CN206164390U - Integrated two pressure reducing type half -bridge dc -to -ac converters of no circulation magnetism - Google Patents
Integrated two pressure reducing type half -bridge dc -to -ac converters of no circulation magnetism Download PDFInfo
- Publication number
- CN206164390U CN206164390U CN201621151750.XU CN201621151750U CN206164390U CN 206164390 U CN206164390 U CN 206164390U CN 201621151750 U CN201621151750 U CN 201621151750U CN 206164390 U CN206164390 U CN 206164390U
- Authority
- CN
- China
- Prior art keywords
- diode
- switch pipe
- magnetism
- inductance
- bridge
- 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.)
- Active
Links
Abstract
The utility model relates to an integrated two pressure reducing type half -bridge dc -to -ac converters of the magnetism of no circulation, be coupled to same magnetic core with two filter inductor's winding on, reduced the volume and the loss of magnetism spare effectively, and the diode of respectively having established ties on every switch tube, switch body diode misleads when preventing the inductive current zero passage to realize no circulation mode. The utility model provides an integrated two pressure reducing type half -bridge dc -to -ac converters of the magnetism of no circulation, improves and innovates the two pressure reducing type half -bridge dc -to -ac converters of tradition, outside having kept the traditional pair of original advantage of pressure reducing type half -bridge dc -to -ac converter, has reduced volume and the weight of exporting filter inductor simultaneously to reduce the volume and the weight of whole dc -to -ac converter, realized no circulation mode in addition, guaranteed the reliability of system.
Description
Technical field
This utility model is related to a kind of inverter, particularly a kind of magnetism-integrated double decompression semi-bridge converter of aspergillus ficuum.
Background technology
With the development of Power Electronic Technique, the power electronics that unidirectional current is changed into alternating current is become by inverter as a kind of
Changing device, it is defeated in new energy grid-connected power system, frequency conversion and speed regulation of AC motor system, uninterruptible power system, flexible direct current
The numerous areas such as electric system play pivotal role.Traditional dual buck half bridge inverter is due to without bridge arm direct pass, switching tube
Need not arrange Dead Time, have independent fly-wheel diode can be optimized design, reliability is high, output waveform quality is good,
The advantages of efficiency high, is widely used, but it needs two solely during traditional dual buck half bridge inverter normal work
Vertical output inductor causes the volume and weight of inverter larger, and integrated magnetic can effectively reduce filter inductance
Volume, but while can also make circuit produce circulation.Existing integrated magnetic mainly includes three kinds shown in Fig. 2,3,4, it
Have a common defect to be exactly not account for when the corresponding independent fly-wheel diode normal work of switching tube, inductive current
Make the body diode of switching tube mislead near zero passage, therefore or circulation can be produced.The integrated skill of four winding magnetic of bimag of Fig. 3
Art is difficult to reach coil turn original in practical situations both, and the working condition of two magnetic cores is with the change of temperature
Change also is difficult to reach unanimously.Fig. 4 is for EE type magnetic cores, although improve the utilization rate of magnetic core, but it is difficult to will under practical situation
Winding is evenly distributed on the side column of two magnetic cores, and the model of required magnetic core increases inreal reduction inductance
Volume and weight.The utility model proposes a kind of aspergillus ficuum magnetism-integrated double decompression semi-bridge converter, had both remained traditional double
The advantage of decompression semi-bridge converter, reduces the volume and weight of filter inductance while realizing aspergillus ficuum mode of operation.
The content of the invention
The purpose of this utility model is to provide a kind of magnetism-integrated double decompression semi-bridge converter of aspergillus ficuum, existing to overcome
There is defect present in technology.
For achieving the above object, the technical solution of the utility model is：A kind of aspergillus ficuum magnetism-integrated double decompression semi-bridge is inverse
Become device, including：First direct voltage source, the second direct voltage source, the first diode D1, the second diode D2, the 3rd diode
D3, the 4th diode D4, first switch pipe S1, second switch pipe S2, output filter capacitor C, the first inductance L1, the second inductance L2
And load R；The negative pole of first direct voltage source is connected with the positive pole of second direct voltage source, and is grounded；It is described
The positive pole of the first direct voltage source drain electrode and the negative electrode phase of the second diode D2 respectively with the first switch pipe S1
Even；The negative pole of second direct voltage source respectively with the anode and the second switch pipe S2 of the first diode D1
Source electrode is connected；The negative electrode of the first diode D1 negative electrode and the first inductance L1 respectively with the 3rd diode D3
Same Name of Ends be connected；The anode of the 3rd diode is connected with the source electrode of the first switch pipe S1；Second diode
The anode of D2 is connected with the different name end of the anode and the second inductance L2 of the 4th diode D4 respectively；Described 4th 2
Pole pipe D4 negative electrode is connected with the drain electrode of the second switch pipe S2；The first switch pipe S1's and second switch pipe S2
Grid is respectively connected to control signal；The different name end of the first inductance L1 is connected with the Same Name of Ends of the second inductance L2, and point
It is not connected with described output filter capacitor C one end and described load R one end；The output filter capacitor C other ends and institute
State the load R other ends to be connected, and be grounded.
In one embodiment of this utility model, the first switch pipe S1 and second switch pipe S2 is power switch
Pipe.
In one embodiment of this utility model, the first diode D1 and the second diode D2 is two pole of afterflow
Pipe.
Compared to prior art, this utility model has the advantages that：It is a kind of acyclic that this utility model is proposed
The magnetism-integrated double decompression semi-bridge converter of stream, on the basis of traditional double blood pressure lowering half-bridge inverter advantage is retained, effectively subtracts
The little volume and weight of the filter inductance of traditional dual buck half bridge inverter, improves magneticss utilization rate, for passing
The dual buck half bridge inverter of system needs two independent output inductors to cause the volume and weight of inverter larger
Problem, by two filter inductance winding coupleds a to magnetic core, and a diode of respectively having connected on each switching tube, prevent
When only near inductive current zero passage, switching tube body diode misleads, to realize aspergillus ficuum mode of operation, while also reach subtracting
The purpose of the volume and weight of little inverter, it is ensured that the reliability of system.
Description of the drawings
Fig. 1 is traditional dual buck half bridge inverter main circuit block diagram.
Fig. 2 is magnetism-integrated double decompression semi-bridge converter main circuit block diagram.
Fig. 3 is four winding magnetism-integrated double decompression semi-bridge converter main circuit block diagram of bimag.
Fig. 4 is to share the full decoupled magnetism-integrated double decompression semi-bridge converter main circuit block diagram of magnetic core.
Fig. 5 is a kind of aspergillus ficuum magnetism-integrated double decompression semi-bridge converter main circuit frame in one embodiment of this utility model
Figure.
Fig. 6 is that the first bridge arm of aspergillus ficuum magnetism-integrated double decompression semi-bridge converter is operated in one embodiment of this utility model
"+1 " state.
Fig. 7 is that the first bridge arm of aspergillus ficuum magnetism-integrated double decompression semi-bridge converter is operated in one embodiment of this utility model
" -1 " state.
Fig. 8 is that the second bridge arm of aspergillus ficuum magnetism-integrated double decompression semi-bridge converter is operated in one embodiment of this utility model
" -1 " state.
Fig. 9 is that the second bridge arm of aspergillus ficuum magnetism-integrated double decompression semi-bridge converter is operated in one embodiment of this utility model
"+1 " state.
Figure 10 is waveform when changer works in one embodiment of this utility model.
Specific embodiment
Below in conjunction with the accompanying drawings, the technical solution of the utility model is specifically described.
Traditional dual buck half bridge inverter is as shown in figure 1, dual buck half bridge inverter was needed in the whole working cycle
Two independent filter inductances, so in the advantage that ensure that traditional dual buck half bridge inverter while subtract as far as possible again
The volume of little magnetic device and the direction that weight is dual buck half bridge inverter research.
Circulation Producing reason is broadly divided at following 2 points：（1）The corresponding independent fly-wheel diode when switching tube is turned on
Mislead；（2）When the corresponding independent fly-wheel diode normal work of switching tube, the body diode of switching tube misleads.
As shown in figure 5, for aspergillus ficuum magnetism-integrated double decompression semi-bridge converter in this utility model, the changer is not only protected
Stay traditional dual buck half bridge inverter that dead band, freewheel current need not be set without bridge arm direct pass problem, switching tube and flow through independence
Fly-wheel diode the advantages of can be optimized design, and two Filter Windings are coupled to using integrated magnetic same
On magnetic core, and two pole of switch body when each series connection one diode D3, D4 prevent inductive current to be close to zero at switching tube S1, S2
Misleading for pipe, realizes aspergillus ficuum current working mode, it is ensured that the reliability of system, while also reaching the body for reducing inverter
The purpose of product and weight.
Compared with changer shown in Fig. 2, the changer proposed by this utility model can prevent inductive current attached in zero passage
Misleading for nearly body diode, realizes aspergillus ficuum mode of operation；Fig. 3 is that each inductor winding average mark is wound on two magnetic cores
On, the inductance value of each inductance is the half of former inductance, due to,For pcrmeability,For coil turn, S is magnetic
Core section is accumulated,For inductance gas length, if inductance value is changed into original half, coil turn will be changed into original,
It is difficult to complete in actual winding process.If whenever two magnetic cores parameter and equal turn numbers（Ideal situation）Condition
Under, two inductance can realize full decoupled, i.e., the applied voltage on an inductance, and the magnitude of voltage sensed on another inductance is
Zero.But the working condition of actually two magnetic cores can not possibly be completely the same, and two magnetic core itself parameter pcrmeabilities etc. are just not
May be identical, by causing, the two halves winding partial pressure of an inductance is different, and the sensing on the inductance all the way of inoperative has voltage,
Or circulation can be produced.And the magnetic core parameter such as pcrmeability with the environmental influences such as temperature it is larger, it is difficult to ensure inoperative electricity
Sense induced voltage is zero.This schemes of Fig. 4 are directed to EE type magnetic cores, the inductance of traditional dual buck half bridge inverterIn being wound on
On post, inductanceWinding is then divided into two parts rotating around on two lateral columns of magnetic core.When applying on one of inductance
During voltage power supply, another inductance is offset due to magnetic flux and will not produce induced voltage, realizes full decoupled.But the in fact magnetic
Integrated technology does not reduce the volume and weight of filter inductance, and filter inductance can not be completely secured in real process
Winding be evenly distributed on two lateral columns, produce very little pressure drop will also result in very big circulation, although improve magnetic core
Utilization rate, but the model of required magnetic core increases the volume and weight of inreal reduction filter inductance.
As shown in figure 5, a kind of aspergillus ficuum magnetism-integrated double decompression semi-bridge converter that this utility model is proposed, including：
First direct voltage source, the second direct voltage source, the first diode D1, the second diode D2, the 3rd diode D3, the four or two pole
Pipe D4, first switch pipe S1, second switch pipe S2, output filter capacitor C, the first inductance L1, the second inductance L2 and load R；
The negative pole of the first direct voltage source is connected with the positive pole of the second direct voltage source, and is grounded；The positive pole of the first direct voltage source point
It is not connected with the drain electrode of first switch pipe S1 and the negative electrode of the second diode D2；The negative pole of the second direct voltage source is respectively with
The source electrode of the anode and second switch pipe S2 of one diode D1 is connected；The negative electrode of the first diode D1 respectively with the 3rd diode
The Same Name of Ends of the negative electrode of D3 and the first inductance L1 is connected；The anode of the 3rd diode is connected with the source electrode of first switch pipe S1；
The anode of the second diode D2 is connected with the different name end of the anode and the second inductance L2 of the 4th diode D4 respectively；Four or two pole
Pipe D4 negative electrodes are connected with the drain electrode of second switch pipe S2；The grid of first switch pipe S1 and second switch pipe S2 is respectively connected to control
Signal processed；The different name end of the first inductance L1 is connected with the Same Name of Ends of the second inductance L2, and respectively with output filter capacitor C one end with
And load R one end is connected；The output filter capacitor C other ends and the load R other ends are connected, and are grounded.
Further, first switch pipe S1 and second switch pipe S2 is power switch pipe, the first diode D1 and the
Two diode D2 are fly-wheel diode.
In order to make a kind of magnetic of aspergillus ficuum that those skilled in the art further appreciate that this utility model is proposed integrated double
Decompression semi-bridge converter, is specifically described with reference to the control method of the inverter.It is involved in the declarative procedure
Existing software or control system be not protection object of the present utility model, this utility model only protect the structure of the device and
Its annexation.
First switch pipe S1, the 3rd diode D3 and the first diode D1 constitute the first bridge arm, second switch pipe S2, the
Four diode D4 and the second diode D2 constitute the second bridge arm；
By working in first switch mode group and second switch mode group, the aspergillus ficuum magnetism-integrated double decompression is realized
The positive half cycle current output of half-bridge inverter；By working in the 3rd switch mode group and the 4th switch mode group, realize
The negative half-cycle electric current output of the aspergillus ficuum magnetism-integrated double decompression semi-bridge converter；
By working in first to fourth switch mode group, realize that electric current connects under without biasing current half operational mode
When continuous formula works, aspergillus ficuum magnetism-integrated double decompression semi-bridge converter in the first bridge arm voltage UA output voltage+Ud first
Working condition or the second bridge arm voltage UB export second working condition of negative voltage-Ud.That is, aspergillus ficuum magnetism-integrated double decompression
First bridge arm voltage UA output electricity of the half-bridge inverter under without biasing current half operational mode during current continuous work
"+l the states " of pressure+Ud, the second bridge arm voltage UB export " -1 state " of negative voltage-Ud, have "+1 state " and " -1 during normal circuit operation
Two working conditions of state ", are utilized respectively two groups of switch mode to realize.By working in first and second switch mode
Group, realizes the positive half cycle current output of inverter；By working in the 3rd and the 4th switch mode group, realize that inverter is born
Half period electric current is exported.
As shown in fig. 6, when first switch mode group is worked in, first switch pipe S1, the 3rd diode D3 are open-minded, first
Diode D1 ends；Second switch pipe S2, the 4th diode D4 and diode D2 are in cut-off state, power to load R,
First bridge arm output voltage UA is equal to the positive voltage+Ud of the first direct voltage source output, namely is in the first working condition,
Realize "+1 state "；
As shown in fig. 7, when second switch mode group is worked in, first switch pipe S1, the 3rd diode D3 shut-off, first
Diode D1 is turned on；Second switch pipe S2, the 4th diode D4 and diode D2 are in cut-off state, and pass through the one or two
Pole pipe D1 is equal to the negative supply voltage-Ud of the second direct voltage source output to power supply feedback energy, the first bridge arm output voltage UA,
Namely the second working condition is realized, realize " -1 state "；
As shown in figure 8, when the 3rd switch mode group is worked in, second switch pipe S2, the 4th diode D4 are open-minded, two poles
Pipe D2 is in cut-off state；First switch pipe Sl, the 3rd diode D3 and the first diode Dl are in cut-off state, to negative
Carry R to power, the second bridge arm output voltage UB is equal to the negative supply voltage-Ud of the second direct voltage source output, namely realizes second
Working condition, realizes " -1 state "；
As shown in figure 9, when the 4th switch mode group is worked in, second switch pipe S2, the 4th diode D4 cut-off, two poles
Pipe D2 is in the conduction state；First switch pipe Sl, the 3rd diode D3 and the first diode Dl are in cut-off state, and pass through
To power supply feedback energy, the second bridge arm output voltage UB voltages are equal to the positive supply electricity of the first direct voltage source output to diode D2
Pressure+Ud, namely the first working condition is realized, realize "+1 state ".
As shown in Figure 10, it is oscillogram when the aspergillus ficuum magnetism-integrated double decompression semi-bridge converter works.
It is more than preferred embodiment of the present utility model, all changes made according to technical solutions of the utility model are produced
Function without departing from technical solutions of the utility model scope when, belong to protection domain of the present utility model.
Claims (3)
1. a kind of aspergillus ficuum magnetism-integrated double decompression semi-bridge converter, it is characterised in that include：First direct voltage source, second
Direct voltage source, the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4, first switch pipe S1,
Second switch pipe S2, output filter capacitor C, the first inductance L1, the second inductance L2 and load R；First direct voltage source
Negative pole be connected with the positive pole of second direct voltage source, and be grounded；The positive pole of first direct voltage source respectively with institute
The negative electrode of the drain electrode and the second diode D2 of stating first switch pipe S1 is connected；The negative pole of second direct voltage source point
It is not connected with the source electrode of the anode and the second switch pipe S2 of the first diode D1；The moon of the first diode D1
Pole is connected with the Same Name of Ends of the negative electrode and the first inductance L1 of the 3rd diode D3 respectively；3rd diode
Anode is connected with the source electrode of the first switch pipe S1；The anode of the second diode D2 respectively with the 4th diode D4
Anode and the second inductance L2 different name end be connected；The 4th diode D4 negative electrodes are with the second switch pipe S2's
Drain electrode is connected；The grid of the first switch pipe S1 and the second switch pipe S2 is respectively connected to control signal；Described first
The different name end of inductance L1 is connected with the Same Name of Ends of the second inductance L2, and respectively with described output filter capacitor C one end and
Described load R one end is connected；The output filter capacitor C other ends and the load R other ends are connected, and are grounded.
