CN109617400A - Bidirectional, dc DC transfer circuit - Google Patents
Bidirectional, dc DC transfer circuit Download PDFInfo
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- CN109617400A CN109617400A CN201910020351.1A CN201910020351A CN109617400A CN 109617400 A CN109617400 A CN 109617400A CN 201910020351 A CN201910020351 A CN 201910020351A CN 109617400 A CN109617400 A CN 109617400A
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- circuit
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- bidirectional
- source
- inductance
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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
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
-
- 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
Abstract
The present invention provides a kind of bidirectional, dc DC transfer circuit, comprising: Bidirectional up-down compresses switch circuit, isolated drive circuit, the first filter circuit, the second filter circuit, third filter circuit, assembly switching circuit, the first DC source and the second DC source；Isolated drive circuit compresses switch circuit for that will be sent to Bidirectional up-down from the received pulse width modulating signal of controller；Bidirectional up-down driving signal of the circuit for being provided according to isolated drive circuit that compress switch realizes boosting or decompression processing；Third filter circuit is used to remove the voltage of boost or depressurization change procedure and current ripples are shaken；The switch control signal that assembly switching circuit is used to be issued according to controller realizes whether the first DC source accessed bidirectional, dc DC transfer circuit；The voltage value that first filter circuit is used to export the first DC source is filtered；The voltage value that second filter circuit is used to export the second DC source is filtered.The circuit structure is simple, and maintenance use cost is cheap.
Description
Technical field
The present invention relates to electric car charging technique fields, more particularly, to bidirectional, dc DC transfer circuit.
Background technique
With the pay attention to day by day that Environmental is protected, new-energy automobile development is more and more rapider.Especially pure electric vehicle vapour
Vehicle.Existing pure electric automobile needs to carry out by the battery battery pack of auxiliary after the electricity use of Vehicular accumulator cell
Continuation of the journey, since the voltage value of the battery battery pack of the voltage value and auxiliary of Vehicular accumulator cell is not identical, existing electric car
Structure is complicated for DC DC translation circuit, and maintenance use cost is high.
Summary of the invention
It is an object of the invention in view of the above problems in the prior art, provide a kind of bidirectional, dc DC transfer circuit
For solving the deficiencies in the prior art.
Specifically, the embodiment of the invention provides a kind of bidirectional, dc DC transfer circuits, comprising: Bidirectional up-down compresses switch
Circuit, isolated drive circuit, the first filter circuit, the second filter circuit, third filter circuit, assembly switching circuit, first are directly
Stream source and the second DC source；
The Bidirectional up-down compress switch circuit respectively with the isolated drive circuit, second filter circuit, described
Three filter circuits are electrically connected；The third filter circuit, the assembly switching circuit, first filter circuit and described
First DC source is successively electrically connected；Second filter circuit and second DC source are electrically connected；
The isolated drive circuit from the received pulse width modulating signal of controller for that will be sent to the two-way liter
Step-down switching circuit；The Bidirectional up-down compresses switch driving signal realization of the circuit for being provided according to the isolated drive circuit
Boosting or decompression processing；The voltage that the third filter circuit is used to remove boost or depressurization change procedure is trembled with current ripples
It is dynamic；Whether the switch control signal realization that the assembly switching circuit is used to be issued according to controller connects first DC source
Enter the bidirectional, dc DC transfer circuit；The voltage value that first filter circuit is used to export first DC source into
Row filtering processing；The voltage value that second filter circuit is used to export second DC source is filtered.
