CN109474240A - A kind of signal source and production method based on broadband noise generating device - Google Patents
A kind of signal source and production method based on broadband noise generating device Download PDFInfo
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- CN109474240A CN109474240A CN201811650217.1A CN201811650217A CN109474240A CN 109474240 A CN109474240 A CN 109474240A CN 201811650217 A CN201811650217 A CN 201811650217A CN 109474240 A CN109474240 A CN 109474240A
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- 238000004519 manufacturing process Methods 0.000 title abstract description 4
- 230000008878 coupling Effects 0.000 claims abstract description 40
- 238000010168 coupling process Methods 0.000 claims abstract description 40
- 238000005859 coupling reaction Methods 0.000 claims abstract description 40
- 230000003321 amplification Effects 0.000 claims abstract description 34
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 34
- 238000000034 method Methods 0.000 claims abstract description 7
- 230000000087 stabilizing effect Effects 0.000 claims description 29
- 239000003990 capacitor Substances 0.000 claims description 14
- 230000009466 transformation Effects 0.000 claims description 5
- 238000004891 communication Methods 0.000 abstract description 3
- 230000005611 electricity Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B29/00—Generation of noise currents and voltages
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Abstract
The present invention relates to communication technique fields, and in particular to a kind of signal source and production method based on broadband noise generating device, including power supply module, the power supply module is interior can to prevent noise signal from flowing back by differential mode inductance；Signal source module, signal source module input terminal and power supply module are electrically connected, zener diode, generate noise signal；Noise amplification module, the noise that zener diode is generated amplify；Coupling module, coupling module and signal source module are electrically connected, the noise coupling which is used to generate signal source module to main line.The present invention can prevent noise signal from returning to power supply unit by differential mode inductance; it can protect power supply unit and signal source module and coupling module; it prevents from damaging; by the first potentiometer and the adjustable signal source module output noise signal magnitude of the second potentiometer, it is adapted to the requirement of different interference intensity.
Description
Technical field
The present invention relates to communication technique fields, and in particular to a kind of signal source and generation based on broadband noise generating device
Method.
Background technique
Currently, broadband noise generating device is in many communication tests and control system with the fast development of modern technologies
In obtained being widely applied very much, may be used as frequency spectrum tracking source, interference source, screen effect test device, it is also possible to carry out testing passive
The S21 parameter of product, still, electromagnetic leakage problem is also increasingly severe, and electromagnetic leakage refers to information system in equipment work
Can be radiate by ground wire, power supply line, signal wire etc., generate electromagnetic leakage, if these electromagnetic signals by receiving get off through
Prime information can be restored by crossing processing, cause information-leakage, so needing a kind of device for preventing electromagnetic information leakage on main line.
Summary of the invention
Object of the present invention is to reinforce preventing information leakage, information can protect to line-hit by enhancing and be not decrypted,
Especially a kind of signal source and production method based on broadband noise generating device.
Technical problem solved by the invention can be realized using following technical scheme:
A kind of signal source based on broadband noise generating device, including
Power supply module, the power supply module is interior can to prevent noise signal from flowing back by a pair of of differential mode inductance；
Signal source module, signal source module input terminal and power supply module are electrically connected, and the signal source module is by two pole of pressure stabilizing
Pipe and noise amplification module are constituted, which is used for for generating noise signal, noise amplification module by two pole of pressure stabilizing
The noise amplification that pipe generates；
Coupling module, coupling module and signal source module are electrically connected, and the coupling module is for generating signal source module
Noise coupling to main line.
The power supply module further includes that voltage stabilizing circuit module, Switching Power Supply, the first potentiometer and the second potentiometer form, and one
The output end of the differential mode inductance is electrically connected with the input terminal positive and negative anodes of Switching Power Supply respectively, the output of the Switching Power Supply
End is electrically connected with voltage stabilizing circuit module and the second potentiometer input terminal, and the input terminal of first potentiometer is in voltage regulator circuit mould
Block control terminal is electrically connected, and the zener diode input terminal and voltage stabilizing circuit module outlet are electrically connected, two pole of pressure stabilizing
Pipe output end and noise amplification module input terminal are electrically connected, and the feeder ear of the noise amplification module and the second potentiometer export
End is electrically connected, and the noise amplification module signal output end and coupling module are electrically connected.
The power supply module further includes indicator light, and the indicator light and voltage stabilizing circuit module output end are electrically connected.
The noise amplification module at least two, the noise amplification module are the noise amplifier of MSA0886 model.
The coupling module is made of a pair of of capacitor, and a pair of capacitor input terminal and signal source module are electrically connected, and one
The differential mode inductance input terminal of the capacitor and power supply module is electrically connected.
It further include pcb board, the power supply module, signal source module and coupling module are detachably on pcb board.
Shell is detachably connected on the pcb board, the power supply module, signal source module and coupling module are respectively positioned on shell
It is interior.
A kind of signal source generating method based on broadband noise generating device, includes the following steps
The first step, starting
The connection between main line power supply and power supply module is connected, is powered for power supply module；
Second step, transformation
Power supply module converts the voltage of power supply main line；
Third step, noise occur
The power supply that second step has been converted is powered for signal source module, and signal source module generates noise；
4th step, noise jamming
The noise that third step is issued by coupling module, and arrives main line.
The beneficial effects of the present invention are:
1, it can prevent noise signal from returning to power supply unit by differential mode inductance, can protect power supply unit and signal source mould
Block and coupling module prevent from damaging.
2, by the adjustable voltage stabilizing circuit module output voltage of the first potentiometer, the noise that can be generated with zener diode
Signal amplitude.
3, the input voltage that can change noise amplification module by the second potentiometer can control noise amplification module,
The size for adjusting noise amplitude, is adapted to the requirement of different interference intensity.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is flow diagram of the invention.
Fig. 3 is cut-away view of outer cover of the invention.
In figure: 1- differential mode inductance；2- Switching Power Supply；3- voltage stabilizing circuit module；The first potentiometer of 4-；The second potentiometer of 5-；
6- indicator light；7- zener diode；8- noise amplification module；9- capacitor；10- power supply module；11- signal source module；12- coupling
Module；13-PCB plate；14- shell.
Specific embodiment
Embodiment 1:
Referring to Fig.1, a kind of signal source based on broadband noise generating device, including
Power supply module, the power supply module is interior can to prevent noise signal from flowing back by a pair of of differential mode inductance；
Signal source module, signal source module input terminal and power supply module are electrically connected, and the signal source module is by two pole of pressure stabilizing
Pipe and noise amplification module are constituted, which is used for for generating noise signal, noise amplification module by two pole of pressure stabilizing
The noise amplification that pipe generates；
Coupling module, coupling module and signal source module are electrically connected, and the coupling module is for generating signal source module
Noise coupling to main line.
In actual use: main line power supply two-stage being connect with power supply module, power supply module converts electricity to main line power supply
Pressure is transported in signal source module by the voltage that power supply module is converted, and generates noise by signal source, what signal source generated makes an uproar
Sound interferes main line power supply by coupling module, while power supply module can prevent noise jamming from returning by differential mode inductance
It flows in power supply module, preventing, which influences power supply module, operates normally.
L and N is the two poles of the earth of main line power.
Embodiment 2:
On the basis of embodiment 1, referring to Fig.1, the power supply module further include voltage stabilizing circuit module 3, Switching Power Supply 2,
First potentiometer 4 and the second potentiometer 5 composition, the output end of a pair of differential mode inductance 1 input terminal with Switching Power Supply 2 respectively
Positive and negative anodes are electrically connected, and output end and voltage stabilizing circuit module 3 and 5 input terminal of the second potentiometer of the Switching Power Supply 2 electrically connect
It connects, the input terminal of first potentiometer 4 is electrically connected in 3 control terminal of voltage stabilizing circuit module, 7 input terminal of zener diode
It is electrically connected with 3 outlet of voltage stabilizing circuit module, 7 output end of zener diode electrically connects with 8 input terminal of noise amplification module
It connects, the feeder ear and 5 output end of the second potentiometer of the noise amplification module 8 are electrically connected, 8 signal of noise amplification module
Output end and coupling module are electrically connected.
In actual use: the two poles of the earth of main line power supply being connect with the input terminal of a pair of of differential mode inductance 1 respectively, main line electricity
Source connect after, main line power supply and Switching Power Supply 2 are connected by differential mode inductance 1, Switching Power Supply 2 to main line supply voltage into
Row conversion, the output end of Switching Power Supply 2 are divided into two strands, wherein one input terminal for being transmitted to voltage stabilizing circuit module 3, another burst of biography
Transport to the input terminal of the second potentiometer 5, the voltage after voltage stabilizing circuit module 3 converts Switching Power Supply 2 carries out stable regulation, can be with
Guarantee output voltage it is constant, while by the first potentiometer 4 can the output voltage numerical value to voltage stabilizing circuit module 3 adjust
Section.
The voltage of 3 output end of voltage stabilizing circuit module enters in zener diode 7, and zener diode 7 generates noise signal, together
When by 3 output end voltage difference numerical value of voltage stabilizing circuit module, the noise signal amplitude for generating zener diode 7 is different, surely
3 output end voltage of volt circuit module rises, and the noise signal amplitude that zener diode 7 generates follows rising, otherwise reduces, then
The noise signal that zener diode 7 generates is amplified by noise amplification module 8, while by the second potentiometer 5 of control, can
It is the voltage swing that provides of noise amplification module 8 to control, noise signal is amplified so as to changing noise amplification module 8
Amplitude, the noise signal transmission that then noise amplification module 8 amplifies is to coupling module.
In the present embodiment
Model 3224W-202E used in first potentiometer 4.
Model 3224W-102E used in second potentiometer 5.
L and N is the positive and negative polarities of main line power.
The diode of model ZMM9V1 used in zener diode 7.
Voltage stabilizing circuit module 3 is the voltage stabilizing chip of LM317G model.
Switching Power Supply 2 is that 220VAC input voltage is converted to 12VDC output voltage.
Embodiment 3:
On the basis of embodiment 2, referring to Fig.1, the power supply module further includes indicator light 6, the indicator light 6 and pressure stabilizing
3 output end of circuit module is electrically connected.
In actual use: can show whether voltage stabilizing circuit module 3 works by indicator light 6.
Embodiment 4:
On the basis of embodiment 2, referring to Fig.1, the noise amplification module 8 at least two, the noise amplification module 8
For the amplifier of MSA0886 model.
In actual use: the present embodiment uses three noise amplification modules 8, by that can fit to the amplification of noise signal three-level
Main line with higher frequency section.
It is more steady to noise signal gain by using the amplifier of MSA0886 model.
Embodiment 5:
On the basis of embodiment 1, referring to Fig.1, the coupling module is made of a pair of of capacitor 9, and a pair of capacitor 9 is defeated
Enter end and signal source module is electrically connected, the differential mode inductance input terminal of a pair of capacitor 9 and power supply module is electrically connected.
In actual use: the amplified noise signal of noise amplification module 8 is transmitted in capacitor 9, then will be made an uproar by capacitor 9
Acoustical signal is transmitted in main line power supply, and signal interference is completed.
In the present embodiment
Capacitor 9 usesPatch capacitor.
Embodiment 6:
It on the basis of embodiment 1, further include pcb board 13, the power supply module, signal source module and coupling referring to Fig. 3
Module is detachably on pcb board 13.
Shell 14 is detachably connected on the pcb board 13, the power supply module, signal source module and coupling module are respectively positioned on
In shell 14,14 side wall surface of shell is provided with connecting hole.
In actual use: power supply module, signal source module and coupling module are attached by being routed on pcb board 13,
It is connected simultaneously with pcb board 13 by scolding tin by the pin connected, it can be to power supply module, signal source module and coupling by shell 14
Molding block is protected, and prevents external force from causing the damage of power supply module, signal source module and coupling module, while preventing from accidentally touching,
When in use, it can be attached with main line power supply by connecting hole.
Embodiment 7:
Reference Fig. 2,
A kind of signal source generating method based on broadband noise generating device, includes the following steps
The first step, starting
The connection between main line power supply and power supply module is connected, is powered for power supply module；
Second step, transformation
Power supply module converts the voltage of power supply main line；
Third step, noise occur
The power supply that second step has been converted is powered for signal source module, and signal source module generates noise；
4th step, noise jamming
The noise that third step is issued by coupling module, and arrives main line.
In actual use: first accessing main line power supply and power supply module 11, the electricity of main line enters power supply module 11
Interior, the electricity that then power supply module 11 enters main line carries out transformation, then by the electricity supply signal source module 12 after transformation, letter
Number source module 12 generates noise signal, and the noise signal that signal source module 12 generates enters in coupling module 13, coupling module 13
Noise signal is inputted in main line, interference is completed.
Embodiments of the present invention are described in detail above in conjunction with attached drawing, but the present invention is not limited to above-mentioned implementations
Mode within the knowledge of a person skilled in the art can also be without departing from the purpose of the present invention
Various changes can be made, all in the protection scope of the technology.The component and structure category current row that the present embodiment does not describe in detail
The well-known components and common structure or conventional means of industry, do not describe one by one here.
Claims (8)
1. a kind of signal source based on broadband noise generating device, it is characterised in that: including
Power supply module, the power supply module is interior can to prevent noise signal from flowing back by a pair of of differential mode inductance；
Signal source module, signal source module input terminal and power supply module are electrically connected, the signal source module by zener diode and
Noise amplification module is constituted, and the zener diode is for generating noise signal, and noise amplification module is for producing zener diode
Raw noise amplification；
Coupling module, coupling module and signal source module are electrically connected, and the coupling module by what signal source module generated for making an uproar
Acoustical coupling is to main line.
2. a kind of signal source based on broadband noise generating device according to claim 1, it is characterised in that: the power supply
Module further includes voltage stabilizing circuit module (3), Switching Power Supply (2), the first potentiometer (4) and the second potentiometer (5) composition, Yi Duisuo
The output end for stating differential mode inductance (1) is electrically connected with the input terminal positive and negative anodes of Switching Power Supply (2) respectively, the Switching Power Supply (2)
Output end and voltage stabilizing circuit module (3) and the second potentiometer (5) input terminal electric connection, first potentiometer (4) it is defeated
Enter end to be electrically connected in voltage stabilizing circuit module (3) control terminal, zener diode (7) input terminal and voltage stabilizing circuit module (3)
Outlet is electrically connected, and zener diode (7) output end and noise amplification module (8) input terminal are electrically connected, the noise
The feeder ear and the second potentiometer (5) output end of amplification module (8) are electrically connected, noise amplification module (8) the signal output
End is electrically connected with coupling module.
3. a kind of signal source based on broadband noise generating device according to claim 2, it is characterised in that: the power supply
Module further includes indicator light (6), and the indicator light (6) and voltage stabilizing circuit module (3) output end are electrically connected.
4. according to right want 2 described in a kind of signal source based on broadband noise generating device, it is characterised in that: the noise is put
Big module (8) at least two, the noise amplification module (8) are the noise amplifier of MSA0886 model.
5. a kind of signal source based on broadband noise generating device according to claim 1, it is characterised in that: the coupling
Module is made of a pair of of capacitor (9), and a pair of capacitor (9) input terminal and signal source module are electrically connected, a pair of capacitor
(9) it is electrically connected with the differential mode inductance input terminal of power supply module.
6. a kind of signal source based on broadband noise generating device according to claim 1, it is characterised in that: further include
Pcb board (13), the power supply module, signal source module and coupling module are detachably on pcb board (13).
7. a kind of signal source based on broadband noise generating device according to claim 6, it is characterised in that: the PCB
It being detachably connected on plate (13) shell (14), the power supply module, signal source module and coupling module are respectively positioned in shell (14),
Shell (14) side wall surface is provided with connecting hole.
8. a kind of signal source generating method based on broadband noise generating device, it is characterised in that: include the following steps
The first step, starting
The connection between main line power supply and power supply module is connected, is powered for power supply module；
Second step, transformation
Power supply module converts the voltage of power supply main line；
Third step, noise occur
The power supply that second step has been converted is powered for signal source module, and signal source module generates noise；
4th step, noise jamming
The noise that third step is issued by coupling module, and arrives main line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811650217.1A CN109474240B (en) | 2018-12-31 | 2018-12-31 | Signal source based on broadband noise generating device and generating method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811650217.1A CN109474240B (en) | 2018-12-31 | 2018-12-31 | Signal source based on broadband noise generating device and generating method |
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| Publication Number | Publication Date |
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| CN109474240A true CN109474240A (en) | 2019-03-15 |
| CN109474240B CN109474240B (en) | 2024-07-30 |
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-
2018
- 2018-12-31 CN CN201811650217.1A patent/CN109474240B/en active Active
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| CN206349974U (en) * | 2017-01-18 | 2017-07-21 | 成都拓来微波技术有限公司 | A kind of minimized wide-band noise source model |
| CN108418569A (en) * | 2018-05-25 | 2018-08-17 | 敏业信息科技（上海）有限公司 | Differential mode electromagnetic noise injection network and active electromagnetic interference filter |
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