CN106054261A - Time-domain heavy-current aviation electromagnetic emission apparatus - Google Patents
Time-domain heavy-current aviation electromagnetic emission apparatus Download PDFInfo
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- CN106054261A CN106054261A CN201610532304.1A CN201610532304A CN106054261A CN 106054261 A CN106054261 A CN 106054261A CN 201610532304 A CN201610532304 A CN 201610532304A CN 106054261 A CN106054261 A CN 106054261A
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- igbt
- diode
- electric capacity
- major loop
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
- G01V3/08—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices
- G01V3/10—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices using induction coils
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- 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
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- 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
- H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
- H02M5/40—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc
- H02M5/42—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters
- H02M5/44—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac
- H02M5/453—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal
- H02M5/458—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases with intermediate conversion into dc by static converters using discharge tubes or semiconductor devices to convert the intermediate dc into ac using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
Abstract
The invention discloses a time-domain heavy-current aviation electromagnetic emission apparatus. The apparatus comprises a control module and a large-power main loop module, wherein the large-power main loop module comprises an LC resonance full-bridge inversion major loop and a constant-power charge major loop, the LC resonance full-bridge inversion major loop comprises capacitors and an emission coil, the control module controls the constant-power charge major loop to charge the capacitors, after charging is completed, the capacitors supply electric energy to the emission coil, emission currents are generated in the emission coil, after discharging of the capacitors is finished, the control module controls the emission coil to reversely charge the capacitors so as to recover and utilize residual electric energy of the emission coil, and after the electric energy of the emission coil is completely discharged, the constant-power charge major loop continuously charges the capacitors, such that residual electric energy resources are saved, the weight of the time-domain heavy-current aviation electromagnetic emission apparatus is reduced, and the purpose of large-magnetic-moment emission is realized.
Description
Technical field
The present invention relates to aerospace detection field, be more particularly to a kind of time domain big electric current aviation electromagnetic discharger.
Background technology
Time domain aviation electromagnetic exploration system (ATEM) is one of airborne geophysical prospecting method.ATEM is mounted on aircraft platform
Transient electromagnetic exploration system, by flight operation, it is achieved quick detection and the identification to subterranean resource, there is low cost, speed
The feature that degree is fast, road ability is good, can be used for a varied topography, earth's surface and is quickly commented by the resource of the target area of the area of coverage such as vegetation, desert
Valency, and large-area resource investigation can be carried out.Time domain aviation electromagnetic exploration system is owing to using earth-free power supply mode (line
Circle), magnetic moment increase depth of exploration can be launched by directly increasing, improve the quality of data.Time domain aviation electromagnetic exploration system
By passing to the electric current of time-varying in transmitting coil, send transient magnetic field (primary field) to underground, excite underground good conductor to induct
Vortex current (secondary faradic current), during switch off current, (off-time) produces secondary field (the secondary faradism of decay
Pressure), by receiving coil and data acquiring and recording each component all-wave induced voltage.Secondary field owing to receiving is situated between by underground
The electromagnetic signature impact of matter, therefore is analyzed induced voltage studying i.e. can get the dielectric constant of underground medium, electrical conductivity
With important parameters such as pcrmeabilities such that it is able to according to spatial distribution and the morphological characteristic of the parameter determination underground ore bodies obtained.
In order to increase the investigation depth of system, need improve time domain aviation electromagnetic exploration system electromagnetics transmitter send out
Penetrate magnetic moment, in order to realize big transmitting magnetic moment, need raising emission current, increase to launch power and realize big transmitting magnetic moment.For
This, it is provided that the emission current of upper kiloampere is the key technology that aviation electromagnetic launches field.But, along with electromagnetics transmitter
Launch magnetic moment increase, i.e. the increase of power, the weight of the emission system of whole time domain aviation electromagnetic exploration system and body
Amass and be also continuously increased, limited by the payload of the flying platform of lift-launch system, improve equipment utilization to greatest extent
Rate, the weight reducing equipment on the premise of ensureing to launch magnetic moment is a skill that solution is presently required of aviation electromagnetic transmitter
Art problem.
Although time domain aviation electromagnetic transmitted waveform is had nothing in common with each other, but transmitted waveform is discontinuous mode, i.e. transmitter is sent out
Penetrate a waveform, suspend a period of time, launch the most again, circulate successively, periodic transmission.When transmitter output waveform, send out
Penetrate machine output electric current to transmitting coil, externally export energy, when transmitter not output waveform, i.e. receiver reception secondary field signal
Period, transmitter does not export electric current, does not the most export energy.According to above-mentioned emission mode, transmitter interval exports relatively Gao Gong
, if the electric energy directly utilizing power supply offer exports, there is the problem that equipment utilization is insufficient in rate.Launch antenna typically to adopt
Using wire coiling, its external electrical characteristic is equivalent to inductance, inductive load is launched pulse current, there is dump energy
The problem reclaimed.
Summary of the invention
The technical problem to be solved in the present invention is the most farthest to improve the utilization rate of discharger, in equivalent weight
With bigger transmitting magnetic moment is provided under volume.
In order to solve above-mentioned technical problem, the invention provides a kind of time domain big electric current aviation electromagnetic discharger, institute
State device and include control module and high-power main loop module；Described high-power main loop module includes LC resonant full bridge inversion
Major loop, invariable power charging major loop, signal deteching circuit and drive circuit；Described LC resonant full bridge inversion major loop includes
First electric capacity and transmitting coil, described first electric capacity is connected with described transmitting coil；
Described testing circuit and described invariable power charging major loop and described control module are connected, described control module and
Described drive circuit connects, and described drive circuit is led back with described LC resonant full bridge inversion major loop and the charging of described invariable power
Road connects, and described invariable power charging major loop is connected with described LC resonant full bridge inversion major loop；Described testing circuit detects institute
State the busbar voltage of invariable power charging major loop, and pass to described control module, by described control module according to described permanent merit
The busbar voltage of rate charging major loop determines whether to generate stopping charge command, if described control module generates described stopping charging
Order, described stopping charge command being sent to described drive circuit by the most described control module, described drive circuit control institute
State invariable power charging major loop and stop the first electric capacity charging to described LC resonant full bridge inversion major loop；Wherein said invariable power
The busbar voltage of charging major loop is equal with the voltage at described first electric capacity two ends；After described first electric capacity charging complete, it is
Described transmitting coil provides electric energy, by described transmitting coil emission current；
Described testing circuit is connected with described LC resonant full bridge inversion major loop, and described testing circuit detects described transmitting line
Emission current in circle, and it is sent to described control module, described control module is according to the bus electricity of invariable power charging major loop
The electric current at pressure and ray circle two ends determines whether to generate reverse charging order, if described control module generates described reverse charging
Order, described reverse charging order is sent to described drive circuit by the most described control module, described drive circuit control institute
State transmitting coil to be charged to described first electric capacity.
