CN107171542A - A kind of high voltage power supply converter anti-jamming circuit - Google Patents
A kind of high voltage power supply converter anti-jamming circuit Download PDFInfo
- Publication number
- CN107171542A CN107171542A CN201710529629.9A CN201710529629A CN107171542A CN 107171542 A CN107171542 A CN 107171542A CN 201710529629 A CN201710529629 A CN 201710529629A CN 107171542 A CN107171542 A CN 107171542A
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- China
- Prior art keywords
- triode
- drive signal
- bridge arm
- resistance
- high voltage
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- 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.)
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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
- H02M1/00—Details of apparatus for conversion
- H02M1/38—Means for preventing simultaneous conduction of switches
-
- 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
- H02M1/00—Details of apparatus for conversion
- H02M1/38—Means for preventing simultaneous conduction of switches
- H02M1/385—Means for preventing simultaneous conduction of switches with means for correcting output voltage deviations introduced by the dead time
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inverter Devices (AREA)
- Electronic Switches (AREA)
Abstract
The present invention relates to a kind of high voltage power supply converter anti-jamming circuit, belong to radar transmitter technology, it includes driver element, protection location and bridge arm unit, the driver element is used to provide drive signal to protection location；Protection location receives the drive signal that driver element is sent, and the bridge arm control signal exported according to the drive signal control and protection unit；Bridge arm unit receives bridge arm control signal, completes the connection of bridge arm unit.The present invention is on the basis of conventional bridge drive circuit, add some auxiliary circuits, synchronization only allow to have all the way drive signal may be added to metal-oxide-semiconductor, even in extreme high pressure strike sparks in the case of, can also ensure the switching tube of upper and lower bridge arm will not also simultaneously turn on.Component needed for the high voltage power supply converter anti-jamming circuit of the present invention is few, strong antijamming capability, can greatly improve reliability of the emitter high tension transformer in the case of extreme sparking, it is possible to be widely used in radar transmitter high voltage power supply.
Description
Technical field
The invention belongs to radar transmitter technical field, more particularly to a kind of high voltage power supply converter anti-jamming circuit.
Background technology
Emitter is a high power in radar system, high-tension extension set module, during debugging and use, often
High voltage arc phenomenon occurs.High voltage power supply is often in the strong of emitter as the important component of electrovacuum emitter
Among electromagnetic environment, the high voltage arc of emitter, it is easy to cause the misoperation of high voltage power supply inverter drive circuit causes to become
The upper and lower bridge arm of parallel operation is simultaneously turned on.
In order to avoid under conditions of extreme sparking, controlled in emitter the high voltage power supply converter of high voltage power supply transformation by
Upper and lower bridge arm is produced in misoperation straight-through, although to use the control core of some strong antijamming capabilities in high voltage power supply converter
Piece (PWM controller), or increase some shielding measures (such as by high tension transformer as in metal box), can be in certain journey
The straight-through probability of upper and lower bridge arm is reduced on degree, but all can not fundamentally avoid extreme case downconverter bridge arm direct pass from damaging.
It is existing bridge converter circuit schematic diagram as shown in Figure 1, output terminals A, B when driving chip export height simultaneously
During level, triode V3 and V4 are both turned on so that transformer T1 and T2 secondary produce driving voltage, further such that upper bridge
The metal-oxide-semiconductor V5/V6 of arm and lower bridge arm is both turned on, and causes power power-supply VCC short circuits, is produced dangerous.
The content of the invention
It is an object of the invention to provide a kind of high voltage power supply converter anti-jamming circuit, for solving current bridge-type conversion
The problem of upper and lower bridge arm of the device circuit under high-tension ignition state is easily turned on, improves security.
To reach above-mentioned purpose, the technical solution adopted by the present invention is：A kind of high voltage power supply converter anti-jamming circuit, its
Including driver element, protection location and bridge arm unit,
The driver element is used to provide drive signal to protection location；
Protection location receives the drive signal that driver element is sent, and is exported according to the drive signal control and protection unit
Bridge arm control signal；
Bridge arm unit receives bridge arm control signal, completes the connection of bridge arm unit.
