CN107733236B - A kind of two-way Sofe Switch DC transfer circuit of wide scope and its control method - Google Patents
A kind of two-way Sofe Switch DC transfer circuit of wide scope and its control method Download PDFInfo
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- CN107733236B CN107733236B CN201711025676.6A CN201711025676A CN107733236B CN 107733236 B CN107733236 B CN 107733236B CN 201711025676 A CN201711025676 A CN 201711025676A CN 107733236 B CN107733236 B CN 107733236B
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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
- H02M3/22—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
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/3353—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having at least two simultaneously operating switches on the input side, e.g. "double forward" or "double (switched) flyback" converter
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0068—Battery or charger load switching, e.g. concurrent charging and load supply
-
- 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
- H02M1/08—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters
- H02M1/088—Circuits specially adapted for the generation of control voltages for semiconductor devices incorporated in static converters for the simultaneous control of series or parallel connected semiconductor devices
-
- 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
- H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
- H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/79—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal 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
- H02M7/797—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal 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
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/66—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal
- H02M7/68—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters
- H02M7/72—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/79—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal 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
- H02M7/81—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output with possibility of reversal 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 arranged for operation in parallel
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Dc-Dc Converters (AREA)
Abstract
The present invention provides a kind of two-way Sofe Switch DC transfer circuit of wide scope and its control method.The circuit includes at least one first sub- translation circuit, at least one the second sub- translation circuit and at least one controller；The first sub- translation circuit includes the first series-resonant inverting circuit, the first high-frequency isolation transformer, shares bridge arm and the first bridge arm；The second sub- translation circuit includes the second series-resonant inverting circuit, the second high-frequency isolation transformer and the second bridge arm.The method needs the voltage that exports according to translation circuit and needs positive or reverse operation, the on-off that timing and the control shared bridge arm are opened in control forward or backwards make the described first sub- translation circuit, the second sub- translation circuit forward or backwards alone or in combination output voltage to realize wide scope two-way changing.Circuit structure of the invention is succinct, control is simple, has high performance-price ratio, can satisfy the work of wide scope.
Description
Technical field
The present invention relates to DC-DC converter, in particular to the two-way Sofe Switch DC transfer circuit of a kind of wide scope and
Its control method.
Background technique
With the fast development of energy storaging product and battery apparatus related fields, the power supply that can carry out two-way changing is produced
Product demand is also more and more, while considering the compatibility of different product, and corresponding voltage range is also more and more wider, therefore conventional
Two sets circuits of use (charging is discharged) Lai Shixian two-way changing does not have cost advantage, while common circuit is being imitated
Rate and meets in terms of wide-voltage range and also have deficiency；Exist in the more use of the existing solution of product of one direction work
A winding is added on transformer, with reference to Fig. 1, winding needs to switch over access with Switch device S1 according to voltage；With reference to
Fig. 2, and if necessary to use the voltage of two coils, then two-way switching switch S1, S2 are needed, it is same on the basis of original
A transformer Multiple coil then means that each voltage group is required plus switching device, then circuit can seem sufficiently complex, and efficiency
It can reduce.If twocouese works, with reference to Fig. 3, although the rectifier diode of transformer secondary output is changed to HF switch pipe,
But the shortcomings that circuit complexity and inefficiency, can still exist, while the output power of the single phase transformer is also limited, if pressed
More solito reasoning adds a unit above-mentioned to expand power, and circuit is more complicated, and cost performance is very low.
Summary of the invention
The main object of the present invention provides a kind of two-way Sofe Switch direct current change of wide scope aiming at the deficiencies in the prior art
Change circuit and its control method.
The invention adopts the following technical scheme:
A kind of two-way Sofe Switch DC transfer circuit of wide scope, including at least one first sub- translation circuit, at least one
Second sub- translation circuit and at least one controller；The first sub- translation circuit includes the first series-resonant inverting circuit, the
One high-frequency isolation transformer shares bridge arm and the first bridge arm；The second sub- translation circuit includes the second series-resonant inverting electricity
Road, the second high-frequency isolation transformer and the second bridge arm；The side of first and second series-resonant inverting circuit is used for first directly
Flow side connection, the other side of first and second series-resonant inverting circuit respectively with the original of first and second high-frequency isolation transformer
The both ends on side connect；The controller is for controlling described first and second series-resonant inverting circuit, the shared bridge arm, institute
State the first bridge arm and second bridge arm；In the one end on the secondary side of first high-frequency isolation transformer and first bridge arm
Between put connection, the other end connect with the intermediate point of the shared bridge arm；The one end on the secondary side of second high-frequency isolation transformer
It is connect with the intermediate point of the shared bridge arm, the other end is connect with the intermediate point of second bridge arm；The two of the shared bridge arm
End and the both ends of first bridge arm are separately connected to form first via rectification circuit；The both ends of the shared bridge arm and described second
The both ends of bridge arm are separately connected to form No. second rectification circuit；The both ends of the first via rectification circuit, second tunnel rectification
The both ends of circuit with the second DC side for connecting；The voltage and need just that the controller needs to export according to translation circuit
To still reverse operation, timing and the on-off of the control shared bridge arm are opened in control forward or backwards becomes first son
Change circuit, the second sub- translation circuit forward or backwards alone or in combination output voltage to realize wide scope two-way changing.
