CN208623636U - A kind of amplifying circuit for dynamic electrocardiogram recording instrument - Google Patents
A kind of amplifying circuit for dynamic electrocardiogram recording instrument Download PDFInfo
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- CN208623636U CN208623636U CN201820943746.XU CN201820943746U CN208623636U CN 208623636 U CN208623636 U CN 208623636U CN 201820943746 U CN201820943746 U CN 201820943746U CN 208623636 U CN208623636 U CN 208623636U
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Abstract
The utility model provides a kind of amplifying circuit for dynamic electrocardiogram recording instrument, including the signal source for exporting electrocardiosignal, for controlling the pre-amplification circuit and main amplifying circuit of signal gain, for filtering out the trap circuit and digital analog converter of Hz noise, the output end of the signal input sources is connect with the input terminal of pre-amplification circuit, and the output end of the pre-amplification circuit is connect with trap circuit, main amplifying circuit respectively；The input terminal connection of the output end and digital analog converter of the main amplifying circuit and the electrocardiosignal；The utility model guarantees to make shielding line and core wire equipotential when inputting common-mode signal, it is not influenced in difference mode signal input, in order to further increase the anti-interference ability of circuit, the interference that space electric field generates on human body is fundamentally reduced using driving circuit, using trap circuit, most of noise can be effectively removed, electrocardiosignal is enable preferably to transmit and show.
Description
Technical field
The utility model belongs to electronic circuit field, more particularly, to a kind of amplification electricity for dynamic electrocardiogram recording instrument
Road.
Background technique
With society development, living standards of the people continuous improvement and science and technology progress, people's health idea and
Deep variation all has occurred in the mode and approach for protecting health, and the current social that domestic medicine adapted to develops to obtain needs, it is
The product that contemporary new and high technology is combined with clinical treatment, it has also become the research hotspot of world today's medical field.Current city
Hospital is all laid particular emphasis in design for ECG detecting equipment on face and community medicine uses, and portable to what is be suitable for home use
ECG detecting equipment research is less.And there is also more problems, such as valence for family's use for existing ECG detecting equipment
The disadvantages of lattice are expensive, strongly professional, user's operation is inconvenient, intelligent relatively low.Therefore, it researchs and develops and is suitble to prevention and health care just
The formula cardiac electricity detecting system of taking has great significance.Domestic medicine realizes that medical treatment enters family, can implement at home to patient
Diagnosis, treatment, rehabilitation and health care.Domestic medicine meet modern society increasingly aging, medical expense grows to even greater heights and people
To the trend that health standard is continuously improved, while backwoodsman medical level can be improved in domestic medicine networking.Cause
This, the development of domestic medicine has powerful vitality.
Utility model content
In view of this, the utility model is directed to a kind of amplifying circuit for dynamic electrocardiogram recording instrument, by using
The circuit may be implemented patient and complete ECG examination at home, while wave parameter detection and heart rate measurement also may be implemented, this
System has the characteristics that cheap and easy to operate.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of amplifying circuit for dynamic electrocardiogram recording instrument, including the signal source for exporting electrocardiosignal, for controlling
The pre-amplification circuit and main amplifying circuit of signal gain processed, for filtering out the trap circuit and digital analog converter of Hz noise, institute
The output end for the signal source stated is connect with the input terminal of pre-amplification circuit, the output end of the pre-amplification circuit respectively with trap
Circuit, main amplifying circuit connection；The input terminal connection of the output end and digital analog converter of the main amplifying circuit and the heart
Electric signal.
Further, the pre-amplification circuit includes first resistor to the 6th resistance R1~R6, the first amplifier A1, the
One capacitor C1, the signal source anode and one end of first resistor R1, second resistance R2 are sequentially connected, and second resistance R2's is another
One end is connect with the non-inverting input terminal of one end of the 5th resistance R5 and the first amplifier A1 respectively；The cathode and third of signal source
Resistance R3, the 4th resistance R4 one end be sequentially connected, the other end of the 4th resistance R4 respectively with one end of the 6th resistance R6 and
The non-inverting input terminal of one amplifier A1 connects, the cathode voltage input termination positive voltage of the first amplifier A1, the first amplifier A1
Cathode voltage input end grounding, the output end of the first amplifier A1 respectively with the other end end of the 5th resistance R5 and C1 one
End connection.
Further, the main amplifying circuit includes the 7th resistance to eleventh resistor R7~R11, the second amplifier
A2, the second capacitor C2, third capacitor C3, the first capacitor C1 other end respectively with one end of the 7th resistance R7, the 9th electricity
Hinder R9 one end connection, the other end of the 9th resistance R9 respectively with one end of the 8th resistance R8, the second amplifier A2 it is same mutually defeated
Enter end connection, one end of the tenth resistance R10 is connect with the other end of the 6th resistance R6, the 7th resistance R7, the 8th resistance R8 respectively；
The other end of tenth resistance R10 respectively with the out-phase input terminal of the second amplifier A2, eleventh resistor R11 and third capacitor C3
One end connection, the output end of the second amplifier A2 is connect with the other end of the other end of R11, third capacitor C3 respectively, digital-to-analogue turns
The input terminal of parallel operation connects, the cathode voltage input termination positive voltage of the second amplifier A1, the cathode voltage of the second amplifier A2
Input termination second capacitor C2, C2 other end ground connection.
Further, the trap circuit includes twelfth resistor R12, thirteenth resistor R13, third amplifier A3,
4th capacitor C4 and the 5th capacitor C5, the other end of the 6th resistance R6 out-phase input terminal with third amplifier A3 respectively
Connected with input terminal, the non-inverting input terminal of the third amplifier respectively with thirteenth resistor R13, twelfth resistor R12 and
One end of 5th capacitor C5 connects, the third amplifier A3 positive voltage input end grounding, and third amplifier A3 cathode voltage is defeated
Enter the 4th capacitor one end of termination, the 4th capacitor other end ground connection.
Compared with the existing technology, a kind of amplifying circuit for dynamic electrocardiogram recording instrument described in the utility model have with
Lower advantage:
The utility model guarantees to make shielding line and core wire equipotential when inputting common-mode signal do not have in difference mode signal input
Have an impact, in order to further increase the anti-interference ability of circuit, space electric field is fundamentally reduced using driving circuit in human body
The interference of upper generation can effectively be removed most of noise, electrocardiosignal is enable preferably to transmit and show using trap circuit
Show.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new
The illustrative embodiments and their description of type are not constituteed improper limits to the present invention for explaining the utility model.?
In attached drawing:
Fig. 1 is circuit diagram described in the utility model embodiment；
Fig. 2 is circuit diagram described in the utility model embodiment.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
In the description of the present invention, it should be understood that term " center ", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate
Or imply that signified device or element must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot understand
For limitations of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating
Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result,
Feature can explicitly or implicitly include one or more of the features.It is in the description of the present invention, unless another
It is described, the meaning of " plurality " is two or more.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition
State the concrete meaning of term in the present invention.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
A kind of amplifying circuit for dynamic electrocardiogram recording instrument, including the signal source for exporting electrocardiosignal, for controlling
The pre-amplification circuit and main amplifying circuit of signal gain processed, for filtering out the trap circuit and digital analog converter of Hz noise, institute
The output end for the signal source stated is connect with the input terminal of pre-amplification circuit, the output end of the pre-amplification circuit respectively with trap
Circuit, main amplifying circuit connection；The input terminal connection of the output end and digital analog converter of the main amplifying circuit and the heart
Electric signal.
The pre-amplification circuit includes first resistor to the 6th resistance R1~R6, the first amplifier A1, first capacitor C1,
The signal source anode and one end of first resistor R1, second resistance R2 is sequentially connected, the other end difference of second resistance R2
It is connect with the non-inverting input terminal of one end of the 5th resistance R5 and the first amplifier A1；The cathode of signal source and 3rd resistor R3, the
One end of four resistance R4 is sequentially connected, the other end of the 4th resistance R4 respectively with one end of the 6th resistance R6 and the first amplifier A1
Non-inverting input terminal connection, the first amplifier A1 cathode voltage input termination positive voltage, the cathode voltage of the first amplifier A1
The output end of input end grounding, the first amplifier A1 is connect with the one end at the other end end of the 5th resistance R5 and C1 respectively.
The main amplifying circuit includes the 7th resistance to eleventh resistor R7~R11, the second amplifier A2, the second capacitor
C2, third capacitor C3, first capacitor C1 other end one end with one end of the 7th resistance R7, the 9th resistance R9 respectively
Connection, the other end of the 9th resistance R9 are connect with the non-inverting input terminal of one end of the 8th resistance R8, the second amplifier A2 respectively,
One end of tenth resistance R10 is connect with the other end of the 6th resistance R6, the 7th resistance R7, the 8th resistance R8 respectively；Tenth resistance
The other end of R10 connects with one end of the out-phase input terminal of the second amplifier A2, eleventh resistor R11 and third capacitor C3 respectively
It connects, the output end of the second amplifier A2 connect with the other end of the other end of R11, third capacitor C3 respectively, digital analog converter
Input terminal connection, the cathode voltage input termination positive voltage of the second amplifier A1, the cathode voltage input terminal of the second amplifier A2
Connect second capacitor C2, C2 other end ground connection.
The trap circuit includes twelfth resistor R12, thirteenth resistor R13, third amplifier A3, the 4th capacitor C4
With the 5th capacitor C5, the other end of the 6th resistance R6 respectively with the out-phase input terminal and input terminal of third amplifier A3
Connection, the non-inverting input terminal of the third amplifier respectively with thirteenth resistor R13, twelfth resistor R12 and the 5th capacitor
One end of C5 connects, the third amplifier A3 positive voltage input end grounding, third amplifier A3 cathode voltage input termination the
Four capacitor one end, the 4th capacitor other end ground connection.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (4)
1. a kind of amplifying circuit for dynamic electrocardiogram recording instrument, it is characterised in that: including the signal for exporting electrocardiosignal
Source, for controlling the pre-amplification circuit and main amplifying circuit of signal gain, for filtering out the trap circuit and digital-to-analogue of Hz noise
The output end of converter, the signal source is connect with the input terminal of pre-amplification circuit, the output end of the pre-amplification circuit
It is connect respectively with trap circuit, main amplifying circuit；The output end of the main amplifying circuit and the input terminal of digital analog converter connect
It connects and the electrocardiosignal.
2. a kind of amplifying circuit for dynamic electrocardiogram recording instrument according to claim 1, it is characterised in that: described is pre-
Amplifying circuit includes first resistor to the 6th resistance R1~R6, the first amplifier A1, first capacitor C1, and the signal source is positive
Be sequentially connected with one end of first resistor R1, second resistance R2, the other end of second resistance R2 respectively with the 5th resistance R5 one
End is connected with the non-inverting input terminal of the first amplifier A1；The cathode of signal source and 3rd resistor R3, the 4th resistance R4 one end according to
Secondary connection, the other end of the 4th resistance R4 connect with the non-inverting input terminal of one end of the 6th resistance R6 and the first amplifier A1 respectively
It connects, the cathode voltage input termination positive voltage of the first amplifier A1, the cathode voltage input end grounding of the first amplifier A1, first
The output end of amplifier A1 is connect with the one end at the other end end of the 5th resistance R5 and C1 respectively.
3. a kind of amplifying circuit for dynamic electrocardiogram recording instrument according to claim 2, it is characterised in that: the master
Amplifying circuit includes the 7th resistance to eleventh resistor R7~R11, the second amplifier A2, the second capacitor C2, third capacitor C3, institute
The first capacitor C1 other end stated is connect with one end of one end of the 7th resistance R7, the 9th resistance R9 respectively, the 9th resistance R9's
The other end is connect with the non-inverting input terminal of one end of the 8th resistance R8, the second amplifier A2 respectively, one end point of the tenth resistance R10
It is not connect with the other end of the 6th resistance R6, the 7th resistance R7, the 8th resistance R8；The other end of tenth resistance R10 is respectively with
Out-phase input terminal, the eleventh resistor R11 of two amplifier A2 is connected with one end of third capacitor C3, the output of the second amplifier A2
End is connect with the other end of the other end of R11, third capacitor C3 respectively, the input terminal of digital analog converter connects, the second amplifier
The cathode voltage input termination positive voltage of A1, cathode voltage input second capacitor C2, the C2 other end of termination of the second amplifier A2
Ground connection.
4. a kind of amplifying circuit for dynamic electrocardiogram recording instrument according to claim 2, it is characterised in that: described falls into
Wave circuit includes twelfth resistor R12, thirteenth resistor R13, third amplifier A3, the 4th capacitor C4 and the 5th capacitor C5, institute
The other end of the 6th resistance R6 stated is connect with the out-phase input terminal of third amplifier A3 and input terminal respectively, and the third is put
The non-inverting input terminal of big device is connect with one end of thirteenth resistor R13, twelfth resistor R12 and the 5th capacitor C5 respectively, described
Third amplifier A3 positive voltage input end grounding, the 4th capacitor one end of third amplifier A3 cathode voltage input termination, the 4th electricity
Hold other end ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820943746.XU CN208623636U (en) | 2018-06-19 | 2018-06-19 | A kind of amplifying circuit for dynamic electrocardiogram recording instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820943746.XU CN208623636U (en) | 2018-06-19 | 2018-06-19 | A kind of amplifying circuit for dynamic electrocardiogram recording instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208623636U true CN208623636U (en) | 2019-03-19 |
Family
ID=65701694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820943746.XU Active CN208623636U (en) | 2018-06-19 | 2018-06-19 | A kind of amplifying circuit for dynamic electrocardiogram recording instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208623636U (en) |
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2018
- 2018-06-19 CN CN201820943746.XU patent/CN208623636U/en active Active
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| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room 1-301, Building 10, Ligang Park, Shuanggang Industrial Zone, Shuanggang Town, Jinnan District, Tianjin Patentee after: LEPU ZHIXIN (TIANJIN) MEDICAL EQUIPMENT Co.,Ltd. Address before: 300300 Tianjin Binhai New Area High-tech Zone Huayuan Industrial Zone Patentee before: TIANJIN BAIFULI MEDICAL EQUIPMENT CO.,LTD. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231117 Address after: Building 3E, Tingwei Industrial Park, No. 6 Liufang Road, Zone 67, Xingdong Community, Xin'an Street, Bao'an District, Shenzhen City, Guangdong Province, 518000 Patentee after: SHENZHEN VIATOM TECHNOLOGY Co.,Ltd. Address before: Room 1-301, Building 10, Ligang Park, Shuanggang Industrial Zone, Shuanggang Town, Jinnan District, Tianjin Patentee before: LEPU ZHIXIN (TIANJIN) MEDICAL EQUIPMENT Co.,Ltd. |