CN105896996A - Novel variable-structure bidirectional active full-bridge resonant converter - Google Patents
Novel variable-structure bidirectional active full-bridge resonant converter Download PDFInfo
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- CN105896996A CN105896996A CN201610446782.0A CN201610446782A CN105896996A CN 105896996 A CN105896996 A CN 105896996A CN 201610446782 A CN201610446782 A CN 201610446782A CN 105896996 A CN105896996 A CN 105896996A
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- switching tube
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- transformator
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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
- H02M3/22—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
- H02M3/33569—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 several active switching elements
- H02M3/33576—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 several active switching elements having at least one active switching element at the secondary side of an isolation transformer
- H02M3/33584—Bidirectional converters
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/02—Conversion of ac power input into dc power output without possibility of reversal
- H02M7/04—Conversion of ac power input into dc power output without possibility of reversal by static converters
- H02M7/12—Conversion of ac power input into dc power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/21—Conversion of ac power input into dc power output without 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
- H02M7/217—Conversion of ac power input into dc power output without 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
- H02M7/219—Conversion of ac power input into dc power output without 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 in a bridge configuration
-
- 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
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/44—Conversion of dc power input into ac power output without possibility of reversal by static converters
- H02M7/48—Conversion of dc power input into ac power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of dc power input into ac power output without 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
- H02M7/537—Conversion of dc power input into ac power output without 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, e.g. single switched pulse inverters
- H02M7/5387—Conversion of dc power input into ac power output without 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, e.g. single switched pulse inverters in a bridge configuration
Abstract
The invention discloses a novel variable-structure bidirectional active full-bridge resonant converter. On the basis of a bidirectional active full-bridge resonant converter, the novel variable-structure bidirectional active full-bridge resonant converter disclosed by the invention is realized through series connection of two transformer windings at the primary sides of transformers and parallel connection of two full-bridge output ends at the secondary sides of the transformers. According to the novel variable-structure bidirectional active full-bridge resonant converter disclosed by the invention, through control of switching tubes K1 and K2, a transformer primary side (transformer secondary side) circuit structure can be realized flexibly; under the condition that the switching frequency adjustment range is not changed, the transformer secondary side voltage range is effectively changed, the loss of the whole circuit is reduced, and thus the circuit has relatively high conversion efficiency on an occasion of a relatively high voltage transformation ratio.
Description
Technical field
The present invention relates to a kind of novel power electronics interface converter technique field, double particularly to a kind of isolated form
To active full-bridge resonant transform circuit, belong to power electronics and electrical technology field.
Background technology
In traditional bidirectional active full-bridge circuit, as in figure 2 it is shown, transformer primary side (transformator pair
Limit) voltage range is narrow and full-bridge circuit conversion efficiency is low.The output of traditional controlled resonant converter is to pass through
The switching frequency changing switching tube realizes changing output voltage, due to along with the rising of output voltage, switching device
Operating frequency adjusting range also become big, bring the switching loss on device to increase therewith, make at the bottom of system effectiveness
Under.And in the biggest occasion of bidirectional active full-bridge controlled resonant converter two ends pressure reduction, transformer primary side switching tube needs
Bear bigger voltage, need the switching tube selecting pressure grade high, loss also to increase；Transformer secondary is opened
The electric current that pass pipe bears is relatively big, causes switching tube heating serious, causes substantial amounts of loss.The most existing two-way
Active full-bridge resonance topological exists clearly disadvantageous in the occasion of high transformation ratio.
Summary of the invention
It is an object of the invention to overcome existing bidirectional active full-bridge resonant transform circuit to change in the bigger occasion of transformation ratio
The problem that efficiency is low, transformer primary side (transformer secondary) voltage range is narrow, it is provided that one changes change flexibly
The depressor primary side winding number of turn and the circuit topology of transformer secondary output circuit structure, reduce circuit loss, improves
Circuit efficiency, improves transformer primary side (transformer secondary) voltage range.
For solving the problems referred to above, the solution that the present invention provides is:
A kind of novel structure changes bidirectional active full-bridge controlled resonant converter of the present invention, becomes based on bidirectional active full-bridge resonance
On the basis of parallel operation, by series connection and two, the transformator pair side full-bridge of two Transformer Winding of transformer primary avris
The parallel connection of outfan realizes.
A kind of novel structure changes bidirectional active full-bridge controlled resonant converter, including the first switching tube S1, second switch
Pipe S2, the 3rd switching tube S3, the 4th switching tube S4, the 5th switching tube Q1, the 6th switching tube Q2, the 7th
Switching tube Q3, the 8th switching tube Q4, the 9th switching tube K1, the tenth switching tube K2, the 11st switching tube
Q5, twelvemo close pipe Q6, the 13rd switching tube Q7, the 14th switching tube Q8, the first transformator T1, the
Two transformator T2, nonpolar electric capacity C1, polar capacitor C2, the first inductance Lr1, the second inductance Lr2And power supply
V1；
The drain electrode of the first described switching tube S1 connects with the positive pole of the drain electrode of the 3rd switching tube S3, power supply V1
Connecing, the negative pole of the source electrode of second switch pipe S2 and the source electrode of the 4th switching tube S4, power supply V1 connects, and first
The source electrode of switching tube S1, the drain electrode of second switch pipe S2, the first inductance Lr1One end connect, the first inductance
Lr1The other end be connected with one end of nonpolar electric capacity C1, the other end of nonpolar electric capacity C1 and the first transformation
One end of the former avris of device T1 connects, the other end of the first former avris of transformator T1 and the second inductance Lr2One
End, the drain electrode of the 9th switching tube K1 connect, the second inductance Lr2The other end and the second former avris of transformator T2
One end connect, the 9th switching tube other end, the source electrode of the 3rd switching tube S3, the leakage of the 4th switching tube S4
Pole connects, one end of the first transformator T1 secondary side and the source electrode of the 5th switching tube Q1, the 6th switching tube Q2
Drain electrode connect, the other end of the first transformator T1 secondary side and the source electrode of the 7th switching tube Q3, the 8th switch
The drain electrode of pipe Q4 connects, the drain electrode of the 5th switching tube Q1, the drain electrode of the 7th switching tube Q3, the 11st switch
The drain electrode of pipe Q5, the drain electrode of the 13rd switching tube Q7, the positive pole of polar capacitor C2 connect and as transformator
Secondary side positive source；The source electrode of the 6th switching tube Q2 and the source electrode of the 8th switching tube Q4, polar capacitor C2
Negative pole, twelvemo closes the source electrode of pipe Q6, the source electrode of the 14th switching tube Q8 connects and secondary as transformator
Avris power cathode, one end of the second transformator T2 secondary side and the source electrode of the 11st switching tube Q5, the 12nd
The drain electrode of switching tube Q6 connects, the other end of the second transformator T2 secondary side and the source of the 13rd switching tube Q7
Pole, the drain electrode of the 14th switching tube Q8 connect.
Compared with existing bidirectional active full-bridge controlled resonant converter, the present invention passes through switch tube K1, the control of K2
System, can realize transformer primary side (transformer secondary) circuit structure flexibly, adjusts not changing switching frequency
In the case of scope, effective change transformer secondary side voltage range, reduce the loss of integrated circuit, make
Obtain this circuit and can have higher conversion efficiency under the occasion that voltage change ratio is bigger.
Accompanying drawing explanation
Fig. 1 is circuit theory diagrams of the present invention；
Fig. 2 is tradition isolation type bidirectional active full-bridge resonant transform circuit schematic diagram.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is the schematic diagram of the present invention, by switch compared with full-bridge converter active with existing isolation type bidirectional
Pipe K1, the control of switching tube K2, it is achieved the series connection of two transformer primary side windings and two, transformer secondary side
The parallel connection of full-bridge outfan.
In this patent, involved switching tube refers to all wholly-controled device, but in this patent explanation to circuit with
It is described as a example by metal-oxide-semiconductor.