In some preferred embodiments, the first series-resonant inverting circuit include two HF switch pipe Q3A and
Q4A, the first driving circuit, the first filter capacitor, the first resonant capacitance and the first resonant inductance, the HF switch pipe Q3A's
Source electrode connects the drain electrode of the HF switch pipe Q4A, one end of first resonant capacitance and the one of first filter capacitor
End connection, the drain electrode of the HF switch pipe Q3A are connect with the other end of first filter capacitor, the HF switch pipe
The source electrode of Q4A is connect with the other end of first resonant capacitance, and an input terminal of the first high-frequency isolation transformer passes through institute
The intermediate point that the first resonant inductance is connected to the HF switch pipe Q3A Yu the HF switch pipe Q4A is stated, described first is high
Another input terminal of frequency isolating transformer is connect with the intermediate point of first resonant capacitance and first filter capacitor, institute
The first driving circuit is stated to connect with the HF switch pipe Q3A and the HF switch pipe Q4A；
Second series-resonant inverting circuit includes two HF switch pipe Q3B, Q4B, the second driving circuit, the second filtered electricals
Hold, the second resonant capacitance and the second resonant inductance, the source electrode of the HF switch pipe Q3B connect the HF switch pipe Q4B's
Drain electrode, one end of second resonant capacitance are connect with one end of second filter capacitor, the leakage of the HF switch pipe Q3B
Pole is connect with the other end of second filter capacitor, source electrode and second resonant capacitance of the HF switch pipe Q4B
Other end connection, an input terminal of the second high-frequency isolation transformer are connected to the high frequency by second resonant inductance and open
Close pipe Q3B and the HF switch pipe Q4B intermediate point, another input terminal of second high-frequency isolation transformer with it is described
Second resonant capacitance is connected with the intermediate point of second filter capacitor, second driving circuit and the HF switch pipe
Q3B is connected with the HF switch pipe Q4B；
The shared bridge arm include two HF switch pipes Q11A and Q12A, the drain electrode of the HF switch pipe Q12A with
The source electrode of the HF switch pipe Q11A connects；
First bridge arm includes two HF switch pipes Q9A and Q10A, the drain electrode of the HF switch pipe Q10A and institute
State the source electrode connection of HF switch pipe Q9A；
Second bridge arm includes two HF switch pipes Q9B and Q10B, the drain electrode of the HF switch pipe Q10B and institute
State the source electrode connection of HF switch pipe Q9B.
In some preferred embodiments, the form of first and second series-resonant inverting circuit includes semibridge system
Circuit and full bridge circuit.
In some preferred embodiments, first DC side, second DC side are that can provide or can
Absorb the device or circuit of energy.
On the other hand, the present invention also provides a kind of control method of the two-way Sofe Switch DC transfer circuit of wide scope, packets
Include following steps:
The voltage and detection translation circuit that detection translation circuit needs to export need positive or reverse operation；It is described just
Refer to the first DC side to work for input, the second DC side is output；The reverse operation refers to that the second DC side is input,
First DC side is output；
The working condition of translation circuit is controlled according to testing result, comprising: if desired the first sub- translation circuit or the second son
Translation circuit output voltage then controls the first sub- translation circuit or the second sub- translation circuit enters working condition；If desired first
The sum of the output voltage of sub- translation circuit and the second sub- translation circuit then controls the first sub- translation circuit and the second sub- translation circuit
Enter working condition；
It includes: to make the first series-resonant inverting circuit, first high that the first sub- translation circuit of the control, which enters working condition,
Frequency isolating transformer, shared bridge arm and the first bridge arm are converted according to LLC and synchronous full-bridge rectification works, forward or backwards
Control opens timing and is worked forward or backwards with realizing；
It includes: to make the second series-resonant inverting circuit, second high that the second sub- translation circuit of the control, which enters working condition,
Frequency isolating transformer, shared bridge arm and the second bridge arm are converted according to LLC and synchronous full-bridge rectification works, forward or backwards
Control opens timing and is worked forward or backwards with realizing；
The first sub- translation circuit of the control and the second sub- translation circuit include: into working condition
The primary side of transformer forms LLC and converts performance loop, controls shared bridge arm and does not work, the first high-frequency isolation transformer
Coupled voltages and the second high-frequency isolation transformer coupled voltages secondary side formed overlaying relation；Make to form electricity in translation circuit
Logical circulation road, to realize positive work；
It controls shared bridge arm not work, the first bridge arm and the work of the second bridge arm, the secondary side of the first high-frequency isolation transformer
Bearing the sum of voltage and the receiving voltage on secondary side of the second high-frequency isolation transformer forms current path, the primary side sense of transformer
Voltage should be gone out；The primary side of transformer forms LLC and converts performance loop, realizes reverse operation.
In some preferred embodiments, it controls the first sub- translation circuit and the second sub- translation circuit enters work shape
State, under positive working condition: according to the corresponding relationship of the working frequency of series-resonant inverting circuit and resonance frequency, and according to
The needs of output voltage export a positive specific frequency after controlling operation, if positive specific frequency is greater than resonance frequency,
It is then dropping voltage characteristic；It is boosting characteristic if positive specific frequency is less than resonance frequency.
In some preferred embodiments, it controls the first sub- translation circuit and the second sub- translation circuit enters work shape
State, under reverse operation state: according to the corresponding relationship of series-resonant inverting circuit work frequency and resonance frequency, and according to defeated
The needs of voltage export a reversed specific frequency after controlling operation out, if reversed specific frequency is greater than resonance frequency,
It is boosting characteristic, if reversely specific frequency is dropping voltage characteristic less than resonance frequency.
In further preferred embodiment, the first series-resonant inverting circuit include two HF switch pipe Q3A and
Q4A, the source electrode of the HF switch pipe Q3A connect the drain electrode of the HF switch pipe Q4A；Second series-resonant inverting circuit packet
Two HF switch pipes Q3B and Q4B are included, the source electrode of the HF switch pipe Q3B connects the drain electrode of the HF switch pipe Q4B；
Under reverse operation state:
When the HF switch pipe Q3A and the HF switch pipe Q3B are by positively biased, Xiang Suoshu HF switch pipe Q3A and institute
It states HF switch pipe Q3B and applies driving voltage to form synchronous rectification.
In further preferred embodiment, the HF switch pipe (Q4A) and the HF switch pipe Q4B are by positively biased
When, Xiang Suoshu HF switch pipe Q4A and the HF switch pipe Q4B apply driving voltage to form synchronous rectification.
The present invention also provides a kind of electrical energy changer, including signal processor, memory and one or more programs, institutes
It states one or more programs to be stored in the memory, and is configured to be executed by the signal processor, the journey
Sequence includes the instruction for executing the above method.
