CN205160478U - Electrocardiogram detector electrocardio signal amplification circuit - Google Patents
Electrocardiogram detector electrocardio signal amplification circuit Download PDFInfo
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- CN205160478U CN205160478U CN201520847062.6U CN201520847062U CN205160478U CN 205160478 U CN205160478 U CN 205160478U CN 201520847062 U CN201520847062 U CN 201520847062U CN 205160478 U CN205160478 U CN 205160478U
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Abstract
The utility model discloses an electrocardiogram detector electrocardio signal amplification circuit, including resistance R1, resistance R9, emitting diode LED, triode Q1, potentiometre RP4, diode D2 and electric capacity C14, resistance R9 one end is connecting resistance R16 respectively, triode Q4 base and incoming signal vi, potentiometre R6 is connected to the resistance R9 other end, electric capacity C14 is connected respectively to the potentiometre R6 other end, the potentiometre R6 other end, triode Q1 projecting pole, triode Q2 collecting electrode and electric capacity C15, anodal and the output vo of emitting diode LED is connected respectively to the electric capacity C15 other end, triode Q2 projecting pole is connected respectively to the emitting diode LED negative pole, electric capacity C19, resistance R1, resistance R18 and resistance R16 and ground connection. The utility model discloses electrocardiogram detector electrocardio signal amplification circuit introduces alternating current -direct current voltage parallel negative -feedback in the circuit, quiescent operation point that on the one hand can stabilizing amplifier has also improved non linear distortion simultaneously, and circuit structure is simple, and is with low costs, small.
Description
Technical field
The utility model relates to a kind of signal amplification circuit, specifically a kind of electrocardioscanner electrocardiosignal amplifying circuit.
Background technology
Existing electrocardioscanner all volume is very large, and its miniaturized needs is optimized the various circuit of inside, and electrocardiosignal amplifying circuit is as the requisite circuit composition in electrocardioscanner inside, is the emphasis studied in industry to its optimization always.
Utility model content
The purpose of this utility model is to provide a kind of electrocardioscanner electrocardiosignal amplifying circuit, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the utility model provides following technical scheme:
A kind of electrocardioscanner electrocardiosignal amplifying circuit, comprises resistance R1, resistance R9, LED, triode Q1, potentiometer RP4, diode D2 and electric capacity C14, described resistance R9 one end is contact resistance R16 respectively, triode Q4 base stage and input signal Vi, the resistance R9 other end connects potentiometer R6, and the potentiometer R6 other end connects electric capacity C14 respectively, the potentiometer R6 other end, triode Q1 emitter, triode Q2 collector electrode and electric capacity C15, the electric capacity C15 other end is connecting luminous diode LED positive pole and output end vo respectively, and LED negative pole is connecting triode Q2 emitter respectively, electric capacity C19, resistance R1, resistance R18 and resistance R16 ground connection, the electric capacity C19 other end is the contact resistance R18 other end and triode Q4 emitter respectively, and the described resistance R1 other end is connecting triode Q2 base stage respectively, diode D2 negative pole and triode Q4 collector electrode, diode D2 positive pole connects potentiometer R4, and the potentiometer R4 other end is contact resistance R3 respectively, potentiometer R4 slide plate and triode Q1 base stage, the resistance R3 other end connects the electric capacity C14 other end and resistance R2 respectively, and the resistance R2 other end is connecting triode Q1 collector electrode and power supply VCC respectively.
As the utility model further scheme: described power supply VCC voltage is 5V.
Compared with prior art, the beneficial effects of the utility model are: combined-voltage Shunt negative feedback introduced in circuit by the utility model electrocardioscanner electrocardiosignal amplifying circuit, on the one hand can the quiescent point of stabilizing amplifier, also improve nonlinear distortion simultaneously, circuit structure is simple, cost is low, and volume is little.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of electrocardioscanner electrocardiosignal amplifying circuit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, in the utility model embodiment, a kind of electrocardioscanner electrocardiosignal amplifying circuit, comprises resistance R1, resistance R9, LED, triode Q1, potentiometer RP4, diode D2 and electric capacity C14, resistance R9 one end is contact resistance R16 respectively, triode Q4 base stage and input signal Vi, the resistance R9 other end connects potentiometer R6, and the potentiometer R6 other end connects electric capacity C14 respectively, the potentiometer R6 other end, triode Q1 emitter, triode Q2 collector electrode and electric capacity C15, the electric capacity C15 other end is connecting luminous diode LED positive pole and output end vo respectively, and LED negative pole is connecting triode Q2 emitter respectively, electric capacity C19, resistance R1, resistance R18 and resistance R16 ground connection, the electric capacity C19 other end is the contact resistance R18 other end and triode Q4 emitter respectively, and the described resistance R1 other end is connecting triode Q2 base stage respectively, diode D2 negative pole and triode Q4 collector electrode, diode D2 positive pole connects potentiometer R4, and the potentiometer R4 other end is contact resistance R3 respectively, potentiometer R4 slide plate and triode Q1 base stage, the resistance R3 other end connects the electric capacity C14 other end and resistance R2 respectively, and the resistance R2 other end is connecting triode Q1 collector electrode and power supply VCC respectively.
