.
- 3. device according to claim 2, it is characterised in that the current sampling device also includes control circuit, described Control circuit connects the current sensing means, and the electric current that the control circuit is used to be sent according to the current sensing means is believed Breath, control and protect the electric current of the two-way changing device input side.
- 4. device according to claim 3, it is characterised in that the first side of the transformer connects the two-way changing dress The electric current input side put, the current information for the input side of the current sampling device collection, the current sampling device The current information of the input side is sent to the control circuit, the two-way changing is protected and controlled to the control circuit The size of current of device input side.
- 5. device according to claim 3, it is characterised in that the second side of the transformer connects the two-way changing dress The electric current input side put, the first side of the transformer are the outlet side of the two-way changing device, the current sampling device The current information of the outlet side is sent to described by the current information for the outlet side of collection, the current sampling device Control circuit, the control circuit determine the input current of the survey of transformer second according to the turn ratio of the transformer, and Protect and control the size of current of the two-way changing device input side.
- 6. device according to claim 1, it is characterised in that described device also includes：First electric capacity, the second electric capacity, the One switching switch, the second switching switch, the 3rd switching switch, the 4th switching switch, the 5th switching switch, the 6th switching switch, 7th switching switch, the 8th switching switch, the first side of the transformer the second end connection it is described first switching switch and The second switching switch, current sampling device connection the 3rd switching switch and the 4th switching switch；Institute State the positive pole and the described first switching switch and the 3rd switching switch in parallel, the negative pole of first electric capacity of the first electric capacity With described second switching switch and it is described 4th switching switch in parallel, the second side of the transformer first end connection described in 5th switching switch and the 6th switching switch, the second end connection the 7th switching of the second side of the transformer are opened Close and the 8th switching switch, the positive pole of second electric capacity are opened with the described 5th switching switch and the 7th switching Close in parallel, the negative pole of second electric capacity and the described 6th switching switch and the 8th switching switch in parallel.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2017/073149 WO2018145281A1 (en) | 2017-02-09 | 2017-02-09 | Bi-directional conversion apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107820668A true CN107820668A (en) | 2018-03-20 |
Family
ID=61606901
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780001880.6A Pending CN107820668A (en) | 2017-02-09 | 2017-02-09 | A kind of two-way changing device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107820668A (en) |
| WO (1) | WO2018145281A1 (en) |
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|---|---|---|---|---|
| CN1121276A (en) * | 1994-10-03 | 1996-04-24 | 三菱电机株式会社 | Motor operation controller and insulation type bidirectional DC voltage converter |
| CN1890866A (en) * | 2003-12-11 | 2007-01-03 | 本田技研工业株式会社 | Dc-Dc converter |
| CN102064702A (en) * | 2010-12-31 | 2011-05-18 | 刘闯 | Bidirectionally isolating type series resonance DC/DC converter |
| CN102201754A (en) * | 2011-04-26 | 2011-09-28 | 刘闯 | Topology and constant-frequency voltage hysteresis control of multi-level inverter |
| CN104158405A (en) * | 2014-08-25 | 2014-11-19 | 东南大学 | Two-way DC/DC converter for micro-grid and magnetic bias digital suppression method |
| CN204832315U (en) * | 2015-08-04 | 2015-12-02 | 广东爱迪贝克软件科技有限公司 | Two -way current detection circuit |
| CN105391304A (en) * | 2015-12-20 | 2016-03-09 | 魏腾飞 | PWM control method for bidirectional full-bridge DC-DC converter |
| CN105871215A (en) * | 2016-05-17 | 2016-08-17 | 华南理工大学 | Rectification control circuit for bidirectional CLLLC resonant converter |
| CN106026754A (en) * | 2016-05-24 | 2016-10-12 | 国网福建省电力有限公司 | Multi-purpose two-way power electric test power supply system and control method thereof |
| CN206490589U (en) * | 2017-02-09 | 2017-09-12 | 上海欣锐电控技术有限公司 | A kind of two-way changing device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2729516B1 (en) * | 1995-01-13 | 1997-04-18 | Sextant Avionique | BIDIRECTIONAL CONTINUOUS-CONTINUOUS VOLTAGE CONVERTERS AND CURRENT SENSOR |
-
2017
- 2017-02-09 WO PCT/CN2017/073149 patent/WO2018145281A1/en active Application Filing
- 2017-02-09 CN CN201780001880.6A patent/CN107820668A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1121276A (en) * | 1994-10-03 | 1996-04-24 | 三菱电机株式会社 | Motor operation controller and insulation type bidirectional DC voltage converter |
| CN1890866A (en) * | 2003-12-11 | 2007-01-03 | 本田技研工业株式会社 | Dc-Dc converter |
| CN102064702A (en) * | 2010-12-31 | 2011-05-18 | 刘闯 | Bidirectionally isolating type series resonance DC/DC converter |
| CN102201754A (en) * | 2011-04-26 | 2011-09-28 | 刘闯 | Topology and constant-frequency voltage hysteresis control of multi-level inverter |
| CN104158405A (en) * | 2014-08-25 | 2014-11-19 | 东南大学 | Two-way DC/DC converter for micro-grid and magnetic bias digital suppression method |
| CN204832315U (en) * | 2015-08-04 | 2015-12-02 | 广东爱迪贝克软件科技有限公司 | Two -way current detection circuit |
| CN105391304A (en) * | 2015-12-20 | 2016-03-09 | 魏腾飞 | PWM control method for bidirectional full-bridge DC-DC converter |
| CN105871215A (en) * | 2016-05-17 | 2016-08-17 | 华南理工大学 | Rectification control circuit for bidirectional CLLLC resonant converter |
| CN106026754A (en) * | 2016-05-24 | 2016-10-12 | 国网福建省电力有限公司 | Multi-purpose two-way power electric test power supply system and control method thereof |
| CN206490589U (en) * | 2017-02-09 | 2017-09-12 | 上海欣锐电控技术有限公司 | A kind of two-way changing device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018145281A1 (en) | 2018-08-16 |
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