CN102565511B - Ultrahigh voltage signal acquisition circuit - Google Patents
Ultrahigh voltage signal acquisition circuit Download PDFInfo
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- CN102565511B CN102565511B CN201210022245.5A CN201210022245A CN102565511B CN 102565511 B CN102565511 B CN 102565511B CN 201210022245 A CN201210022245 A CN 201210022245A CN 102565511 B CN102565511 B CN 102565511B
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Abstract
The invention discloses an ultrahigh voltage signal acquisition circuit which comprises a detecting circuit, a feedback input voltage control circuit and a secondary voltage amplification circuit, wherein the detecting circuit is formed by a fourth triode Q304 and a voltage sampling resistor R1; the feedback input voltage control circuit is formed by a first triode Q301 and a resistor R303; and the secondary voltage amplification circuit is formed by a second triode Q302 and a third triode Q30. According to the ultrahigh voltage signal acquisition circuit provided by the invention, when a high voltage signal receiving end receives an abnormal signal, the abnormal signal is sent to a central processor by an output end J3-2 of the secondary voltage amplification circuit, the central processor sends a command and an output signal of a control end J3-3 is 0 or 1, so that the voltage of a switching end J404 of a high voltage generator is controlled into 0 and 12V by the first triode Q301 to implement high voltage power failure and continuous working, and thus, the damage to devices is avoided. Moreover, the ultrahigh voltage signal acquisition circuit has simple structure and is easy to implement.
Description
Technical field
The present invention relates to a kind of signal acquisition circuit, particularly relate to a kind of ultrahigh voltage signal acquisition circuit for negative ion generating device.
Background technology
Negative aeroion, also known as " air vitamin ", namely plays a part and the negative ion of reducing action, has very large antioxidant effect and reducing power in health, and it is the indispensable a kind of material of human health life as sunlight, air.Scientific research shows: the aerial content of negative ion is the key factor determining air quality quality, in air containing appropriate negative ion can not only dedusting efficiently, sterilizing, purify air, the oxygen molecule in air can also be activated simultaneously and be formed and take negative oxygen ion.
Occurring in nature negative ion is ubiquitous.The spontaneous phenomenon such as photosynthesis, waterfall flow shock as the lightning that thunders, plant can produce a large amount of negative ions, and Here it is, and people can feel the reason place that air is pure and fresh especially in thunderstorm weather, forest, by waterfall.
Low-voltage is risen to negative direct current high voltage by booster circuit by anion generator, most advanced and sophisticated high direct voltage is utilized to produce high corona, release a large amount of electronics e-at high speed, and electronics also cannot be present in (electron lifetime of existence only has ns level) in air for a long time, can be caught by the oxygen molecule (O2) in air at once.Form negative ion, time its principle of work and nature " thunder, lightning " to produce the phenomenon of negative ion consistent.The method utilizing UHV (ultra-high voltage) (3000V ~ 10000V) to obtain negative ion is the method that current air purifier is conventional.But extremely all cannot shut down appears in existing anion generator output terminal, thus causes component damage, and serious is on fire by detonator circuit, causes catastrophic effect.Therefore, the ultrahigh voltage signal acquisition circuit being provided for negative ion generating device is necessary.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of ultrahigh voltage signal acquisition circuit, can detect the abnormal signal that high-pressure side occurs in time, avoid causing component damage, and structure is simple, easy to implement.
