CN203180762U - Parallel-load resonant high-voltage power source device - Google Patents
Parallel-load resonant high-voltage power source device Download PDFInfo
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- CN203180762U CN203180762U CN2013201898751U CN201320189875U CN203180762U CN 203180762 U CN203180762 U CN 203180762U CN 2013201898751 U CN2013201898751 U CN 2013201898751U CN 201320189875 U CN201320189875 U CN 201320189875U CN 203180762 U CN203180762 U CN 203180762U
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- 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
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Abstract
The utility model discloses a parallel-load resonant high-voltage power source device including a resonant inverting part and a transformer connected mutually and a control part connected with a resonant inverting part and a high-voltage output terminal. The resonant inverting part includes a resonant inductor and a resonant capacitor connected with each other in series. The resonant capacitor of the resonant inverting part is connected to a secondary terminal of a transformer in parallel. When the parallel-load resonant high-voltage power source device provided by the utility model is in a continuously-working state, the duty ratio is high, so that peak value current is comparatively small. A switch tube is working in a soft-starting state, the switching loss is low, so that the parallel-load resonant high-voltage power source device is easy to realize. At the same time, since the resonant capacitor is disposed on the secondary terminal of the transformer, resonant capacitance and distributed capacitance of the transformer are converted into a primary terminal and then realize resonance with the resonant inductor. Therefore, leakage inductance of the transformer and the distributed capacitance are utilized fully, so that a problem of secondary resonance is avoided.
Description
Technical field
The utility model relates to the high voltage direct current source domain, specifically is a kind of resonance high-voltage supply unit of shunt load.
Background technology
All the time, for the high-voltage DC power supply in high pressure field, mostly be linear power supply, common bridge switch power supply, series resonant switching power supply mode.The linear power supply volume is big, efficient is low, anti-sparking ability, is not used already; Common bridge switch power supply can not short circuit work, and therefore anti-sparking ability extreme difference is difficult in the high voltage source field and is widely adopted; Series resonant switching power supply is constant-current source character, can short circuit work, and can realize soft switch, the switching surge electric current is big, loss reaches shortcomings such as the difficult design of transformer greatly but it has.
The transformer of series resonance and inductance, capacitances in series are load tandem resonant power.And because the output voltage of high voltage source is higher, the transformer secondary output number of turn is more, and leakage inductance and distributed capacitance are all bigger, cause the resonance transformer design difficulty very big, thereby influence power source performance.Simultaneously, series resonance in the past all is operated in discontinuous mode, and peak current is big, and switching loss is big.Therefore, need a kind ofly can have series resonance constant current advantage, and can solve the novel high-pressure power circuit that peak current reaches the difficult design of transformer greatly.
Recently in year, the appearance of parallel resonance topology has solved the problems referred to above to a certain extent.But because transformer exists leakage inductance and distributed capacitance all the time, and primary series inductance and shunt capacitance again, can form the syndeton of resonant inductance-resonant capacitance-leakage inductance-distributed capacitance, cause secondary resonance to occur, harmonic wave is changed, current peak increases, and power-efficient reduces, and more difficult selective resonance inductance and resonant capacitance.
The utility model content
The technical problems to be solved in the utility model provides a kind of resonance high-voltage supply unit of shunt load, it is parallel to transformer secondary output with resonant capacitance, the distributed capacitance of transformer and resonant capacitance folding are synthesized to transformer just after date and resonant inductance series resonance, have avoided the problem of secondary resonance.
The technical solution of the utility model is:
The resonance high-voltage supply unit of shunt load includes interconnective resonance inversion part and transformer, and the control section that is connected with high-voltage output end with the resonance inversion part; Resonance inversion partly includes resonant inductance and the resonant capacitance of mutual series connection, and the resonant capacitance of resonance inversion part is parallel to the secondary of transformer.
Described resonance inversion partly includes four groups of switching tube assemblies that all are connected with control section, described resonant inductance and resonant capacitance; In four groups of switching tube assemblies, be composed in series two groups of tandem tap pipe assemblies in twos, two groups of tandem tap pipe assembly backs parallel with one another are connected with feeder ear, one input of primary is connected in after by resonant inductance between the two switching tube assemblies of one group of tandem tap pipe assembly wherein, and another input of primary is connected between two switching tube assemblies of another group tandem tap pipe assembly.
The resonance high-voltage supply unit of described shunt load also includes the current rectifying and wave filtering circuit that is connected between resonance inversion part and the feeder ear, the high-voltage rectifying filter circuit that is connected in resonance inversion part rear end.
Advantage of the present utility model:
And the utility model is operated in continuous state, and duty ratio is big, so peak current is less; Switching tube is operated in soft on off state, and switching loss is little, easier realization; Simultaneously, because resonant capacitance is placed on transformer secondary output, be folded to elementary back and resonant inductance resonance with the distributed capacitance of transformer, formed the form of resonant inductance-leakage inductance-distributed capacitance+resonant capacitance, leakage inductance and the distributed capacitance of transformer are utilized fully the secondary resonance problems of having avoided the syndeton of resonant inductance-resonant capacitance-leakage inductance-distributed capacitance to cause.
Description of drawings
Fig. 1 is The general frame of the present utility model.
