CN103633829A - Electromagnetic interference signal eliminating module, system thereof and method thereof - Google Patents
Electromagnetic interference signal eliminating module, system thereof and method thereof Download PDFInfo
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- CN103633829A CN103633829A CN201210305671.XA CN201210305671A CN103633829A CN 103633829 A CN103633829 A CN 103633829A CN 201210305671 A CN201210305671 A CN 201210305671A CN 103633829 A CN103633829 A CN 103633829A
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Abstract
The invention discloses an electromagnetic interference signal eliminating module, a system thereof and a method thereof. The electromagnetic interference signal eliminating module comprises an electromagnetic interference signal receiving unit and a signal processing unit. The electromagnetic interference signal receiving unit is used for receiving at least one electromagnetic interference signal of a specific band, which is produced in an electronic device, in a near field manner, and converts the electromagnetic interference signal into an alternating current voltage signal. The signal processing unit is used for receiving the alternating current voltage signal, converting the alternating current voltage signal into direct current voltage and carrying out output. The harmful electromagnetic interference signal can be effectively absorbed and eliminated, and the electromagnetic interference signal is further converted into useful electric power.
Description
Technical field
The present invention relates to a kind of electromagnetic interference signal cancellation module, and particularly relate to and a kind of electromagnetic interference signal absorb being eliminated, and be further converted to electromagnetic interference signal cancellation module and the System and method for thereof that electric energy is exported utilization.
Background technology
Along with extensive application electric, electronic equipment, electromagnetic wave is ubiquitous, always has, and they are all potential interference sources for electronic equipment.
Electromagnetic interference (Electromagnetic Interference, EMI) be the electromagnet phenomenon that people find for a long time, and existing so-called electromagnetic interference refers to and be anyly accompanied by the effect of voltage, electric current and generation can reduce the performance of certain device, equipment or system at electromagnetic field, maybe may produce dysgenic electromagnet phenomenon to biology or material.Therefore, the electromagnetic wave producing when some electrical equipment, electronic device works, easily, electronic equipment electric to around other forms electromagnetic interference, initiating failure or affect the transmission of signal.In addition, excessive electromagnetic interference can form electromagnetic pollution, and harm people's is healthy, destroys the ecological balance.
Electronic installation under prior art, is all to use the mode (as material shielding) of eliminating for the interference source that causes electromagnetic interference, and meaning is about to cause the interference source of electromagnetic interference to constrain, and does not allow it leak and disturb other element.Yet, along with electronic component functional promotion and the long-pending body of processing procedure height, if energy is too large and interference spectrum increases rapidly, will make existing cancellation more and more difficult.Therefore electromagnetic interference phenomenon not only may become a great problem of following design, be easy to especially cause the waste of the energy.
Summary of the invention
The object of the invention is to propose a kind of electromagnetic interference signal cancellation module and System and method for thereof, the electromagnetic interference signal that described electromagnetic interference signal cancellation module and System and method for thereof can produce electronic installation inside gives effectively closely (near field) and receives elimination, and after being further converted to electric energy, output is used.
The embodiment of the present invention is provided for a kind of electromagnetic interference signal cancellation module of electronic installation.Described electromagnetic interference signal cancellation module comprises electromagnetic interference signal receiving element and signal processing unit.The electromagnetic interference signal of at least one special frequency band that electromagnetic interference signal receiving element produces in order to reception electronic installation inside, near field, and electromagnetic interference signal is converted to ac voltage signal.Signal processing unit is electrically connected to electromagnetic interference signal receiving element, and described signal processing unit is in order to receive ac voltage signal, and exports after ac voltage signal is converted to direct voltage.
The embodiment of the present invention separately provides a kind of electromagnetic interference signal to eliminate system.Described electromagnetic interference signal elimination system comprises electronic installation and above-mentioned electromagnetic interference signal cancellation module.
The embodiment of the present invention also provides a kind of electromagnetic interference signal removing method, and described electromagnetic interference signal removing method is for electronic installation.The electromagnetic interference signal of at least one special frequency band that first, short distance reception electronic installation inside produces.Then, electromagnetic interference signal is converted to ac voltage signal.Afterwards, ac voltage signal being converted to output after direct voltage uses.
In sum, electromagnetic interference signal cancellation module and System and method for thereof that the embodiment of the present invention proposes, the electromagnetic interference signal that electronic installation inside can be produced gives short distance reception effectively, not only can effectively reduce the harmful effect of electromagnetic interference signal to element in electronic installation, more can effectively electromagnetic interference signal be converted to useful electric energy and use for electronic installation.
For enabling further to understand feature of the present invention and technology contents, refer to following about detailed description of the present invention and accompanying drawing, but these explanations with appended graphic be only for the present invention is described, but not claim scope of the present invention is done to any restriction.
Accompanying drawing explanation
Figure 1A is according to the calcspar of the electromagnetic interference signal cancellation module for electronic installation of the embodiment of the present invention.
Figure 1B is according to the calcspar of the electromagnetic interference signal cancellation module for electronic installation of the embodiment of the present invention.
Fig. 2 is for applying according to another embodiment of the present invention the concrete schematic diagram of electromagnetic interference signal cancellation module.
Fig. 3 A and 3B are according to the schematic diagram of the enforcement electromagnetic interference signal receiving element of the embodiment of the present invention and the curve chart of its frequency-reflection coefficient.
Fig. 4 is according to the schematic diagram of the enforcement multi-frequency radio electric wave receiving element of the embodiment of the present invention.
Fig. 5 A and 5B are for implementing according to an embodiment of the invention the schematic diagram of broadband electromagnetical interference signal receiving element and the curve of its frequency-voltage standing wave ratio.
Fig. 6 is according to the schematic diagram of the enforcement wideband radio wave reception unit of the embodiment of the present invention.
Fig. 7 is according to the flow chart of the electromagnetic interference signal removing method of the embodiment of the present invention.
Wherein, description of reference numerals is as follows:
100,100 ': electromagnetic interference signal cancellation module;
110: electromagnetic interference signal receiving element;
120: signal processing unit;
122: rectification circuit;
124: voltage stabilizing circuit;
130: energy storage unit;
140: detecting unit;
150: load;
200: electromagnetic interference signal cancellation module;
210: load;
220: near field electromagnetic interference signal interference source;
300: co-plane waveguide antenna;
310: ground plane;
320: feed-in unit;
330: the first radiation arms;
340: the second radiation arms;
350: connecting portion;
410: circuit board;
A: load point;
AS: ac voltage signal;
CS1: control signal;
DS: ac voltage signal;
DC: direct voltage;
EWS: electromagnetic interference signal;
SW1: switch;
V1: voltage;
S700～S706: steps flow chart.
Embodiment
Below describing more fully various exemplary embodiments referring to alterations, in alterations, show some exemplary embodiments.Yet concept of the present invention may be with many multi-form embodiments, and should not be construed as and be limited to the exemplary embodiments set forth herein.Definite, provide these exemplary embodiments to make the present invention will be for detailed and complete, and will to those skilled in the art, fully pass on the category of concept of the present invention.All graphic in, can be for clear and lavish praise on oneself size and the relative size in Ceng Ji district.Similar numeral is indicated like all the time.
Although should be understood that herein and may describe various elements by term first, second, third, etc., these elements are not limited by these terms should.These terms are to distinguish an element and another element.Therefore the first element of, below discussing can be described as the second element and does not depart from the teaching of concept of the present invention.As used herein, term " and/or " comprise any one and one or many person's all combinations in project of listing that are associated.
(embodiment of electromagnetic interference signal cancellation module)
Please refer to Figure 1A, Figure 1A is according to the calcspar of the electromagnetic interference signal cancellation module for electronic installation of the invention process profit.As shown in Figure 1A, electromagnetic interference signal elimination system comprises electromagnetic interference signal cancellation module 100 ' and electronic installation.Electromagnetic interference signal cancellation module 100 ' comprises electromagnetic interference signal receiving element 110 and signal processing unit 120.Signal processing unit 120 is electrically connected electromagnetic interference signal receiving element 110.
The electromagnetic interference signal receiving element 110 of the present embodiment receives in order near field the electromagnetic interference signal EWS that electronic installation inside produces, and after being converted to ac voltage signal AS, electromagnetic interference signal EWS exports signal processing unit 120 to, and in another embodiment, electromagnetic interference signal receiving element 110 can receive the electromagnetic interference signal EWS that external electronic device produces in order near field, with the present embodiment, is not limited.Electromagnetic interference signal receiving element 110 can be antenna (for example single-band antenna, multifrequency antenna or wide frequency antenna) or induction coil, and it can be used for receiving or inductive electromagnetic interference signal EWS.In the present embodiment, electromagnetic interference signal receiving element 110 is the antenna of at least one special frequency band of reception, but with the present embodiment, is not limited.Signal processing unit 120 is in order to receive ac voltage signal AS, and directly exports a load 150 to ac voltage signal AS is converted to direct voltage DC in the present embodiment after, for load 150 normal operations or maintain standby, but with the present embodiment, is not limited.
It is worth mentioning that, the electromagnetic interference signal cancellation module 100 ' of the present embodiment, mainly to receive (or absorption) in order to the electromagnetic interference signal EWS of electrical equipment, electronic equipment or electronic installation inside is given near field, to eliminate the harmful effect of electromagnetic interference signal EWS, and by the receive direct supply load consumed energy of energy of (or absorption).Next, will coordinate graphic next further this disclosure of teaching for another embodiment.
Please refer to Figure 1B, Figure 1B is according to the calcspar of the electromagnetic interference signal cancellation module for electronic installation of the embodiment of the present invention.In the present embodiment, electromagnetic interference signal elimination system comprises electromagnetic interference signal cancellation module 100 and electronic installation.Electromagnetic interference signal cancellation module 100 comprises electromagnetic interference signal receiving element 110, signal processing unit 120 and energy storage unit 130.Signal processing unit 120 is electrically connected to electromagnetic interference signal receiving element 110.Energy storage unit 130 is electrically connected to signal processing unit 120.It is worth mentioning that, because the electromagnetic interference phenomenon in electronic installation (and particularly high power electronic device) is generally serious, so the electromagnetic interference signal cancellation module 100 of the present embodiment is applicable to high power electronic device, but with the present embodiment, is not limited.
The electromagnetic interference signal receiving element 110 of the present embodiment receives in order near field the electromagnetic interference signal EWS that electronic installation inside produces, and after being converted to ac voltage signal AS, electromagnetic interference signal EWS exports signal processing unit 120 to, and in another embodiment, electromagnetic interference signal receiving element 110 can receive the electromagnetic interference signal EWS that external electronic device produces in order near field, with the present embodiment, is not limited.Electromagnetic interference signal receiving element 110 can be antenna (for example single-band antenna, multifrequency antenna or wide frequency antenna) or induction coil, and it can be used for receiving or inductive electromagnetic interference signal EWS.In the present embodiment, electromagnetic interference signal receiving element 110 is the antenna of at least one special frequency band of reception, but with the present embodiment, is not limited.Subsidiary one carries, and near field receives and is defined as " very near the interference source that produces electromagnetic interference signal EWS, and electromagnetic interference signal EWS being received ".
Before being described below, should be noted that the electromagnetic interference signal cancellation module 100 of the present embodiment, mainly to receive (or absorption) in order to the electromagnetic interference signal EWS of electrical equipment, electronic equipment or electronic installation inside is given near field, to eliminate the harmful effect of electromagnetic interference signal EWS, and, in one embodiment, this disclosure more can be converted to electromagnetic interference signal EWS electric energy further to store or to use.
Below will further illustrate, be the relevant start about electromagnetic interference signal cancellation module 100, continue referring to Figure 1B.
The electromagnetic wave producing during due to some electrical equipment, electronic device works (meaning electromagnetic interference signal EWS), easily forms electromagnetic interference to other electrical equipment around, electronic equipment, initiating failure or affect the transmission of signal.Therefore the electromagnetic interference signal receiving element 110 (as antenna or induction coil) that, the present embodiment discloses can reception or the electromagnetic interference signal EWS of induction apparatus, electronic equipment or electronic installation inside.Furthermore, electromagnetic interference signal receiving element 110 can, according to designer's circuit design demand or actual performance requirements, be designed to be able to the special frequency band of reception or inductive electromagnetic interference signal EWS.
Then, electromagnetic interference signal receiving element 110 can convert the electromagnetic interference signal EWS that receives or sense to ac voltage signal AS, and is sent to signal processing unit 120.Those skilled in the art should understand, the electromagnetic interference signal receiving element 110 of the present embodiment is being played the part of the role of a form of energy conversion, and meaning is that electromagnetic interference signal receiving element 110 is converted to the electromagnetic energy in electromagnetic interference signal EWS the electric energy of ac voltage signal AS.Afterwards, signal processing unit 120 can carry out signal processing by its received ac voltage signal AS, is also about to ac voltage signal AS and converts direct voltage DC to, and then export direct voltage DC to energy storage unit 130.
In the present embodiment, electromagnetic interference signal cancellation module 100 more comprises detecting unit 140 and interrupteur SW 1, and wherein interrupteur SW 1 is electrically connected between signal processing unit 120 and energy storage unit 130.The electromagnetic interference signal cancellation module 100 of the present embodiment utilizes detecting unit 140 to detect the variation (that is detecting voltage V1) of the charging voltage of energy storage unit 130, and according to the result of charging voltage and the comparison of voltage predetermined value, come transfer control signal CS1 to interrupteur SW 1, with conducting or the off-state of determine switch SW1.
Specifically, when the voltage V1 of energy storage unit 130 in charging process reaches voltage predetermined value Maximum, detecting unit 140 immediately can transfer control signal CS1 to interrupteur SW 1 with cut-off switch SW1, can avoid accordingly energy storage unit 130 to produce the problem that overcharges and damage.Certainly, when the voltage V1 that energy storage unit detected when detecting unit 140 drops under voltage predetermined value Minimum, detecting unit 140 just can transfer control signal CS1 to interrupteur SW 1 with actuating switch SW1, to start again to charge, this voltage predetermined value Maximum >=voltage predetermined value Minimum wherein.
Therefore, the electromagnetic interference signal cancellation module 100 of the present embodiment can effectively give harmful electromagnetic interference signal EWS of electrical equipment, electronic equipment or electronic installation inside near field and receive elimination, and further convert electric energy to, not only can effectively reduce the harmful effect of electromagnetic interference signal EWS to element in electrical equipment, electronic equipment or electronic installation, more can effectively electromagnetic interference signal EWS be converted to useful electric energy for load or the external loading use of electronic installation.
Additional disclosure, electronic installation can be for example computer installation, mobile communication equipment or domestic electric appliance, and the load of electronic installation may be display floater, motherboard and light emitting source etc.External loading can be for example loud speaker, mobile phone or portable player.In general, the type of electronic installation, its load and external loading is not in order to limit the present invention.
In ensuing a plurality of embodiment, description is different to the part of above-mentioned Figure 1A and Figure 1B embodiment, and all the other clippeds are identical with the part of above-mentioned Figure 1A and Figure 1B embodiment.In addition,, for the purpose of facility is described, similar reference number or label are indicated similar element.
(another embodiment of electromagnetic interference signal cancellation module)
Please refer to Fig. 2, Fig. 2 is according to another embodiment of the present invention for the concrete schematic diagram of the electromagnetic interference signal cancellation module of electronic installation.Electromagnetic interference signal elimination system comprises electromagnetic interference signal cancellation module 200, electronic installation (its inner near field electromagnetic interference signal source 220 that forms) and load 210 (can be load or the external loading of electronic installation).
Compared to the difference of above-mentioned Figure 1B embodiment be in, the signal processing unit 120 of the electromagnetic interference signal cancellation module 200 of the present embodiment comprises rectification circuit 122 and voltage stabilizing circuit 124.Rectification circuit 122 is electrically connected to electromagnetic interference signal receiving element 110.Voltage stabilizing circuit 124 is electrically connected between rectification circuit 122 and energy storage unit 130.
In the present embodiment, rectification circuit 122 is in order to receive ac voltage signal AS, and exports voltage stabilizing circuit 124 to after ac voltage signal AS is converted to d. c. voltage signal DS.Voltage stabilizing circuit 124 presses DC to the charging circuit of energy storage unit 130 inside, to charge in order to d. c. voltage signal DS is carried out to export galvanic current in fact after voltage stabilizing.
It should be noted that, the electromagnetic interference signal cancellation module 200 of the present embodiment, mainly receive (or absorption) and convert electric energy in order to the electromagnetic interference signal EWS of electrical equipment, electronic equipment or electronic installation inside is given near field, therefore the effect of primarily reaching is that near field receives (or absorption) electromagnetic interference signal EWS, to reduce the impact of electromagnetic interference signal EWS on element in electrical equipment, electronic equipment or electronic installation.As for, convert electromagnetic interference signal EWS to electric energy, be the design consideration based on reclaiming the energy recycling of electromagnetic interference signal EWS.Therefore required electric energy when load 210 (low power load or high power load) work or standby are provided, though the electric energy number that can provide or noly can be enough to drive load 210, required a part of electric energy in the time of at least can contributing its work.
Next will further illustrate, be the concrete action about electromagnetic interference signal cancellation module 200.
As shown in Figure 2, when electrical equipment, electronic equipment or electronic installation are when working, can produce electromagnetic interference signal EWS (that is electromagnetic wave), easily, electronic equipment electric to around other forms electromagnetic interference phenomenon or easily to electrical equipment own, electronic equipment or electronic installation are inner, forms electromagnetic interference phenomenon, and then initiating failure or affect the transmission of signal.Therefore the electromagnetic interference signal EWS that, electromagnetic interference signal cancellation module 200 can be launched near field electromagnetic interference signal interference source 220 absorbed or receive its a part or even whole.
Furthermore, near field electromagnetic interference signal interference source 220 (for the set that produces each element of electromagnetic interference signal in electronic installation inside) can send certain special frequency band or have the electromagnetic interference signal EWS of specific frequency range, therefore the electromagnetic interference signal EWS that, electromagnetic interference signal receiving element 110 must have special frequency band or specific frequency range for it is designed.That is to say, electromagnetic interference signal receiving element 110 is designed to be able to receive or absorption near field electromagnetic interference signal interference source 220 special frequency band of electromagnetic interference signal EWS that sends or the antennas of specific frequency range.Described antenna can be single-band antenna, multifrequency antenna or wide frequency antenna.In one embodiment of the invention, under the considering of design and fabrication cost, can by Antenna Design, be further printing type aerial, and this printing type aerial is disposed on casing, printed circuit board (PCB) or the paper of electrical equipment, electronic equipment or electronic installation, but with this enforcement, not be limited to limit.
When near field electromagnetic interference signal interference source 220 is launched electromagnetic interference signal EWS, electromagnetic interference signal receiving element 110 just can receive or absorb electromagnetic interference signal EWS immediately, to avoid affecting the transmission of other signal.Then after being converted to ac voltage signal AS, the electromagnetic interference signal EWS that, electromagnetic interference signal receiving element 110 can receive it is sent to rectification circuit 122.Afterwards, rectification circuit 122 is sent to voltage stabilizing circuit 124 after its received ac voltage signal AS can being converted to d. c. voltage signal DS.Then after, voltage stabilizing circuit 124 can carry out voltage stabilizing by its received d. c. voltage signal DS, output dc voltage DC is to energy storage unit 130.Energy storage unit 130, after receiving direct voltage DC, just can start to charge with storage of electrical energy, and then can provide electric energy to load 210.
In general, utilize electromagnetic interference signal receiving element 110 by receiving or absorbing harmful electromagnetic interference signal EWS not departing from, and be further converted to useful electric energy and eliminate under the spirit of electromagnetic interference signal EWS, all belong in the scope that technological thought of the present invention will disclose.
Next will illustrate, be about providing several modes of multifrequency antenna and wide frequency antenna to realize electromagnetic interference signal receiving element.
(embodiment of electromagnetic interference signal receiving element)
Please refer to Fig. 3 A and Fig. 3 B, Fig. 3 A and 3B are according to the schematic diagram of the enforcement electromagnetic interference signal receiving element of the embodiment of the present invention and the curve chart of its frequency-reflection coefficient.As mentioned above, electromagnetic interference signal receiving element can be multifrequency antenna, in order to receive the electromagnetic interference signal of a plurality of frequency bands.As shown in Figure 3A, co-plane waveguide antenna 300 comprises ground plane 310, feed-in unit 320, the first radiation arm 330, the second radiation arm 340 and connecting portion 350.Feed-in unit 320 is connected between the second radiation arm 340 and ground plane 310, and connecting portion 350 is in order to connect the first radiation arm 330 and the second radiation arm 340, and wherein electromagnetic interference signal EWS enters from signal feed-in point A.The multifrequency antenna of the present embodiment is with co-plane waveguide (coplanar waveguide, CPW) antenna of pattern is made, can be in order to receive the electromagnetic interference signal EWS of a plurality of frequency bands, and the result from the known Fig. 3 A of Fig. 3 B simulated experiment,-below 10dB, can both receive efficiently the electromagnetic interference signal EWS of a plurality of frequency bands, wherein the trunnion axis of Fig. 3 B is frequency, and vertical axis is reflection coefficient, and with the present embodiment, is not limited.
In addition, multifrequency antenna also can be realized with other pattern, please refer to Fig. 4, and Fig. 4 is according to the schematic diagram of the enforcement multifrequency electromagnetic interference signal receiving element of the embodiment of the present invention.Those skilled in the art should understand, the multifrequency antenna of Fig. 4 is for being directly made on circuit board 410, have than the co-plane waveguide antenna advantage of small size more, therefore, the multifrequency antenna framework of electromagnetic interference signal receiving element in this disclosure shown in also can enough Fig. 4 reaches the effect that receives or absorb the electromagnetic interference signal EWS of a plurality of frequency bands, but with the present embodiment, is not limited.
Please refer to Fig. 5 A and Fig. 5 B, Fig. 5 A and 5B are for implementing according to an embodiment of the invention the schematic diagram of broadband electromagnetical interference signal receiving element and the curve of its frequency-voltage standing wave ratio.As mentioned above, electromagnetic interference signal receiving element can also be wide frequency antenna.Those skilled in the art should understand, wide frequency antenna shown in Fig. 5 A is dual polarized antenna (Dual-polarized antenna), and the result of its simulated experiment as shown in Figure 5 B, can effectively receive the electromagnetic interference signal of 800MHz～2.2GHz frequency band, wherein the trunnion axis of Fig. 5 B is frequency, vertical axis is voltage standing wave ratio (VSWR), and with the present embodiment, is not limited.
In addition, wide frequency antenna also can be realized with other pattern, please refer to Fig. 6, and Fig. 6 is for implementing according to an embodiment of the invention the schematic diagram of broadband electromagnetical interference signal receiving element.Those skilled in the art should understand, and the wide frequency antenna of Fig. 5 is dipole antenna (Dipole antenna), also can be in order to realize the electromagnetic interference signal receiving element of this disclosure, but with the present embodiment, be not limited.
Although, this disclosure provides several multifrequency antennas and wide frequency antenna to realize electromagnetic interference signal receiving element, but, in electronic installation, utilizing multifrequency antenna or wide frequency antenna to receive or absorb under the spirit of at least a portion of the electromagnetic interference signal producing from electronic installation not departing from, is all within the scope of announcement of the present invention.
(embodiment of electromagnetic interference signal receiving element)
Please refer to Fig. 7, Fig. 7 is according to the flow chart of the electromagnetic interference signal removing method of the embodiment of the present invention.Described electromagnetic interference signal removing method is the electromagnetic interference signal cancellation module being executed in for electronic installation.At step S700, the electromagnetic interference signal of at least one special frequency band that electromagnetic interference signal cancellation module short distance reception electronic installation inside produces.Then,, at step S702, electromagnetic interference signal cancellation module is converted to ac voltage signal by electromagnetic interference signal.Afterwards, at step S704, electromagnetic interference signal cancellation module exports load to after ac voltage signal is converted to direct voltage.
Moreover at step S706, electromagnetic interference signal cancellation module also can be stored the electric energy of direct voltage.
It is worth mentioning that, in step S704, electromagnetic interference signal cancellation module can first be converted to d. c. voltage signal by ac voltage signal, then d. c. voltage signal is carried out producing galvanic current pressure in fact after voltage stabilizing.
(the possible effect of embodiment)
In sum, the electromagnetic interference signal cancellation module that the embodiment of the present invention proposes and electromagnetic interference signal are eliminated System and method for, utilize electromagnetic interference signal receiving element to come near field to receive the electromagnetic interference signal that electrical equipment, electronic equipment or electronic installation inside produce, and electromagnetic interference signal is converted to ac voltage signal.Then, the present invention utilizes signal processing unit to receive ac voltage signal, and after ac voltage signal is converted to direct voltage, output is used.Moreover the present invention further utilizes the electric energy of energy storage unit storage direct voltage.Accordingly, the present invention can give short distance reception effectively by the inner harmful electromagnetic interference signal that produces of electrical equipment, electronic equipment or electronic installation and eliminate, not only can effectively reduce the harmful effect of electromagnetic interference signal to element in electrical equipment, electronic equipment or electronic installation, more can effectively electromagnetic interference signal be converted to useful electric energy and use for electronic installation.
At least one embodiment in a plurality of embodiment of this disclosure, the charging voltage that electromagnetic interference signal cancellation module more utilizes detecting unit to detect energy storage unit determines whether continuing charging, can avoid accordingly energy storage unit to produce the problem that overcharges and damage.
At least one embodiment in a plurality of embodiment of this disclosure, electromagnetic interference signal cancellation module can receive the electromagnetic interference signal that (or absorb) electrical equipment, electronic equipment or external electronic device produce, to avoid initiating failure or to affect the transmission of signal.
At least one embodiment in a plurality of embodiment of this disclosure, under the considering of cost, can be further printing type aerial by Antenna Design, and this printing type aerial is disposed on casing, printed circuit board (PCB) or the paper of electrical equipment, electronic equipment or electronic installation.
The foregoing is only embodiments of the invention, it is not in order to limit to Patent right requirement scope of the present invention.
Claims (10)
1. an electromagnetic interference signal cancellation module, is applicable to an electronic installation, it is characterized in that, this electromagnetic interference signal cancellation module comprises:
Electromagnetic interference signal receiving element, receives the electromagnetic interference signal of at least one special frequency band that this electronic installation inside produces, and this electromagnetic interference signal is converted to ac voltage signal in order near field; And
Signal processing unit, is electrically connected to this electromagnetic interference signal receiving element, and this signal processing unit is in order to receive this ac voltage signal, and exports load to after this ac voltage signal is converted to direct voltage.
2. electromagnetic interference signal cancellation module as claimed in claim 1, is characterized in that, this electromagnetic interference signal cancellation module more comprises:
Energy storage unit, is electrically connected to this signal processing unit, and this energy storage unit charges and storage of electrical energy in order to receive this direct voltage of this signal processing unit output.
3. electromagnetic interference signal cancellation module as claimed in claim 2, is characterized in that, this electromagnetic interference signal cancellation module more comprises:
The first switch, is electrically connected between this signal processing unit and this energy storage unit; And
Detecting unit, in order to detect the charging voltage of this energy storage unit, and according to the result of this charging voltage and the comparison of voltage predetermined value, transmits first and controls signal to this first switch, to determine conducting or the off-state of this first switch.
4. electromagnetic interference signal cancellation module as claimed in claim 1, is characterized in that, this signal processing unit comprises:
Rectification circuit, is electrically connected to this electromagnetic interference signal receiving element, and this rectification circuit is in order to be converted to d. c. voltage signal by this ac voltage signal; And
Voltage stabilizing circuit, is electrically connected between this rectification circuit and this load, and this voltage stabilizing circuit is in order to carry out exporting this stable in fact direct voltage after voltage stabilizing to d. c. voltage signal.
