CN206226393U - There is circuit in pulse electromagnetic field - Google Patents
There is circuit in pulse electromagnetic field Download PDFInfo
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- CN206226393U CN206226393U CN201621368639.6U CN201621368639U CN206226393U CN 206226393 U CN206226393 U CN 206226393U CN 201621368639 U CN201621368639 U CN 201621368639U CN 206226393 U CN206226393 U CN 206226393U
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- pulse electromagnetic
- bridge rectifier
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Abstract
There is circuit, including charging circuit, discharge circuit and the control circuit being connected with each other the utility model discloses a kind of pulse electromagnetic field.The charging circuit includes the first transformer, controllable silicon bridge rectifier and capacitor, and first transformer, controllable silicon bridge rectifier connect and compose charge circuit respectively with the capacitor；The discharge circuit includes the capacitor, gate-controlled switch and inductor, and the capacitor, gate-controlled switch and inductor are sequentially connected with composition discharge loop；The control circuit includes the control signal Acquisition Circuit and the synchronous trigger circuit that are sequentially connected, and the synchronous trigger circuit connects the controllable silicon bridge rectifier and the gate-controlled switch respectively.There is circuit and charged to high-voltage large-capacity capacitor by controlling high-voltage ac power in above-mentioned pulse electromagnetic field, then inductor is discharged, and produce strong pulsed magnetic field, and pulse electromagnetic field incurred cost is relatively low, control method is fairly simple.
Description
Technical field
The utility model is related to pulse electromagnetic field generating means, and specifically a kind of pulse electromagnetic field occurs circuit.
Background technology
High-intensity magnetic field has very important status in the middle of the research in the fields such as metal material, biological medicine, steady due to producing
Fixed high-intensity magnetic field is highly difficult, and research emphasis are placed on impulse magnetic field aspect by current people.Impulse magnetic field is obtained, not only
Consider the electromagnetic coil structure of magnetic field generator, current control when pulse electromagnetic field occurs is also the emphasis of research.
Traditional pulse electromagnetic field method for generation is AC power first to be converted into constant dc source, then control circuit
The width of conducting and cycle, so as to control magnetic field generator to produce pulse electromagnetic field.But this method is to on-off circuit and directly
The requirement for flowing power supply is very high, and electric current in magnetic field generator coil is difficult to change, and causes pulse electromagnetic field method for generation ratio
It is more complicated.If first charged to high-voltage large-capacity electric capacity with dc source, it is necessary to two on-off circuits, will greatly increase pulse electricity
The incurred cost and technical difficulty in magnetic field.
Utility model content
Based on this, it is necessary to the more complicated and relatively costly problem of control technology occurs for pulse electromagnetic field, there is provided
There is circuit in the pulse electromagnetic field that a kind of pulse electromagnetic field incurred cost is relatively low, control method is fairly simple.
The utility model solve its technical problem use technical scheme be：
There is circuit, including charging circuit, discharge circuit and the control circuit being connected with each other in a kind of pulse electromagnetic field, described
Charging circuit includes the first transformer, controllable silicon bridge rectifier and capacitor, and first transformer, controllable silicon bridge-type are whole
Current circuit connects and composes charge circuit respectively with the capacitor；The discharge circuit include the capacitor, gate-controlled switch and
Inductor, the capacitor, gate-controlled switch and inductor are sequentially connected with composition discharge loop；The control circuit includes connecting successively
The control signal Acquisition Circuit and synchronous trigger circuit for connecing, the synchronous trigger circuit connect the controllable silicon bridge rectifier respectively
Circuit and the gate-controlled switch.
Using the utility model of above-mentioned technical proposal, compared with prior art, its advantage is：
There is circuit in above-mentioned pulse electromagnetic field, synchronous trigger circuit receives the signal of control signal Acquisition Circuit collection and produces
The corresponding control signal of life controls charging circuit and discharge circuit respectively.Synchronous trigger circuit is in controllable silicon bridge rectifier
The control end of one-way conduction controllable silicon export same control signal, above-mentioned one-way conduction controllable silicon is produced the synchronous angle of flow to control
Charging circuit processed；When above-mentioned charging circuit completes to charge, above-mentioned controllable silicon bridge rectifier cut-off, synchronous trigger circuit output
Control signal control gate-controlled switch conducting, discharge circuit is started working, and produces pulse electromagnetic field, completes a charging-discharging cycle.
There is circuit and charged to high-voltage large-capacity capacitor by controlling high-voltage ac power in above-mentioned pulse electromagnetic field, then inductor is put
Electricity, produces strong pulsed magnetic field, and pulse electromagnetic field incurred cost is relatively low, control method is fairly simple.
Further, preferred scheme of the present utility model is：
The control signal Acquisition Circuit includes the second transformer, bridge rectifier and the zero-point obtaining electricity that are sequentially connected with
Road, the zero-point obtaining single channel connects the synchronous trigger circuit.
The zero-point obtaining circuit is gate circuit.
The chip for constituting the gate circuit is 74LS08N chips.
The control circuit also includes power supply circuit, and the power supply circuit connects the bridge rectifier, zero point respectively
Extract circuit and synchronous trigger circuit.
The power supply circuit includes isolating diode, filter capacitor and mu balanced circuit；The anode of the isolating diode connects
The current output terminal of the bridge rectifier is connect, negative electrode connects the input of the mu balanced circuit, the public affairs of the mu balanced circuit
End connects the current input terminal of the bridge rectifier altogether, and the filter capacitor connects the input and public affairs of the mu balanced circuit
Hold altogether, the output end of the mu balanced circuit connects the zero-point obtaining circuit and synchronous trigger circuit respectively.
The synchronous trigger circuit is single-chip microcomputer or digital integrated electronic circuit.
The controllable silicon bridge rectifier includes the first diode, the first one-way SCR, the second list that are sequentially connected with
To controllable silicon and the second diode；The negative electrode of first one-way SCR and the second one-way SCR is respectively as described controllable
The current output terminal of silicon dridge type rectification circuit, the synchronous trigger circuit connects first one-way SCR and the second list respectively
To the control end of controllable silicon.
The gate-controlled switch is the 3rd one-way SCR, and the synchronous trigger circuit connects the 3rd one-way SCR
Control end.
The capacitor is high-voltage large-capacity capacitor.
Brief description of the drawings
Fig. 1 is the electrical block diagram of the utility model embodiment；
Fig. 2 is circuit module figure shown in Fig. 1；
Fig. 3 is the circuit diagram of control signal Acquisition Circuit and power supply circuit shown in Fig. 1；
Fig. 4 is the circuit diagram of embodiment illustrated in fig. 1 charging circuit and discharge circuit.
Specific embodiment
The utility model is described further below in conjunction with drawings and Examples.
There is circuit in a kind of pulse electromagnetic field, clearance controls high-voltage ac power to be charged to high-voltage large-capacity capacitor, then
Inductor is discharged, strong pulsed magnetic field is produced, above-mentioned pulse electromagnetic field incurred cost is relatively low, control method is fairly simple.It is above-mentioned
There is circuit by gathering positive half-wave power supply signal and producing the control signal for synchronizing to control charging circuit in pulse electromagnetic field
And discharge circuit.The control end of the one-way conduction controllable silicon of synchronous trigger circuit connection controllable silicon bridge rectifier, so as to control
The angle of flow of above-mentioned one-way conduction controllable silicon is made, the half wave cycles of beginning, the angle of flow of above-mentioned one-way SCR is smaller, so that anti-
Only charging current of condenser is excessive, and as the voltage of capacitor is raised, the angle of flow of above-mentioned one-way SCR is gradually increased, so that
Reduce the interference to charge power supply and the impact to capacitor when charging.After above-mentioned charging terminates, one-way SCR cut-off, together
When synchronous trigger circuit control gate-controlled switch conducting, capacitor discharges inductor, so as to produce pulse electromagnetic field, completes one
Charging-discharging cycle.
With reference to Fig. 1, there is circuit 100, including the charging circuit 120, discharge circuit being connected with each other in a kind of pulse electromagnetic field
140 and control circuit 160.
With reference to Fig. 2, above-mentioned charging circuit 120 includes the first transformer 122, controllable silicon bridge rectifier 124 and electric capacity
Device 126, above-mentioned first transformer 122, controllable silicon bridge rectifier 124 connect and compose charging respectively with above-mentioned capacitor 126
Loop.Above-mentioned discharge circuit 140 includes above-mentioned capacitor 126, gate-controlled switch 142 and inductor 144, above-mentioned capacitor 126, can
Control switch 142 and inductor 144 are sequentially connected with composition discharge loop.Above-mentioned control circuit 160 includes the control letter being sequentially connected
Number Acquisition Circuit 162 and synchronous trigger circuit 164, above-mentioned synchronous trigger circuit 164 connect above-mentioned controllable silicon bridge rectifier respectively
Circuit 124 and gate-controlled switch 142.
There is circuit 100 in above-mentioned pulse electromagnetic field, synchronous trigger circuit 164 receives control signal Acquisition Circuit 162 and gathers
Signal after produce the control signal for synchronizing, and to the one-way conduction controllable silicon in controllable silicon bridge rectifier 124
Control end exports above-mentioned control signal, above-mentioned one-way conduction controllable silicon is produced the synchronous angle of flow；When above-mentioned charging circuit 120
Complete to charge, controllable silicon bridge rectifier 124 ends, synchronous trigger circuit 164 to the output control signal of gate-controlled switch 142,
Gate-controlled switch 142 is turned on, and discharge circuit 140 is started working, and produces pulse electromagnetic field, completes a charging-discharging cycle.Above-mentioned arteries and veins
Electromagnetic field generation circuit 100 is rushed to be charged to high-voltage large-capacity capacitor 126 by controlling high-voltage ac power, then to inductor
144 electric discharges, produce strong pulsed magnetic field, and pulse electromagnetic field incurred cost is relatively low, control method is fairly simple.
It is the circuit diagram of embodiment illustrated in fig. 1 control signal Acquisition Circuit 162 and power supply circuit 166 shown in Fig. 3.
It is the circuit diagram of embodiment illustrated in fig. 1 charging circuit 120 and discharge circuit 140 shown in Fig. 4.
With reference to Fig. 2, above-mentioned control signal Acquisition Circuit 162 includes the second transformer 1622, bridge rectifier being sequentially connected with
Circuit 1624 and zero-point obtaining circuit 1626, above-mentioned zero-point obtaining circuit 1626 connect synchronous trigger circuit 164.With reference to Fig. 3, on
It is that 220 volt of 50 hz AC power supply is become 6 volts of friendships by AC transformer T2, above-mentioned AC transformer T2 to state the second transformer 1622
Stream electricity, the bridge rectifier 1624 being made up of commutation diode D1-D4,100 hertz of forming frequency, 10 milliseconds of cycle are just
Half wave power supply signal.
With reference to Fig. 3, above-mentioned zero-point obtaining circuit 1626 is gate circuit U1A.Specifically, above-mentioned gate circuit U1A is 74LS08N
Chip.100 hertz of frequency, the positive half-wave power supply signal in 10 milliseconds of cycle are formed in AC power zero crossing by gate circuit U1A
It is the signal of the i.e. above-mentioned collection of control signal Acquisition Circuit 162 of low level 100 hertz of pulse signals to locate.
Further, with reference to Fig. 2, above-mentioned control circuit 160 also includes power supply circuit 166, and above-mentioned power supply circuit 166 is distinguished
Above-mentioned bridge rectifier 1624, zero-point obtaining circuit 1626 and synchronous trigger circuit 164 are connected, for above-mentioned zero-point obtaining
Circuit 1626 and synchronous trigger circuit 164 are powered.
With reference to Fig. 3, above-mentioned power supply circuit 166 includes isolating diode D5, filter capacitor C1 and mu balanced circuit U2.It is above-mentioned every
The current output terminal of above-mentioned bridge rectifier 1624 is connected from the anode of diode D5, negative electrode connects above-mentioned mu balanced circuit U2's
Input, the common port of above-mentioned mu balanced circuit U2 connects the current input terminal of above-mentioned bridge rectifier 1624, above-mentioned filtered electrical
Hold input and common port that C1 connects above-mentioned mu balanced circuit U2, the output end of above-mentioned mu balanced circuit U2 connects above-mentioned zero point respectively
Extract circuit 1626 and synchronous trigger circuit 164.By isolating the isolation of two pole D5 and the filtering of filter capacitor C1, direct current is formed
Electricity, and 5 volts of dc sources of stabilization are formed by mu balanced circuit U2, to zero-point obtaining circuit 1626 and synchronous trigger circuit 164
Power supply.Specifically, above-mentioned mu balanced circuit U2 is LM7805CT chips, filter capacitor C1 sizes are 47 μ F.
It is the first diode D6 that above-mentioned controllable silicon bridge rectifier 124 includes being sequentially connected with, first unidirectional with reference to Fig. 4
Controllable silicon D8, the second one-way SCR D9 and the second diode D7；Above-mentioned first one-way SCR D8 and the second one-way SCR
The negative electrode of D9 respectively as the current output terminal of above-mentioned controllable silicon bridge rectifier 124, distinguish by above-mentioned synchronous trigger circuit 164
Connect the control end of above-mentioned first one-way SCR D8 and the second one-way SCR D9.
Synchronous trigger circuit 164 receives the signal of the above-mentioned collection of control signal Acquisition Circuit 162, i.e., in AC power zero passage
It is low level 100 hertz of pulse signals, the control signal of the adjustable angle of flow that generation is synchronized, for controlling respectively at point
Make above-mentioned charging circuit 120 and discharge circuit 140.When the control charging circuit 120 of synchronous trigger circuit 164 works, to above-mentioned the
The control end output control signal of one one-way SCR D8 and the second one-way SCR D9, for controlling the first one-way SCR D8
With the angle of flow of the second one-way SCR D9 so that the first one-way SCR D8 and second unidirectionally may be used in the half wave cycles for starting
The angle of flow of control silicon D9 is smaller, so as to prevent the charging current of capacitor 126 excessive, as the voltage of capacitor 126 is raised, and first
The angle of flow of one-way SCR D8 and the second one-way SCR D9 is gradually increased, so as to the interference of charge power supply when reducing charging
And the impact to capacitor 126.After above-mentioned charging terminates, the first one-way SCR D8 and the second one-way SCR D9 cut
Only.Meanwhile, synchronous trigger circuit 164 starts control discharge circuit 140 and works, and the output control signal of synchronous trigger circuit 164 is touched
Hair gate-controlled switch 142 is turned on, and capacitor 126 discharges inductor 144, so as to produce pulse electromagnetic field, completes a discharge and recharge
Cycle.
Specifically, above-mentioned synchronous trigger circuit 164 is single-chip microcomputer or digital integrated electronic circuit.
With reference to Fig. 4, above-mentioned gate-controlled switch 142 is the 3rd one-way SCR D10, in the connection of above-mentioned synchronous trigger circuit 164
The control end of the 3rd one-way SCR D10 is stated, when charging circuit 120 completes to charge, the output control of above-mentioned synchronous trigger circuit 164
Signal causes that the 3rd one-way SCR D10 is turned on, and discharge circuit 140 is started working.
Specifically, with reference to Fig. 4, above-mentioned capacitor 126 is high-voltage large-capacity capacitor C.First transformer T1 output voltages
Size be above-mentioned capacitor C, pressure-resistant parameter is most in commutation diode D1-D7, one-way conduction controllable silicon D8-D10 these devices
0.7 times of small numerical value.Above-mentioned commutation diode D1-D6 models 1N4007GP.Further, with reference to Fig. 4, above-mentioned inductor
L1 parallel connection protection diodes D11.