Fig. 2 is circuit structure diagram of the present utility model.
The time dependent oscillogram of electric current when Fig. 3 is the utility model work.
Embodiment
See Fig. 1, the resonance high-voltage supply unit of shunt load, include the current rectifying and wave filtering circuit 1, resonance inversion part 2, transformer 3 and the high-voltage rectifying filter circuit 4 that are connected in the feeder ear rear end in turn, and the control section 5 that is connected with high-voltage output end with resonance inversion part 2; Resonance inversion part 2 includes four groups of switching tube assemblies that all are connected with control section 5, resonant inductance L1 and resonance capacitor C 1; Every group of switching tube assembly is by a switching tube V1, V2, and V3, V4 and a diode D1 in parallel, D2, D3, D4 forms; In four groups of switching tube assemblies, be composed in series two groups of tandem tap pipe assemblies in twos, two groups of tandem tap pipe assembly backs parallel with one another are connected with feeder ear, the elementary input of transformer 3 is connected in after by resonant inductance L1 between the two switching tube assemblies of one group of tandem tap pipe assembly wherein, transformer 3 another elementary inputs are connected between the two switching tube assemblies of another group tandem tap pipe assembly, and resonant capacitance C1 is parallel to the secondary of transformer 3.
Operation principle of the present utility model:
The feeder ear output current is delivered to resonance inversion part 2 behind current rectifying and wave filtering circuit 1 rectifying and wave-filtering, pass through transformer 3 and high-voltage rectifying filter circuit 4 then, the output high direct voltage, control section 5 is gathered the output voltage of high-voltage output end, control operating frequency after the closed loop, to realize the size of fan-out capability.
See Fig. 3, t0 constantly, control section 5 control V1 and V4 conductings, the distributed capacitance of resonant capacitance C1 and transformer 3 are folded to after the primary and resonant inductance L1 series resonance, are equivalent to the secondary short circuited of transformer 3 at this moment, not to secondary transmission energy; In the t1 moment, resonance finishes, and electric current begins from transformer 3 primary flow mistakes, to secondary transmission energy; In the t2 moment, control section 5 control V1 and V4 turn-off, because the afterflow effect of resonant inductance L1, electric current continues from transformer 3 primary flow mistakes, and makes diode D2 and D3 conducting, and electric current flows back to feeder ear, and electric current begins to descend; T3 constantly, control section 5 control V2 open with V3, this moment is because the conducting of D2 and D3 makes the voltage of V2 and V3 locked, so V2 and V3 do not have the unlatching loss at this moment; In the t4 moment, the electric current afterflow finishes, the electric current commutation, because electric capacity polarity and opposite current, this moment, resonant inductance L1 and resonant capacitance C1 carried out series resonance again, up to t5 resonance end constantly, during this period of time equally not to secondary transmission energy, t5 constantly after, the same half period of working method.
Claims (3)
1. the resonance high-voltage supply unit of shunt load includes interconnective resonance inversion part and transformer, and the control section that is connected with high-voltage output end with the resonance inversion part; Resonance inversion partly includes resonant inductance and the resonant capacitance of mutual series connection, it is characterized in that: the resonant capacitance of resonance inversion part is parallel to the secondary of transformer.
2. the resonance high-voltage supply unit of shunt load according to claim 1, it is characterized in that: described resonance inversion partly includes four groups of switching tube assemblies that all are connected with control section, described resonant inductance and resonant capacitance; In four groups of switching tube assemblies, be composed in series two groups of tandem tap pipe assemblies in twos, two groups of tandem tap pipe assembly backs parallel with one another are connected with feeder ear, one input of primary is connected in after by resonant inductance between the two switching tube assemblies of one group of tandem tap pipe assembly wherein, and another input of primary is connected between two switching tube assemblies of another group tandem tap pipe assembly.
3. the resonance high-voltage supply unit of shunt load according to claim 1 is characterized in that: the resonance high-voltage supply unit of described shunt load also includes the current rectifying and wave filtering circuit that is connected between resonance inversion part and the feeder ear, the high-voltage rectifying filter circuit that is connected in resonance inversion part rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201898751U CN203180762U (en) | 2013-04-16 | 2013-04-16 | Parallel-load resonant high-voltage power source device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013201898751U CN203180762U (en) | 2013-04-16 | 2013-04-16 | Parallel-load resonant high-voltage power source device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203180762U true CN203180762U (en) | 2013-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013201898751U Expired - Lifetime CN203180762U (en) | 2013-04-16 | 2013-04-16 | Parallel-load resonant high-voltage power source device |
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| Country | Link |
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| CN (1) | CN203180762U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114123745A (en) * | 2021-10-26 | 2022-03-01 | 深圳市联洲国际技术有限公司 | Efficient flyback circuit for leakage inductance and control method thereof |
-
2013
- 2013-04-16 CN CN2013201898751U patent/CN203180762U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114123745A (en) * | 2021-10-26 | 2022-03-01 | 深圳市联洲国际技术有限公司 | Efficient flyback circuit for leakage inductance and control method thereof |
| CN114123745B (en) * | 2021-10-26 | 2023-10-13 | 深圳市联洲国际技术有限公司 | Efficient flyback circuit for leakage inductance and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130904 |