Compared with prior art, the beneficial effects of the present invention are as follows:
It avoids and connects the two-way HF switch bring circuit complexity led to and loss in transformer circuit, multiplexing
Bridge arm is shared, so that simple circuit, control are simply, control forward or backwards opens timing to realize two-way changing, has high property
Valence ratio, different voltages section are high-efficient, reliable when work.By control, the first high-frequency isolation transformer, the second high frequency can be made
Translation circuit where isolating transformer is independent or combines output voltage simultaneously, can export different voltages, especially combine
It is superimposed output voltage when output voltage, can satisfy the work of wide scope.
In a preferred embodiment, the present invention also has the following beneficial effects:
Further, inverter circuit uses full bridge circuit, the input current of translation circuit is identical, input voltage also phase
With in the case where, the original edge voltage of full bridge circuit is twice of half bridge circuit, then the output work of power full formula circuit
Rate is that twice of half bridge circuit namely full bridge circuit are suitble to high-power output.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of DC transfer circuit in the prior art；
Fig. 2 is a kind of structural schematic diagram of variant of Fig. 1；
The electrical block diagram of transformer secondary when Fig. 3 is the circuit twocouese work in Fig. 1；
Fig. 4 is electrical block diagram of the invention；
Fig. 5 is the flow chart of control method of the invention；
Control sequential figure when Fig. 6 is the positive work of circuit of the invention；
Control sequential figure when Fig. 7 is the reverse operation of circuit of the invention；
Fig. 8 is a kind of electrical block diagram of mode of texturing of the invention.
Specific embodiment
It elaborates below to embodiments of the present invention.It is emphasized that following the description is only exemplary,
The range and its application being not intended to be limiting of the invention.
With reference to Fig. 4, a kind of two-way Sofe Switch DC transfer circuit of wide scope, including the first sub- translation circuit and the second son become
Circuit is changed, first and second series-resonant inverting circuit 210 and 220, first and second high-frequency isolation transformer T are specifically includedRA
And TRB, share bridge arm 330, first and second bridge arm 310 and 320 and controller 400；First and second series-resonant inverting electricity
The side on road 210 and 220 is used to connect with the first DC side 110, first and second series-resonant inverting circuit 210 and 220
The other side respectively with first and second high-frequency isolation transformer TRAAnd TRBPrimary side both ends connection；Controller 400 is for controlling
First and second series-resonant inverting circuit 210 and 220, shared bridge arm 330, first and second bridge arm 310 and 320；First is high
Frequency isolating transformer TRAOne end 1A on secondary side connect with the intermediate point of the first bridge arm 310, other end 2A and shared bridge arm 330
Intermediate point connection；Second high-frequency isolation transformer TRBOne end 1B on secondary side connect with the intermediate point of shared bridge arm 330, the other end
2B is connect with the intermediate point of the second bridge arm 320；The both ends at the both ends and the first bridge arm that share bridge arm 330 are separately connected to form first
Road rectification circuit；The both ends at the both ends and the second bridge arm 320 that share bridge arm 330 are separately connected to form No. second rectification circuit；The
All the way the both ends of rectification circuit, No. second rectification circuit both ends for being connect with the second DC side 120；With regard to the first son transformation electricity
For road comprising the first series-resonant inverting circuit 210, the first high-frequency isolation transformer TRA, share bridge arm 330, the first bridge
Arm 310；For the second sub- translation circuit comprising the second series-resonant inverting circuit 220, the second high-frequency isolation transformer
TRB, share bridge arm 330, the second bridge arm 320.First sub- translation circuit and the second sub- translation circuit are that two independent differences are returned
Road individually can export or input, and can also combine output or input simultaneously, be controlled respectively by controller 400；Controller 400
Need the voltage that exports according to translation circuit and need positive or reverse operation, control forward or backwards open timing and
The on-off for controlling shared bridge arm 330 keeps the first sub- translation circuit, the second sub- translation circuit defeated alone or in combination forward or backwards
Voltage is out to realize wide scope two-way changing.
Specifically, the first series-resonant inverting circuit 210, the second series-resonant inverting circuit 220, first are high with reference to Fig. 4
Frequency isolating transformer TRAWith the second high-frequency isolation transformer TRBQuantity be one, 210 He of the first series-resonant inverting circuit
Second series-resonant inverting circuit 220 is half bridge circuit, shares bridge arm 330, the first bridge arm 310, the rectification of the second bridge arm 320
Element is the HF switch pipe for having anti-parallel diodes.First series-resonant inverting circuit 210 includes that two high frequencies are opened
Close pipe Q3A and Q4A, the first driving circuit 211, the first filter capacitor Cr2a, the first resonant capacitance Cr1a and the first resonant inductance
The drain electrode of the source electrode connection HF switch pipe Q4A of Lra, HF switch pipe Q3A, one end of the first resonant capacitance Cr1a and the first filter
One end of wave capacitor Cr2a connects, and the drain electrode of HF switch pipe Q3A is connect with the other end of the first filter capacitor Cr2a, high frequency
The source electrode of switching tube Q4A is connect with the other end of the first resonant capacitance Cr1a, the first high-frequency isolation transformer TRAOne input
End 4A is connected to the intermediate point of HF switch pipe Q3A Yu HF switch pipe Q4A by the first resonant inductance Lra, the first high frequency every
From transformer TRAAnother input terminal 5A connect with the first resonant capacitance Cr1a with the intermediate point of the first filter capacitor Cr2a,
One drive circuit 211 is connect with HF switch pipe Q3A and HF switch pipe Q4A.