Preferably, described control module includes that the first order generates submodule, and described first order generates submodule and judges
The busbar voltage of described invariable power charging major loop whether more than or equal to preset value, the most then generates described stopping charging life
Order.
Preferably, described control module includes that the second order generates submodule, and described second order generates submodule and judges
Whether the busbar voltage of described invariable power charging major loop is zero and whether emission current in described transmitting coil reaches peak
Value, the most described second order generates submodule and generates described reverse charging order.
Preferably, described control module also includes that the 3rd order generates submodule, and described 3rd order generates submodule and sentences
Whether the electric current at disconnected described transmitting coil two ends is zero, and the most described 3rd order generates submodule generation and starts to charge up life
Make and pass to described drive circuit, drive circuit to described LC resonant full bridge controlling described invariable power charging major loop
First electric capacity charging of inversion major loop.
Preferably, described control module also includes that the 4th order generates submodule and the 5th order generation module；Described
After first electric capacity charging complete, the electric current that described control module is launched according to described transmitting coil before described first electric capacity charging
The electric polarity of waveform, is generated submodule by the 4th order or the 5th order generation module generates positive polarity sine wave order or negative pole
Property sine wave order to described drive circuit, drive circuit controlling described transmitting coil, to launch positive polarity sinusoidal wave or negative
Polarity is sinusoidal wave；Before the electric polarity of the current waveform wherein launched under current driver circuit control charges with described first electric capacity
The electric polarity of the waveform of the electric current that described transmitting coil is launched is contrary.
Preferably, described LC resonant full bridge inversion major loop also include an IGBT, the 2nd IGBT, the 3rd IGBT, the 4th
IGBT, the 5th IGBT, the 6th IGBT, the first diode, the second diode, the 3rd diode, the 4th diode, the five or two pole
Pipe, the 6th diode and resistance；
The positive pole of described first diode connects the emitter stage of a described IGBT, and the negative pole of described first diode connects
The colelctor electrode of a described IGBT；The emitter stage of positive pole described 2nd IGBT of connection of described second diode, the described 2nd 2
The negative pole of pole pipe connects the colelctor electrode of described 2nd IGBT；The positive pole of described 3rd diode connects the transmitting of described 3rd IGBT
Pole, the negative pole of described 3rd diode connects the colelctor electrode of described 3rd IGBT；The positive pole of described 4th diode connects described
The emitter stage of the 4th IGBT, the negative pole of described 4th diode connects the colelctor electrode of described 4th IGBT；Described 5th diode
Positive pole connect the emitter stage of described 5th IGBT, the negative pole of described 5th diode connects the colelctor electrode of described 5th IGBT；
The positive pole of described 6th diode connects the emitter stage of described 6th IGBT, and the negative pole of described 6th diode connects the described 6th
The colelctor electrode of IGBT；
The colelctor electrode of described 5th IGBT connects described invariable power charging major loop, and the emitter stage of described 5th IGBT connects
One end of described first electric capacity and the colelctor electrode of described 6th IGBT, the other end of described first electric capacity connects described invariable power
Charging major loop；The emitter stage of described 6th IGBT connects colelctor electrode and the colelctor electrode of the 3rd IGBT of a described IGBT,
One end of the emitter stage described transmitting coil of connection of a described IGBT and the colelctor electrode of described 2nd IGBT, described second
The emitter stage of IGBT connects the other end of described first electric capacity；The other end of described transmitting coil connects one end of described resistance,
The other end of described resistance connects emitter stage and the colelctor electrode of the 4th IGBT of described 3rd IGBT；Described 4th IGBT sends out
Emitter-base bandgap grading connects the other end of described first electric capacity.
Preferably, described invariable power charging major loop includes that power supply, high-frequency inverter circuit, high frequency transformer and high frequency are whole
Current circuit；Described high frequency transformer includes positive limit winding and several vice-side winding；
Described power supply is connected with described high-frequency inverter circuit, and the DC source of described power supply is turned by described high-frequency inverter circuit
It is changed to high-frequency alternating current；
Described positive limit winding is connected with described high-frequency inverter circuit, and described high-frequency rectification circuit is with described vice-side winding even
Connecing, described high-frequency alternating current is boosted to scheduled voltage by described high frequency transformer, and described high-frequency rectification circuit is secondary by several
The output of limit winding is cascaded after carrying out rectification.
Preferably, described high-frequency inverter circuit include the 7th IGBT, the 8th IGBT, the 9th IGBT, the tenth IGBT, the seven or two
Pole pipe, the 8th diode, the 9th diode, the tenth diode, the second electric capacity, the 3rd electric capacity, the 4th electric capacity, the 5th electric capacity and
6th electric capacity；
The colelctor electrode of described 7th IGBT and the negative pole of described 7th diode, one end of the 3rd electric capacity, the described 8th
One end of the colelctor electrode of IGBT, the negative pole of the 8th diode and the 4th electric capacity connects；
The emitter stage of described 7th IGBT and the colelctor electrode of described 9th IGBT, the positive pole of the 7th diode, the 3rd electric capacity
The other end, the negative pole of the 9th diode, one end of the 5th electric capacity and described positive limit winding one end connect；Described positive limit around
The other end of group is connected with one end of described second electric capacity；
The emitter stage of described 8th IGBT and the colelctor electrode of described tenth IGBT, the positive pole of described 8th diode, described
The other end of the 4th electric capacity, negative pole, one end of the 6th electric capacity and the other end of described second electric capacity of described tenth diode
Connect；
The emitter stage of described 9th IGBT and the positive pole of described 9th diode, the other end of the 5th electric capacity, the tenth IGBT
Emitter stage, the positive pole of the tenth diode and the 6th electric capacity the other end connect.
