CN109546860A - A kind of half-bridge-full-bridge Combined vertical current converter based on component multiplexing - Google Patents
A kind of half-bridge-full-bridge Combined vertical current converter based on component multiplexing Download PDFInfo
- Publication number
- CN109546860A CN109546860A CN201811292961.9A CN201811292961A CN109546860A CN 109546860 A CN109546860 A CN 109546860A CN 201811292961 A CN201811292961 A CN 201811292961A CN 109546860 A CN109546860 A CN 109546860A
- Authority
- CN
- China
- Prior art keywords
- bridge
- full
- capacitor
- rectifier diode
- side winding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- 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
-
- 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
- H02M3/33507—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 with automatic control of the output voltage or current, e.g. flyback converters
- H02M3/33523—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 with automatic control of the output voltage or current, e.g. flyback converters with galvanic isolation between input and output of both the power stage and the feedback loop
-
- 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
-
- 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)
- Dc-Dc Converters (AREA)
- Rectifiers (AREA)
Abstract
The embodiment of the invention discloses a kind of half-bridge-full-bridge Combined vertical current converters based on component multiplexing, on the basis of the full bridge structure formed including DC power supply, inverter bridge leg, isolating transformer, capacitance and rectification and filter circuit, introduce auxiliary transformer and derided capacitors, by being multiplexed inverter bridge leg, constitute half-bridge structure, the mode of full-bridge rectification and full-wave rectification is respectively adopted on secondary side in two kinds of structures, and tandem compound is carried out by being multiplexed one group of rectifier diode, realize the multiplexing of filter circuit.The DC converter has the characteristics that wide zero voltage switch range, aspergillus ficuum loss, current ripples are small, and circuit structure is simple, high conversion efficiency.
Description
Technical field
The present invention relates to power electronics field more particularly to a kind of half-bridge based on component multiplexing-full-bridge combinations
Formula DC converter.
Background technique
In power electronic equipment, the effect of DC converter is that direct current signal is become to another fixation or adjustable voltage
DC quantity, the research in relation to DC converter are similarly subjected to the extensive concern of domestic and international power electronic technique practitioner.According to straight
Quantity containing switching tube in current converter, can be divided into three kinds of single hose, double hose and full-bridge type topologys.Usually, directly
The power grade of current converter is directly proportional to switching tube quantity, and the full-bridge converter being made of four switching tubes has highest function
Rate grade, when using phase shifting control mode, switching tube can be realized Sofe Switch, and switching frequency is fixed, high-power in
Occasion is widely used.
Although various forms of DC converter architectural differences are larger, its composition can be divided into three parts: one is copped wave,
Using the switch controllability of power electronic devices, copped wave is carried out to the DC quantity of input, obtains the letter containing high-frequency AC components
Number；Two be rectification, is adjusted to AC portion, and the signal being superimposed containing DC component and high-frequency AC components is obtained；Three are
Filtering, filters out the high-frequency AC components in signal, realizes stable direct current output.Although various forms of DC converter topologys
Architectural difference is larger, but its Component units usually has certain regularity.The characteristic makes component between different topology
It is multiplexing into possibility, and then improves the operation characteristic of transformation system.
Traditional phase-shifted full-bridge converter in practical applications, the main problems are as follows: rectifier diode voltage
Oscillation, lagging leg soft-switching range is narrow, there are circulation loss, duty-cycle loss for primary side.Full-bridge converter switchs there are four containing
Pipe, contains two half-bridge bridge arms, based on the thought of component multiplexing, can use one of bridge arm and constitutes half-bridge topology,
Realize the multiplexing of switching tube.The secondary side of half-bridge and full-bridge topology can be combined realization to biography using different topological forms
The performance boost of system phase-shifted full-bridge converter.
Summary of the invention
The technical problem to be solved by the embodiment of the invention is that providing a kind of half-bridge-full-bridge based on component multiplexing
Combined vertical current converter.It can be achieved to widen switch tube zero voltage switch range, eliminate circulation loss, reduce output ripple, with
Improve the transfer efficiency of converter.