Second series-resonant inverting circuit packet 220 includes two HF switch pipes Q3B and Q4B, the second driving circuit 221,
The source electrode of two filter capacitor Cr2b, the second resonant capacitance Cr1b and the second resonant inductance Lrb, HF switch pipe Q3B connect high frequency
The drain electrode of switching tube Q4B, one end of the second resonant capacitance Cr1b are connect with one end of the second filter capacitor Cr2b, HF switch
The drain electrode of pipe Q3B is connect with the other end of the second filter capacitor Cr2b, the source electrode and the second resonant capacitance of HF switch pipe Q4B
The other end of Cr1b connects, the second high-frequency isolation transformer TRBAn input terminal 4B be connected to by the second resonant inductance Lrb
The intermediate point of HF switch pipe Q3B and HF switch pipe Q4B, the second high-frequency isolation transformer TRBAnother input terminal 5B and
Two resonant capacitance Cr1b are connect with the intermediate point of the second filter capacitor Cr2b, the second driving circuit 221 and HF switch pipe Q3B
It is connected with HF switch pipe Q4B；It shares bridge arm 330 and includes two HF switches pipe Q11A and Q12A, HF switch pipe Q12A's
Drain electrode is connect with the source electrode of HF switch pipe Q11A；
First bridge arm 310 includes two HF switches pipe Q9A and Q10A, the drain electrode of HF switch pipe Q10A and HF switch
The source electrode of pipe Q9A connects.
Second bridge arm 320 includes two HF switches pipe Q9B and Q10B, the drain electrode of HF switch pipe Q10B and HF switch
The source electrode of pipe Q9B connects.
With reference to Fig. 4, the first bridge arm 310 and shared bridge arm 330 are connect with third driving circuit 303, the second bridge arm 320 and
The connection of four driving circuits 304, controller 400 send control signals to third driving circuit 303 and the 4th driving circuit 304, from
And control the on-off of the first bridge arm 310, the second bridge arm 320 and shared bridge arm 330；First high-frequency isolation transformer TRASecondary side
One end 1A draws the intermediate point that a lead O is connected to the first bridge arm 310, and other end 2A connect and draws with shared bridge arm 330
One lead A；Second high-frequency isolation transformer TRBOne end 1B also accordingly draw a lead A and the first high-frequency isolation transformation
Device TRALead A connection, with the first high-frequency isolation transformer TRAIt is multiplexed together and shares bridge arm 330, other end 2B is then connected to the
One lead B of intermediate point and extraction of two bridge arms 320.
Filter capacitor Cr2a, resonant capacitance Cr1a, resonant inductance Lra, HF switch pipe in first sub- translation circuit
Q3A, the parameter of HF switch pipe Q4A are identical as the second sub- translation circuit, the first high-frequency isolation transformer TRAPrimary side around
Group and the second high-frequency isolation transformer TRBIt is consistent.
First DC side 110, the second DC side 120 are that can provide or the device or circuit of energy-absorbing,
In one as input, another then as output.First DC side 110 includes DC source V1 and high-voltage energy storage filter capacitor
C1, the positive and negative both ends of high-voltage energy storage filter capacitor C1 are connect with the positive and negative both ends of DC source V1 respectively.Second DC side includes straight
Stream source V2 and filter capacitor C2, the both ends of filter capacitor C2 are connect with the both ends of DC source V2 respectively.The shape of DC source V1 and V2
Formula includes DC power supply, battery and the transformed power supply of AC rectification.Certainly, high-voltage energy storage filter capacitor C1 and filter capacitor
C2 also can be included in into the first sub- translation circuit or the second sub- translation circuit, and the present invention is not limited thereto.
The 401 input sample signal of one end of controller 400, the other end 402 export sampled signal.With reference to Fig. 4, in transformer
Primary side, the first series-resonant inverting circuit 210 is the relationship of approximate parallel connection, the two with the second series-resonant inverting circuit 220
Connect after parallel connection with the both ends+BUS and-BUS of high-voltage energy storage filter capacitor C1 namely the first series-resonant inverting circuit 210 with
Both ends after second series-resonant inverting circuit, 220 parallel connection are connect with DC source V1.On the secondary side of transformer, first via rectified current
The both ends on road, No. second rectification circuit both ends connect with the both ends of filter capacitor C2 namely first via rectification circuit two
It holds, the both ends of No. second rectification circuit are connect with DC source V2.
HF switch pipe Q3A and Q4A, the first filter capacitor in the side of DC source V1, the first sub- translation circuit
Cr2a, the first resonant capacitance Cr1a and the first resonant inductance Lra are identical as in the second sub- translation circuit, and the first high-frequency isolation becomes
Depressor TRAWith the second high-frequency isolation transformer TRBPrimary side winding it is also consistent.
With reference to Fig. 5, the two-way Sofe Switch DC transfer circuit of wide scope of the invention uses method control as follows:
The voltage and detection translation circuit that detection translation circuit needs to export need positive or reverse operation；Positive work
Work refers to the first DC side 110 for input, and the second DC side 120 is output；Reverse operation refers to that the second DC side 120 is defeated
Enter, the first DC side 110 is output.Since there are the first, second sub- translation circuits, they both can individually be exported, can also be with
Simultaneously combine output, moreover, the first DC side 110, the second DC side 120 be can provide or the device of energy-absorbing or
Person's circuit can satisfy the demand of different occasions then two-way changing can be realized, it is therefore desirable to determine the first, second son
How translation circuit works.
The working condition of translation circuit is controlled according to testing result, comprising: if desired the first sub- translation circuit or the second son
Translation circuit output voltage then controls the first sub- translation circuit or the second sub- translation circuit enters working condition；If desired first
The sum of the output voltage of sub- translation circuit and the second sub- translation circuit then controls the first sub- translation circuit and the second sub- translation circuit
Enter working condition.That is, according to testing result, carrying out work by the sub- translation circuit of the control of controller 400 first, second
Make, including which strip translation circuit is opened and positive or reverse operation.
Controlling the first sub- translation circuit to enter working condition includes: to keep the first series-resonant inverting circuit 210, first high
Frequency isolating transformer TRA, share that bridge arm 330 and the first bridge arm 310 are converted according to LLC and synchronous full-bridge rectification works, just
To or Reverse Turning Control open timing and worked forward or backwards with realizing.It is specific as follows:
As the first high-frequency isolation transformer T of needsRAThe translation circuit at place forward or backwards output voltage when namely first
Output voltage, controller 400 control open timing forward or backwards sub- translation circuit forward or backwards, issue signal, make first
Sub- translation circuit work.First high-frequency isolation transformer TRAPrimary side be half-bridge LLC transformation loop, secondary side is by sharing bridge arm 330
Full bridge rectifier synchronous with the first formation of bridge arm 310, the second bridge arm 320 does not work at this time.According to conventional half-bridge or full-bridge
The control principle of LLC transformation and synchronous full-bridge rectification is controlled.
Control the second sub- translation circuit enter working condition include: make the second series-resonant inverting circuit, the second high frequency every
It is converted from transformer, shared bridge arm and the second bridge arm according to LLC and synchronous full-bridge rectification works, controlled forward or backwards
It opens timing and is worked forward or backwards with realizing.It is specific as follows:
As the second high-frequency isolation transformer T of needsRBThe translation circuit at place forward or backwards output voltage when namely second
Output voltage, controller 400 control open timing forward or backwards sub- translation circuit forward or backwards, issue signal, make second
Sub- translation circuit work.Second high-frequency isolation transformer TRBPrimary side be half-bridge LLC transformation loop, secondary side is by sharing bridge arm 330
Full bridge rectifier synchronous with the second formation of bridge arm 320, the first bridge arm 310 does not work at this time.According to conventional half-bridge or full-bridge
The control principle of LLC transformation and synchronous full-bridge rectification is controlled.
It controls the first sub- translation circuit and the second sub- translation circuit includes: into working condition
The primary side of transformer forms LLC and converts performance loop, controls shared bridge arm 330 and does not work, the first high-frequency isolation becomes
Depressor TRACoupled voltages and the second high-frequency isolation transformer TRBCoupled voltages secondary side formed overlaying relation；Make transformation electricity
Current path is formed in road, to realize positive work.It is specific as follows:
When the first sub- translation circuit of needs and the second sub- translation circuit work joint output voltage together, then pass through control
Device 400 controls the height of the sub- translation circuit of HF switch pipe Q3A, Q4A, Q9A, Q10A and second in the first sub- translation circuit
The on-off of frequency switching tube Q3B, Q4B, Q9B, Q10B, HF switch the pipe Q11A and Q12A shared in bridge arm 330 at this time do not work.
Control sequential refers to Fig. 6, and HF switch pipe Q3A and Q3B is open-minded or HF switch pipe Q4A and Q4B is open-minded, then
The performance loop of resonance oscillation semi-bridge is formed in the primary side of two transformers；After HF switch pipe Q3A and Q3B are opened, two transformers
The coupled voltages on secondary side be respectively VTa and VTb, according to Same Name of Ends principle, upper just lower negative, the two voltages can natural shape bunchiness
Connection relationship, shared bridge arm 330, which is equal to, to be not present, and therefore, O lead end end is positive, and B lead end is negative；As coupled voltages VTa
Voltage with the sum of coupled voltages VTb greater than DC source V2 or when making the diode positively biased of HF switch pipe Q9A and Q10B,
Current path is formed, thus output voltage.Similarly, after HF switch pipe Q4A and Q4B are opened, the secondary side of two transformers
Coupled voltages are respectively VTa and VTb, according to Same Name of Ends principle, it is upper it is negative under just, the two voltages also can self-assembling formation series connection close
System, shared bridge arm 330, which is equal to, to be not present, and therefore, O lead end is negative, and B lead end is positive；When coupled voltages VTa with couple
When the sum of voltage VTb is greater than the voltage of DC source V2 or makes the diode positively biased of HF switch pipe Q10A and Q9B, current path
It is formed, thus output voltage.
Further, it controls the first sub- translation circuit and the second sub- translation circuit enters working condition, forward direction work shape
Under state: according to the corresponding relationship of the working frequency of series-resonant inverting circuit and resonance frequency, and according to the need of output voltage
It is dropping voltage characteristic that a positive specific frequency is exported after controlling operation if positive specific frequency is greater than resonance frequency；
It is boosting characteristic if positive specific frequency is less than resonance frequency.Specifically, if it is dropping voltage characteristic, then transformer secondary
HF switch pipe Q9A and Q10B it is open-minded or HF switch pipe Q10A and Q9B is open-minded, with reference to Fig. 6, they when opening
Between opposite can move back, the turn-off time can level off to HF switch pipe Q3A or Q3B, while be opened according to the reduction of load current size
The logical time；If it is boosting characteristic, with reference to Fig. 7, their service time, the turn-off time can court other than it opposite can move back
Off-centring makes the turn-off time of front and back level off to symmetrically.
It controls shared bridge arm 330 not work, the first bridge arm 310 and the work of the second bridge arm 320, the first high-frequency isolation transformer
TRASecondary side receiving voltage and the second high-frequency isolation transformer TRBThe sum of the receiving voltage on secondary side form current path,
The primary side of transformer induces voltage；The primary side of transformer forms LLC and converts performance loop, realizes reverse operation.It is specific as follows:
When the first sub- translation circuit of needs and the second sub- translation circuit work joint output voltage together, then pass through control
Device 400 controls the height of the sub- translation circuit of HF switch pipe Q3A, Q4A, Q9A, Q10A and second in the first sub- translation circuit
The on-off of frequency switching tube Q3B, Q4B, Q9B, Q10B, HF switch the pipe Q11A and Q12A shared in bridge arm 330 at this time do not work.
Control sequential refers to Fig. 7, and after HF switch pipe Q9A and Q10B are opened, the secondary side of two transformers can be according to equivalent
Impedance is respectively subjected to voltage VTa and VTb automatically, and according to Same Name of Ends principle, upper just lower negative, shared bridge arm 330 is not opened equivalent
In being not present, therefore, O lead end is positive, and B lead end is negative, i.e., the sum of voltage VTa and voltage VTb are approximately equal to DC source V2
Voltage, current path formed, and the primary coil of two transformers can induce voltage at this time, since the two is approximate in parallel closes
System, therefore it can connect to voltage VTa and VTb to divide to have and reversely clamp down on effect.The end primary side induced voltage 4A, 4B is positive at this time,
The end 5A, 5B is negative, and therefore, when HF switch pipe Q3A and Q3B is by positively biased, electric current can be exported to the first DC side 110, if
Apply driving voltage to HF switch pipe Q3A and Q3B, then forms the relationship of synchronous rectification；Similarly, HF switch pipe Q9B and
After Q10A is opened, the secondary side of two transformers is respectively subjected to voltage VTa and VTb, according to Same Name of Ends principle, it is upper it is negative under just, it is former
Shared bridge arm 330, which is not opened to be equal to, to be not present；Therefore, i.e. O lead end is negative, and B lead end is positive, voltage VTa and voltage
The sum of VTb is approximately equal to the voltage of DC source V2, and current path is formed, and the primary coil of two transformers can induce voltage,
Since the two is approximate parallel relationship, the partial pressure that can connect to voltage VTa and VTb, which has, reversely clamps down on effect, at this time primary side
The end induced voltage 5A, 5B is positive, and the end 4A, 4B is negative, and therefore, when HF switch pipe Q4A and Q4B is by positively biased, electric current can be exported
The relationship of synchronous rectification is formed if applying driving voltage to HF switch pipe Q4A and Q4B to the first DC side 110.