Preferably, described high-frequency rectification circuit includes several rectification units and an inductance, each described rectification list
Unit is connected in series；
Each described rectification unit the most all includes four diodes, and wherein each two Diode series forms two branch roads,
And said two branch circuit parallel connection connects formation rectification unit, each described vice-side winding is respectively with a described rectification unit even
Connect, and the two ends of described vice-side winding be connected to correspondence rectification unit two branch roads two Diode series even
The position connect；
One end of described inductance connects the negative pole of the diode of a described rectification unit, and the other end of described inductance connects
One end of described first electric capacity.
Preferably, described control module includes that invariable power charging controls submodule；The detection of described testing circuit also detects institute
State the electric current of invariable power charging major loop；
The invariable power charging major loop that described invariable power charging control submodule obtains according to the detection of described testing circuit
Busbar voltage and Current calculation obtain the output of described invariable power charging major loop, and lead back according to the charging of described invariable power
The difference of the output on road and predetermined power generates the control signal of corresponding pulses width, and utilizes described control signal to control
Described 7th IGBT, the 8th IGBT, the 9th IGBT and the conducting of the tenth IGBT and shutoff, it is achieved the charging of described invariable power is led back
The constant power output on road.
The invention provides a kind of time domain big electric current aviation electromagnetic discharger, the inventive system comprises control module
And high-power main loop module, the most high-power main loop module includes that LC resonant full bridge inversion major loop and invariable power fill
Electricity major loop, LC resonant full bridge inversion major loop includes electric capacity and transmitting coil, and control module controls invariable power charging
Major loop is that electric capacity is charged, and after charging complete, electric capacity provides electric energy for transmitting coil, produces and launch electricity in transmitting coil
Stream, after electric capacity electric discharge terminates, control module control transmitting coil is to electric capacity reverse charging, remaining to recycle transmitting coil
Electric energy, is continued as electric capacity charging by invariable power charging major loop after the electric energy release completely of transmitting coil, it is achieved thereby that save
Dump energy resource, alleviates the weight of time domain big electric current aviation electromagnetic discharger, it is achieved the purpose that big magnetic moment is launched.Simultaneously
The invention also achieves bi-polar half sine wave Electromagnetic Launching, utilize LC resonance principle to produce sinusoidal wave form, pass through full-bridge inverting
Technology realizes the Discrete control of waveform, it is achieved waveform produces the function with energy regenerating.Utilize power limitation control technology, for resonance
Electric capacity supplements energy, makes the utilization rate of power supply reach optimum, reduces the weight and volume of emission system, it is ensured that whole aviation electromagnetic
While the weight of discharger is less than the scope that can bear, farthest increases and launch magnetic moment.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to
Other accompanying drawing is obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the time domain big electric current aviation electromagnetic discharger of a preferred embodiments of the present invention；
Fig. 2 be the present invention high-power main loop module in LC resonant full bridge inversion major loop and invariable power charge major loop
Connection diagram；
Fig. 3 is the circuit diagram of the LC resonant full bridge inversion major loop of the present invention；
Fig. 4 is the circuit diagram of the invariable power charging major loop of the present invention；
Fig. 5 A, 5B, 5C are the waveform diagram of the double polarity sine ripple of 25HZ, 75HZ, 125HZ in the present invention；
Fig. 6 is the circuit diagram of the high-voltage DC power supply of band current-limiting resistance in prior art；
Fig. 7 is the circuit diagram of resonant charging power supply in prior art；
Fig. 8 is the circuit diagram of prior art medium-high frequency changer charge power supply；
Fig. 9 A, 9B are the charging schematic diagrams in the present invention under 25HZ waveform；
Figure 10 A, 10B are the charging schematic diagrams in the present invention under 75HZ waveform；
Figure 11 A, 11B are the charging schematic diagrams in the present invention under 125HZ waveform；
Figure 12 is the power limitation control schematic diagram of invariable power charging major loop in the present invention.
Detailed description of the invention
With embodiment, the present invention is described in further detail below in conjunction with the accompanying drawings.Following example are used for this is described
Bright, but can not be used for limiting the scope of the present invention.
A kind of time domain big electric current aviation electromagnetic discharger, as it is shown in figure 1, described device includes control module and big
Power main loop module；Described high-power main loop module include LC resonant full bridge inversion major loop, invariable power charging major loop,
Signal deteching circuit and drive circuit；Described LC resonant full bridge inversion major loop includes the first electric capacity and transmitting coil, institute
State the first electric capacity to be connected with described transmitting coil.
As it is shown in figure 1, described testing circuit is connected with described invariable power charging major loop and described control module, described
Control module is connected with described drive circuit, described drive circuit and described LC resonant full bridge inversion major loop and described permanent merit
Rate charging major loop connects, and described invariable power charging major loop is connected with described LC resonant full bridge inversion major loop；Described detection
The busbar voltage of invariable power charging major loop described in electric circuit inspection, and pass to described control module, by described control module root
Determine whether to generate according to the busbar voltage of described invariable power charging major loop and stop charge command, if described control module generates institute
Stating stopping charge command, described stopping charge command being sent to described drive circuit by the most described control module, by described driving
Circuit controls described invariable power charging major loop and stops the first electric capacity charging to described LC resonant full bridge inversion major loop；Wherein
The busbar voltage of described invariable power charging major loop is equal with the voltage at described first electric capacity two ends；Described first electric capacity has charged
Cheng Hou, it provides electric energy for described transmitting coil, produces emission current in described transmitting coil.