In embodiments of the invention, protection location includes resistance R1~R4, triode V1~V4 and transformer T1 and T2, its
A middle resistance R1 end is connected to the drive signal output terminals A of driver element output, another bases for being connected to triode V3 of resistance R1
Pole；A resistance R2 end is connected to another base for being connected to triode V1 of drive signal output end B, resistance R2 of driver element output
Pole；A resistance R3 end is connected to drive signal output terminals A, another base stages for being connected to triode V2 of resistance R3；The one of resistance R4
It is connected to another base stage for being connected to triode V4 of drive signal output end B, resistance R4；Triode V1 collector is connected to three poles
Pipe V3 base stage；Triode V2 emitter stage is connected to triode V4 base stage；Triode V1 emitter stage, V2 collector, V3
Emitter stage, V4 collector be connected to signal ground terminal；Triode V3 collector is connected to driving transformer T1 C-terminal；Triode
V4 emitter stage is connected to driving transformer T2 F ends；Driving transformer T1 D ends are connected to+15V accessory power supplys, and G ends are connected to MOS
Pipe V5 grid, H ends are connected to metal-oxide-semiconductor V5 source electrode；Driving transformer T2 E ends are connected to+15V accessory power supplys, and I ends are connected to MOS
Pipe V6 grid, J ends are connected to metal-oxide-semiconductor V6 source electrode.
In embodiments of the invention, the triode V1~V4 is NPN type triode.
In embodiments of the invention, when simultaneously the drive signal output terminals A and drive signal output end B of driver element are exported
During drive signal, triode V3 and triode V4 are closed due to triode V1 and V2 control, realize the guarantor of bridge arm unit
Shield.
In embodiments of the invention, by adjusting the driving electricity that resistance R1~R4 resistance can control drive signal to export
Size is flowed, the driving current is used to control triode V1~V4 to be in open/close state..
The present invention is on the basis of conventional bridge drive circuit, to add some auxiliary circuits, is only permitted in synchronization
Permitted to have all the way drive signal may be added to metal-oxide-semiconductor, even in extreme high pressure strike sparks in the case of, can also ensure holding for upper and lower bridge arm
Closing pipe will not also simultaneously turn on.Component needed for the high voltage power supply converter anti-jamming circuit of the present invention is few, strong antijamming capability,
Reliability of the emitter high tension transformer in the case of extreme sparking can be greatly improved, it is possible to be widely used in radar emission
In machine high voltage power supply.
Brief description of the drawings
Accompanying drawing herein is merged in specification and constitutes the part of this specification, shows the implementation for meeting the present invention
Example, and for explaining principle of the invention together with specification.
Fig. 1 is the drive circuit figure of the bridge converter circuit of prior art.
Fig. 2 is the high voltage power supply converter anti-jamming circuit figure of one embodiment of the invention.
Embodiment
To make the purpose, technical scheme and advantage of the invention implemented clearer, below in conjunction with the embodiment of the present invention
Accompanying drawing, the technical scheme in the embodiment of the present invention is further described in more detail.
The high voltage power supply converter anti-jamming circuit of one embodiment of the invention as shown in Figure 2, it include driver element 1,
Protection location 2 and bridge arm unit 3, the driver element 1 are used to provide drive signal to protection location；Protection location 2, which is received, to be driven
The drive signal that moving cell 1 is sent, and the bridge arm control signal exported according to the drive signal control and protection unit 2；Bridge arm
Unit 3 receives bridge arm control signal, completes the connection of bridge arm unit 3.
Driver element 1 is made up of driving chip, and protection location 2, which has, suppresses straight-through function, and bridge arm unit 3 is converter
Upper and lower bridge arm.
The driving chip of driver element 1 provides two-way drive signal, respectively side a and b.
Protection location 2 includes resistance R1~R4, triode V1~V4 and transformer T1 and T2, and a resistance R1 end is connected to drive
Dynamic signal output part A, another base stage for being connected to triode V3；A resistance R2 end is connected to drive signal output end B, the other end
It is connected to triode V1 base stage；A resistance R3 end is connected to drive signal output terminals A, another base stage for being connected to triode V2；
A resistance R4 end is connected to drive signal output end B, another base stage for being connected to triode V4；Triode V1 collector is connected to
Triode V3 base stage；Triode V2 emitter stage is connected to triode V4 base stage；The collection of triode V1 emitter stage, V2
Pole, V3 emitter stage, V4 collector are connected to signal ground terminal.Triode V3 collector is connected to transformer T1 C-terminal；Triode
V4 emitter stage is connected to transformer T2 F ends；Transformer T1 D ends are connected to+15V accessory power supplys, and G ends are connected to metal-oxide-semiconductor V5 grid
Pole, H ends are connected to metal-oxide-semiconductor V5 source electrode；Transformer T2 E ends are connected to+15V accessory power supplys, and I ends are connected to metal-oxide-semiconductor V6 grid, J
It is connected to metal-oxide-semiconductor V6 source electrode.