As a further improvement of the above technical scheme, the Bidirectional up-down circuit that compresses switch includes: the first metal-oxide-semiconductor,
Two metal-oxide-semiconductors, the first inductance, first resistor, second resistance, 3rd resistor, the 4th resistance；
The drain electrode of first metal-oxide-semiconductor connects the third filter circuit；The source electrode of first metal-oxide-semiconductor respectively with it is described
The drain electrode of one end of the first inductance, one end of the first resistor and second metal-oxide-semiconductor is electrically connected；First MOS
The grid of pipe is electrically connected with one end of the other end of the first resistor and the second resistance respectively；First inductance
The other end and second filter circuit be electrically connected；The other end of the second resistance and the isolated drive circuit are electrical
Connection；The source electrode of second metal-oxide-semiconductor is grounded；The grid of second metal-oxide-semiconductor respectively with one end of the 3rd resistor and
One end of 4th resistance is electrically connected；The other end of the 3rd resistor is grounded；The other end of 4th resistance and institute
State isolated drive circuit electric connection.
As a further improvement of the above technical scheme, the Bidirectional up-down compresses switch circuit further include: the 5th resistance,
Six resistance, first diode and the second diode；
One end of the anode of the first diode and the 5th resistance is electrically connected；The other end of 5th resistance
It is electrically connected with the grid of first metal-oxide-semiconductor；The cathode of the first diode and the isolated drive circuit are electrically connected；
One end of the anode of second diode and the 6th resistance is electrically connected；The other end of 6th resistance
It is electrically connected with the grid of second metal-oxide-semiconductor；The cathode and the isolated drive circuit of second diode are electrically connected.
As a further improvement of the above technical scheme, the Bidirectional up-down compresses switch circuit further include: the second inductance and
Third inductance；One end of second inductance connects the drain electrode of first metal-oxide-semiconductor, and the other end of second inductance connects institute
State third filter circuit；One end of the third inductance connects the drain electrode of second metal-oxide-semiconductor, the other end of the third inductance
Connect the source electrode and the isolated drive circuit of second metal-oxide-semiconductor.
As a further improvement of the above technical scheme, first filter circuit includes: the first common mode inductance, the first electricity
Appearance, the second capacitor, third capacitor and the 4th capacitor；
Second capacitor is connected in parallel on the output end of first common mode inductance；The third capacitor is connected in parallel on described first
The input terminal of common mode inductance；One end of the first capacitor connects an input terminal of first common mode inductance, the 4th electricity
One end of appearance connects another input terminal of first common mode inductance；The other end of the first capacitor and the 4th capacitor
The other end be grounded.
As a further improvement of the above technical scheme, second filter circuit includes: the second common mode inductance, the 5th electricity
Appearance, the 6th capacitor, the 7th capacitor, the 8th capacitor and the 9th capacitor；
5th capacitor, the 6th capacitor, the 7th capacitor are in parallel；8th capacitor is connected in parallel on described second
The output end of common mode inductance；9th capacitor is connected in parallel on the input terminal of second common mode inductance.
As a further improvement of the above technical scheme, the third filter circuit includes: the tenth capacitor and the 11st electricity
Hold；Tenth capacitor is in parallel with the 11st capacitor.
As a further improvement of the above technical scheme, the assembly switching circuit include: the first relay and second after
Electric appliance；First relay is connected on the positive terminal of first DC source, and second relay is connected on described first
The negative pole end of DC source.
As a further improvement of the above technical scheme, the isolated drive circuit includes isolation drive chip and correlation
Peripheral circuit.
As a further improvement of the above technical scheme, first DC source is lithium ion battery of electric automobile packet；Institute
Stating the second DC source is that lithium ion battery energy reinforces packet.
This is at least had the following beneficial effects: compared with existing well-known technique using technical solution provided by the invention
Translation circuit structure is simple, and maintenance use cost is cheap.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the module diagram for the bidirectional, dc DC transfer circuit that one embodiment of the invention proposes；
Fig. 2 a is the left part of the electrical connection diagram for the bidirectional, dc DC transfer circuit that one embodiment of the invention proposes；
Fig. 2 b is the right part of the electrical connection diagram for the bidirectional, dc DC transfer circuit that one embodiment of the invention proposes；
Fig. 3 a is the left part of the electrical connection diagram for the bidirectional, dc DC transfer circuit that another embodiment of the present invention proposes；
Fig. 3 b is the right part of the electrical connection diagram for the bidirectional, dc DC transfer circuit that another embodiment of the present invention proposes.
Main element symbol description:
10- Bidirectional up-down compresses switch circuit；20- isolated drive circuit；The first DC source of 30-；The second DC source of 40-；50-
First filter circuit；The second filter circuit of 60-；70- third filter circuit；80- assembly switching circuit.
Specific embodiment
Hereinafter, the various embodiments of the disclosure will be described more fully.The disclosure can have various embodiments, and
It can adjust and change wherein.It should be understood, however, that: there is no disclosure protection scope is limited to specific reality disclosed herein
The intention of example is applied, but the disclosure should be interpreted as to all in the spirit and scope for covering the various embodiments for falling into the disclosure
Adjustment, equivalent and/or optinal plan.
Hereinafter, can the term " includes " used in the various embodiments of the disclosure or " may include " instruction disclosed in
Function, operation or the presence of element, and do not limit the increase of one or more functions, operation or element.In addition, such as existing
Used in the various embodiments of the disclosure, term " includes ", " having " and its cognate are meant only to indicate special characteristic, number
Word, step, operation, the combination of element, component or aforementioned item, and be understood not to exclude first one or more other
Feature, number, step, operation, element, component or aforementioned item combined presence or increase one or more features, number,
Step, operation, element, component or aforementioned item combination a possibility that.
In the various embodiments of the disclosure, statement " at least one of A or/and B " includes the text listed file names with
Any combination or all combinations.For example, statement " A or B " or " at least one of A or/and B " may include A, may include B or can
Including A and B both.
The statement (" first ", " second " etc.) used in the various embodiments of the disclosure can be modified in various implementations
Various constituent element in example, but respective sets can not be limited into element.For example, the above statement is not intended to limit the suitable of the element
Sequence and/or importance.The above statement is only used for the purpose for differentiating an element and other elements.For example, the first user fills
It sets and indicates different user device with second user device, although the two is all user apparatus.For example, not departing from each of the disclosure
In the case where the range of kind embodiment, first element is referred to alternatively as second element, and similarly, second element is also referred to as first
Element.
It should also be noted that if a constituent element ' attach ' to another constituent element by description, it can be by the first composition member
Part is directly connected to the second constituent element, and " connection " third can form between the first constituent element and the second constituent element
Element.On the contrary, when a constituent element " being directly connected to " is arrived another constituent element, it will be appreciated that in the first constituent element
And second third constituent element is not present between constituent element.
The term used in the various embodiments of the disclosure " user " can be indicated using the people of electronic device or using electricity
The device (for example, artificial intelligence electronic device) of sub-device.
The term used in the various embodiments of the disclosure is used only for the purpose of describing specific embodiments and not anticipates
In the various embodiments of the limitation disclosure.Unless otherwise defined, otherwise all terms used herein (including technical term and
Scientific term) there is contain identical with the various normally understood meanings of embodiment one skilled in the art of the disclosure
Justice.The term (term such as limited in the dictionary generally used) be to be interpreted as have in the related technical field
The identical meaning of situational meaning and Utopian meaning or meaning too formal will be interpreted as having, unless this
It is clearly defined in disclosed various embodiments.
Embodiment 1
Shown in a, Fig. 2 b as shown in Figure 1, Figure 2, the embodiment of the invention provides a kind of bidirectional, dc DC transfer circuits, comprising:
Bidirectional up-down compress switch circuit 10, isolated drive circuit 20, the first DC source 30, the second DC source 40, the first filter circuit 50,
Second filter circuit 60, third filter circuit 70, assembly switching circuit 80.
Bidirectional up-down compress switch circuit 10 respectively with isolated drive circuit 20, the second filter circuit 60, third filter circuit
70 are electrically connected；Third filter circuit 70, assembly switching circuit 80, the first filter circuit 50 and the first DC source 30 are successively electric
Property connection；Second filter circuit 60 and the second DC source 40 are electrically connected.The voltage of first DC source 30 is higher than the second DC source
40 voltage.