Described testing circuit is connected with described LC resonant full bridge inversion major loop, and described testing circuit detects described transmitting line
Emission current in circle, and it is sent to described control module, described control module is according to the bus electricity of invariable power charging major loop
Emission current in pressure and ray circle determines whether to generate reverse charging order, reversely fills if the generation of described control module is described
Electricity order, described reverse charging order is sent to described drive circuit, described drive circuit controls by the most described control module
Described transmitting coil is charged to described first electric capacity.
Wherein, described control module includes that the first order generates submodule, and described first order generates submodule and judges institute
Whether the busbar voltage stating invariable power charging major loop is more than or equal to preset value, the most then generate described stopping charge command.
Described control module includes that the second order generates submodule, and described second order generates submodule and judges described permanent merit
Whether the busbar voltage of rate charging major loop is zero and whether emission current in described transmitting coil reaches peak value, if so,
The most described second order generates submodule and generates described reverse charging order.
Described control module also includes that the 3rd order generates submodule, and described 3rd order generates submodule and judges described sending out
Whether the emission current in ray circle is zero, and the most described 3rd order generates submodule generation and starts to charge up order and pass
Pass described drive circuit, drive circuit to described LC resonant full bridge inversion master controlling described invariable power charging major loop
The first electric capacity charging in loop.
Described control module also includes that the 4th order generates submodule and the 5th order generation module；Described first electric capacity
After charging complete, the electricity of the waveform of the electric current that described control module is launched according to described transmitting coil before described first electric capacity charging
Polarity, is generated submodule by the 4th order or the 5th order generation module generates positive polarity sine wave order or negative polarity is sinusoidal wave
Order to described drive circuit, drive circuit control described transmitting coil transmitting positive polarity sine wave or negative polarity is sinusoidal
Ripple；Described transmitting before the electric polarity of the current waveform wherein launched under current driver circuit control and described first electric capacity charging
The electric polarity of the waveform of the electric current of coil transmissions is contrary.
Said apparatus can recycle the remaining electric energy of transmitting coil, by permanent merit after the electric energy release completely of transmitting coil
Rate charging major loop continues as electric capacity charging, it is achieved thereby that save dump energy resource, alleviates time domain big electric current aviation electricity
The weight of magnetic discharger, it is achieved the purpose that big magnetic moment is launched.Said apparatus also achieves bi-polar half sine wave electromagnetism simultaneously
Launch, utilize LC resonance principle to produce sinusoidal wave form, realized the Discrete control of waveform by full-bridge inverting technology, it is achieved waveform produces
The raw function with energy regenerating.Utilize power limitation control technology, supplement energy for resonant capacitance, make the utilization rate of power supply reach
Excellent, reduce the weight and volume of emission system, it is ensured that the weight of whole aviation electromagnetic discharger is less than the model that can bear
While enclosing, farthest increase and launch magnetic moment.
Further, as it is shown in figure 1, high-power main loop module also includes electromotor, electromotor is main with invariable power charging
Loop one stage signal testing circuit connects；The voltage of signal deteching circuit detection electromotor, and pass to control module.Control mould
Tuber judges whether superpressure according to the voltage of electromotor, if superpressure is issued by alarm or stops electrical power generators.
Further, as it is shown in figure 1, control module includes DSP control unit, the control of above-mentioned control module operation by
DSP control unit completes.Control module also includes synchronous circuit and RCI；Time domain big electric current aviation electromagnetic is sent out
Injection device also includes operation interface module, and operation interface module includes that external sync submodule, GPRS submodule, system control life
Make submodule, configuration information configuration submodule and unit state output sub-module.Operation interface module externally provide control and
Information output interface, can realize the external sync of transmitted waveform, remotely operation, remote status monitoring etc. by operation interface module
Function.DSP control unit uses the TMS320F28335 that TI company produces.High-power main loop module is by aircraft airborne electricity
The transmitted waveform that the transformation of electrical energy that source or electromotor provide is required exports in transmitting antenna.
Further, as it is shown on figure 3, described LC resonant full bridge inversion major loop also includes an IGBT S1, the 2nd IGBT
S2, the 3rd IGBT S3, the 4th IGBT S4, the 5th IGBT S5, the 6th IGBT S6, the first diode D1, the second diode D2,
3rd diode D3, the 4th diode D4, the 5th diode D5, the 6th diode D6 and resistance R.
The positive pole of described first diode D1 connects the emitter stage of a described IGBT S1, described first diode D1's
Negative pole connects the colelctor electrode of a described IGBT S1；The positive pole of described second diode D2 connects sending out of described 2nd IGBT S2
Emitter-base bandgap grading, the negative pole of described second diode D2 connects the colelctor electrode of described 2nd IGBT S2；The positive pole of described 3rd diode D3
Connecting the emitter stage of described 3rd IGBT S3, the negative pole of described 3rd diode D3 connects the current collection of described 3rd IGBT S3
Pole；The positive pole of described 4th diode D4 connects the emitter stage of described 4th IGBT S4, and the negative pole of described 4th diode D4 is even
Connect the colelctor electrode of described 4th IGBT S4；The positive pole of described 5th diode D5 connects the emitter stage of described 5th IGBT S5,
The negative pole of described 5th diode D5 connects the colelctor electrode of described 5th IGBT S5；The positive pole of described 6th diode D6 connects
The emitter stage of described 6th IGBT S6, the negative pole of described 6th diode D6 connects the colelctor electrode of described 6th IGBT S6.
The colelctor electrode of described 5th IGBT S5 connects described invariable power charging major loop, i.e. connects invariable power charging and leads back
The current input terminal on road, the charging voltage of invariable power charging major loop is Udc, the emitter stage of described 5th IGBT S5 connects described
One end of first electric capacity C1 and the colelctor electrode of described 6th IGBT S6, the other end of described first electric capacity C1 connects described perseverance
Power charging major loop；The emitter stage of described 6th IGBT S6 connects colelctor electrode and the 3rd IGBT of a described IGBT S1
The colelctor electrode of S3, the emitter stage of a described IGBT S1 connects one end of described transmitting coil L and described 2nd IGBT S2
Colelctor electrode, the emitter stage of described 2nd IGBT S2 connects the other end of described first electric capacity C1；Described transmitting coil L's is another
One end connects one end of described resistance R, and the other end of described resistance R connects the emitter stage and the 4th of described 3rd IGBT S3
The colelctor electrode of IGBT S4；The emitter stage of described 4th IGBT S4 connects the other end of described first electric capacity C1.
LC resonant full bridge inversion major loop by resonant capacitance group (as shown in Figure 2), inverter bridge (by S1, S2, S3, S4, D1,
D2, D3, D4 form), launch antenna (including L, R) and DC power portion be grouped into.S1, S2, S3, S4, S5, S6 are high-power
IGBT module, each IGBT module carries an anti-paralleled diode.S1-S4 forms full-bridge circuit, and S5, S6 control resonance respectively
The conducting in loop and energy supplement loop and shutoff.Resonant capacitance constitutes LC resonance with transmitting coil, can change by controlling switch
Become the capacitance accessed in circuit, and then change output frequency.Four IGBT constitute inverter bridge, inverter bridge and resonant capacitance it
Between connected by an IGBT, i.e. S6, control module realizes the Discrete control of waveform by combining different switch mode.
The logic control signal that DSP control unit produces can effectively control conducting and the cut-off of IGBT.As S5 conducting, S6
During shutoff, DC source is resonant capacitance charging；When S5 closedown, S6 conducting, resonant capacitance is consisted of with transmitting coil H bridge
Resonant tank.When S1, S4 turn on, load current is just, when S2, S3 turn on, load current is negative, obtain positive and negative alternately
Bipolar waveform.
Specifically, LC resonant full bridge inversion major loop operation principle is:
1, switch S5 conducting, S6 close, and power supply forward is powered, and charge resonant capacitance C1；
2, switch S5 cut-off, during S6, S1, S4 conducting, power supply stops power supply, and electric capacity C1 and transmitting coil L and R constitutes resonance and return
Road, coil inductance is discharged by electric capacity C1 by S6, S1, S4, produces positive polarity sinusoidal current waveform, electric capacity C1 in transmitting coil
In electric field energy be converted to the magnetic field energy in transmitting coil, capacitance voltage is gradually lowered, loop current press sine curve rise.
3, reducing to zero when electric capacity both end voltage, when loop current reaches peak value, closing switch S6, S1, S4, then in inductance L
Dump energy constitutes loop by the anti-paralleled diode of S3, S2, S6 with electric capacity C1, starts to be charged C1, on inductance
Electric current is gradually reduced, and electric capacity both end voltage is gradually increased；
4, the current reduction in coil L is zero, and transmitting coil remains off.Due to resonant tank internal resistance and electromagnetism
The existence of Flied emission loss, needs after resonance to supplement energy for resonant capacitance C1, now opens charge switch S5, and DC source will
Electric capacity both end voltage rises to resonance required voltage；
6, during resonant capacitance charging complete, the transmitting cycle that a positive polarity is sinusoidal wave is completed.Now repeat previous step
In 1-4, the conducting in full-bridge radiating circuit is switched and is changed into S2, S3 by S1, S4, then launch negative polarity sine wave electricity
Stream, completes negative polarity sine wave and launches.
7, so far, a complete impulse ejection cycle completes.
In each transmitting cycle, resonant capacitance exchanges primary energy with inductance (transmitting antenna), i.e. before resonance starts, electricity
Holding and be complete energy supplement, voltage is default voltage, by the on off state of control combination IGBT, control resonant capacitance with
Inductive emitter resonance.First, electric capacity transfers energy in inductance, when the energy in electric capacity is transferred completely in inductance, this
Time disconnect resonant tank, the energy in inductance is charged to electric capacity by the anti-paralleled diode of IGBT, and energy is collected back resonance
In electric capacity.Full-bridge inverting launching circuit based on IGBT achieves replacing of emission current waveform positive-negative polarity, realizes sending out simultaneously
The recovery of dump energy in ray circle, improves efficiency and the power density of device.Owing to resonant tank and transmitting antenna being deposited
Certain energy loss is there is, it is therefore desirable to utilize invariable power charging major loop to carry out energy in D.C. resistance, resonant process
Supplement.
Fig. 2 be the present invention high-power main loop module in LC resonant full bridge inversion major loop and invariable power charge major loop
Connection diagram, as can be seen from the figure: the first electric capacity could be arranged to multiple, such as, be set to 3, each electric capacity is all joined
Put a switch to be controlled.
Time domain big electric current aviation electromagnetic discharger by emission current is injected transmitting coil, by coil-induced go out
Transient electromagnetic field, preferable transmitted waveform is square-wave waveform, and the frequency signal comprised enriches.But, transmitting coil is that perception is negative
Carrying, the physical property of inductance determines the electric current flowing through in inductance and cannot break through, and compared with square wave, uses key player on a team's waveform to be easier to
Realize hundreds of ampere and even go up the big electric current of kiloampere, thus realize big transmitting magnetic moment and big investigation depth.
The transmitted waveform of assembly of the invention is bi-polar half sine wave, and Fig. 5 A, 5B, 5C give transmitting fundamental frequency and be respectively
Transmitted waveform signal when 25Hz, 75Hz, 125Hz.
Fundamental frequency 25Hz, half-wave pulsewidth 1/2/25=20ms=4ms semisinusoidal+16ms power-off；
Fundamental frequency 75Hz, half-wave pulsewidth 1/2/75=6.667ms=2ms semisinusoidal+4.6667 power-off, not trapezoidal wave；
Fundamental frequency 125Hz, half-wave pulsewidth 1/2/125=4ms=1ms semisinusoidal+3ms power-off, not trapezoidal wave.