Above-mentioned triode V1~V4 is NPN type triode.
Bridge arm unit 3 is the upper and lower bridge arm of converter, and metal-oxide-semiconductor V5 drain electrode is connected to power power-supply VCC；Metal-oxide-semiconductor V6 leakage
Pole is connected to metal-oxide-semiconductor V5 source electrode, and metal-oxide-semiconductor V6 source electrode is connected to Power Groud.
According to specific driving chip, and semiconductor devices, resistance R1, R2, R3, R4 can be according to drivings in schematic diagram
The voltage and current of signal, selects suitable resistance and power capacity, it becomes possible to ensure under the extreme case of transmitter sparking,
Also be not in that drive signal gets muddled, cause the metal-oxide-semiconductor V5/V6 of upper and lower bridge arm to simultaneously turn on.
In the case of A, B two-way drive signal that the driving chip of driver element 1 is produced, normal work, A, B two paths of signals
It is asynchronously high level, and leaves dead time between the two.
When A roads signal is high level, 15V power supplys are conducted to signal ground through transformer T1 primary and triode V3, and drive
Dynamic signal is delivered to metal-oxide-semiconductor V5 grid by T1 level of transformer, and upper bridge arm is turned on, now because B roads signal is low level,
And triode V2 is in conducting state, it is ensured that triode V4 is in reliable turn-off state, and then metal-oxide-semiconductor V6 is off shape
State.
Similarly, when B roads signal is high level, 15V power supplys are conducted to signal ground through transformer T2 primary and triode V4,
And drive signal is delivered to metal-oxide-semiconductor V6 grid, lower bridge arm conducting, now because A roads signal is low by T2 level of transformer
Level, and triode V1 is in conducting state, it is ensured that and triode V3 is in reliable turn-off state, and then metal-oxide-semiconductor V5 is in
Off state.
If at a time, transmitter HVPS is struck sparks, the strong electromagnetic of generation causes the A roads of driving chip, B
Road output is simultaneously high level, now, triode V1 conductings, because triode V1 connection signal grounds cause triode V3 base stage
It is forced to pull down to low level and close；Similarly, triode V2 is turned on, because triode V2 connection signal grounds cause triode V4
Base stage be forced to pull down to low level and close, the abnormal drive signal of such two-way would not be transmitted by driving transformer
To the metal-oxide-semiconductor V5 and V6 of unit 3, upper and lower bridge arm is caused while straight-through damage.
The drive circuit of existing bridge converter circuit is in the forceful electric power magnetic environment residing for emitter, especially accidental
Under the extreme case of high voltage arc, easily it is interfered, causes drive signal disorderly, cause the switching tube of upper and lower bridge arm while leading
It is logical.Although taking certain shielding measure and the driving chip using strong antijamming capability, sparking can be reduced to a certain extent
Cause the probability that upper and lower bridge arm is straight-through, but can not fundamentally avoid the straight-through of upper and lower bridge arm under extreme case.
And the present invention is on the basis of conventional bridge drive circuit, to add some auxiliary circuits, in synchronization only
Allow to have all the way drive signal may be added to metal-oxide-semiconductor, even in extreme high pressure strike sparks in the case of, can also ensure upper and lower bridge arm
Switching tube will not also be simultaneously turned on.
Component needed for the high voltage power supply converter anti-jamming circuit of the present invention is few, strong antijamming capability, can greatly improve
Reliability of the emitter high tension transformer in the case of extreme sparking, it is possible to be widely used in radar transmitter high voltage power supply
In.
It is described above, it is only the optimal embodiment of the present invention, but protection scope of the present invention is not limited thereto,
Any one skilled in the art the invention discloses technical scope in, the change or replacement that can be readily occurred in,
It should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with the protection model of the claim
Enclose and be defined.