A kind of novel structure changes bidirectional active full-bridge controlled resonant converter, including the first switching tube S1, second switch
Pipe S2, the 3rd switching tube S3, the 4th switching tube S4, the 5th switching tube Q1, the 6th switching tube Q2, the 7th
Switching tube Q3, the 8th switching tube Q4, the 9th switching tube K1, the tenth switching tube K2, the 11st switching tube
Q5, twelvemo close pipe Q6, the 13rd switching tube Q7, the 14th switching tube Q8, the first transformator T1, the
Two transformator T2, nonpolar electric capacity C1, polar capacitor C2, the first inductance Lr1, the second inductance Lr2And power supply
V1；
The drain electrode of the first described switching tube S1 connects with the positive pole of the drain electrode of the 3rd switching tube S3, power supply V1
Connecing, the negative pole of the source electrode of second switch pipe S2 and the source electrode of the 4th switching tube S4, power supply V1 connects, and first
The source electrode of switching tube S1, the drain electrode of second switch pipe S2, the first inductance Lr1One end connect, the first inductance
Lr1The other end be connected with one end of nonpolar electric capacity C1, the other end of nonpolar electric capacity C1 and the first transformation
One end of the former avris of device T1 connects, the other end of the first former avris of transformator T1 and the second inductance Lr2One
End, the drain electrode of the 9th switching tube K1 connect, the second inductance Lr2The other end and the second former avris of transformator T2
One end connect, the 9th switching tube other end, the source electrode of the 3rd switching tube S3, the leakage of the 4th switching tube S4
Pole connects, one end of the first transformator T1 secondary side and the source electrode of the 5th switching tube Q1, the 6th switching tube Q2
Drain electrode connect, the other end of the first transformator T1 secondary side and the source electrode of the 7th switching tube Q3, the 8th switch
The drain electrode of pipe Q4 connects, the drain electrode of the 5th switching tube Q1, the drain electrode of the 7th switching tube Q3, the 11st switch
The drain electrode of pipe Q5, the drain electrode of the 13rd switching tube Q7, the positive pole of polar capacitor C2 connect and as transformator
Secondary side positive source；The source electrode of the 6th switching tube Q2 and the source electrode of the 8th switching tube Q4, polar capacitor C2
Negative pole, twelvemo closes the source electrode of pipe Q6, the source electrode of the 14th switching tube Q8 connects and secondary as transformator
Avris power cathode, one end of the second transformator T2 secondary side and the source electrode of the 11st switching tube Q5, the 12nd
The drain electrode of switching tube Q6 connects, the other end of the second transformator T2 secondary side and the source of the 13rd switching tube Q7
Pole, the drain electrode of the 14th switching tube Q8 connect.
When transformer secondary (transformer primary side) voltage range needed relatively big (little), the 9th switching tube
K1, the tenth switching tube K2 Guan Bi, the first transformator T1, the first switching tube S1, second switch pipe S2, the
Three switching tube S3, the 4th switching tube S4, the 5th switching tube Q1, the 6th switching tube Q2, the 7th switching tube
Q3, the 8th switching tube Q4 access circuit, and the second transformator T2, the 11st switching tube Q5, twelvemo close pipe
Q6, the 13rd switching tube Q7, the 14th switching tube Q8 excise from circuit, and this circuit has reformed into existing
Isolation type bidirectional active full-bridge resonant transform circuit, by changing switching tube the first switching tube S1, second switch
Pipe S2, the 3rd switching tube S3, the 4th switching tube S4 switching frequency realize transformer secondary output voltage range
Control；
When transformer secondary (transformer primary side) voltage range less (greatly) needed, the 9th switching tube
K1, the tenth switching tube K2 disconnect, the first transformator T1, the second transformator T2, the first switching tube S1, the
Two switching tube S2, the 3rd switching tube S3, the 4th switching tube S4, the 5th switching tube Q1, the 6th switching tube
Q2, the 7th switching tube Q3, the 8th switching tube Q4, the 11st switching tube Q5, twelvemo close pipe Q6, the tenth
Three switching tube Q7, the 14th switching tube Q8 all access circuit, transformer secondary side the 5th switching tube Q1,
Six switching tube Q2, the 7th switching tube Q3, the 8th switching tube Q4 and the 11st switching tube Q5, twelvemo are closed
Pipe Q6, the 13rd switching tube Q7, the 14th switching tube Q8 break-make are to maintain synchronization, due to the 11st switching tube
Q5, twelvemo pass pipe Q6, the 13rd switching tube Q7, the access of the 14th switching tube Q8 make transformer secondary
Output voltage range reduces one times；
This circuit can also realize the transmitted in both directions of energy, when energy from transformer primary side effluent to transformer secondary
During side, the first switching tube S1, second switch pipe S2, the 3rd switching tube S3, the 4th switching tube S4 is driven to enter
Row full-bridge inverting, meanwhile, drive the 5th switching tube Q1, the 6th switching tube Q2, the 7th switching tube Q3, the 8th
Switching tube Q4, the 11st switching tube Q5, twelvemo close pipe Q6, the 13rd switching tube Q7, the 14th switch
Pipe Q8 carries out full-bridge rectification；When energy from transformer secondary effluent to transformer primary avris time, drive and the 5th open
Close pipe Q1, the 6th switching tube Q2, the 7th switching tube Q3, the 8th switching tube Q4, the 11st switching tube Q5,
Twelvemo closes pipe Q6, the 13rd switching tube Q7, the 14th switching tube Q8 carry out full-bridge inverting, same with this
Time, drive the first switching tube S1, second switch pipe S2, the 3rd switching tube S3, the 4th switching tube S4 to carry out
Full-bridge rectification；
It should be noted that, the specific term used when some feature or the scheme of the present invention is described should not be used
This term is here redefined to limit some certain features of the present invention relevant to this term, spy in representing
Levy or scheme.In a word, the term used in appended claims should be construed to the present invention
It is limited to the specific embodiment disclosed in description, unless above-mentioned detailed description part explicitly defines these arts
Language.Therefore, the actual range of the present invention not only includes the disclosed embodiments, be additionally included in claims it
Under be practiced or carried out all equivalents of the present invention.
Claims (2)
1. a novel structure changes bidirectional active full-bridge controlled resonant converter, it is characterised in that: have based on two-way
On the basis of the full-bridge controlled resonant converter of source, by series connection and the transformation of two Transformer Winding of transformer primary avris
The parallel connection of two the full-bridge outfans in device pair side realizes.
One the most according to claim 1 novel structure changes bidirectional active full-bridge controlled resonant converter, its
Feature is being: on the basis of bidirectional active full-bridge controlled resonant converter, by transformer primary avris two
The parallel connection of two full-bridge outfans of series connection and transformator pair side of Transformer Winding realizes, and specifically includes first
Switching tube S1, second switch pipe S2, the 3rd switching tube S3, the 4th switching tube S4, the 5th switching tube Q1,
6th switching tube Q2, the 7th switching tube Q3, the 8th switching tube Q4, the 9th switching tube K1, the tenth switching tube
K2, the 11st switching tube Q5, twelvemo close pipe Q6, the 13rd switching tube Q7, the 14th switching tube Q8,
First transformator T1, the second transformator T2, nonpolar electric capacity C1, polar capacitor C2, the first inductance Lr1、
Second inductance Lr2With power supply V1；
The drain electrode of the first described switching tube S1 connects with the positive pole of the drain electrode of the 3rd switching tube S3, power supply V1
Connecing, the negative pole of the source electrode of second switch pipe S2 and the source electrode of the 4th switching tube S4, power supply V1 connects, the
The source electrode of one switching tube S1, the drain electrode of second switch pipe S2, the first inductance Lr1One end connect, first
Inductance Lr1The other end be connected with one end of nonpolar electric capacity C1, the other end of nonpolar electric capacity C1 and
One end of the one former avris of transformator T1 connects, the other end of the first former avris of transformator T1 and the second inductance Lr2
One end, the 9th switching tube K1 drain electrode connect, the second inductance Lr2The other end and the second transformator T2
One end of former avris connects, the 9th switching tube other end, the source electrode of the 3rd switching tube S3, the 4th switching tube
The drain electrode of S4 connects, and one end of the first transformator T1 secondary side and the source electrode of the 5th switching tube Q1, the 6th opens
The drain electrode closing pipe Q2 connects, the other end of the first transformator T1 secondary side and the source electrode of the 7th switching tube Q3,
The drain electrode of the 8th switching tube Q4 connects, the drain electrode of the 5th switching tube Q1, the drain electrode of the 7th switching tube Q3,
The drain electrode of the 11st switching tube Q5, the drain electrode of the 13rd switching tube Q7, the positive pole of polar capacitor C2 connect
And as transformer secondary side positive source；The source electrode of the 6th switching tube Q2 and the source electrode of the 8th switching tube Q4,
The negative pole of polar capacitor C2, twelvemo close the source electrode of pipe Q6, the source electrode of the 14th switching tube Q8 connects
And as transformer secondary side power cathode, one end of the second transformator T2 secondary side and the 11st switching tube
The source electrode of Q5, twelvemo are closed the drain electrode of pipe Q6 and are connected, the other end of the second transformator T2 secondary side and the
The source electrode of 13 switching tube Q7, the drain electrode of the 14th switching tube Q8 connect.
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| CN201610446782.0A CN105896996B (en) | 2016-06-20 | 2016-06-20 | A kind of novel structure changes bidirectional active full-bridge controlled resonant converter |
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| CN201610446782.0A CN105896996B (en) | 2016-06-20 | 2016-06-20 | A kind of novel structure changes bidirectional active full-bridge controlled resonant converter |
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| CN105896996A true CN105896996A (en) | 2016-08-24 |
| CN105896996B CN105896996B (en) | 2018-07-06 |
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Cited By (3)
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| CN106961222A (en) * | 2017-04-14 | 2017-07-18 | 武汉中原电子集团有限公司 | A kind of DC DC controlled resonant converters |
| WO2021145666A1 (en) * | 2020-01-14 | 2021-07-22 | Lg Electronics Inc. | Power converting device, and vehicle including the same |
| CN116526862A (en) * | 2023-06-29 | 2023-08-01 | 广东省洛仑兹技术股份有限公司 | Bidirectional converter, driving method thereof and switching power supply |
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| CN116526862A (en) * | 2023-06-29 | 2023-08-01 | 广东省洛仑兹技术股份有限公司 | Bidirectional converter, driving method thereof and switching power supply |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105896996B (en) | 2018-07-06 |
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