5. electromagnetic interference signal cancellation module as claimed in claim 2, is characterized in that, this signal processing unit comprises:
Rectification circuit, is electrically connected to this electromagnetic interference signal receiving element, and this rectification circuit is in order to be converted to d. c. voltage signal by this ac voltage signal; And
Voltage stabilizing circuit, is electrically connected between this rectification circuit and this energy storage unit, and this voltage stabilizing circuit is in order to carry out exporting this stable in fact direct voltage after voltage stabilizing to d. c. voltage signal.
6. electromagnetic interference signal cancellation module as claimed in claim 3, is characterized in that, this signal processing unit comprises:
Rectification circuit, is electrically connected to this electromagnetic interference signal receiving element, and this rectification circuit is in order to be converted to d. c. voltage signal by this ac voltage signal; And
Voltage stabilizing circuit, is electrically connected between this rectification circuit and this first switch, and this voltage stabilizing circuit is in order to carry out exporting this stable in fact direct voltage after voltage stabilizing to d. c. voltage signal.
7. electromagnetic interference signal is eliminated a system, it is characterized in that, this electromagnetic interference signal elimination system comprises:
Electronic installation; And
As one of them this electromagnetic interference signal cancellation module of claim 1 to 6.
8. an electromagnetic interference signal removing method, for being executed in the electromagnetic interference signal cancellation module for electronic installation, is characterized in that, this electromagnetic interference signal removing method comprises:
Receive the electromagnetic interference signal of at least one special frequency band that this electronic installation inside produces;
This electromagnetic interference signal is converted to ac voltage signal; And
After being converted to direct voltage, this ac voltage signal exports load to.
9. electromagnetic interference signal removing method as claimed in claim 8, is characterized in that, the step that this ac voltage signal is converted to after this direct voltage comprises:
Use this direct voltage to charge to energy storage unit, with storage of electrical energy.
10. electromagnetic interference signal removing method as claimed in claim 8 or 9, is characterized in that, the step that this ac voltage signal is converted to this direct voltage comprises:
This ac voltage signal is converted to d. c. voltage signal; And
This d. c. voltage signal is carried out producing this stable in fact direct voltage after voltage stabilizing.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834841A (en) * | 2017-11-06 | 2018-03-23 | 南京帕维克新能源科技有限公司 | A kind of electromagnetism interference element applied to high power DC charging module |
| CN107846231A (en) * | 2017-11-24 | 2018-03-27 | 邱诗俊 | A kind of NB IOT network-termination device |
| CN109756004A (en) * | 2019-03-22 | 2019-05-14 | 苏州浪潮智能科技有限公司 | A server and its charging device and method |
| CN115941823A (en) * | 2021-08-25 | 2023-04-07 | 荣耀终端有限公司 | An anti-jamming module and terminal equipment |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1879116A (en) * | 2003-09-08 | 2006-12-13 | 夏普株式会社 | Non-contact ic system and mobile terminal |
| CN101515728A (en) * | 2008-02-19 | 2009-08-26 | 郁晨实业有限公司 | Electromagnetic charging device and using method thereof |
| CN201742173U (en) * | 2010-06-12 | 2011-02-09 | 上海鸿隆电子技术有限公司 | Magnetic resonance type wireless power supply circuit |
| CN201928362U (en) * | 2010-12-29 | 2011-08-10 | 康佳集团股份有限公司 | Television set and real-time clock system of television set |
| TW201136086A (en) * | 2006-09-29 | 2011-10-16 | Semiconductor Energy Lab | Wireless power storage device, semiconductor device including the wireless power storage device, and method for operating the same |
| US20120044664A1 (en) * | 2010-08-17 | 2012-02-23 | Electronics And Telecommunications Research Institute | Electromagnetic interference reduction apparatus |
-
2012
- 2012-08-24 CN CN201210305671.XA patent/CN103633829A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1879116A (en) * | 2003-09-08 | 2006-12-13 | 夏普株式会社 | Non-contact ic system and mobile terminal |
| TW201136086A (en) * | 2006-09-29 | 2011-10-16 | Semiconductor Energy Lab | Wireless power storage device, semiconductor device including the wireless power storage device, and method for operating the same |
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