Isolated drive circuit 20 is pressed off for that will be sent to Bidirectional up-down from the received pulse width modulating signal of controller
Powered-down road 10；Bidirectional up-down compress switch driving signal of the circuit 10 for being provided according to isolated drive circuit 20 realize boost or
Decompression processing；Third filter circuit 70 is used to remove the voltage of boost or depressurization change procedure and current ripples are shaken；Assembly is opened
Whether the switch control signal that powered-down road 80 is used to be issued according to controller is realized the first DC source 30 access bidirectional, dc is straight
Flow translation circuit；The voltage value that first filter circuit 50 is used to export the first DC source 30 is filtered；Second filtering
The voltage value that circuit 60 is used to export the second DC source 40 is filtered.
Controller can select dsp processor, and dsp processor provides pulse width modulating signal to isolated drive circuit 20
PWMA and PWMB.
As shown in Figure 2 a, the Bidirectional up-down circuit 10 that compresses switch includes: the first metal-oxide-semiconductor Q1, the second metal-oxide-semiconductor Q2, the first inductance
L1, first resistor R1, second resistance R2,3rd resistor R3, the 4th resistance R4.
The drain electrode of first metal-oxide-semiconductor Q1 connects third filter circuit 70；The source electrode of first metal-oxide-semiconductor Q1 respectively with the first inductance L1
One end, first resistor R1 one end and the second metal-oxide-semiconductor Q2 drain electrode be electrically connected；The grid of first metal-oxide-semiconductor Q1 respectively with
One end of the other end and second resistance R2 of stating first resistor R1 is electrically connected；The other end of first inductance L1 and the second filtering
Circuit 60 is electrically connected；The other end and isolated drive circuit 20 of second resistance R2 is electrically connected；The source electrode of second metal-oxide-semiconductor Q2 connects
Ground；The grid of second metal-oxide-semiconductor Q2 is electrically connected with one end of 3rd resistor R3 and one end of the 4th resistance R4 respectively；Third electricity
Hinder the other end ground connection of R3；The other end and isolated drive circuit 20 of 4th resistance R4 is electrically connected.
Job order is as follows when boosting: firstly, the first metal-oxide-semiconductor Q1 end, the second metal-oxide-semiconductor Q2 conducting, the first inductance L1 into
Row energy storage, then the first metal-oxide-semiconductor Q1 is connected, and the second metal-oxide-semiconductor Q2 cut-off, the first inductance L1 carries out the boosting output that releases energy.Drop
Job order is as follows when pressure: firstly, the first metal-oxide-semiconductor Q1 is connected, the second metal-oxide-semiconductor Q2 cut-off, the first inductance L1 carries out energy storage, then
First metal-oxide-semiconductor Q1 cut-off, the second metal-oxide-semiconductor Q2 conducting, the first inductance L1 carry out the reduced output voltage that releases energy.
Since dsp processor provides pulse width modulating signal PWMA and PWMB to isolated drive circuit 20.And DSP works
Lower voltage is 3.3V, and inadequate dynamics drives high-power MOS tube Q1 and Q2, it is therefore desirable to be compressed switch circuit 10 in Bidirectional up-down
Front end be arranged isolated drive circuit 20.
As shown in Figure 2 a, isolated drive circuit 20 includes: the devices such as isolation drive chip and relevant peripheral resistance capacitance
Part.Isolation drive chip can select the IC chip of common 8 port.Such as: IR2181, IRS2186 etc..
In other embodiments, as shown in Figure 3a, the Bidirectional up-down circuit 10 that compresses switch may also include that the 5th resistance R5,
Six resistance R6, first diode D1 and the second diode D2.
One end of the anode of first diode D1 and the 5th resistance R5 are electrically connected；The other end and first of 5th resistance R5
The grid of metal-oxide-semiconductor Q1 is electrically connected；The cathode and isolated drive circuit 10 of first diode D1 is electrically connected；First diode D1
The both ends second resistance R2 are connected in parallel on after connecting with the 5th resistance R5.