Above-described embodiment is only to the utility model explanation for example.The utility model those of skill in the art
Member can be made various modifications or supplement to described instantiation or be substituted using similar mode, but can't be inclined
From spirit of the present utility model or surmount scope defined in appended claims.
Claims (10)
1. there is circuit, including charging circuit, discharge circuit and the control circuit being connected with each other, its feature in a kind of pulse electromagnetic field
It is that the charging circuit includes the first transformer, controllable silicon bridge rectifier and capacitor, first transformer, can
Control silicon dridge type rectification circuit connects and composes charge circuit respectively with the capacitor；The discharge circuit include the capacitor,
Gate-controlled switch and inductor, the capacitor, gate-controlled switch and inductor are sequentially connected with composition discharge loop；The control circuit
Including the control signal Acquisition Circuit being sequentially connected and synchronous trigger circuit, the synchronous trigger circuit connects described controllable respectively
Silicon dridge type rectification circuit and the gate-controlled switch.
2. there is circuit in pulse electromagnetic field according to claim 1, it is characterised in that the control signal Acquisition Circuit bag
The second transformer, bridge rectifier and the zero-point obtaining circuit being sequentially connected with are included, the zero-point obtaining single channel connection is described same
Step triggers circuit.
3. there is circuit in pulse electromagnetic field according to claim 2, it is characterised in that the zero-point obtaining circuit is door electricity
Road.
4. there is circuit in pulse electromagnetic field according to claim 3, it is characterised in that the chip for constituting the gate circuit is
74LS08N chips.
5. there is circuit in pulse electromagnetic field according to claim 2, it is characterised in that the control circuit also includes power supply
Circuit, the power supply circuit connects the bridge rectifier, zero-point obtaining circuit and synchronous trigger circuit respectively.
6. there is circuit in pulse electromagnetic field according to claim 5, it is characterised in that the power supply circuit includes isolation two
Pole pipe, filter capacitor and mu balanced circuit；The anode of the isolating diode connects the current output terminal of the bridge rectifier,
Negative electrode connects the input of the mu balanced circuit, and the electric current of the common port connection bridge rectifier of the mu balanced circuit is defeated
Enter end, the filter capacitor connects the input and common port of the mu balanced circuit, and the output end of the mu balanced circuit connects respectively
Connect the zero-point obtaining circuit and synchronous trigger circuit.
7. there is circuit in pulse electromagnetic field according to claim 1, it is characterised in that the synchronous trigger circuit is monolithic
Machine or digital integrated electronic circuit.
8. there is circuit in pulse electromagnetic field according to claim 1, it is characterised in that the controllable silicon bridge rectifier
Including the first diode, the first one-way SCR, the second one-way SCR and the second diode that are sequentially connected with；Described first is single
To controllable silicon and the second one-way SCR negative electrode respectively as the controllable silicon bridge rectifier current output terminal, it is described
Synchronous trigger circuit connects the control end of first one-way SCR and the second one-way SCR respectively.
9. there is circuit in pulse electromagnetic field according to claim 1, it is characterised in that the gate-controlled switch is the 3rd unidirectional
Controllable silicon, the synchronous trigger circuit connects the control end of the 3rd one-way SCR.
10. there is circuit in pulse electromagnetic field according to claim 1, it is characterised in that the capacitor is high pressure great Rong
Amount capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621368639.6U CN206226393U (en) | 2016-12-14 | 2016-12-14 | There is circuit in pulse electromagnetic field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621368639.6U CN206226393U (en) | 2016-12-14 | 2016-12-14 | There is circuit in pulse electromagnetic field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206226393U true CN206226393U (en) | 2017-06-06 |
Family
ID=58783390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621368639.6U Active CN206226393U (en) | 2016-12-14 | 2016-12-14 | There is circuit in pulse electromagnetic field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206226393U (en) |
-
2016
- 2016-12-14 CN CN201621368639.6U patent/CN206226393U/en active Active
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