Further, it controls the first sub- translation circuit and the second sub- translation circuit enters working condition, reverse operation shape
Under state: according to the corresponding relationship of series-resonant inverting circuit work frequency and resonance frequency, and according to the needs of output voltage
A reversed specific frequency is exported after controlling operation, is boosting characteristic, such as if reversed specific frequency is greater than resonance frequency
The reversed specific frequency of fruit is less than resonance frequency, then is dropping voltage characteristic.If it is dropping voltage characteristic, the HF switch pipe of transformer secondary
Q3A and Q3B or HF switch pipe Q4A and Q4B can reduce the time opened according to load current size and voltage.
As described above, the invention avoids connect the two-way HF switch bring circuit led in transformer circuit
Complexity and loss are multiplexed and share bridge arm, so that simple circuit, control are simply, control opens timing with reality forward or backwards
Existing two-way changing, improves cost performance, and different voltages section is high-efficient, reliable when work.By control, can make the first high frequency every
Individually or simultaneously combine output voltage from the translation circuit where transformer, the second high-frequency isolation transformer, can export not
It is superimposed output voltage when same voltage, especially joint output voltage, can satisfy the work of wide scope.In addition, utilizing
The mode of resonance of first and second series-resonant inverting circuit can realize Sofe Switch, can reduce each electronic component in inverter circuit
Stress is opened and turned off, to reduce switching loss, helps to improve the working frequency or efficiency of inverter circuit, and then reduce
Volume improves power density.
Above the present invention is described, but the present invention can also have the form of some modifications, such as:
With reference to Fig. 8, the form of the first series-resonant inverting circuit 210 and the second series-resonant inverting circuit 220 can be with
It is full bridge circuit；Inverter circuit uses full bridge circuit, the input current of translation circuit is identical, input voltage is also identical
In the case of, the original edge voltage of full bridge circuit is twice of half bridge circuit, then the output power of power full formula circuit is
Twice of half bridge circuit namely full bridge circuit are suitble to high-power output；
If necessary to broader output voltage, then it is further added by a way translation circuit, two leads of corresponding transformer are B
And C, share the second bridge arm 320 of original, the newly-increased transformation bridge arm connecting with lead C.
The present invention also provides a kind of electrical energy changer, including signal processor, memory and one or more programs, one
A or multiple programs are stored in memory, and are configured to be executed by signal processor, and program includes for executing
State the instruction of method.
The above content is combine it is specific/further detailed description of the invention for preferred embodiment, cannot recognize
Fixed specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs,
Without departing from the inventive concept of the premise, some replacements or modifications can also be made to the embodiment that these have been described,
And these substitutions or variant all shall be regarded as belonging to protection scope of the present invention.
Claims (9)
1. a kind of two-way Sofe Switch DC transfer circuit of wide scope, it is characterised in that: including at least one first sub- translation circuit,
At least one second sub- translation circuit and at least one controller；The first sub- translation circuit includes the first series-resonant inverting
Circuit, shares bridge arm and the first bridge arm at the first high-frequency isolation transformer；The second sub- translation circuit includes the second series resonance
Inverter circuit, the second high-frequency isolation transformer and the second bridge arm；The side of first and second series-resonant inverting circuit be used for
First DC side connection, the other side of first and second series-resonant inverting circuit respectively with first and second high-frequency isolation transformation
The both ends of the primary side of device connect；The controller is for controlling first and second described series-resonant inverting circuit, described sharing
Bridge arm, first bridge arm and second bridge arm；The one end on the secondary side of first high-frequency isolation transformer and described first
The intermediate point of bridge arm connects, and the other end is connect with the intermediate point of the shared bridge arm；The pair of second high-frequency isolation transformer
The one end on side is connect with the intermediate point of the shared bridge arm, and the other end is connect with the intermediate point of second bridge arm；It is described to share
The both ends of bridge arm and the both ends of first bridge arm are separately connected to form first via rectification circuit；The both ends of the shared bridge arm with
The both ends of second bridge arm are separately connected to form No. second rectification circuit；The both ends of the first via rectification circuit, described
The both ends of No. two rectification circuits with the second DC side for connecting；The controller according to translation circuit need the voltage that exports with
And positive or reverse operation is needed, the on-off that timing and the control shared bridge arm are opened in control forward or backwards makes described
First sub- translation circuit, the second sub- translation circuit forward or backwards alone or in combination output voltage to realize that wide scope is double
To transformation；
The first series-resonant inverting circuit includes two HF switch pipes Q3A and Q4A, the source of the HF switch pipe Q3A
Pole connects the drain electrode of the HF switch pipe Q4A；Second series-resonant inverting circuit includes two HF switches pipe Q3B and Q4B,
The source electrode of the HF switch pipe Q3B connects the drain electrode of the HF switch pipe Q4B；
First bridge arm includes two HF switch pipes Q9A and Q10A, drain electrode and the height of the HF switch pipe Q10A
The source electrode of frequency switching tube Q9A connects；
Second bridge arm includes two HF switch pipes Q9B and Q10B, drain electrode and the height of the HF switch pipe Q10B
The source electrode of frequency switching tube Q9B connects；
The controller is used to control the described first sub- translation circuit and the second sub- translation circuit enters working condition, just
To under working condition:
The shared bridge arm is controlled not work so that the coupled voltages of first high-frequency isolation transformer and second high frequency
The coupled voltages of isolating transformer form overlaying relation on secondary side；
According to the corresponding relationship of the working frequency of series-resonant inverting circuit and resonance frequency, and according to output voltage through controlling
A positive specific frequency is exported after operation；
If it is described forward direction specific frequency be greater than the resonance frequency, be dropping voltage characteristic, then the HF switch pipe Q9A and
Q10B is opened or HF switch the pipe Q10A and Q9B are open-minded, and service time moves back, and the turn-off time levels off to the high frequency and opens
Pipe Q3A or Q3B are closed, while reducing the time opened according to load current size；
If it is described forward direction specific frequency be less than the resonance frequency, be boosting characteristic, then the HF switch pipe Q9A and
Q10B is opened or HF switch the pipe Q10A and Q9B are open-minded, and service time moves back, and the turn-off time is towards off-centring so that preceding
Turn-off time afterwards levels off to symmetrically.
2. the two-way Sofe Switch DC transfer circuit of wide scope according to claim 1, it is characterised in that:
First series-resonant inverting circuit further includes that the first driving circuit, the first filter capacitor, the first resonant capacitance and first are humorous
Shake inductance, and one end of first resonant capacitance is connect with one end of first filter capacitor, the HF switch pipe Q3A's
Drain electrode is connect with the other end of first filter capacitor, the source electrode and first resonant capacitance of the HF switch pipe Q4A
Other end connection, an input terminal of the first high-frequency isolation transformer is connected to the high frequency by first resonant inductance
The intermediate point of switching tube Q3A and the HF switch pipe Q4A, another input terminal of first high-frequency isolation transformer and institute
It states the first resonant capacitance to connect with the intermediate point of first filter capacitor, first driving circuit and the HF switch pipe
Q3A is connected with the HF switch pipe Q4A；
Second series-resonant inverting circuit further includes that the second driving circuit, the second filter capacitor, the second resonant capacitance and second are humorous
Shake inductance, and one end of second resonant capacitance is connect with one end of second filter capacitor, the HF switch pipe Q3B's
Drain electrode is connect with the other end of second filter capacitor, the source electrode and second resonant capacitance of the HF switch pipe Q4B
Other end connection, an input terminal of the second high-frequency isolation transformer is connected to the high frequency by second resonant inductance
The intermediate point of switching tube Q3B and the HF switch pipe Q4B, another input terminal of second high-frequency isolation transformer and institute
It states the second resonant capacitance to connect with the intermediate point of second filter capacitor, second driving circuit and the HF switch pipe
Q3B is connected with the HF switch pipe Q4B；
The shared bridge arm includes two HF switch pipes Q11A and Q12A, drain electrode and the height of the HF switch pipe Q12A
The source electrode of frequency switching tube Q11A connects.
3. the two-way Sofe Switch DC transfer circuit of wide scope according to claim 1, it is characterised in that: described first and
The form of two series-resonant inverting circuits includes half bridge circuit and full bridge circuit.
4. the two-way Sofe Switch DC transfer circuit of wide scope according to any one of claims 1 to 3, it is characterised in that: institute
State the first DC side, second DC side is that can provide or the device or circuit of energy-absorbing.
5. a kind of control method of the two-way Sofe Switch DC transfer circuit of wide scope, it is characterised in that include the following steps:
The voltage and detection translation circuit that detection translation circuit needs to export need positive or reverse operation；The forward direction work
Work refers to the first DC side for input, and the second DC side is output；The reverse operation refers to that the second DC side is to input, first
DC side is output；
The working condition of translation circuit is controlled according to testing result, comprising: if desired the first sub- translation circuit or the second son transformation
Circuit output voltage then controls the first sub- translation circuit or the second sub- translation circuit enters working condition；If desired the first son becomes
Change the sum of the output voltage of circuit and the second sub- translation circuit, then control the first sub- translation circuit and the second sub- translation circuit into
Enter working condition；
The first sub- translation circuit of the control enter working condition include: make the first series-resonant inverting circuit, the first high frequency every
It is converted from transformer, shared bridge arm and the first bridge arm according to LLC and synchronous full-bridge rectification works, controlled forward or backwards
It opens timing and is worked forward or backwards with realizing；
The second sub- translation circuit of the control enter working condition include: make the second series-resonant inverting circuit, the second high frequency every
It is converted from transformer, shared bridge arm and the second bridge arm according to LLC and synchronous full-bridge rectification works, controlled forward or backwards
It opens timing and is worked forward or backwards with realizing；
The first sub- translation circuit of the control and the second sub- translation circuit include: into working condition
The primary side of transformer forms LLC and converts performance loop, controls shared bridge arm and does not work, the coupling of the first high-frequency isolation transformer
The coupled voltages for closing voltage and the second high-frequency isolation transformer form overlaying relation on secondary side；Keep formation electric current in translation circuit logical
Road, to realize positive work；
It controls shared bridge arm not work, the first bridge arm and the work of the second bridge arm, the receiving on the secondary side of the first high-frequency isolation transformer
The sum of voltage and the receiving voltage on secondary side of the second high-frequency isolation transformer form current path, and the primary side of transformer induces
Voltage；The primary side of transformer forms LLC and converts performance loop, realizes reverse operation；
The first series-resonant inverting circuit includes two HF switch pipes Q3A and Q4A, the source of the HF switch pipe Q3A
Pole connects the drain electrode of the HF switch pipe Q4A；Second series-resonant inverting circuit includes two HF switches pipe Q3B and Q4B,
The source electrode of the HF switch pipe Q3B connects the drain electrode of the HF switch pipe Q4B；
First bridge arm includes two HF switch pipes Q9A and Q10A, drain electrode and the height of the HF switch pipe Q10A
The source electrode of frequency switching tube Q9A connects；
Second bridge arm includes two HF switch pipes Q9B and Q10B, drain electrode and the height of the HF switch pipe Q10B
The source electrode of frequency switching tube Q9B connects；
The first sub- translation circuit of the control and the second sub- translation circuit enter working condition, under positive working condition:
According to the corresponding relationship of the working frequency of series-resonant inverting circuit and resonance frequency, and according to output voltage through controlling
A positive specific frequency is exported after operation；
If it is described forward direction specific frequency be greater than the resonance frequency, be dropping voltage characteristic, then the HF switch pipe Q9A and
Q10B is opened or HF switch the pipe Q10A and Q9B are open-minded, and service time moves back, and the turn-off time levels off to the high frequency and opens
Pipe Q3A or Q3B are closed, while reducing the time opened according to load current size；
If it is described forward direction specific frequency be less than the resonance frequency, be boosting characteristic, then the HF switch pipe Q9A and
Q10B is opened or HF switch the pipe Q10A and Q9B are open-minded, and service time moves back, and the turn-off time is towards off-centring so that preceding
Turn-off time afterwards levels off to symmetrically.