Claims (5)
1. a kind of high voltage power supply converter anti-jamming circuit, it is characterised in that including driver element, protection location and bridge arm list
Member,
The driver element is used to provide drive signal to protection location；
Protection location receives the drive signal that driver element is sent, and the bridge exported according to the drive signal control and protection unit
Arm control signal；
Bridge arm unit receives bridge arm control signal, completes the connection of bridge arm unit.
2. high voltage power supply converter anti-jamming circuit according to claim 1, it is characterised in that protection location includes resistance
R1~R4, triode V1~V4 and transformer T1 and T2, wherein a resistance R1 end are connected to the drive signal of driver element output
Output terminals A, another base stages for being connected to triode V3 of resistance R1；A resistance R2 end is connected to the drive signal of driver element output
Another base stage for being connected to triode V1 of output end B, resistance R2；A resistance R3 end is connected to drive signal output terminals A, resistance R3
Another base stage for being connected to triode V2；A resistance R4 end is connected to that drive signal output end B, resistance R4 are another to be connected to three poles
Pipe V4 base stage；Triode V1 collector is connected to triode V3 base stage；Triode V2 emitter stage is connected to triode V4's
Base stage；Triode V1 emitter stage, V2 collector, V3 emitter stage, V4 collector are connected to signal ground terminal；Triode V3's
Collector is connected to driving transformer T1 C-terminal；Triode V4 emitter stage is connected to driving transformer T2 F ends；Driving transformer
T1 D ends are connected to+15V accessory power supplys, and G ends are connected to metal-oxide-semiconductor V5 grid, and H ends are connected to metal-oxide-semiconductor V5 source electrode；Driving transformer
T2 E ends are connected to+15V accessory power supplys, and I ends are connected to metal-oxide-semiconductor V6 grid, and J ends are connected to metal-oxide-semiconductor V6 source electrode.
3. high voltage power supply converter anti-jamming circuit according to claim 2, it is characterised in that the triode V1~V4
It is NPN type triode.
4. high voltage power supply converter anti-jamming circuit according to claim 2, it is characterised in that when the driving of driver element
Signal output part A and drive signal output end B simultaneously output drive signal when, triode V3 and triode V4 are due to triode V1
Control with V2 and close, realize the protection of bridge arm unit.
5. high voltage power supply converter anti-jamming circuit according to claim 2, it is characterised in that by adjust resistance R1~
R4 resistance can control the driving current size that drive signal is exported, and the driving current is used to control at triode V1~V4
In open/close state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710529629.9A CN107171542A (en) | 2017-07-02 | 2017-07-02 | A kind of high voltage power supply converter anti-jamming circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710529629.9A CN107171542A (en) | 2017-07-02 | 2017-07-02 | A kind of high voltage power supply converter anti-jamming circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107171542A true CN107171542A (en) | 2017-09-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710529629.9A Pending CN107171542A (en) | 2017-07-02 | 2017-07-02 | A kind of high voltage power supply converter anti-jamming circuit |
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| CN (1) | CN107171542A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108900080A (en) * | 2018-07-12 | 2018-11-27 | 明纬(广州)电子有限公司 | Resonance control apparatus |
| CN110829849A (en) * | 2019-11-08 | 2020-02-21 | 济宁学院 | Frequency modulation topology no-load control circuit and control method thereof |
| CN114039478A (en) * | 2022-01-07 | 2022-02-11 | 石家庄国耀电子科技有限公司 | Special silent power supply for high-power radar |
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| JP2009183059A (en) * | 2008-01-30 | 2009-08-13 | Fuji Electric Device Technology Co Ltd | Noise elimination circuit, signal transmission circuit using isolation transformer, and power converter |
| CN202309529U (en) * | 2011-11-03 | 2012-07-04 | 东文高压电源（天津）有限公司 | Quasi-resonant semi-bridge power circuit having adjustable high voltage |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108900080A (en) * | 2018-07-12 | 2018-11-27 | 明纬(广州)电子有限公司 | Resonance control apparatus |
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| CN110829849A (en) * | 2019-11-08 | 2020-02-21 | 济宁学院 | Frequency modulation topology no-load control circuit and control method thereof |
| CN110829849B (en) * | 2019-11-08 | 2020-12-25 | 济宁学院 | Frequency modulation topology no-load control circuit and control method thereof |
| CN114039478A (en) * | 2022-01-07 | 2022-02-11 | 石家庄国耀电子科技有限公司 | Special silent power supply for high-power radar |
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Application publication date: 20170915 |