2. a kind of aspergillus ficuum magnetism-integrated double decompression semi-bridge converter according to claim 1, it is characterised in that described
The one switching tube S1 and second switch pipe S2 is power switch pipe.
3. a kind of aspergillus ficuum magnetism-integrated double decompression semi-bridge converter according to claim 1, it is characterised in that described
One diode D1 and the second diode D2 is fly-wheel diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621151750.XU CN206164390U (en) | 2016-10-31 | 2016-10-31 | Integrated two pressure reducing type half -bridge dc -to -ac converters of no circulation magnetism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621151750.XU CN206164390U (en) | 2016-10-31 | 2016-10-31 | Integrated two pressure reducing type half -bridge dc -to -ac converters of no circulation magnetism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206164390U true CN206164390U (en) | 2017-05-10 |
Family
ID=58655572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621151750.XU Active CN206164390U (en) | 2016-10-31 | 2016-10-31 | Integrated two pressure reducing type half -bridge dc -to -ac converters of no circulation magnetism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206164390U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329973A (en) * | 2016-10-31 | 2017-01-11 | 福州大学 | Non-circulation and magnetic integration dual buck half bridge inverter and control method thereof |
-
2016
- 2016-10-31 CN CN201621151750.XU patent/CN206164390U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106329973A (en) * | 2016-10-31 | 2017-01-11 | 福州大学 | Non-circulation and magnetic integration dual buck half bridge inverter and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202167993U (en) | Phase-shifted full-bridge switching power supply converter with lossless snubber circuit | |
| CN103051236B (en) | Based on the CHB cascade connection type photovoltaic inverter circuit of the many transformer with split windings of three-phase | |
| CN105024575B (en) | A kind of subway energy back feed device | |
| CN104578844B (en) | Switching mode power supply circuit | |
| CN103414340B (en) | Zero current soft switch inverter | |
| CN103762846A (en) | Magnetic integrated resonant converter | |
| WO2019136578A1 (en) | Single-stage three-phase voltage type inverter with cascade magnetic integrated switch inductance-capacitance network | |
| CN107052527B (en) | A kind of high-power SiC arc burying welding power source | |
| CN106685251A (en) | Single-inductor dual-Buck full-bridge inverter with diode series and parallel structure and control method of single-inductor dual-Buck full-bridge inverter | |
| CN203434871U (en) | Novel high-frequency induction welding power supply structure | |
| CN105634319B (en) | A kind of more level Cascade H-Bridge Inverters with coupling inductance | |
| CN106329973A (en) | Non-circulation and magnetic integration dual buck half bridge inverter and control method thereof | |
| CN206164390U (en) | Integrated two pressure reducing type half -bridge dc -to -ac converters of no circulation magnetism | |
| CN202872643U (en) | Electric automobile vehicular charger and resonance circuit device | |
| CN206759330U (en) | The booster circuit of three-phase single-level full bridge power factor corrector | |
| CN206415753U (en) | A kind of high-power SiC arc burying welding power sources | |
| CN105978372B (en) | A kind of topological circuit and half-bridge topology circuit and three phase full bridge topological circuit | |
| CN104967304B (en) | One kind is based on no bridge CUK isolated form Three Phase Power Factor Correction Converters | |
| CN208723783U (en) | A kind of high efficiency interleaved parallel PFC converter | |
| CN109889043A (en) | A kind of high-efficiency pulse power supply for corona discharge method plasma sewage treatment system | |
| CN104601005A (en) | Resonance offset frequency ozone generator power supply | |
| CN204465350U (en) | A kind of resonance offset frequency ozonizer power supply | |
| CN201726318U (en) | Non-DC link single-phase power electronic transformer | |
| CN106787773A (en) | Commutator transformer without straight-through problem | |
| CN106655838A (en) | Bridgeless isolated soft-switching AC-DC conversion power supply |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |