CN203706812U - Pulse transformer based on multiple pairs of windings - Google Patents
Pulse transformer based on multiple pairs of windings Download PDFInfo
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- CN203706812U CN203706812U CN201320858343.2U CN201320858343U CN203706812U CN 203706812 U CN203706812 U CN 203706812U CN 201320858343 U CN201320858343 U CN 201320858343U CN 203706812 U CN203706812 U CN 203706812U
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- pulse transformer
- windings
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- pulse
- secondary winding
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Abstract
The utility model discloses a pulse transformer based on multiple pairs of windings. The pulse transformer based on the multiple pairs of windings comprises multiple primary side windings and multiple secondary side windings; the primary side windings are coupled with the corresponding secondary side windings by magnetic cores; the multiple primary side windings are connected with a primary power supply after being serially connected; high voltage ends of the secondary side windings are serially connected with rectifying silicon stacks; the secondary side windings serially connected with the rectifying silicon stacks are respectively connected with corresponding loads or are connected with the same load after being connected in parallel. The problem of even current distribution of the multiple silicon stacks in parallel use during the large current load of the transformer is fundamentally solved from the electrical principle; the loads can be uniformly distributed to the magnetic cores of multiple standard models by the pulse transformer based on the multiple pairs of windings, so the high cost brought by special customization and unstable performances due to the overlarge size demand of the magnetic cores are avoided; multiple secondary sides of the transformer can be connected to the same load in parallel and can be independently connected to single loads, and the pulse transformer based on the multiple pairs of windings can be flexibly used aiming at different conditions.
Description
Technical field
The utility model belongs to Pulse Power Techniques field, is specifically related to a kind of pulse transformer based on multipair winding.
Background technology
Pulse Power Techniques are that energy is compressed on room and time, within the extremely short time, discharge a large amount of energy, to produce specific physics or chemical effect, there is wide application in fields such as laser, nuclear fusion, military affairs, exploration, medical treatment, energy environments.
Based on capacitance energy storage, discharge by Closing Switch quick-make, be the Major Technology of Pulse Power Techniques.For the pulse shaping of nanosecond order, when power is larger, (tens of kilovolts, more than thousands of peaces), generally adopt gas switch, and gas medium is generally air, nitrogen, hydrogen, carbon dioxide, sulphur hexafluoride etc.The self-breakdown voltage that the design parameter (as switch electrode spacing, switch inner gas pressure etc.) that gas switch is different and processing technology (electrode machine-shaping precision, electrode surface roughness etc.) can have influence on switch with and stability.In the time adopting DC charging, because switch, for a long time in high pressure conditions, before charging voltage reaches expection operating voltage, prebreakdown probably will occur, affect system stable operation.Adopt pulse current charge, as the pulse of tens of delicate width, switch pressurized process shortens, the probability of prebreakdown significantly reduces, also reduce the insulating requirements of system simultaneously, for the pulse power system of multiple switch couplings and device that the stability of a system is had relatively high expectations, had very large meaning.For civilian pulse power system, because it is intended for commercial Application, higher to the repetition rate General Requirements of system.Such as the low-temperature plasma electrical source for exhaust-gas treatment, its peak power is in megawatt rank, but its repetition rate General Requirements hundreds of is to upper KHz, and average power tens is to up to a hundred kilowatts.
Therefore,, in Pulse Power Techniques, charging technique quick, stable, that repeat is a very important problem.Generally speaking, Microsecond grade pulse compression has several technological approaches: 1. magnetic switch compression; 2.Marx generator; 3. Tesla transformer; 4. band magnetic core pulse transformer.Magnetic switch and Marx generator can be realized the pulse compression of macro-energy, and Marx generator can also be realized the stack of voltage, but this two schemes structure is comparatively complicated, also needs independent boosting unit.Tesla transformer can be realized simultaneously and boosting and pulse compression, because containing iron core, the coupling coefficient of primary and secondary is less, need to just can reach high conversion efficiency through multiple oscillation, therefore elementary more difficult use semiconductor switch is controlled, and repeats to stablize output performance poor.The pulse transformer of ribbon core because of coupling coefficient high, energy conversion efficiency is also relatively high, can reach more than 90%, compression process is not vibrated, and elementaryly can use semiconductor switch control, can repeat stable operation to tens KHz.
Generally speaking, ribbon core pulse transformer can carry out rectification by serial connection rectification silicon stack secondary, prevents the reverse vibration of electric current, makes charging more stable.When single pulse energy is larger, or repetition rate is higher, average power is when very large, will be very large by peak current and the average current of rectification silicon stack, if the bearing capacity deficiency of silicon stack can directly cause and burn.Therefore, in the time that current capacity is larger, use the way of multiple silicon stack couplings, share current capacity.The simplest way is that multiple silicon stacks are directly in parallel, but the performance of each silicon stack can not be in full accord, resistance under conducting state is not desirable equalization, therefore the distribution of electric current is impossible very even, suppose that wherein a silicon stack on-state resistance is less than normal, by bearing very large load, probably exceed its load capacity so, cause damage, the larger risk of same existence.
Summary of the invention
For the existing above-mentioned technical problem of prior art, the utility model provides a kind of pulse transformer based on multipair winding, it adopts the many Winding Designs of many magnetic cores, can realize the current-sharing output of multiplex pulse at secondary, under high-energy, high repetition frequency, high-power service conditions, significantly reduce silicon stack and transshipped impaired risk, improved the stability of system.
Based on a pulse transformer for multipair winding, comprise n former limit winding and n secondary winding; Described former limit winding is by magnetic core and corresponding secondary winding coupled; Described n former limit winding connects primary source after connecting successively, and described secondary winding high-pressure side is serially connected with rectification silicon stack;
N secondary winding that is serially connected with rectification silicon stack connects corresponding load or the rear same load that connects in parallel separately, and n is greater than 1 natural number.
Described magnetic core can adopt silicon steel sheet, ferrite, amorphous magnet, nano microcrystalline, permalloy or other any one soft magnetic materials.
The shape of described magnetic core can be out gap or does not open the annular of gap, O shape or E type etc.
Described primary source can be power frequency AC, resonant pulses power supply, square-wave pulse power source, high-frequency ac power or triangular pulse power supply etc.
Described load can be high-voltage capacitance, transmission line, Blumlein line, plasma reactor or lithium battery etc.
Described magnetic core number is multiple, one or more pairs of former secondary windings around the home on single magnetic core.
The turn ratio of every a pair of former secondary winding is all identical.
In the time of an action of low-voltage pulse of primary source input, because all former limits adopt the form of series connection, the electric current of each former limit winding circulation is formed objects, the energy that is each former its winding of limit feed-in equates, so at different secondary, can obtain the high-voltage pulse output of identical energy, its size of current also equates.
Compared with prior art, useful technique effect of the present utility model is as follows:
(1) from electrical principle, solved transformer in the time of high current load, the electric current of multiple silicon stack couplings is evenly distributed problem at all;
(2) the larger transformer of power, its core volume is also larger, adopt design of the present utility model, can be by its load sharing the magnetic core to multiple conventional types number, avoid excessive because of core volume requirement, needed the unsteadiness of the performance that great number cost that special customization brings and customization large volume iron core bring because of manufacture craft deficiency;
(3) multiple secondary of transformer can be connected in parallel to single load, also can separate connection to load separately, can flexible Application to different situations.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model pulse transformer.
Fig. 2 adopts the enforcement schematic diagram of the utility model pulse transformer to the quick charge of nanosecond pulse power system.
Fig. 3 adopts the utility model pulse transformer to produce the enforcement schematic diagram of square-wave pulse.
Fig. 4 adopts the utility model pulse transformer to drive the enforcement schematic diagram of multiple reaction of low temperature plasma devices.
Fig. 5 adopts the utility model pulse transformer electric automobile lithium battery to be carried out to the enforcement schematic diagram of quick constant current charge.
Embodiment
In order more specifically to describe the utility model, below in conjunction with the drawings and the specific embodiments, the technical solution of the utility model and relative theory thereof are elaborated.
Embodiment 1
As shown in Figure 1, a kind of pulse transformer based on multipair winding, comprises n former limit winding 1 and n secondary winding 3; Former limit winding 1 is coupled with corresponding secondary winding 3 by magnetic core 2; N former limit winding 1 connects primary source 5 after series connection successively, and secondary winding 3 high-pressure sides are serially connected with rectification silicon stack 4; N is serially connected with the secondary winding 3 rear load 6 that connects in parallel of rectification silicon stack 4; The turn ratio of every a pair of former secondary winding is all identical.
Former limit winding 1 and secondary winding 3 are coupled by magnetic core 2, and secondary winding high-pressure side connects rectification silicon stack 4, forms thus a winding element W1.Whole transformer is total to n identical winding element by W1, W2Wn and forms.The former limit winding 1 of each unit is connected successively, then connects primary source 5, equates by the electric current of each former limit winding; Secondary winding 3 is parallel with one another through rectification silicon stack 4, then exports load 6 to, and the electric current of flow through each secondary winding 3 and rectification silicon stack 4 equates.
Because all former limit windings 1 are series system, the electric current that is therefore fed into each former limit winding 1 by primary source 5 equates, to be therefore coupled to the energy of secondary winding 3 identical for each former limit winding 1, so the size of current that each secondary winding 3 is exported equates.
Embodiment 2
In Fig. 2, former limit winding 1 and secondary winding 3 are coupled by magnetic core 2, and secondary winding high-pressure side connects rectification silicon stack 4, forms thus a winding element W1.Whole transformer is total to n identical winding element by W1, W2Wn and forms.The former limit winding 1 of each unit is connected successively, then is connected to electric capacity 6 and the semiconductor switch 7 of the elementary pulse power 5; Secondary winding 3 is parallel with one another through rectification silicon stack 4, then is connected to the high-voltage energy storage capacitor 9 of nanosecond pulse power system 8, is its quick high-pressure charging.
Embodiment 3
In Fig. 3, former limit winding 1 and secondary winding 3 are coupled by magnetic core 2, and secondary winding high-pressure side connects rectification silicon stack 4, forms thus a winding element W1.Whole transformer is total to n identical winding element by W1, W2Wn and forms.The former limit winding 1 of each unit is connected successively, then is connected to pulse forming line 6 and the semiconductor switch 7 of elementary square-wave pulse power source 5; Secondary winding 3 is parallel with one another through rectification silicon stack 4, then is connected to load 8, obtains high-voltage square-wave output in load 8.
Embodiment 4
In Fig. 4, former limit winding 1 and secondary winding 3 are coupled by magnetic core 2, and secondary winding high-pressure side connects rectification silicon stack 4, forms thus a winding element W1.Whole transformer is total to n identical winding element by W1, W2Wn and forms.The former limit winding 1 of each unit is connected successively, then is connected to electric capacity 6 and the semiconductor switch 7 of the elementary pulse power 5; Secondary winding 3 is independently connected to a plasma reactor 8 through rectification silicon stack 4, obtains large-scale plasma discharge.
Embodiment 5
In Fig. 5, former limit winding 1 and secondary winding 3 are coupled by magnetic core 2, and secondary winding high-pressure side connects rectification silicon stack 4, forms thus a winding element W1.Whole transformer is total to n identical winding element by W1, W2Wn and forms.The former limit winding 1 of each unit is connected successively, then is connected to electric capacity 6 and the semiconductor switch 7 of the elementary pulse power 5; Secondary winding 3 is parallel with one another through rectification silicon stack 4, then is connected to electric automobile lithium battery group 8, is its high-power constant current quick charge.
Claims (7)
1. the pulse transformer based on multipair winding, is characterized in that: comprise n former limit winding and n secondary winding; Described former limit winding is by magnetic core and corresponding secondary winding coupled; Described n former limit winding connects primary source after connecting successively, and described secondary winding high-pressure side is serially connected with rectification silicon stack;
N secondary winding that is serially connected with rectification silicon stack connects corresponding load or the rear same load that connects in parallel separately, and n is greater than 1 natural number.
2. pulse transformer according to claim 1, is characterized in that: described magnetic core adopts soft magnetic material.
3. pulse transformer according to claim 1, is characterized in that: described magnetic core be shaped as annular, O shape or E type.
4. pulse transformer according to claim 1, is characterized in that: described primary source adopts power frequency AC, resonant pulses power supply, square-wave pulse power source, high-frequency ac power or triangular pulse power supply.
5. pulse transformer according to claim 1, is characterized in that: described load adopts high-voltage capacitance, transmission line, Blumlein line, plasma reactor or lithium battery.
6. pulse transformer according to claim 1, is characterized in that: described magnetic core number is multiple, one or more pairs of former secondary windings around the home on single magnetic core.
7. pulse transformer according to claim 1, is characterized in that: the turn ratio of every a pair of former secondary winding is all identical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320858343.2U CN203706812U (en) | 2013-12-24 | 2013-12-24 | Pulse transformer based on multiple pairs of windings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320858343.2U CN203706812U (en) | 2013-12-24 | 2013-12-24 | Pulse transformer based on multiple pairs of windings |
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| Publication Number | Publication Date |
|---|---|
| CN203706812U true CN203706812U (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320858343.2U Expired - Fee Related CN203706812U (en) | 2013-12-24 | 2013-12-24 | Pulse transformer based on multiple pairs of windings |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730234A (en) * | 2013-12-24 | 2014-04-16 | 浙江大学 | Pulse transformer based on multiple pairs of windings |
| CN105355400A (en) * | 2015-12-10 | 2016-02-24 | 西南交通大学 | Structure for inhibiting flux leakage and improving transmission efficiency of alternating current magnetic field |
| CN108390464A (en) * | 2018-03-14 | 2018-08-10 | 南京航空航天大学 | A kind of non-contact electric energy transmission device and flexible wave-passage excitation method |
| CN110808149A (en) * | 2019-10-11 | 2020-02-18 | 西安交通大学 | Low-leakage-inductance multistage multi-primary-side multi-secondary-side pulse transformer and winding method thereof |
-
2013
- 2013-12-24 CN CN201320858343.2U patent/CN203706812U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103730234A (en) * | 2013-12-24 | 2014-04-16 | 浙江大学 | Pulse transformer based on multiple pairs of windings |
| CN105355400A (en) * | 2015-12-10 | 2016-02-24 | 西南交通大学 | Structure for inhibiting flux leakage and improving transmission efficiency of alternating current magnetic field |
| CN108390464A (en) * | 2018-03-14 | 2018-08-10 | 南京航空航天大学 | A kind of non-contact electric energy transmission device and flexible wave-passage excitation method |
| CN110808149A (en) * | 2019-10-11 | 2020-02-18 | 西安交通大学 | Low-leakage-inductance multistage multi-primary-side multi-secondary-side pulse transformer and winding method thereof |
| CN110808149B (en) * | 2019-10-11 | 2022-02-22 | 西安交通大学 | Low-leakage-inductance multistage multi-primary-side multi-secondary-side pulse transformer and winding method thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20191224 |