In order to solve the above-mentioned technical problem, the embodiment of the invention provides a kind of half-bridge-full-bridges based on component multiplexing
Combined vertical current converter, including first to fourth switching tube, first to third capacitor, the first, second isolating transformer, first
To the 4th rectifier diode, DC power supply；
First to fourth switching tube constitutes full-bridge circuit, and forward direction is connected in parallel on the DC power supply positive-negative output end, institute
State the positive-negative output end that the DC power supply is connected in parallel on after the first, second capacitor is connected；
First transformer includes a primary side winding and a vice-side winding, one end of primary side winding and described the
One, the tie point of third switching tube be connected, the other end is connected with one end of the third capacitor, one end of vice-side winding with it is described
The cathode of first rectifier diode, the anode of the third rectifier diode are connected, the other end and second rectifier diode
Cathode, the 4th rectifier diode anode be connected, the other end of the third capacitor and described second, the 4th switching tube
Tie point be connected；
Second transformer includes a primary side winding and two vice-side windings, one end of primary side winding and described the
Two, the tie point of the 4th switching tube is connected, and the other end is connected with the tie point of first, second capacitor, one of pair side
One end of winding is connected with the cathode of the third rectifier diode, two poles of one end of another vice-side winding and the 4th rectification
The cathode of pipe is connected, and the other end of two vice-side windings is connected directly.
It further, further include the 4th capacitor, filter inductance, the other end of two vice-side windings of second transformer
It is connect with one end of the filter inductance, the other end of the filter inductance is connect with one end of the 4th capacitor, as defeated
The other end of the anode of voltage out, the 4th capacitor is connected with the anode of first, second rectifier diode, as output
The negative terminal of voltage.
The implementation of the embodiments of the present invention has the following beneficial effects: being used in the primary side of converter with conventional full bridge converter
Identical phase shifting control mode introduces auxiliary transformer and derided capacitors, building by being multiplexed the lagging leg of full-bridge converter
Half-bridge topology out, half-bridge topology operate under full duty ratio operating condition, ensure that the continuity of former secondary side power transfer, can
It eliminates primary side circulation loss, reduce output ripple, while the exciting current by increasing auxiliary transformer, lag can be widened and opened
The soft-switching range of pipe is closed, and exciting current flows only through lagging leg, not will lead to excessive conduction loss.
On the secondary side of converter, full-bridge topology uses bridge rectifier structure, and the half-bridge topology of introducing uses full-wave rectification knot
Structure, two rectifiers carry out tandem compound and are multiplexed one group of rectifier diode and output filter, to reduce additional component
Quantity, the power density for improving converter.
Detailed description of the invention
Fig. 1 is integrated circuit structural schematic diagram of the invention；
Wherein: VinFor DC power supply, Q1、Q2、Q3、Q4Respectively first to fourth switching tube, C1、C2、Cb、CoRespectively
One to the 4th capacitor, T1、T2Respectively the first, second transformer, np、mpThe respectively armature winding of the first, second transformer, ns
For the vice-side winding of the first transformer, ms1、ms2The respectively vice-side winding of the second transformer, D1、D2、D3、D4Respectively first to
4th rectifier diode, LoFor filter inductance, R is load resistance.
Fig. 2 is equivalent circuit figure structure schematic representation of the invention；
Fig. 3 is the key operation waveforms schematic diagram for Fig. 2 that the present invention is supplied to；
Fig. 4-10 is equivalent circuit diagram of the Fig. 2 of the invention being supplied under different modalities.
Main physical amount in above-mentioned attached drawing are as follows: D is duty ratio, TsIt is switch periods, load current Io, n T1、T2
The ratio between transformer secondary and primary side the number of turns, LklFor T1Leakage inductance, Lk2For T2Leakage inductance, LmFor T2Magnetizing inductance, C1And C2It is equivalent
For constant voltage source 0.5Vin, filter inductance is equivalent to constant current source Io。
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with attached drawing
Step ground detailed description.
The circuit connection diagram of the invention patent is as shown in Figure 1, a kind of half-bridge-full-bridge group based on component multiplexing
Box-like DC converter, including first to fourth switching tube (Q1~ Q4), the first and second isolating transformer (T1、T2), first to
4th rectifier diode (D1~ D4), first to fourth capacitor (C1、C2、Cb、Co), DC power supply (Vin) and filter inductance (Lo),
Transformer T1Including primary side winding npWith vice-side winding ns, transformer T2Including primary side winding mpWith vice-side winding ms1、ms2。
First to fourth switching tube constitutes full-bridge circuit, and forward direction is connected in parallel on DC power supply positive-negative output end, and first, the
Be connected in parallel on the positive-negative output end of DC power supply after the series connection of two capacitors, the first transformer include a primary side winding and a secondary side around
Group, one end of primary side winding are connected with the tie point of first, third switching tube, and the other end is connected with one end of third capacitor, secondary
One end of side winding is connected with the anode of the cathode of the first rectifier diode, third rectifier diode, the other end and the second rectification
The cathode of diode, the anode of the 4th rectifier diode are connected, the connection of the other end of third capacitor and the second, the 4th switching tube
Point is connected, and the second transformer includes a primary side winding and two vice-side windings, and one end of primary side winding is switched with the second, the 4th
The tie point of pipe is connected, and the other end is connected with the tie point of the first, second capacitor, one end of one of vice-side winding and third
The cathode of rectifier diode is connected, and one end of another vice-side winding is connected with the cathode of the 4th rectifier diode, vice-side winding
The other end is connected directly and with the connection of one end of filter inductance, and the other end of filter inductance is connect with one end of the 4th capacitor, even
Contact is the anode of output voltage, and the other end of the 4th capacitor is connected with the anode of the first, second rectifier diode, as output
The negative terminal of voltage.
In a specific embodiment of the invention patent, Q1、Q3Constitute leading-bridge, Q2、Q4Lagging leg is constituted, with
Transformer T1, capacitance CbConstitute full-bridge topology, Q2、Q4、C1、C2And T2Half-bridge topology is constituted, when ignoring dead time, each
The duty ratio of switching tube is 0.5, by adjusting the phase shifting angle between two bridge arms, the adjusting to output voltage is realized, secondary
Side, full-bridge topology use bridge rectifier structure, and half-bridge topology uses full-wave rectification structure, and two groups of rectifiers share D2、D4Diode
And output filter, such as attached drawing 1.
The equivalent circuit simplified below with attached drawing 2, describes concrete operating principle of the invention in conjunction with 3 ~ 10 of attached drawing.By attached
Entire converter has 14 kinds of switch mode in a switch periods known to Fig. 3, is [t respectively0~ t1]、[t1~ t2]、[t2~ t3]、
[t3~ t4]、[t4~ t5]、[t5~ t6]、[t6~ t7]、[t7~ t8]、[t8~ t9]、[t9~ t10]、[t10~ t11]、[t11~
t12]、[t12~ t13]、[t13~ t14], wherein [t0~ t7] it is first half cycle, [t7~ t14] it is the later half period, below to respectively opening
The working condition for closing mode is made a concrete analysis of.
To simplify the analysis, make the following assumptions: 1) all devices are ideal component；2) parasitic components of switching tube only consider
Body diode and junction capacity；3) ignore T1The magnetizing inductance of transformer, leakage inductance Lkl；4)T2Magnetizing inductance be Lm, leakage inductance is
Lk2；5) output inductor LoRegard constant-current source, capacitor C as1And C2It is equivalent to constant pressure source.
Switch 1 [t of mode0~ t1] (corresponding to attached drawing 4): Q1、Q4、D2、D3Conducting, the period are duty ratio period, output
Filter inductance can be mapped to primary side, and primary current is approximately steady state value, CbVoltage linear increases.
Switch 2 [t of mode1~ t2] (corresponding to attached drawing 5): in t1Moment, Q1Shutdown, Q1、Q3Junction capacity pass through constant-current source
Linear charge and discharge, leading arm mid-point voltage, rectified voltage, T1Transformer primary secondary voltage starts linear decline.
Switch 3 [t of mode2~ t3] (corresponding to attached drawing 6): in t2Moment, leading arm mid-point voltage, T1Transformer primary pair side
Voltage drops to 0, D1Conducting, D1、D2Start the change of current, T1Secondary windings be short-circuited.In t3Moment, vleaDrop to 0, Q3Body
Diode current flow, Q3It is open-minded that no-voltage may be implemented, in period CbVoltage approximately constant is applied to Lk1On, primary current ipLine
Property decline, in t4Moment, primary current drop to zero, while D1、D2The change of current terminates, D2Shutdown.
Switch 4 [t of mode3~ t4] (corresponding to attached drawing 7): within the period, full-bridge topology primary current ipIt is zero, D1、D3
It is held on, which is known as off-air comparing the period.
Switch 5 [t of mode4~ t5] (corresponding to attached drawing 8): in t4Moment, Q4Shutdown, lagging leg mid-point voltage linear rise,
D4Both ends backward voltage is gradually reduced.
Switch 6 [t of mode5~ t6] (corresponding to attached drawing 9): in t5Moment, D4Both end voltage drops to zero, T1With T2Secondary side around
Group is in parallel, and junction capacity and leakage inductance start resonance, and lagging leg mid-point voltage resonance rises, in t6Moment, on lagging leg mid-point voltage
It is raised to Vin, Q2Body diode is begun to turn on, therefore, Q2It is open-minded to can be realized no-voltage.
Switch 7 [t of mode6~ t7] (corresponding to attached drawing 10): D4Electric current is gradually increased, D3Electric current is gradually reduced, in t7Moment
D3Electric current drops to zero, and converter enters the later half period.
Later half period [t7~ t14] working principle and first half cycle [t0~ t7] essentially identical, only electric current, voltage negative side
To variation, it is not repeated to describe.
The above-mentioned course of work is summarized it is found that all switching tubes of the converter can realize zero voltage switch, half-bridge is opened up
The operation of earthenware money box duty ratio ensure that the continuity of former secondary side power transfer, is conducive to reduce primary side circulation loss and exports electric current
Ripple, while exciting current only passes through lagging leg, therefore, the increase of exciting current can widen the soft-switching range of lag pipe,
But not lead to dramatically increasing for conduction loss.
Above disclosed is only a preferred embodiment of the present invention, cannot limit the power of the present invention with this certainly
Sharp range, therefore equivalent changes made in accordance with the claims of the present invention, are still within the scope of the present invention.
Claims (2)
1. a kind of half-bridge-full-bridge Combined vertical current converter based on component multiplexing, which is characterized in that including first to the
Four switching tubes, first to third capacitor, the first, second isolating transformer, first to fourth rectifier diode, DC power supply；
First to fourth switching tube constitutes full-bridge circuit, and forward direction is connected in parallel on the DC power supply positive-negative output end, and described the
One, the positive-negative output end of the DC power supply is connected in parallel on after the series connection of the second capacitor；
First transformer includes a primary side winding and a vice-side winding, one end of primary side winding with described first, the
The tie point of three switching tubes is connected, and the other end is connected with one end of the third capacitor, one end of vice-side winding and described first
The cathode of rectifier diode, the anode of the third rectifier diode are connected, the yin of the other end and second rectifier diode
Pole, the anode of the 4th rectifier diode are connected, the company of the other end of the third capacitor and described second, the 4th switching tube
Contact is connected；
Second transformer includes a primary side winding and two vice-side windings, one end of primary side winding with described second, the
The tie point of four switching tubes is connected, and the other end is connected with the tie point of first, second capacitor, one of vice-side winding
One end is connected with the cathode of the third rectifier diode, the yin of one end of another vice-side winding and the 4th rectifier diode
Extremely it is connected, the other end of two vice-side windings is connected directly.
2. half-bridge-full-bridge Combined vertical current converter according to claim 1 based on component multiplexing, feature exist
In, it further include the 4th capacitor, filter inductance, the other end and the filter inductance of two vice-side windings of second transformer
One end connection, the other end of the filter inductance is connect with one end of the 4th capacitor, as the anode of output voltage, institute
The other end for stating the 4th capacitor is connected with the anode of first, second rectifier diode, the negative terminal as output voltage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811292961.9A CN109546860B (en) | 2018-10-31 | 2018-10-31 | Half-bridge-full-bridge combined direct current converter based on component multiplexing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811292961.9A CN109546860B (en) | 2018-10-31 | 2018-10-31 | Half-bridge-full-bridge combined direct current converter based on component multiplexing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109546860A true CN109546860A (en) | 2019-03-29 |
| CN109546860B CN109546860B (en) | 2020-03-20 |
Family