Owing to resonant tank and transmitting antenna existing D.C. resistance, resonant process exists certain energy loss,
The energy that each periodic resonance stores in electric capacity after completing decreases a part, the effect of invariable power charging major loop than before resonance
Being exactly within the time period of not transmitted waveform, in the energy supplement reduce electric capacity, the resonance for next cycle is prepared.Mesh
Front capacitor charging power supply can be roughly divided into following three classes: 1, the high-voltage DC power supply of band current-limiting resistance, as shown in Figure 6；2、
Resonant charging power supply, as it is shown in fig. 7, alternating current input power supplying utilizes transformer boost, produces HVDC after over commutation, filtering
Electricity U0 switch T1 triggers after current and flows through inductance LL and diode DD1, transmits energy to CC1.3, high-frequency converter charge power supply,
As shown in Figure 8.In conjunction with the advantage of above-mentioned prior art and the technical characterstic of aviation electromagnetic transmitter, the charging of following invariable power is proposed
The scheme of major loop:
Described invariable power charging major loop includes power supply, high-frequency inverter circuit, high frequency transformer and high-frequency rectification circuit；
Described high frequency transformer includes positive limit winding and several vice-side winding.Described power supply is connected with described high-frequency inverter circuit,
The DC source of described power supply is converted to high-frequency alternating current by described high-frequency inverter circuit；Described positive limit winding is inverse with described high frequency
Power transformation road connects, and described high-frequency rectification circuit is connected with described vice-side winding, and described high frequency transformer is by described high-frequency alternating current
Boosting to scheduled voltage, described high-frequency rectification circuit is cascaded after the output of several vice-side winding is carried out rectification.
As shown in Figure 4, described high-frequency inverter circuit include the 7th IGBT S7, the 8th IGBT S8, the 9th IGBT S9,
Ten IGBT S10, the 7th diode D7, the 8th diode D8, the 9th diode D9, the tenth diode D10, the second electric capacity C2,
Three electric capacity C3, the 4th electric capacity C4, the 5th electric capacity C5 and the 6th electric capacity C6；
The colelctor electrode of described 7th IGBT S7 and the negative pole of described 7th diode D7, one end of the 3rd electric capacity C3, described
One end of the colelctor electrode of the 8th IGBT S8, the negative pole of the 8th diode D8 and the 4th electric capacity C4 connects；
The emitter stage of described 7th IGBT S7 and the colelctor electrode of described 9th IGBT S9, the positive pole of the 7th diode D7,
The other end of the 3rd electric capacity C3, the negative pole of the 9th diode D9, one end of the 5th electric capacity C5 and one end of described positive limit winding
Connect；The other end of described positive limit winding is connected with one end of described second electric capacity C2；
The emitter stage of described 8th IGBT S8 and the colelctor electrode of described tenth IGBT S10, described 8th diode D8
Positive pole, the other end of described 4th electric capacity C4, the negative pole of described tenth diode D10, one end of the 6th electric capacity C6 and described
The other end of the second electric capacity C2 connects；
The emitter stage of described 9th IGBT S9 and the positive pole of described 9th diode D9, the other end of the 5th electric capacity C5, the
The other end of the emitter stage of ten IGBT S10, the positive pole of the tenth diode D10 and the 6th electric capacity C6 connects.
As shown in Figure 4, described high-frequency rectification circuit includes several rectification units and an inductance L1, and each is described whole
Stream unit is connected in series；Each described rectification unit the most all includes four diodes, and wherein each two Diode series forms two
Individual branch road, and said two branch circuit parallel connection connection formation rectification unit, each described vice-side winding is described with one whole respectively
Stream unit connects, and the two ends of described vice-side winding are connected to two two poles of two branch roads of rectification unit of correspondence
The position that pipe is connected in series；One end of described inductance connects the negative pole of the diode of a described rectification unit, described inductance
The other end connects one end of described first electric capacity.
The input power of invariable power charging major loop can be the airborne power supply of flying platform, it is also possible to be the three-phase carried
Generating set, alternating current is converted to unidirectional current through current rectifying and wave filtering circuit, if airborne power supply provides unidirectional current, the most permissible
Save rectification circuit.Directly power supply is converted to high-frequency alternating current via high-frequency inverter circuit, boosts to institute by high frequency transformer
After the voltage needed, then be converted to required unidirectional current via high-frequency rectification circuit.Wherein high-frequency inverter circuit uses by 4
The full bridge inverter of IGBT composition, for exporting higher voltage, transformer secondary is designed as many according to the needs of output voltage
Individual vice-side winding, is cascaded after output rectification, it is achieved High voltage output.DSP control unit is by regulating the conducting of 4 IGBT
The control to capacitor charge power is controlled with shutoff.
The calculating of the invariable power charging of above-mentioned invariable power charging major loop is specific as follows:
Electric capacity charges in two kinds of situation: the first time charging process before 1, start is launched；2, the energy in emission process is mended
Fill formula charging.The first situation, electric capacity initial voltage is 0, and charge power supply is equivalent to short-circuit conditions.Charging interval and charging effect
Rate requires loose.The second situation, in emission process, after electric capacity and inductance resonance, due to the existence of loop D.C. resistance
And the existence of the situation such as coil and inductive coupling greatly, in resonant process, inevasible existence is lost, electricity after resonance
Holding voltage to reduce, in the time interval do not launched, charger is by the energy supplement of resistance consumption.
Computing formula:
pR(t)=u (t) * i (t)=Ri2(t)
In formula, PLT () represents the power that the inductance of transmitting coil partially absorbs, PRT () represents active component in launching circuit
Power consumption, u (t) and i (t) represent the voltage and current that respective devices is above-mentioned respectively, and the electric current of transmitting coil is reached peak by 0
Energy during value is provided by capacitor, and this part energy is converted into energy and the loop resistance heating consumption of inductance storage
Energy.
The energy of resonance initial time electric capacity needs storage and voltage:
Electric current reaches peak value moment, and in electric capacity, both end voltage is 0, and in electric capacity, energy exhausts.Inductance as energy source,
Charge to electric capacity, and part energy is lost on loop resistance.
Remaining energy in electric capacity after resonance:
According to emission current waveform shown in Fig. 5 A, 5B, 5C, emission peak electric current 1200A, launch inductance 550uH, electricity
Resistance 23m Ω, following data table 1 gives the result of calculation under three kinds of frequencies:
Table 1
Capacitor charging process:
Invariable power charges, and charge power is P (i.e. output power of power supply), then charging voltage equation is:
Obtain the analytic expression of voltage u (t) of capacitor:
The analytic expression of the electric current of capacitor:
Charging curve is as shown in Fig. 9 A, 9B, 10A, 10B, 11A, 11B.
Further, described control module includes that invariable power charging controls submodule；The detection of described testing circuit also detects
The electric current of described invariable power charging major loop；The charging of described invariable power controls what submodule obtained according to the detection of described testing circuit
The invariable power charging busbar voltage of major loop and Current calculation obtain the output of described invariable power charging major loop, and according to
The output of described invariable power charging major loop and the difference of predetermined power generate the control signal of corresponding pulses width, and profit
Described 7th IGBT, the 8th IGBT, the 9th IGBT and the conducting of the tenth IGBT and shutoff is controlled by described control signal, it is achieved
The constant power output of described invariable power charging major loop.
Such as, the output p of high-frequency rectification circuito(t), output voltage uoT (), exports electric current io(t), dutycycle D.
Power supply controlled quentity controlled variable is dutycycle D, directly determines output parameter uo(t), the output p of high-frequency rectification circuito(t)。
po(t)=uo(t)×io(t)
It is output P that input controls targetC, the most above-mentioned predetermined power, this value is obtained by early stage Theoretical Calculation.Control
Error is
E (t)=PC-po(t)=PC-uo(t)×io(t)
Dutycycle, or above-mentioned control signal is determined according to controlling error.
Figure 12 is the power limitation control schematic diagram of invariable power charging major loop in the present invention, after high-frequency rectification circuit output
The real output of the invariable power charging major loop of correspondence it is calculated, by actual output after voltage, current signal collection
Power and target power, the difference between the most above-mentioned predetermined power is as control variable；Then generate corresponding according to control variable
The pulse signal of pulse width, i.e. control signal；It is main that the pulse signal finally using this pulse width controls invariable power charging
High-frequency inverter circuit in loop, to ensure to be exported the charge power of resonant capacitance in scope of design by energy supplement part
In, and then make to keep constant by this energy supplement part to the output power of power supply that electric capacity charges, improve the use of power supply
Rate, the capacity making power supply in the case of magnetic moment is launched in satisfied design is minimum, and weight is the most minimum.
Various embodiments above only in order to technical scheme to be described, is not intended to limit；Although with reference to aforementioned each reality
Execute example the present invention has been described in detail, it will be understood by those within the art that: its still can to aforementioned respectively
Technical scheme described in embodiment is modified, or the most some or all of technical characteristic is carried out equivalent；And
These amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme, its
All should contain in the middle of the claim of the present invention and the scope of description.
Claims (10)
1. a time domain big electric current aviation electromagnetic discharger, it is characterised in that described device includes control module and big
Power main loop module；Described high-power main loop module include LC resonant full bridge inversion major loop, invariable power charging major loop,
Signal deteching circuit and drive circuit；Described LC resonant full bridge inversion major loop includes the first electric capacity and transmitting coil, institute
State the first electric capacity to be connected with described transmitting coil；
Described testing circuit is connected with described invariable power charging major loop and described control module, and described control module is with described
Drive circuit connects, and described drive circuit connects with described LC resonant full bridge inversion major loop and described invariable power charging major loop
Connecing, described invariable power charging major loop is connected with described LC resonant full bridge inversion major loop；Described testing circuit detects described perseverance
The busbar voltage of power charging major loop, and pass to described control module, described control module fill according to described invariable power
The busbar voltage of electricity major loop determines whether to generate stopping charge command, if described control module generates described stopping charging life
Order, described stopping charge command being sent to described drive circuit by the most described control module, described drive circuit control described
Invariable power charging major loop stops the first electric capacity charging to described LC resonant full bridge inversion major loop；Wherein said invariable power fills
The busbar voltage of electricity major loop is equal with the voltage at described first electric capacity two ends；After described first electric capacity charging complete, it is institute
State transmitting coil and provide electric energy, by described transmitting coil emission current；
Described testing circuit is connected with described LC resonant full bridge inversion major loop, and described testing circuit detects in described transmitting coil
Emission current, and be sent to described control module, described control module according to the busbar voltage of invariable power charging major loop with
And the electric current at ray circle two ends determines whether to generate reverse charging order, if described control module generates described reverse charging life
Order, described reverse charging order is sent to described drive circuit by the most described control module, described drive circuit control described
Transmitting coil is charged to described first electric capacity.
Device the most according to claim 1, it is characterised in that described control module includes that the first order generates submodule,
Described first order generates submodule and judges whether the busbar voltage of described invariable power charging major loop is more than or equal to preset value,
The most then generate described stopping charge command.
Device the most according to claim 1, it is characterised in that described control module includes that the second order generates submodule,
Whether the busbar voltage that described second order generation submodule judges described invariable power charging major loop is zero and described transmitting
Whether the electric current at coil two ends reaches peak value, and the most described second order generates submodule and generates described reverse charging order.
Device the most according to claim 1, it is characterised in that described control module also includes that the 3rd order generates submodule
Block, described 3rd order generates submodule and judges whether the emission current in described transmitting coil is zero, and the most described 3rd
Order generates submodule generation and starts to charge up order and pass to described drive circuit, drive circuit control described invariable power and fill
Electricity major loop starts the first electric capacity charging to described LC resonant full bridge inversion major loop.
Device the most according to claim 1, it is characterised in that described control module also includes that the 4th order generates submodule
And the 5th order generation module；After described first electric capacity charging complete, described control module is according to described first electric capacity charging
The electric polarity of the waveform of the electric current that front described transmitting coil is launched, is generated submodule or the 5th order generation module by the 4th order
Generation positive polarity sine wave order or negative polarity sine wave order, to described drive circuit, are controlled described sending out by drive circuit
Penetrate coil transmissions positive polarity sine wave or negative polarity is sinusoidal wave；The current waveform wherein launched under current driver circuit control
Electric polarity is contrary with the electric polarity of the waveform of the electric current that described transmitting coil before described first electric capacity charging is launched.
Device the most according to claim 1, it is characterised in that described LC resonant full bridge inversion major loop also includes first
IGBT, the 2nd IGBT, the 3rd IGBT, the 4th IGBT, the 5th IGBT, the 6th IGBT, the first diode, the second diode, the 3rd
Diode, the 4th diode, the 5th diode, the 6th diode and resistance；
The positive pole of described first diode connects the emitter stage of a described IGBT, and the negative pole of described first diode connects described
The colelctor electrode of the oneth IGBT；The positive pole of described second diode connects the emitter stage of described 2nd IGBT, described second diode
Negative pole connect described 2nd IGBT colelctor electrode；The positive pole of described 3rd diode connects the emitter stage of described 3rd IGBT,
The negative pole of described 3rd diode connects the colelctor electrode of described 3rd IGBT；The positive pole of described 4th diode connects the described 4th
The emitter stage of IGBT, the negative pole of described 4th diode connects the colelctor electrode of described 4th IGBT；Described 5th diode is just
Pole connects the emitter stage of described 5th IGBT, and the negative pole of described 5th diode connects the colelctor electrode of described 5th IGBT；Described
The positive pole of the 6th diode connects the emitter stage of described 6th IGBT, and the negative pole of described 6th diode connects described 6th IGBT
Colelctor electrode；
The colelctor electrode of described 5th IGBT connects described invariable power charging major loop, and the emitter stage of described 5th IGBT connects described
One end of first electric capacity and the colelctor electrode of described 6th IGBT, the other end of described first electric capacity connects the charging of described invariable power
Major loop；The emitter stage of described 6th IGBT connects colelctor electrode and the colelctor electrode of the 3rd IGBT of a described IGBT, described
The emitter stage of the oneth IGBT connects one end and the colelctor electrode of described 2nd IGBT of described transmitting coil, described 2nd IGBT's
Emitter stage connects the other end of described first electric capacity；The other end of described transmitting coil connects one end of described resistance, described electricity
The other end of resistance connects emitter stage and the colelctor electrode of the 4th IGBT of described 3rd IGBT；The emitter stage of described 4th IGBT is even
Connect the other end of described first electric capacity.
Device the most according to claim 1, it is characterised in that described invariable power charging major loop includes that power supply, high frequency are inverse
Power transformation road, high frequency transformer and high-frequency rectification circuit；Described high frequency transformer include positive limit winding and several secondary around
Group；
Described power supply is connected with described high-frequency inverter circuit, and the DC source of described power supply is converted to by described high-frequency inverter circuit
High-frequency alternating current；
Described positive limit winding is connected with described high-frequency inverter circuit, and described high-frequency rectification circuit is connected with described vice-side winding, institute
Stating high frequency transformer and described high-frequency alternating current is boosted to scheduled voltage, described high-frequency rectification circuit is by several vice-side winding
Output carry out rectification after be cascaded.
Device the most according to claim 7, it is characterised in that described high-frequency inverter circuit include the 7th IGBT, the 8th
IGBT, the 9th IGBT, the tenth IGBT, the 7th diode, the 8th diode, the 9th diode, the tenth diode, the second electric capacity,
3rd electric capacity, the 4th electric capacity, the 5th electric capacity and the 6th electric capacity；
The colelctor electrode of described 7th IGBT and the negative pole of described 7th diode, one end of the 3rd electric capacity, described 8th IGBT
One end of colelctor electrode, the negative pole of the 8th diode and the 4th electric capacity connects；
The emitter stage of described 7th IGBT and the colelctor electrode of described 9th IGBT, the positive pole of the 7th diode, the 3rd electric capacity another
One end of one end, the negative pole of the 9th diode, one end of the 5th electric capacity and described positive limit winding connects；Described positive limit winding
The other end is connected with one end of described second electric capacity；
The emitter stage of described 8th IGBT and the colelctor electrode of described tenth IGBT, the positive pole of described 8th diode, the described 4th
The other end of electric capacity, described tenth diode negative pole, one end of the 6th electric capacity and described second electric capacity the other end connect；
The emitter stage of described 9th IGBT and the positive pole of described 9th diode, the other end of the 5th electric capacity, the sending out of the tenth IGBT
The other end of emitter-base bandgap grading, the positive pole of the tenth diode and the 6th electric capacity connects.
Device the most according to claim 8, it is characterised in that described high-frequency rectification circuit include several rectification units with
And an inductance, each described rectification unit is connected in series；
Each described rectification unit the most all includes four diodes, and wherein each two Diode series forms two branch roads, and
Said two branch circuit parallel connection connects formation rectification unit, and each described vice-side winding is connected with a described rectification unit respectively,
And the two ends of described vice-side winding are connected to two Diode series of two branch roads of the rectification unit of correspondence and connect
Position；
One end of described inductance connects the negative pole of the diode of a described rectification unit, and the other end of described inductance connects described
One end of first electric capacity.
Device the most according to claim 9, it is characterised in that described control module includes that invariable power charging controls submodule
Block；The detection of described testing circuit also detects the electric current of described invariable power charging major loop；
The charging of described invariable power controls the bus of the invariable power charging major loop that submodule obtains according to the detection of described testing circuit
Voltage and current is calculated the output of described invariable power charging major loop, and according to described invariable power charging major loop
The difference of output and predetermined power generates the control signal of corresponding pulses width, and it is described to utilize described control signal to control
7th IGBT, the 8th IGBT, the 9th IGBT and the conducting of the tenth IGBT and shutoff, it is achieved described invariable power charging major loop
Constant power output.
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