The anode of second diode D2 and one end of the 6th resistance R6 are electrically connected；The other end and second of 6th resistance R6
The grid of metal-oxide-semiconductor Q2 is electrically connected；The cathode and isolated drive circuit 10 of second diode D2 is electrically connected.Second diode D2
The 4th both ends resistance R4 are connected in parallel on after connecting with the 6th resistance R6.
In other embodiments, as shown in Figure 3a, the Bidirectional up-down circuit 10 that compresses switch may also include, the second inductance L2 and
Three inductance L3；One end of second inductance L2 connects the drain electrode of the first metal-oxide-semiconductor Q1, the other end connection third filtering of the second inductance L2
Circuit 70；One end of third inductance L3 connects the drain electrode of the second metal-oxide-semiconductor Q2, and the other end of third inductance L3 connects the second metal-oxide-semiconductor
The source electrode and isolated drive circuit 20 of Q2.
As shown in Figure 2 b, the first filter circuit 50 includes: the first common mode inductance T1, first capacitor C1, the second capacitor C2,
Three capacitor C3 and the 4th capacitor C4；
Second capacitor C2 is connected in parallel on the output end of the first common mode inductance T1；Third capacitor C3 is connected in parallel on the first common mode inductance T1
Input terminal；One end of first capacitor C1 connects an input terminal of the first common mode inductance T1, one end connection of the 4th capacitor C4 the
Another input terminal of one common mode inductance T1；The other end of the other end of first capacitor C1 and the 4th capacitor C4 are grounded.
First filter circuit 50 filters out high frequency spikes interference, prevents the spike of the output voltage of the first DC source 30 to electronic
The communication system of automobile interferes.
Second filter circuit 60 includes: the second common mode inductance T2, the 5th capacitor C5, the 6th capacitor C6, the 7th capacitor C7,
Eight capacitor C8 and the 9th capacitor C9.
5th capacitor C5, the 6th capacitor C6, the 7th capacitor C7 are parallel with one another；8th capacitor C8 is connected in parallel on the second common mode inductance
The output end of T2；9th capacitor C9 is connected in parallel on the input terminal of the second common mode inductance T2.
Third filter circuit 70 includes: the tenth capacitor C10 and the 11st capacitor C11；Tenth capacitor C10 and the 11st capacitor
C11 is in parallel.
One input terminal of the first DC source 30 is also provided with fuse F1, and an input terminal of the second DC source 40 can also be set
It is equipped with fuse F2, setting fuse F1 and F2 prevent circuit breaker from burning the first DC source 30 and the second DC source 40.
As shown in Figure 2 b, assembly switching circuit 80 includes: the first relay K1 and the second relay K2；First relay K1
It is connected on the positive terminal of the first DC source 30, the second relay K2 is connected on the negative pole end of the first DC source 30.
First relay K1 and the second relay K2 are controlled by dsp controller, when controller detects that electric car is logical
It is normal to interrogate everyway, fault-free alarm, controller, which sends communication packet, to be allowed the first DC source accessing bidirectional, dc direct current
Second relay K2 is closed by translation circuit, after the first DC source 30 needs to control internal preliminary filling, by the first relay K1
Closure.
First DC source 30 is that the electric car that voltage range is 72V~657V carries lithium ion battery packet；Second direct current
Source 40 is to increase the lithium ion battery energy that the voltage range matched is 12V~576V to reinforce packet.
In other embodiments, as shown in Figure 3b, it compresses switch between circuit 10 and the second filter circuit 60 in Bidirectional up-down
It is additionally provided with overcurrent protection resistance R25.
In other embodiments, as shown in Figure 3b, it is also set up between third filter circuit 70 and assembly switching circuit 80
There is current sample to detect R11.One end of assembly switching circuit 80 is provided with resistance R13, resistance R14, resistance R15, resistance R16 structure
At branch pressure voltage detection circuit for detecting 130V DC voltage.The other end of assembly switching circuit 80 be provided with resistance R17,
The branch pressure voltage detection circuit that resistance R18, resistance R19, resistance R20 are constituted is for detecting busbar voltage.Similarly, resistance R21, electricity
The branch pressure voltage detection circuit that resistance R22, resistance R23, resistance R24 are constituted is for detecting 48V DC voltage.
It will be appreciated by those skilled in the art that the accompanying drawings are only schematic diagrams of a preferred implementation scenario, module in attached drawing or
Process is not necessarily implemented necessary to the present invention.
It will be appreciated by those skilled in the art that the module in device in implement scene can be described according to implement scene into
Row is distributed in the device of implement scene, can also be carried out corresponding change and is located at the one or more dresses for being different from this implement scene
In setting.The module of above-mentioned implement scene can be merged into a module, can also be further split into multiple submodule.
Aforementioned present invention serial number is for illustration only, does not represent the superiority and inferiority of implement scene.Disclosed above is only the present invention
Several specific implementation scenes, still, the present invention is not limited to this, and the changes that any person skilled in the art can think of is all
Protection scope of the present invention should be fallen into.
Claims (10)
1. a kind of bidirectional, dc DC transfer circuit characterized by comprising Bidirectional up-down compress switch circuit, isolation drive electricity
Road, the first filter circuit, the second filter circuit, third filter circuit, assembly switching circuit, the first DC source and the second direct current
Source；
The Bidirectional up-down compress switch circuit respectively with the isolated drive circuit, second filter circuit, the third filter
Wave circuit is electrically connected；The third filter circuit, the assembly switching circuit, first filter circuit and described first
DC source is successively electrically connected；Second filter circuit and second DC source are electrically connected；
The isolated drive circuit from the received pulse width modulating signal of controller for that will be sent to the Bidirectional up-down pressure
Switching circuit；Bidirectional up-down driving signal of the circuit for being provided according to the isolated drive circuit that compress switch is realized and is boosted
Or decompression processing；The third filter circuit is used to remove the voltage of boost or depressurization change procedure and current ripples are shaken；
The switch control signal that the assembly switching circuit is used to be issued according to controller realizes whether access first DC source
The bidirectional, dc DC transfer circuit；The voltage value that first filter circuit is used to export first DC source carries out
Filtering processing；The voltage value that second filter circuit is used to export second DC source is filtered.
2. bidirectional, dc DC transfer circuit according to claim 1, which is characterized in that the Bidirectional up-down presses off powered-down
Road includes: the first metal-oxide-semiconductor, the second metal-oxide-semiconductor, the first inductance, first resistor, second resistance, 3rd resistor, the 4th resistance；
The drain electrode of first metal-oxide-semiconductor connects the third filter circuit；The source electrode of first metal-oxide-semiconductor is respectively with described first
The drain electrode of one end of inductance, one end of the first resistor and second metal-oxide-semiconductor is electrically connected；First metal-oxide-semiconductor
Grid is electrically connected with one end of the other end of the first resistor and the second resistance respectively；First inductance it is another
One end and second filter circuit are electrically connected；The other end of the second resistance electrically connects with the isolated drive circuit
It connects；The source electrode of second metal-oxide-semiconductor is grounded；The grid of second metal-oxide-semiconductor respectively with one end of the 3rd resistor and institute
The one end for stating the 4th resistance is electrically connected；The other end of the 3rd resistor is grounded；The other end of 4th resistance with it is described
Isolated drive circuit is electrically connected.
3. bidirectional, dc DC transfer circuit according to claim 2, which is characterized in that the Bidirectional up-down presses off powered-down
Road further include: the 5th resistance, the 6th resistance, first diode and the second diode；
One end of the anode of the first diode and the 5th resistance is electrically connected；The other end of 5th resistance and institute
The grid for stating the first metal-oxide-semiconductor is electrically connected；The cathode of the first diode and the isolated drive circuit are electrically connected；
One end of the anode of second diode and the 6th resistance is electrically connected；The other end of 6th resistance and institute
The grid for stating the second metal-oxide-semiconductor is electrically connected；The cathode and the isolated drive circuit of second diode are electrically connected.
4. bidirectional, dc DC transfer circuit according to claim 2, which is characterized in that the Bidirectional up-down presses off powered-down
Road further include: the second inductance and third inductance；One end of second inductance connects the drain electrode of first metal-oxide-semiconductor, and described
The other end of two inductance connects the third filter circuit；One end of the third inductance connects the drain electrode of second metal-oxide-semiconductor,
The other end of the third inductance connects the source electrode and the isolated drive circuit of second metal-oxide-semiconductor.
5. bidirectional, dc DC transfer circuit according to claim 1, which is characterized in that the first filter circuit packet
It includes: the first common mode inductance, first capacitor, the second capacitor, third capacitor and the 4th capacitor；
Second capacitor is connected in parallel on the output end of first common mode inductance；The third capacitor is connected in parallel on first common mode
The input terminal of inductance；One end of the first capacitor connects an input terminal of first common mode inductance, the 4th capacitor
One end connects another input terminal of first common mode inductance；The other end of the first capacitor and the 4th capacitor it is another
One end is grounded.
6. bidirectional, dc DC transfer circuit according to claim 1, which is characterized in that the second filter circuit packet
It includes: the second common mode inductance, the 5th capacitor, the 6th capacitor, the 7th capacitor, the 8th capacitor and the 9th capacitor；
5th capacitor, the 6th capacitor, the 7th capacitor are in parallel；8th capacitor is connected in parallel on second common mode
The output end of inductance；9th capacitor is connected in parallel on the input terminal of second common mode inductance.
7. bidirectional, dc DC transfer circuit according to claim 1, which is characterized in that the third filter circuit packet
It includes: the tenth capacitor and the 11st capacitor；Tenth capacitor is in parallel with the 11st capacitor.
8. bidirectional, dc DC transfer circuit according to claim 1, which is characterized in that the assembly switching circuit packet
It includes: the first relay and the second relay；First relay is connected on the positive terminal of first DC source, and described second
Relay is connected on the negative pole end of first DC source.
9. bidirectional, dc DC transfer circuit according to claim 1, which is characterized in that the isolated drive circuit packet
It includes: isolation drive chip and relevant peripheral circuit.
10. bidirectional, dc DC transfer circuit according to claim 1, which is characterized in that first DC source is electricity
Electrical automobile lithium ion battery packet；Second DC source is that lithium ion battery energy reinforces packet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910020351.1A CN109617400A (en) | 2019-01-09 | 2019-01-09 | Bidirectional, dc DC transfer circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910020351.1A CN109617400A (en) | 2019-01-09 | 2019-01-09 | Bidirectional, dc DC transfer circuit |
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| CN109617400A true CN109617400A (en) | 2019-04-12 |
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| CN201910020351.1A Pending CN109617400A (en) | 2019-01-09 | 2019-01-09 | Bidirectional, dc DC transfer circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114640402A (en) * | 2022-03-11 | 2022-06-17 | 云南安爆数码电子科技有限公司 | Method and circuit for receiving communication pulse current signal by double common mode inductors |
| CN114655071A (en) * | 2022-02-18 | 2022-06-24 | 华为数字能源技术有限公司 | Battery, battery control method and electric vehicle |
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| CN114640402A (en) * | 2022-03-11 | 2022-06-17 | 云南安爆数码电子科技有限公司 | Method and circuit for receiving communication pulse current signal by double common mode inductors |
| CN114640402B (en) * | 2022-03-11 | 2024-03-15 | 云南创芯微电子科技有限公司 | Method and circuit for receiving communication pulse current signal by double common mode inductors |
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Application publication date: 20190412 |