ID=65846286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811292961.9A Active CN109546860B (en) | 2018-10-31 | 2018-10-31 | Half-bridge-full-bridge combined direct current converter based on component multiplexing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109546860B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114900047A (en) * | 2022-04-20 | 2022-08-12 | 汕头大学 | Hybrid three-level direct current converter based on double-transformer structure |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100828179B1 (en) * | 2006-08-29 | 2008-05-08 | 한국전기연구원 | multi-phase flyback and forward synchronous rectifier |
| CN101202507A (en) * | 2007-12-11 | 2008-06-18 | 株洲南车时代电气股份有限公司 | New type phase shifting full bridge soft switch converter |
| CN101604917A (en) * | 2009-06-24 | 2009-12-16 | 南京航空航天大学 | Adopt the Zero-voltage switch full-bridge direct current converter of passive auxiliary network |
| US20150256087A1 (en) * | 2013-11-07 | 2015-09-10 | Ionel Jitaru | Soft Switching Converter with Dual Transformer by Steering the Magnetizing Current |
| CN107493015A (en) * | 2017-09-14 | 2017-12-19 | 北京理工大学 | A kind of two-way DC DC converters and its Poewr control method based on dual transformer structure |
-
2018
- 2018-10-31 CN CN201811292961.9A patent/CN109546860B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100828179B1 (en) * | 2006-08-29 | 2008-05-08 | 한국전기연구원 | multi-phase flyback and forward synchronous rectifier |
| CN101202507A (en) * | 2007-12-11 | 2008-06-18 | 株洲南车时代电气股份有限公司 | New type phase shifting full bridge soft switch converter |
| CN101604917A (en) * | 2009-06-24 | 2009-12-16 | 南京航空航天大学 | Adopt the Zero-voltage switch full-bridge direct current converter of passive auxiliary network |
| US20150256087A1 (en) * | 2013-11-07 | 2015-09-10 | Ionel Jitaru | Soft Switching Converter with Dual Transformer by Steering the Magnetizing Current |
| CN107493015A (en) * | 2017-09-14 | 2017-12-19 | 北京理工大学 | A kind of two-way DC DC converters and its Poewr control method based on dual transformer structure |
Non-Patent Citations (1)
| Title |
|---|
| YOUNG-DO KIM ET AL.: "Wide-Range ZVS Phase-shift Full-Bridge Converter With Reduced Conduction Loss Caused by Circulating Current", 《IEEE TRANSACTIONS ON POWER ELECTRONICS》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114900047A (en) * | 2022-04-20 | 2022-08-12 | 汕头大学 | Hybrid three-level direct current converter based on double-transformer structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109546860B (en) | 2020-03-20 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106655793B (en) | A kind of common resonant inductive type wide input range LLC resonant converter | |
| CN106685231B (en) | A kind of primary side clamper type soft switch full bridge converter and its asymmetric control method | |
| CN103312171B (en) | Isolated soft switching double tube positive exciting resonance DC/DC circuit | |
| CN108448913A (en) | A kind of isolated form AC-DC converter of the single stage type based on crisscross parallel non-bridge PFC circuits and LLC resonance | |
| CN101854120B (en) | High-efficiency multifunctional flyback converter | |
| CN106505866B (en) | A kind of three Level Full Bridge DC converters | |
| CN101860216B (en) | Inductively coupled current doubler rectifying mode full-bridge DC converter | |
| CN103887976B (en) | The imported resonant type soft-switch DC/DC converters of current source | |
| CN107800312B (en) | A kind of output ripple and low pfc converter | |
| CN103441680B (en) | A kind of soft switching full-bridge direct-current converter reducing circulation loss | |
| CN2917083Y (en) | Normal/reverse excitation combined DC/DC isolated transformer | |
| CN109742965A (en) | A kind of high-frequency isolation type AC-DC converter of single-phase crisscross parallel three level resonance formula | |
| CN106100344A (en) | A kind of LLC resonant converter with liter high voltage gain | |
| CN105515417A (en) | Double-output single-phase PFC convertor and combined type power conversion system and control method thereof | |
| CN101604916B (en) | Zero voltage switch full bridge DC converter based on pi-type auxiliary network | |
| CN112260531B (en) | Step-down PFC circuit based on resonant switch capacitor converter | |
| CN109245547B (en) | A kind of mixed-rectification formula Zero-voltage switch full-bridge direct current converter | |
| CN115065230B (en) | Three-phase bridgeless SEPIC type PFC converter | |
| WO2013075401A1 (en) | Power supply circuit | |
| CN104638932A (en) | Multi-resonant converter | |
| CN109302078B (en) | DC-DC switching power supply based on synchronous rectification mode | |
| CN109286307A (en) | A kind of Forward- flyback power factor correcting | |
| CN110572039A (en) | Novel full-bridge direct-current converter based on current-doubling rectifier | |
| CN102412740B (en) | Multiphase AC-DC (alternating current-direct current) isolating conversion circuit and multiphase AC-DC power supply | |
| CN106787756B (en) | A kind of CL-FT-CL resonance DC converter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |