CN104378714B - Signal transmitting apparatus with micro pulse wave absorption function - Google Patents
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Abstract
The invention discloses a kind of signal transmitting apparatus with micro pulse wave absorption function, it includes：Input, span line and output end, wherein, the output end is connected with inductive load, and the input is connected with drive circuit；First micro pulsator release module, first micro pulsator release module are arranged on the output end, for being released to micropulse ripple caused by the inductive load；And second micro pulsator release module, second micro pulsator release module are arranged on the input, for carrying out secondary release by the remaining micropulse ripple of first micro pulsator release module.The signal transmitting apparatus with micro pulse wave absorption function of the present invention is capable of the micropulse ripple at absorptance nanosecond and microsecond section shorter time interval, is effectively improved the EMC performances of equipment, the mistake in reduction high frequency data transfer.
Description
Technical field
The present invention relates to signal transmission technology field, more particularly to a kind of signal transmission with micro pulse wave absorption function
Device.
Background technology
In circuit, almost all of circuit and component have the presence of inductance.Due to having inductance substantially in circuit
Presence, so as to be commutated by semiconductor switch characteristic or capacitor charge and discharge electric current etc., reason causes to produce during inductive discharge
Impulse wave, and because many-sided reasons such as conductor Kelvin effect, conductive surface defect, absorption device speed can cause impulse wave
In the very short time initially occurred（Such as psec femtosecond section）It can not be well absorbed, this is one and is widely present in electricity
Typical EMI in road（Electro Magnetic Interference, electromagnetic interference）Problem.
May be not high to this kind of frequency of occurrences based on the frequency spectrum analysis method of Fourier transformation but local there is extremely high frequency
The impulse wave of property, easily cause to ignore, traditional instrument also is difficult to capture its trace.Although people lead in electromagnetic compatibility
Domain supplements the test of Clusters, but is also only applied in interface section, and its corresponding processing method also stops substantially
In nanosecond and microsecond section, for breadth and depth, the understanding that people are endangered impulse wave is far from being enough.Largely because of wink
Between electric discharge cause to radiate and disturb the phenomenon of mistake to be also grouped into the continuous wave compared with low-frequency range, thus caused countermeasure is led to
It is often and poorly efficient and cost dearly.Particularly in the audio area extremely sensitive to such impulse wave, understanding to the problem and
Processing is even more serious blank.
The content of the invention
The purpose of the present invention is intended at least solve one of above-mentioned technological deficiency.
Therefore, the present invention needs to propose a kind of signal transmitting apparatus with micro pulse wave absorption function, being capable of absorptance
Nanosecond and the micropulse ripple at microsecond section shorter time interval, the EMC performances of equipment are effectively improved, reduced in high frequency data transfer
Mistake, particularly eliminate audio area digital voice phenomenon.
To reach above-mentioned purpose, a kind of signal transmission dress with micro pulse wave absorption function that the embodiment of the present invention proposes
Put, including：Input, span line output end, wherein, the output end is respectively connected with inductive load, and the input is with driving
Dynamic circuit is connected；First micro pulsator release module, first micro pulsator release module are arranged on the output end, are used for
Micropulse ripple caused by the inductive load is released；And second micro pulsator release module, second micropulse
Ripple module of releasing is arranged on the input, for being entered by the remaining micropulse ripple of first micro pulsator release module
Row is secondary to release.
The signal transmitting apparatus with micro pulse wave absorption function according to embodiments of the present invention, to impulse wave nanosecond with
Microsecond section is also equipped with the ability that the micropulse ripple to shorter time interval is absorbed on the basis of absorbing, and can effectively improve and sets
Standby EMC performances, reduce the mistake in high frequency data transfer, improve the radiation interference that perceptual system medium-high frequency switch is brought, and
Cost can also effectively be reduced.Especially in audio area, the digital voice phenomenon of audio area, its improvement to tonequality can be eliminated
With special meaning.
In one embodiment of the invention, the span line is micropulse ripple consumable module, the micropulse ripple consumption
Module is arranged between first micro pulsator release module and the second micro pulsator release module.
In a preferred embodiment of the invention, the inductive load is loudspeaker.Also, the output end includes the
One output end and the second output end, second output end can be connected with the magnet of the loudspeaker.