Power supply VCC voltage is 5V.
Operation principle of the present utility model is: refer to Fig. 1, be made up of transistor Q4 and promote level, Q1, Q2 is NPN and the positive-negative-positive transistor of a pair parameter symmetry, Q4 pipe works in Class A state, its collector current is regulated by potentiometer R6, a part for this electric current flows through potentiometer R4 and diode D2, to Q1, Q2 provides bias voltage, regulate R4, Q1 can be made, Q2 obtains suitable quiescent current and works in first, Class B state, to overcome intermodulation distortion, output mid point (Q1 is required time static, the emitter of Q2) current potential U=2.5V, can realize by regulating R6, again because an end of R6 is connected on output mid point, therefore, introduce combined-voltage Shunt negative feedback in circuit, on the one hand can the quiescent point of stabilizing amplifier, also improve nonlinear distortion simultaneously.
To those skilled in the art, obvious the utility model is not limited to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present utility model or essential characteristic, can realize the utility model in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present utility model is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the utility model.Any Reference numeral in claim should be considered as the claim involved by limiting.
In addition, be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technical scheme in each embodiment also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
Claims (2)
1. an electrocardioscanner electrocardiosignal amplifying circuit, comprises resistance R1, resistance R9, LED, triode Q1, potentiometer RP4, diode D2 and electric capacity C14, is characterized in that, described resistance R9 one end is contact resistance R16 respectively, triode Q4 base stage and input signal Vi, the resistance R9 other end connects potentiometer R6, and the potentiometer R6 other end connects electric capacity C14 respectively, the potentiometer R6 other end, triode Q1 emitter, triode Q2 collector electrode and electric capacity C15, the electric capacity C15 other end is connecting luminous diode LED positive pole and output end vo respectively, and LED negative pole is connecting triode Q2 emitter respectively, electric capacity C19, resistance R1, resistance R18 and resistance R16 ground connection, the electric capacity C19 other end is the contact resistance R18 other end and triode Q4 emitter respectively, and the described resistance R1 other end is connecting triode Q2 base stage respectively, diode D2 negative pole and triode Q4 collector electrode, diode D2 positive pole connects potentiometer R4, and the potentiometer R4 other end is contact resistance R3 respectively, potentiometer R4 slide plate and triode Q1 base stage, the resistance R3 other end connects the electric capacity C14 other end and resistance R2 respectively, and the resistance R2 other end is connecting triode Q1 collector electrode and power supply VCC respectively.
2. electrocardioscanner electrocardiosignal amplifying circuit according to claim 1, is characterized in that, described power supply VCC voltage is 5V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520847062.6U CN205160478U (en) | 2015-10-29 | 2015-10-29 | Electrocardiogram detector electrocardio signal amplification circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520847062.6U CN205160478U (en) | 2015-10-29 | 2015-10-29 | Electrocardiogram detector electrocardio signal amplification circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205160478U true CN205160478U (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520847062.6U Expired - Fee Related CN205160478U (en) | 2015-10-29 | 2015-10-29 | Electrocardiogram detector electrocardio signal amplification circuit |
Country Status (1)
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| CN (1) | CN205160478U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105769179A (en) * | 2016-04-29 | 2016-07-20 | 上海夏先机电科技发展有限公司 | Portable twelve-lead electrocardiographic signal synchronous collecting device |
| CN106444667A (en) * | 2016-09-30 | 2017-02-22 | 广西大学 | Intelligent communication control system of Internet of Things |
| CN108309280A (en) * | 2018-02-11 | 2018-07-24 | 许少辉 | The signal intensifier circuit of electrocardiograph |
-
2015
- 2015-10-29 CN CN201520847062.6U patent/CN205160478U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105769179A (en) * | 2016-04-29 | 2016-07-20 | 上海夏先机电科技发展有限公司 | Portable twelve-lead electrocardiographic signal synchronous collecting device |
| CN105769179B (en) * | 2016-04-29 | 2018-04-20 | 上海夏先机电科技发展有限公司 | A kind of portable 12 lead electrocardiosignal synchronous acquisition device |
| CN106444667A (en) * | 2016-09-30 | 2017-02-22 | 广西大学 | Intelligent communication control system of Internet of Things |
| CN108309280A (en) * | 2018-02-11 | 2018-07-24 | 许少辉 | The signal intensifier circuit of electrocardiograph |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20161029 |