6. control method according to claim 5, it is characterised in that the first sub- translation circuit of control and the second son transformation electricity
Road enters working condition, under reverse operation state: corresponding with resonance frequency according to series-resonant inverting circuit work frequency
Relationship, and a reversed specific frequency is exported after controlling operation according to the needs of output voltage, if reversed specific frequency
It is then boosting characteristic greater than resonance frequency, if reversely specific frequency is dropping voltage characteristic less than resonance frequency.
7. control method according to claim 5 or 6, it is characterised in that: under reverse operation state:
When the HF switch pipe Q3A and the HF switch pipe Q3B are by positively biased, Xiang Suoshu HF switch pipe Q3A and the height
Frequency switching tube Q3B applies driving voltage to form synchronous rectification.
8. control method according to claim 7, it is characterised in that: the HF switch pipe Q4A and the HF switch
When pipe Q4B is by positively biased, Xiang Suoshu HF switch pipe Q4A and HF switch pipe Q4B application driving voltage are synchronous whole to be formed
Stream.
9. a kind of electrical energy changer, including signal processor, memory and one or more programs, one or more of journeys
Sequence is stored in the memory, and is configured to be executed by the signal processor, and described program includes for executing
Such as the instruction of the described in any item methods of claim 5-8.
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| CN201711025676.6A CN107733236B (en) | 2017-10-27 | 2017-10-27 | A kind of two-way Sofe Switch DC transfer circuit of wide scope and its control method |
| PCT/CN2017/113027 WO2019080245A1 (en) | 2017-10-27 | 2017-11-27 | Wide-range bidirectional soft switch dc conversion circuit and control method therefor |
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| CN201711025676.6A CN107733236B (en) | 2017-10-27 | 2017-10-27 | A kind of two-way Sofe Switch DC transfer circuit of wide scope and its control method |
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| CN110798069A (en) * | 2018-08-01 | 2020-02-14 | 中兴通讯股份有限公司 | DC converter, and control method and device for DC converter |
| CN109039121B (en) * | 2018-10-31 | 2024-05-10 | 南京熊猫电子股份有限公司 | High-frequency isolation type alternating current-direct current conversion circuit and control method thereof |
| CN110445387B (en) * | 2019-07-09 | 2021-08-31 | 中南大学 | Topological structure and control method of formation and grading power supply |
| CN110336483B (en) * | 2019-07-23 | 2024-04-19 | 深圳市三瑞电源有限公司 | Bidirectional inverter |
| TWI752360B (en) * | 2019-10-09 | 2022-01-11 | 盈正豫順電子股份有限公司 | Widened-voltage bidirectional isolated multi-level dc-dc converter and method thereof |
| CN115706509B (en) * | 2021-08-13 | 2023-10-27 | 中兴通讯股份有限公司 | Driving device and electronic apparatus |
| CN114172375B (en) * | 2022-02-10 | 2022-04-26 | 浙江大学杭州国际科创中心 | Direct current converter |
| CN114268213B (en) * | 2022-03-01 | 2022-05-10 | 常州索维尔电子科技有限公司 | Soft switching circuit, control method and control device based on LLC circuit |
| CN116614003B (en) * | 2023-07-20 | 2024-03-15 | 深圳市能效电气技术有限公司 | Isolated bidirectional DC/DC conversion circuit |
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| WO2016190031A1 (en) * | 2015-05-22 | 2016-12-01 | 日立オートモティブシステムズ株式会社 | Power conversion device and power supply system using same |
| CN107276418A (en) * | 2017-08-14 | 2017-10-20 | 深圳市保益新能电气有限公司 | A kind of wide scope Sofe Switch DC transfer circuit and its control method |
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| US8929109B2 (en) * | 2012-11-30 | 2015-01-06 | Chung-Shan Institute Of Science And Technology | Double-output half-bridge LLC serial resonant converter |
| CN104811047B (en) * | 2014-01-27 | 2019-03-15 | 山特电子（深圳）有限公司 | Two-way DC/DC converter and its control method |
| CN104158243B (en) * | 2014-08-05 | 2016-06-22 | 华为技术有限公司 | Uninterrupted power supply circuit and control method thereof |
| KR102421163B1 (en) * | 2015-05-19 | 2022-07-14 | 엘지이노텍 주식회사 | Bi-directional dc-dc converter |
| CN106936320B (en) * | 2017-05-11 | 2024-04-26 | 辽宁工程技术大学 | Interleaved parallel magnetic integrated bidirectional full-bridge LLC resonant converter |
| CN207368884U (en) * | 2017-10-27 | 2018-05-15 | 深圳市保益新能电气有限公司 | A kind of two-way Sofe Switch DC transfer circuit of wide scope |
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|---|---|---|---|---|
| WO2016190031A1 (en) * | 2015-05-22 | 2016-12-01 | 日立オートモティブシステムズ株式会社 | Power conversion device and power supply system using same |
| CN107276418A (en) * | 2017-08-14 | 2017-10-20 | 深圳市保益新能电气有限公司 | A kind of wide scope Sofe Switch DC transfer circuit and its control method |
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