In some embodiments of the invention, first micro pulsator release module, the second micropulse ripple are released
Module and the micropulse ripple consumable module form the ∏ mode filters for filtering out micropulse ripple.
In one particular embodiment of the present invention, the micropulse ripple consumable module is the wire with default impedance.
Also, the wire is provided with screen layer.
In some embodiments of the invention, it is cased with anti-interference ring outside the wire.The anti-interference ring can be magnet ring
Or becket.
In some embodiments of the invention, the wire has multiple characteristic impedance discontinuity poinies.
Wherein, in an embodiment of the present invention, second micro pulsator release module is additionally operable to produce the wire
Micropulse ripple released.
Specifically, first micro pulsator release module and the second micro pulsator release module include：Resistance；With it is described
The high frequency capacitance of multiple pf or ff ranks of resistor coupled in parallel；And, conducting speed in parallel with the high frequency capacitance is in psec
Level or even lower voltage-stabiliser tube.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
Of the invention above-mentioned and/or additional aspect and advantage will become from the following description of the accompanying drawings of embodiments
Substantially and it is readily appreciated that, wherein：
Fig. 1 is existing one typical inductive load transmission circuit figure；
Fig. 2 is to be illustrated according to the circuit of the signal transmitting apparatus with micro pulse wave absorption function of the embodiment of the present invention
Figure；
Fig. 3 is the electricity according to the signal transmitting apparatus with micro pulse wave absorption function of a preferred embodiment of the invention
Road schematic diagram；
Fig. 4 is the circuit according to the signal transmitting apparatus with micro pulse wave absorption function of another embodiment of the present invention
Schematic diagram；And
Fig. 5 is the circuit according to the signal transmitting apparatus with micro pulse wave absorption function of another embodiment of the invention
Schematic diagram.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not construed as limiting the claims.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.For letter
Change disclosure of the invention, hereinafter the part and setting of specific examples are described.Certainly, they are only example, and
Purpose does not lie in the limitation present invention.In addition, the present invention can in different examples repeat reference numerals and/or letter.It is this heavy
It is the relation between itself not indicating discussed various embodiments and/or setting for purposes of simplicity and clarity again.This
Outside, the invention provides various specific techniques and material examples, but those of ordinary skill in the art can be appreciated that
The applicable property of other techniques and/or the use of other materials.In addition, fisrt feature described below second feature it
" on " structure can include the first and second features and be formed as the embodiment that directly contacts, other feature shape can also be included
Into the embodiment between the first and second features, such first and second feature may not be direct contact.
In the description of the invention, it is necessary to explanation, unless otherwise prescribed and limit, term " installation ", " connected ",
" connection " should be interpreted broadly, for example, it may be mechanical connection or electrical connection or the connection of two element internals, can
To be to be joined directly together, can also be indirectly connected by intermediary, for the ordinary skill in the art, can basis
Concrete condition understands the concrete meaning of above-mentioned term.
With reference to following description and accompanying drawing, it will be clear that these and other aspects of embodiments of the invention.In these descriptions
In accompanying drawing, some particular implementations in embodiments of the invention are specifically disclosed, to represent to implement the implementation of the present invention
Some modes of the principle of example, but it is to be understood that the scope of embodiments of the invention is not limited.On the contrary, the present invention
Embodiment includes all changes, modification and the equivalent fallen into the range of the spirit and intension of attached claims.
Described first before the device with micro pulse wave absorption function that the description embodiment of the present invention proposes electric
The mechanism of production of impulse wave in road.
Referred to herein as impulse wave refer to as electric current in inductance quickly change caused by, this is a universal physics
Phenomenon.For example, a typical inductive load transmission circuit is as shown in figure 1, except power supply V, controlling switch K, load electricity in Fig. 1
Feel L ' and load resistance R ', transmission cable itself also has cable inductance（l1、l2……l2n）, cable capacitance（C1、C2……
Cn）And cable skin resistance（r1、r2……r2n）.
Wherein, on the one hand, in common circuit, AC-DC changes the moment dead electricity for causing power supply；On the other hand, by
The interference of input impulse wave, or during signal zero passage, immediate current occurs in the semiconductor driving efferent duct of minority carrier
Close phenomenon.It is and huge in dead electricity immediate current rate of change dI/dt.Wherein because load perception, electric current will continue to pass along cable
It is defeated, but due to the presence of Kelvin effect, the electric current changed at a high speed can only transmit in cable surface so that cable resistance is much larger than just
Normal D.C. resistance.More seriously, cable is generally made up of copper material, and one layer of oxygen being made up of Cu2O and CuO occurs in surface
Change film, the compacted zone and fine copper interlayer of the oxide-film there may be gradual transitional region.The electromagnetic field that electronics is rapidly changed squeezes
Enter to aoxidize in the high semiconductor layer of copper content, or equivalent to extremely coarse conductive surface is entered, further increase
Cable resistance, this causes the original electric capacity charging for being used to absorb curent change almost to fail.Therefore, these high frequency signal currents are several
Terminal all is transferred to, so as to cause the output port of driver a time extremely short differential mode high-voltage pulse, and companion occur
With strong pulsed electromagnetic radiation and common mode impulse disturbances.So as to which error in data and deadlock may be caused in digital circuit,
Voicefrequency circuit forms ear-piercing distortion.
Because this inductive load can be made up of any one section lead in circuit, therefore this impulse wave will spread all over and be present in
Various pieces inside circuit.This has been generated in femtosecond and psec section, by differential mode pulse, pulsed electromagnetic radiation and common mode arteries and veins
The impulse wave for rushing composition is referred to as micropulse ripple in the present invention.Its with the impulse wave that is generally referred in electromagnetic compatibility EMC theories not
Together, average energy is little when this spreads all over the micropulse ripple overwhelming majority for being present in circuit inside various pieces, and decay is in finger
Number characteristic, amplitude positive and negative can be distributed, also can unidirectionally be distributed.And the impulse wave generally referred in electromagnetic compatibility EMC theories, typically by
Mechanical switch and large-scale inductive load cause, and nanosecond generation, in nanosecond step voltage kilovolt or so, occur in groups, have larger
Average energy, univoltage distribution, decay exponentially characteristic, enter circuit from power supply and interface section.
Because the micropulse ripple generation time is extremely short, decay is rapid, hardly can trigger common facilities for observation, or even probe wire
May all decay rapidly its transmission, while again very low with its harmonic frequency ratio, its frequency occurred, therefore grasp it is difficult to flutter
Trace, the processing to it is even more blank.Present inventor passes through years of researches, is tested well in audio area finally
Its presence is demonstrate,proved, because by long-term evolution, human auditory system possesses to trickle fast-changing abnormal sound more
The characteristics of sensitive.Loudness of a sound is proportional to the acceleration of the diaphragm of loudspeaker, and the little pulse wave energy of integral energy makes vibrating diaphragm possess part
Larger acceleration.Rare pulse wave energy smoothly forms event in human ear so in the Nature, and is remembered.Work as pulse
When the frequency and intensity that ripple occurs and the sound of its association meet certain condition, the appearance of impulse wave just have impact on the perception of people.
Primary Study shows, the distortion that micropulse wavestrip is come, and may be the main body of circuit distortion in sound system, or most important
One of part.And attempt to use transient intermodulation in the field（TIMD）, interface intermodulation distortion（IIMD）With phase intermodulation
Distortion（PIMD）The phenomenon of explanation should actually derive from this.
Therefore, inventor passes through many experiments, passes through impulse wave is absorbed in nanosecond and microsecond section in custom circuit
On the basis of add the device that the micropulse ripple to shorter time interval is absorbed, solve above-mentioned problem at one stroke, effectively change
The EMC performances of kind equipment, improve the accuracy rate of high frequency data transfer, reduce radiation interference, right especially in audio area
Improving tonequality has far-reaching significance.
The signal with micro pulse wave absorption function proposed according to embodiments of the present invention is just described with reference to below
Transmitting device.
Fig. 2 is to be illustrated according to the circuit of the signal transmitting apparatus with micro pulse wave absorption function of the embodiment of the present invention
Figure.As shown in Fig. 2 the signal transmitting apparatus should with micro pulse wave absorption function includes first input end 201, the second input
202nd, the first output end 203 and the second output end 204 and span line, the first micro pulsator release module 100 and the second scarcely perceptible pulse
Ripple is rushed to release module 200.
Wherein, the first output end 203 and the second output end 204 are respectively connected with inductive load 205, and the input is with driving
Dynamic circuit（Not shown in figure）It is connected, the first micro pulsator release module 100 is arranged on the output end, passes through wire and first
Output end 203 is connected with the second output end 204, for being released to micropulse ripple caused by inductive load 205, the second scarcely perceptible pulse
Rush ripple module 200 of releasing and be arranged on the input, be connected by wire with the input 202 of first input end 201 and second, used
In to carrying out secondary release by the remaining micropulse ripple of the second micro pulsator release module 200.
In an embodiment of the present invention, as shown in Fig. 2 the span line is micropulse ripple consumable module 300, micropulse ripple
Consumable module 300 is arranged between the first micro pulsator release module 100 and the second micro pulsator release module 200.
That is, in an embodiment of the present invention, as shown in Fig. 2 A sections and C sections are the areas that releases of micropulse ripple, A sections
It is responsible for releasing from micropulse ripple caused by inductive load 205, C sections are responsible for the micropulse ripple to come from A sections residual of releasing, simultaneously
Also processing B section line inductances form new micropulse ripple, i.e. the second micro pulsator release module 200 is additionally operable to produce B section leads
Raw micropulse ripple is released.
Specifically, the first micro pulsator release module 100 and the second micro pulsator release module 200 include resistance R1,
The high frequency capacitance of multiple pf or ff ranks（Such as C1 ', C2 ', C3 ', C4 '）With conducting speed in picosecond or even lower steady
Pressure pipe D1.Wherein, it is connected in parallel after the high frequency capacitance parallel connection of multiple pf or ff ranks with resistance R1, voltage-stabiliser tube D1 and multiple pf
The high ordinary telegram of rank holds in parallel.Also, it is TVS during voltage-stabiliser tube high current（Transient Voltage Suppresser, transient state
Voltage suppressor）, the electric capacity of multiple pf ranks is high frequency capacitance and resistance R1 is alternating-current resistance.It should be noted that surface light
The thin high frequency cable of cleanliness high oxidation layer, its line capacitance can partly replace foregoing high frequency capacitance.
Voltage-stabiliser tube is determined with the peak value of circuit maximum output voltage, and takes default surplus, according to actual conditions enters rower
It is fixed.Voltage-stabiliser tube forward and reverse pulse present in picosecond absorption circuit, and heat is converted it directly to, no
Vibration can be formed, is preferable device, in AC signal loop, the voltage-stabiliser tube need to be replaced with bi-directional voltage stabilizing pipe T1, such as Fig. 3 institutes
Show.The use of the shortcomings that voltage-stabiliser tube and similar device is that this part is main to helpless less than the residual impulse of breakdown voltage
Completed by electric capacity, and be to prevent that electric capacity from being consumed to inductance loopback energy, palpus parallel resistance, therefore will spy in practical application
Not Zhu Yi resistance, electric capacity and voltage-stabiliser tube lead-in inductance and resonant frequency, electric capacity must use high-frequency structure, preferably punching and three
EMI electric capacity is held, wherein must be made up of minimum capacity, such as 1pf, 0.1pf or following.Surface non-oxidation layer, skin resistance are small
High frequency wire its line capacitance there is preferable absorption characteristic, can partly replace the effect of above-mentioned electric capacity.
Wherein, the maximum operating frequency of electric capacity depends on its resonant frequency, such as by taking the common paster of 0805 encapsulation as an example,Pin inductance takes 0.5nH.C1 ' can take 300pf, C2 ' 1pf, C3 can be taken ' 0.1pf can be taken.
Also, frequency corresponding to 0.01uf is 70MHz, frequency corresponding to 100pf is 700MHz, and frequency corresponding to 1pf is 7GHz,
Frequency corresponding to 0.1pf is 22GHz, and frequency corresponding to 0.01pf is 70GHz, and the working frequency of the three terminal capacitor of equivalent capability
Typically want high 2-3 times.
In one embodiment of the invention, as shown in Fig. 2 B sections are the main span lines of signal, and the resistance of micropulse ripple
Power area, ensure basic frequency of signal section loss resistance will not it is excessive under conditions of using the larger wire rod of skin resistance, that is, say, scarcely perceptible pulse
It is the wire with default impedance to rush ripple consumable module 300.Because for a certain impulse wave, its ceiling capacity is the line
Road and the energy storage of load total inductance, are a fixed valueBy skin resistance R wire rod, the power of its momentary loss is
I2R, the auxiliary voltage that terminal is formed is IR, therefore using the big wire rod of skin resistance, its duration also will be shorter, although micro-
Impulse wave is higher in the voltage that terminal is formed, but the voltage-stabiliser tube in having the second micro pulsator release module 200 at a high speed protect by breakdown
On the premise of shield, the effect for preferably eliminating micropulse wave action will can be obtained.
In the specific example of the present invention, when 10MHz signals transmit, 75 ohm of receiving terminal input impedance, wire rod
It is that two 10 meters of copper cash of 1.0mm and 0.3mm are made comparisons to choose external diameter.Skin depth approximate formula（Unit is
cm）, wherein f is the working frequency of circuit（Unit is Hz）, signal frequency fs takes 10MHz, pulse wave frequency rate fp to take 10GHz, its
Skin depth is respectively ε s=21um, and ε p=0.66um, 1.0mm conductor signals and micropulse ripple the skin net sectional area that becomes are As respectively
=0.066mm2, Ap=0.0021mm2, the resistance under 10 meters of length is by R=ρ L/S（Electricalresistivityρ=0.0175 of copper）Drawing respectively is
The Ω of Rs=2.65 Ω, Rp=83.The Ω of 0.3mm wires Rs=8.0 Ω, Rp=249, if the decay 20% of circuit dominant frequency is qualified, two
Money line meets the requirements, and the performance of the obvious anti-micropulse ripple of 0.3mm line is more preferable.This means that the small epidermis oxide layer of line footpath
Thick cheap wire rod has more preferable anti-impulse wave ability, can effectively reduce cost.
And in the generic transmission system that no A sections and C sections release area（Clamp diode speed inside usual driving chip
Degree is in nanosecond section, and also very big for the internal resistance of the bus plane released in psec area, the micropulse ripple in psec area cannot get substantially
Good absorption）, initial absorbability provides mainly by line capacitance, and thicker wire has relatively small skin resistance, energy
There is provided relatively good discharge capability, particularly silver jacketed wire has very shallow medium oxidative horizon, thus has more preferable extremely high frequency
Skin resistance, therefore they have the more excellent anti-micropulse wave energy power of the cheap wire rod for aoxidizing thickness smaller than line footpath.With regard to them
For the basic frequency of signal of the audio of transmission, video or even 100,000,000 nets, cheap line and high-grade line do not have actual meaning from the foregoing
The difference of justice.
Similarly in audio system, because dominant frequency is very low, signal code does not almost have Kelvin effect, in some of the present invention
In embodiment, the very thin iron material of skin layers that becomes caused by permeability height can be used, is there is the He of the first micro pulsator release module 100
Second micro pulsator release module 200 is released on the premise of guarantee, will be obtained micropulse ripple more more preferable than high-grade copper material and is suppressed effect
Fruit, cleaner in audible representation, bright, fine and smooth and accurate positioning, therefore, the present invention is in audio area to improving tonequality tool
There is epoch-making meaning.In one embodiment of the invention, as shown in figure 3, inductive load 205 can be loudspeaker 301, and
And second output end 204 be connected with the magnet of loudspeaker 301.In addition, the input 202 of first input end 201 and second and power amplifier
302 are respectively connected with.
In addition, power line, video line, 100,000,000 netting twines will also be obtained more preferable than copper material using the thick aluminium of medium oxidative horizon
EMC performances.
Except Kelvin effect can manufacture the loss of extremely high frequency, because the high frequency that the characteristic impedance change of wire is brought reflects effect
It can also should be used.Therefore, in some embodiments of the invention, the wire has multiple characteristic impedances discontinuous
Point.In high-frequency circuit, when signal passes through characteristic impedance discontinuity point, reflection can be brought, thus must also be brought because of reflection
Energy loss, two line segment characteristic impedance no-load voltage ratios are bigger, reflection it is more powerful, as the reason of Kelvin effect, can control
The no-load voltage ratio of good line segment characteristic impedance, while making the decay of dominant frequency in claimed range, cause the maximum loss of micropulse ripple.
Wherein, cable characteristic impedance simplifies formulaL is the inductance of unit length of cable, and C is unit cable
The electric capacity of length.In audio system, because signal frequency range and micropulse ripple center frequency difference obtain farther out, frequency is very low, characteristic
The reflection that impedance variations are brought is generally negligible, and some embodiments of the invention can use is interlocked phase with multigroup copper cash iron wire
The transmission line connect, as shown in Figure 3.Because the very big difference of two kinds of material permeabilities, brings L big change, such differential mode is micro-
The high-frequency energy loss of impulse wave will be decayed in a manner of geometry multiple, and the effect of its sense of hearing is greatly improved.
This is may reside in by the application of characteristic impedance reflection among all signal transmission, the change of its characteristic impedance
Change than the centre frequency depending on micropulse wave energy and main signal frequency ratio, while also depend on it to basic frequency signal
Whether decay is in reasonable interval.
In an embodiment of the present invention, the first micro pulsator release module 100, the and of the second micro pulsator release module 200
Micropulse ripple consumable module 300 forms the ∏ mode filters for filtering out micropulse ripple.It should be noted that in other realities of the present invention
Apply in example, the first micro pulsator release module 100, the second micro pulsator release module 200 and micropulse ripple consumable module 300
It can separate and combine, multigroup can also be used in conjunction certainly.
Because micropulse ripple extremely high frequency harmonic components enrich, in this frequency separation, the common mode pulse for possessing radiation characteristic is endangered
Evil is very big, in some embodiments of the invention, as shown in Figure 2 or Figure 3, anti-interference ring 400 is cased with outside the wire.Wherein,
Anti-interference ring 400 can be magnet ring or becket.It is understood that multigroup magnet ring and becket can be supplemented on wire for example
Gold-plated copper ring, there is better characteristics under extremely high frequency provided with gold-plated copper ring on wire.
Also for suppression common mode pulse, in an embodiment of the present invention, the wire is additionally provided with screen layer, that is,
Say, the wire employs shielding line, and inductive load such as speaker housings can also take grounding measures, effectively reduces radiation arteries and veins
Ripple is rushed, reduces impact of the common mode impulse wave to driving stage.
And in traditional signal transmission system, using the good advanced wire rod of high frequency performance（Such as silver jacketed wire, single crystal Cu
Line）, because its skin resistance in psec section is significantly less than common wire, thus the discharge capacity under very short time can be provided
Passage, this is that it is better than major reason of common copper cash system, but skin resistance is small while also brings shortcoming, i.e., by pulse
It is transmitted to driving stage energy less loss, but also can be because energy loss transmits energy back and forth with cable inductance, load inductance slowly
Amount vibrates.The present invention can form high pulse voltage, steady using the big common wire system of skin resistance in B sections
The heat energy loss changed on pressure pipe D1 is bigger, allows the duration of pulse to shorten, while turn avoid high pressure and output stage is rushed
Hit, so the better than good expensive wire rod of high frequency performance.Therefore, the device proposed by the present invention with micro pulse wave absorption function
Cost need not be greatlyd save using the good expensive wire rod of high frequency performance on transfer wire, there is very significant economic effect
Benefit.
The signal transmitting apparatus with micro pulse wave absorption function according to embodiments of the present invention, to impulse wave nanosecond with
Microsecond section is also equipped with the ability that the micropulse ripple to shorter time interval is absorbed on the basis of absorbing, and can effectively improve and sets
Standby EMC performances, reduce the mistake in high frequency data transfer, improve the radiation interference that perceptual system medium-high frequency switch is brought, simultaneously
The cost of circuit material can also be reduced, reduces the use of noble metal and high-grade copper material, there is very distinct economic.Especially exist
Audio area, the digital voice phenomenon of audio area can be eliminated, its improvement to tonequality also has special meaning.
A kind of in addition, as shown in figure 4, signal with micro pulse wave absorption function that another embodiment of the present invention proposes
Transmitting device includes first input end 201, the second input 202, the first output end 203 and the second output end 204 and scarcely perceptible pulse
Ripple is rushed to release module 500.Wherein, the first output end 203 and the second output end 204 are respectively connected with inductive load 205, micropulse
Ripple module 500 of releasing is arranged on the input, and its one end passes through wire and the phase of 201 and second input of first input end 202
Even, its other end is connected by wire with the first output end 203 and the second output end 204, for caused by inductive load 205
Micropulse ripple is released.The signal transmitting apparatus and above-described embodiment phase with micro pulse wave absorption function of the present embodiment
Than being only provided with micro pulsator release module in input, simplifying circuit structure, the effect for absorbing micropulse ripple is also very aobvious
Write.
Finally, as shown in figure 5, a kind of signal with micro pulse wave absorption function that another embodiment of the invention proposes
Transmitting device includes first input end 201, the second input 202, the first output end 203 and the second output end 204 and scarcely perceptible pulse
Ripple is rushed to release module 600.Wherein, the first output end 201 and the second output end 202 are respectively connected with inductive load 205, micropulse
Ripple module 600 of releasing is arranged on the output end, and its one end passes through wire and the phase of 201 and second input of first input end 202
Even, its other end is connected by wire with the first output end 203 and the second output end 204, for inductive load 205 and wire
Caused micropulse ripple is released.The signal transmitting apparatus with micro pulse wave absorption function of the present embodiment and above-mentioned implementation
Example is compared, and is only provided with micro pulsator release module in output end, similarly, is simplified circuit structure, is absorbed micropulse ripple
Effect is also very notable.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any
One or more embodiments or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is by appended claims and its equivalent limits.
Claims (10)
- A kind of 1. signal transmitting apparatus with micro pulse wave absorption function, it is characterised in that including：Input, span line and output end, wherein, the output end is connected with inductive load, the input and drive circuit It is connected；First micro pulsator release module, first micro pulsator release module is arranged on the output end, for described Micropulse ripple is released caused by inductive load；AndSecond micro pulsator release module, second micro pulsator release module is arranged on the input, for passing through The remaining micropulse ripple progress of first micro pulsator release module is secondary to release,Wherein, micropulse ripple refers to generate in femtosecond and psec section, by differential mode pulse, pulsed electromagnetic radiation and common mode arteries and veins The impulse wave of composition is rushed, first micro pulsator release module and the second micro pulsator release module include：Resistance；With the high frequency capacitance of multiple pf or ff ranks of the resistor coupled in parallel；AndThe voltage-stabiliser tube in parallel with the high frequency capacitance.
- 2. signal transmitting apparatus as claimed in claim 1, it is characterised in that the span line is micropulse ripple consumable module, The micropulse ripple consumable module is arranged between first micro pulsator release module and the second micro pulsator release module.
- 3. signal transmitting apparatus as claimed in claim 1 or 2, it is characterised in that the inductive load is loudspeaker.
- 4. signal transmitting apparatus as claimed in claim 3, it is characterised in that the output end includes the first output end and second Output end, second output end are connected with the magnet of the loudspeaker.
- 5. signal transmitting apparatus as claimed in claim 2, it is characterised in that first micro pulsator release module, described Second micro pulsator release module and the micropulse ripple consumable module form the ∏ mode filters for filtering out micropulse ripple.
- 6. signal transmitting apparatus as claimed in claim 2, it is characterised in that the micropulse ripple consumable module is with default The wire of impedance.
- 7. signal transmitting apparatus as claimed in claim 6, it is characterised in that the wire is provided with screen layer.
- 8. signal transmitting apparatus as claimed in claim 6, it is characterised in that be cased with magnet ring or becket outside the wire.
- 9. signal transmitting apparatus as claimed in claim 6, it is characterised in that the wire has multiple characteristic impedances discontinuous Point.
- 10. signal transmitting apparatus as claimed in claim 6, it is characterised in that second micro pulsator release module is also used Released in micropulse ripple caused by the wire.
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| CN201310354136.8A CN104378714B (en) | 2013-08-14 | 2013-08-14 | Signal transmitting apparatus with micro pulse wave absorption function |
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| CN104378714B true CN104378714B (en) | 2018-03-16 |
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| CN114648867B (en) * | 2022-02-18 | 2023-12-22 | 上海逸能智慧动力科技有限公司 | Remote control signal processing system of propeller, propeller and water-borne carrier |
| CN114878879B (en) * | 2022-07-11 | 2022-09-30 | 天津普智芯网络测控技术有限公司 | Detection pulse modulation and use method suitable for different communication ports |
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