CN105429600A - Signal enhancement circuit and signal enhancement device - Google Patents
Signal enhancement circuit and signal enhancement device Download PDFInfo
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- CN105429600A CN105429600A CN201510774922.2A CN201510774922A CN105429600A CN 105429600 A CN105429600 A CN 105429600A CN 201510774922 A CN201510774922 A CN 201510774922A CN 105429600 A CN105429600 A CN 105429600A
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/30—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters
- H03F1/303—Modifications of amplifiers to reduce influence of variations of temperature or supply voltage or other physical parameters using a switching device
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/45—Differential amplifiers
- H03F3/45071—Differential amplifiers with semiconductor devices only
- H03F3/45076—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier
- H03F3/45475—Differential amplifiers with semiconductor devices only characterised by the way of implementation of the active amplifying circuit in the differential amplifier using IC blocks as the active amplifying circuit
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Abstract
The present invention belongs to the field of signal processing, and provides a signal enhancement circuit and a signal enhancement device. The signal enhancement circuit comprising a signal enhancement module, a voltage regulation module, a main control module and a wireless control device is employed, wherein the signal enhancement module enhances a differential mode signal outputted by a differential mode signal source according to a preset enhancement fold; the voltage regulation module outputs an enhancement signal according to the signal outputted by the signal enhancement module and a reference voltage signal; and the main control module detects the signal enhancement module according to an initialization signal outputted by the wireless control device and outputs a feedback signal to the voltage regulation module according to a detection result, so as to eliminate an interference signal in the voltage regulation module and realize an automatic initialization function. The signal enhancement circuit provided by an embodiment of the present invention has the characteristics of high efficiency and simple design.
Description
Technical field
The invention belongs to signal transacting field, particularly a kind of signal intensifier circuit and signal intensifier.
Background technology
Signal transacting with powerful penetration, adopt by many important applications.Engineering construction department is used for the earthquake resistance and prevention performance of large-scale simulation building structure; Machinery manufacturing industry in order to analyze the model of mechanical oscillatory structure, thus improves vibration performance and structure; For checking drive characteristic and the abrasion condition of engine in aircraft industry; The classification of space remote sensing in order to ground vegetation situation and the distribution of meteorological cloud layer, medical domain is used for the analyzing and diagnosing of B ultrasonic, X-ray and electro-physiological signals; Telecommunications and person in electronics, Digital Signal Processing is the most directly applied especially.
In current signal transacting, generally need to carry out enhancing process to signal, but current signal strengthens treatment circuit, and generally to there is efficiency low, the problem that design is complicated.
Summary of the invention
The object of the present invention is to provide a kind of signal intensifier circuit, be intended to solve the problem that existing signal intensifier circuit efficiency is low, design is complicated.
The present invention is achieved in that a kind of signal intensifier circuit, and be connected with control device of wireless and the difference mode signal source exporting difference mode signal, described signal intensifier circuit also comprises:
First input end and the second input are connected the first output and second output in described difference mode signal source respectively, carry out strengthening processing and exporting the signal that the first enhancing signal and second strengthens signal strengthening module according to default intensification factor to described difference mode signal;
First test side and the second test side are connected the first output and the second output that described signal strengthens module respectively, first test side and the second test side receive described first respectively and strengthen signal and second and strengthen signal, initialization trigger end connects the output of described control device of wireless, initialization test side receives initialization detection signal, the initializing signal exported according to described control device of wireless and described initialization detection signal strengthen signal and described second to described first and strengthen signal and analyze and export the first feedback signal, second feedback signal main control module,
First input end and the second input are connected the first output and the second output that described signal strengthens module respectively, first control end, second control end and initialization feedback end connect the first feedback end of described main control module respectively, second feedback end and described initialization test side, reference voltage end access reference voltage signal, signal is strengthened according to described first, described second strengthens signal and described reference voltage signal output enhancing signal, and strengthen signal according to described first feedback signal and described second feedback signal to described second and carry out voltage-regulation, export the Voltage Regulator Module of described initialization detection signal simultaneously.
Another object of the present invention is also to provide a kind of signal intensifier, comprises housing, and described signal intensifier also comprises above-mentioned signal intensifier circuit.
The present invention comprises described signal by employing and strengthens module, described Voltage Regulator Module, the signal intensifier circuit of described main control module and control device of wireless, strengthen module by described signal, according to default intensification factor, enhancing process is carried out to the difference mode signal that described difference mode signal source exports, strengthened signal and the described reference voltage signal output enhancing signal of module output according to described signal by described Voltage Regulator Module, strengthen module according to the described initializing signal that described control device of wireless exports to signal by described main control module to detect, and according to testing result output feedback signal to described Voltage Regulator Module, to eliminate the interference signal in Voltage Regulator Module, achieve auto-initiation function.The signal intensifier circuit that the embodiment of the present invention provides has that efficiency is high, the feature of simplicity of design.
Accompanying drawing explanation
Fig. 1 is the function structure chart of the signal intensifier circuit that the embodiment of the present invention provides;
Fig. 2 is the exemplary circuit structure chart of the signal enhancing module that the embodiment of the present invention provides;
Fig. 3 is the exemplary circuit structure chart of the main control module that the embodiment of the present invention provides;
Fig. 4 is the exemplary circuit structure chart of the Voltage Regulator Module that the embodiment of the present invention provides;
Fig. 5 is the exemplary circuit structure chart of the control device of wireless that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The present invention comprises by adopting the signal intensifier circuit that signal strengthens module, Voltage Regulator Module and main control module, achieve automatic direct function of initializing, and whole signal intensifier circuit to have perfect in shape and function, volume little, simple to operate and without the need to independently-powered advantage.
Fig. 1 shows the modular structure of the signal intensifier circuit that the embodiment of the present invention provides, and for convenience of explanation, illustrate only part related to the present invention, details are as follows:
The signal intensifier circuit that the embodiment of the present invention provides is connected with control device of wireless 50 and the difference mode signal source 10 exporting difference mode signal, and signal intensifier circuit also comprises:
First input end and the second input are connected the first output and second output in difference mode signal source 10 respectively, carry out strengthening processing and exporting the signal that the first enhancing signal and second strengthens signal strengthening module 20 according to default intensification factor to difference mode signal.
First test side and the second test side respectively connection signal strengthen the first output and second output of module 20, first test side and the second test side receive the first enhancing signal and second respectively and strengthen signal, initialization trigger end connects the output of control device of wireless 50, initialization test side receives initialization detection signal, and the initializing signal exported according to control device of wireless 50 and initialization detection signal strengthen signal and second to first and strengthen signal and analyze and export the first feedback signal, the second feedback signal main control module 30.
First input end and the second input respectively connection signal strengthen the first output and second output of module 20, first control end, second control end and initialization feedback end connect the first feedback end of main control module 30 respectively, second feedback end and initialization test side, reference voltage end access reference voltage signal, signal is strengthened according to first, second strengthens signal and reference voltage signal output enhancing signal, and strengthen signal according to the first feedback signal and the second feedback signal to second and carry out voltage-regulation, export the Voltage Regulator Module 40 of initialization detection signal simultaneously.
In embodiments of the present invention, difference mode signal source 10 can be the signal source that the temperature sensor of output difference mould signal, humidity sensor or pressure sensor etc. export difference mode signal.
In embodiments of the present invention, the enhancing signal that Voltage Regulator Module 40 exports can access in computer in control device of wireless 50 or controller, to realize automatic control.
In embodiments of the present invention, the reference voltage signal accessed can be provided by existing voltage stabilizing circuit.
In embodiments of the present invention, institute's difference mode signal source 10 belongs to a module in a sensing circuit.
The signal that Fig. 2 shows the embodiment of the present invention to be provided strengthens the exemplary circuit structure of module 20, and for convenience of explanation, illustrate only part related to the present invention, details are as follows:
As one embodiment of the invention, signal strengthens module 20 and comprises:
Resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, diode D1, diode D2, diode D3, diode D4, the first computing booster U1, the second computing booster U2 and the first K switch 1;
The first end of resistance R1, the first end of electric capacity C2 and the output of the first computing booster U1 connect altogether and form the second output that signal strengthens module 20, second end of resistance R1, second end of electric capacity C2 and the end of oppisite phase of the first computing booster U1 are connected to the common port of the first K switch 1 altogether, and the negative electrode of diode D1 connects external power source VCC, the anode of diode D1, the negative electrode of diode D2, the first end of electric capacity C1 and the in-phase end of the first computing booster U1 connect altogether and form the second input that signal strengthens module 20, and second end of electric capacity C1 and the anode of diode D2 are connected to ground altogether, the first end of the first K switch 1, second end, 3rd end, the first end of the 4th end and five terminal difference contact resistance R2, the first end of resistance R3, the first end of resistance R4, the first end of resistance R5 and the first end of resistance R6, second end of resistance R2, second end of resistance R3, second end of resistance R4, second end of resistance R5, second end of resistance R6, the first end of electric capacity C4 and the first end of resistance R7 are connected to the end of oppisite phase of the second computing booster U2 altogether, second end of electric capacity C4, second end of resistance R7 and the output of the second computing booster U2 connect altogether and form the first output that signal strengthens module 20, the anode of diode D3, the negative electrode of diode D4, the first end of electric capacity C3 and the in-phase end of the second computing booster U2 connect altogether and form the first input end that signal strengthens module 20, and the negative electrode of diode D3 meets external power source VCC, and second end of electric capacity C3 and the anode of diode D4 are connected to ground altogether.
In embodiments of the present invention, the rotary switch that first K switch 1 can be thrown for hilted broadsword more, the resistance value of resistance R2, resistance R3, resistance R4, resistance R5 and resistance R6 is all not identical, when utilizing the first K switch 1 selected wherein a certain resistance, namely signal enhancing module 20 have selected the enhancing coefficient corresponding to this resistance.User according to self-demand, freely can select the resistance that resistance is suitable, also can freely increase and decrease resistance quantity according to the number of terminals of the first K switch 1, strengthens the numbers of gear steps of module 20 and the enhancing coefficient of corresponding gear with signalization.
In embodiments of the present invention, external power source VCC can be conventional DC power supply, and the power supply that external power source VCC can also be used with the sensing circuit comprising described difference mode signal source 10 is same power supply.
Fig. 3 shows the exemplary circuit structure of the main control module 30 that the embodiment of the present invention provides, and for convenience of explanation, illustrate only part related to the present invention, details are as follows:
As one embodiment of the invention, main control module 30 comprises:
Resistance R8, resistance R9, resistance R10, resistance R11, control chip U3, the first filtration module 31 and the second filtration module 32;
The first end of resistance R8 and the first end of resistance R9 are connected to the first test side DIF+ of control chip altogether, the second end ground connection of resistance R8, second end of resistance R9 is the first test side of main control module 30, the first end of resistance R10 and the first end of resistance R11 are connected to the second test side DIF-of control chip altogether, the second end ground connection of resistance R10, second end of resistance R11 is the second test side of main control module 30, the first feedback end DA1 of control chip U3 connects the input of the first filtration module 31, the output of the first filtration module 31 is first feedback ends of main control module 30, the second feedback end DA2 of control chip U3 connects the input of the second filtration module 32, the output of the second filtration module 32 is second feedback ends of main control module 30, the initialization test side ATZ of control chip U3 is the initialization test side of main control module 30, the initialization trigger end MC of control chip U3 is the initialization trigger end of main control module 30, the power end VCC1 of control chip U3 connects external power source VCC, the earth terminal GND ground connection of control chip U3.
First filtration module 31 comprises the filtering submodule 301 of one or more serial connection, second filtration module 32 comprises the filtering submodule 301 of one or more serial connection, and each the filtering submodule 301 in one or more filtering submodule 301 comprises resistance R12 and electric capacity C5;
The first end of resistance R12 is the input of filtering submodule 301, and second end of resistance R12 and the first end of electric capacity C5 connect the output forming filtering submodule 301 altogether, the second end ground connection of electric capacity C5.
In embodiments of the present invention, control chip U3 can be 51 series or the serial singlechip chip of TI.
Fig. 4 shows the exemplary circuit structure of the Voltage Regulator Module 40 that the embodiment of the present invention provides, and for convenience of explanation, illustrate only part related to the present invention, details are as follows:
As one embodiment of the invention, Voltage Regulator Module 40 comprises:
Resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, electric capacity C6, electric capacity C7, diode D5, the 3rd computing booster U4, the 4th computing booster U5 and the 5th computing booster U6.
The first end of resistance R13 is the first input end of Voltage Regulator Module 40, second end of resistance R13, the first end of resistance R14, the first end of electric capacity C6 and the end of oppisite phase of the 3rd computing booster U4 connect the reference voltage end of coating-forming voltage adjustment module 40 altogether, second end of resistance R14, second end of electric capacity C6, the first end of resistance R15 and the first end of resistance R16 are connected to the output of the 3rd computing booster U4 altogether, second end of resistance R15, the first end of electric capacity C7 and the anode of diode D5 connect the initialization feedback end of coating-forming voltage adjustment module 40 altogether, the second end ground connection of electric capacity C7, the negative electrode of diode D5 connects external power source VCC, second end of resistance R16 is the output of Voltage Regulator Module 40, the in-phase end of the 3rd computing booster U4, the output of the 4th computing booster U5, the end of oppisite phase of the 4th computing booster U5 and the first end of resistance R17 are connected to the first end of resistance R18 altogether, second end of resistance R18 is the second input of Voltage Regulator Module 40, second end of resistance R17, the output of the 5th computing booster U6 is connected to the end of oppisite phase of the 5th computing booster U6 altogether, the in-phase end of the 4th computing booster U5 is the first control end of Voltage Regulator Module 40, the in-phase end of the 5th computing booster U6 is the second control end of Voltage Regulator Module 40.
Fig. 5 shows the exemplary circuit structure of the control device of wireless 50 that the embodiment of the present invention provides, and for convenience of explanation, illustrate only part related to the present invention, details are as follows:
As one embodiment of the invention, control device of wireless 50 comprises Long-distance Control chip U7 and second switch K2;
The power end VCC2 of Long-distance Control chip U7 connects external power source VCC, the input IN of Long-distance Control chip U7 is the input of control device of wireless 50, the output of the output OUT control device of wireless 50 of Long-distance Control chip U7, the earth terminal GND ground connection of Long-distance Control chip U7, the first end of second switch K2 connects the output OUT of Long-distance Control chip U7, the second end ground connection of second switch K2.
In embodiments of the present invention, Long-distance Control chip can be the control chip of computer or controller inside.
In embodiments of the present invention, user can also send initializing signal by second switch K2 directly to main control module 30.
Below in conjunction with Fig. 1 to Fig. 5, the operation principle of signal intensifier circuit provided by the present invention is described further:
After signal intensifier circuit is started working, signal strengthens the first input end of module 20 and the second input, and to receive amplitude respectively identical, the difference mode signal that phase place is contrary.After the filter network that diode and electric capacity are formed, carry out enhancing respectively by the first computing booster U1 and the second computing booster U2 and process.Wherein, the first computing booster U1 exports first and strengthens signal, and the second computing booster U2 exports second and strengthens signal.The enhancing that this place is carried out also includes the enhancing to interference signal.Transport booster U4 strengthens signal and second according to reference voltage signal, first and strengthens the strong signal of fes signal output.
Long-range chip U7 receives and strengthens signal, judges whether to need to carry out initialization process to enhancing signal, if desired, then export initializing signal to main control module 30 according to internal algorithm.User also according to the judgement of oneself, can export initializing signal by second switch K2 directly to main control module 30.
When control chip U3 receives initializing signal, first test side of main control module 30 and the second test side respectively detection signal strengthen that module 20 exports first strengthen signal and second and strengthen signal, institute's detection signal is analyzed, calculate and need to carry out the magnitude of voltage that feeds back, and export the first feedback signal, the second feedback signal carries out Voltage Cortrol to Voltage Regulator Module 40 internal electrical signal.Eliminate interference signal to realize function of initializing.Meanwhile, main control module 30 also judges initialization effect according to initialization detection signal, as undesirable in initialization detection signal, then repeat said process again, until initialization detection signal meets the requirements.
Another object of the embodiment of the present invention is also to provide a kind of signal intensifier, and comprise housing, signal intensifier also comprises above-mentioned signal intensifier circuit.
The embodiment of the present invention comprises signal by employing and strengthens module 20, Voltage Regulator Module 40, the signal intensifier circuit of main control module 30, strengthen module 20 by signal, according to default intensification factor, enhancing process is carried out to the difference mode signal that difference mode signal source 10 exports, strengthen the signal that exports of module 20 and reference voltage signal by Voltage Regulator Module 40 according to signal to export and strengthen signal, strengthen module 20 according to the initializing signal that control device of wireless 50 exports to signal by main control module 30 to detect, and according to testing result output feedback signal to Voltage Regulator Module 40, to eliminate the interference signal in Voltage Regulator Module 40, achieve auto-initiation function.The signal intensifier circuit that the embodiment of the present invention provides has that efficiency is high, the advantage of simplicity of design.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a signal intensifier circuit, be connected with control device of wireless and the difference mode signal source exporting difference mode signal, it is characterized in that, described signal intensifier circuit also comprises:
First input end and the second input are connected the first output and second output in described difference mode signal source respectively, carry out strengthening processing and exporting the signal that the first enhancing signal and second strengthens signal strengthening module according to default intensification factor to described difference mode signal;
First test side and the second test side are connected the first output and the second output that described signal strengthens module respectively, first test side and the second test side receive described first respectively and strengthen signal and second and strengthen signal, initialization trigger end connects the output of described control device of wireless, initialization test side receives initialization detection signal, the initializing signal exported according to described control device of wireless and described initialization detection signal strengthen signal and described second to described first and strengthen signal and analyze and export the first feedback signal, the main control module of the second feedback signal,
First input end and the second input are connected the first output and the second output that described signal strengthens module respectively, first control end, second control end and initialization feedback end connect the first feedback end of described main control module respectively, second feedback end and described initialization test side, reference voltage end access reference voltage signal, signal is strengthened according to described first, described second strengthens signal and described reference voltage signal output enhancing signal, and strengthen signal according to described first feedback signal and described second feedback signal to described second and carry out voltage-regulation, export the Voltage Regulator Module of described initialization detection signal simultaneously.
2. signal intensifier circuit as claimed in claim 1, is characterized in that, described signal strengthens module and comprises:
Resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, diode D1, diode D2, diode D3, diode D4, the first computing booster, the second computing booster and the first switch;
The first end of described resistance R1, the first end of described electric capacity C2 and the output of described first computing booster connect altogether and form the second output that described signal strengthens module, second end of described resistance R1, second end of described electric capacity C2 and the end of oppisite phase of described first computing booster are connected to the common port of described first switch altogether, and the negative electrode of described diode D1 connects external power source, the anode of described diode D1, the negative electrode of described diode D2, the first end of described electric capacity C1 and the in-phase end of described first computing booster connect altogether and form the second input that described signal strengthens module, and second end of described electric capacity C1 and the anode of described diode D2 are connected to ground altogether, the first end of described first switch, second end, 3rd end, 4th end and five terminal connect the first end of described resistance R2 respectively, the first end of described resistance R3, the first end of described resistance R4, the first end of described resistance R5 and the first end of described resistance R6, second end of described resistance R2, second end of described resistance R3, second end of described resistance R4, second end of described resistance R5, second end of described resistance R6, the first end of described electric capacity C4 and the first end of described resistance R7 are connected to the end of oppisite phase of described second computing booster altogether, second end of described electric capacity C4, second end of described resistance R7 and the output of described second computing booster connect altogether and form the first output that described signal strengthens module, the anode of described diode D3, the negative electrode of described diode D4, the first end of described electric capacity C3 and the in-phase end of described second computing booster connect altogether and form the first input end that described signal strengthens module, the negative electrode of described diode D3 connects described external power source, and second end of described electric capacity C3 and the anode of described diode D4 are connected to ground altogether.
3. signal intensifier circuit as claimed in claim 2, it is characterized in that, described first switch is the rotary switch that hilted broadsword is thrown more, and the resistance value of described resistance R2, described resistance R3, described resistance R4, described resistance R5 and described resistance R6 is all not identical.
4. signal intensifier circuit as claimed in claim 1, it is characterized in that, described main control module comprises:
Resistance R8, resistance R9, resistance R10, resistance R11, control chip, the first filtration module and the second filtration module;
The first end of described resistance R8 and the first end of described resistance R9 are connected to the first test side of described control chip altogether, the second end ground connection of described resistance R8, second end of described resistance R9 is the first test side of described main control module, the first end of described resistance R10 and the first end of described resistance R11 are connected to the second test side of described control chip altogether, the second end ground connection of described resistance R10, second end of described resistance R11 is the second test side of described main control module, first feedback end of described control chip connects the input of described first filtration module, the output of described first filtration module is the first feedback end of described main control module, second feedback end of described control chip connects the input of described second filtration module, the output of described second filtration module is the second feedback end of described main control module, the initialization test side of described control chip is the initialization test side of described main control module, the initialization trigger end of described control chip is the initialization trigger end of described main control module, the power end of described control chip connects external power source, the earth terminal ground connection of described control chip.
5. the first filtration module described in comprises the filtering submodule of one or more serial connection, described second filtration module comprises the filtering submodule of one or more serial connection, and each the filtering submodule in described one or more filtering submodule comprises resistance R12 and electric capacity C5;
The first end of described resistance R12 is the input of described filtering submodule, and second end of described resistance R12 and the first end of described electric capacity C5 connect the output forming described filtering submodule altogether, the second end ground connection of described electric capacity C5.
6. signal intensifier circuit as claimed in claim 1, it is characterized in that, described Voltage Regulator Module comprises:
Resistance R13, resistance R14, resistance R15, resistance R16, resistance R17, resistance R18, electric capacity C6, electric capacity C7, diode D5, the 3rd computing booster, the 4th computing booster and the 5th computing booster.
7. the first end of resistance R13 described in is the first input end of described Voltage Regulator Module, second end of described resistance R13, the first end of described resistance R14, the first end of described electric capacity C6 and the end of oppisite phase of described 3rd computing booster connect the reference voltage end forming described Voltage Regulator Module altogether, second end of described resistance R14, second end of described electric capacity C6, the first end of described resistance R15 and the first end of described resistance R16 are connected to the output of described 3rd computing booster altogether, second end of described resistance R15, the first end of described electric capacity C7 and the anode of described diode D5 connect the initialization feedback end forming described Voltage Regulator Module altogether, the second end ground connection of described electric capacity C7, the negative electrode of described diode D5 connects external power source, second end of described resistance R16 is the output of described Voltage Regulator Module, the in-phase end of described 3rd computing booster, the output of described 4th computing booster, the end of oppisite phase of described 4th computing booster and the first end of described resistance R17 are connected to the first end of described resistance R18 altogether, second end of described resistance R18 is the second input of Voltage Regulator Module, second end of described resistance R17, the output of described 5th computing booster is connected to the end of oppisite phase of described 5th computing booster altogether, the in-phase end of described 4th computing booster is the first control end of described Voltage Regulator Module, the in-phase end of described 5th computing booster is the second control end of described Voltage Regulator Module.
8. the signal intensifier circuit as described in any one of claim 2 to 5, the described external power source power supply used with comprising the sensing circuit in described difference mode signal source is same power supply.
9. a signal intensifier, comprises housing, it is characterized in that, described signal intensifier also comprises the signal intensifier circuit as described in any one of claim 1 to 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510774922.2A CN105429600A (en) | 2015-11-13 | 2015-11-13 | Signal enhancement circuit and signal enhancement device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510774922.2A CN105429600A (en) | 2015-11-13 | 2015-11-13 | Signal enhancement circuit and signal enhancement device |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6693486B1 (en) * | 1999-02-15 | 2004-02-17 | Krohne Messtechnik Gmbh & Co. | Signal-processing circuit for a differential voltage, especially for a magnetoinductive flowmeter |
| CN1930775A (en) * | 2004-03-09 | 2007-03-14 | 株式会社丰田自动织机 | Pilot signal detecting circuit, and semiconductor integrated circuit incorporating that circuit |
| CN203406837U (en) * | 2013-07-12 | 2014-01-22 | 精量电子（深圳）有限公司 | Signal amplification circuit and signal amplifier |
-
2015
- 2015-11-13 CN CN201510774922.2A patent/CN105429600A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6693486B1 (en) * | 1999-02-15 | 2004-02-17 | Krohne Messtechnik Gmbh & Co. | Signal-processing circuit for a differential voltage, especially for a magnetoinductive flowmeter |
| CN1930775A (en) * | 2004-03-09 | 2007-03-14 | 株式会社丰田自动织机 | Pilot signal detecting circuit, and semiconductor integrated circuit incorporating that circuit |
| CN203406837U (en) * | 2013-07-12 | 2014-01-22 | 精量电子（深圳）有限公司 | Signal amplification circuit and signal amplifier |
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Application publication date: 20160323 |