The present invention solves the problems of the technologies described above the technical scheme adopted to be to provide a kind of ultrahigh voltage signal acquisition circuit, comprising:
Detecting circuit, comprise the 4th triode and voltage sample resistance R1, one end of described voltage sample resistance R1 is connected with the base stage of the 4th triode, and the other end is high-voltage signal receiving end, is parallel with stabilivolt d1, electric capacity C1, resistance R307 between the base stage of described 4th triode and emitter;
Feed back input voltage control circuit, comprise the first triode and resistance R303, one end of described resistance R303 is connected with the base stage of the first triode, and the other end is the switch terminals J404 controlling high pressure generator, is connected to resistance R302 between the base stage of described first triode and collector;
Secondary voltage amplifying circuit, comprise the second triode and the 3rd triode, the grounded emitter of described second triode, collector is connected with central processing unit by output terminal J3-2, and base stage is connected with the collector of the 3rd triode by resistance R305; The base stage of described 3rd triode is connected with electric capacity C2 with the collector of the 4th triode by resistance R308, and collector is connected with the collector of the first triode by R304;
When high-voltage signal receiving end receives abnormal signal, central processing unit is given by the output terminal J3-2 of second amplifying circuit, instruction is sent by central processing unit, the output signal of control end J3-3 is made to be 0 and 1, thus to control the switch terminals J404 voltage of high pressure generator by the first triode be 0 and 12V, realize high pressure power-off and work on.
Above-mentioned ultrahigh voltage signal acquisition circuit, wherein, is connected to electric capacity C301 and forms low frequency filter between the emitter of described 3rd triode and the emitter of the 4th triode.
Above-mentioned ultrahigh voltage signal acquisition circuit, wherein, the resistance of described voltage sample resistance R1 is 20K ~ 20M ohm.
The present invention contrasts prior art following beneficial effect: ultrahigh voltage signal acquisition circuit provided by the invention, the abnormal signal of high-pressure side appearance is detected in real time by detecting circuit, after central processing unit process, realize high pressure power-off by feed back input voltage control circuit and work on, thus avoid causing component damage, and structure is simple, easy to implement.
Accompanying drawing explanation
Fig. 1 is ultrahigh voltage signal acquisition circuit schematic diagram of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is ultrahigh voltage signal acquisition circuit structural representation of the present invention.
Refer to Fig. 1, ultrahigh voltage signal acquisition circuit provided by the invention, comprising:
Detecting circuit, comprise the 4th triode Q304 and voltage sample resistance R1, one end of described voltage sample resistance R1 is connected with the base stage of the 4th triode Q304, the other end is high-voltage signal receiving end, is parallel with stabilivolt d1, electric capacity C1, resistance R307 between the base stage of described 4th triode Q304 and emitter;
Feed back input voltage control circuit, comprise the first triode Q301 and resistance R303, one end of described resistance R303 is connected with the base stage of the first triode Q301, the other end is the switch terminals J404 controlling high pressure generator, is connected to resistance R302 between the base stage of described first triode Q301 and collector;
Secondary voltage amplifying circuit, comprise the second triode Q302 and the 3rd triode Q303, the grounded emitter of described second triode Q302, collector is connected with central processing unit by output terminal J3-2, and base stage is connected with the collector of the 3rd triode Q303 by resistance R305; The base stage of described 3rd triode Q303 is connected with electric capacity C2 with the collector of the 4th triode Q304 by resistance R308, and collector is connected with the collector of the first triode Q301 by R304;
When high-voltage signal receiving end receives abnormal signal, central processing unit is given by the output terminal J3-2 of second amplifying circuit, instruction is sent by central processing unit, the output signal of control end J3-3 is made to be 0 and 1, thus to control the switch terminals J404 voltage of high pressure generator by the first triode Q301 be 0 and 12V, realize high pressure power-off and work on.J3-1 is earth terminal, and J3-4 is power supply 12V.
Ultrahigh voltage signal acquisition circuit provided by the invention, can be connected to electric capacity DEG C 301 formation low frequency filters further, play the effect of stabilized supply voltage between the emitter of the 3rd triode Q303 and the emitter of the 4th triode Q304.The resistance of voltage sample resistance R1 is preferably 20K ~ 20M ohm, concrete numerical basis voltage levels and determining.
Although the present invention discloses as above with preferred embodiment; so itself and be not used to limit the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; when doing a little amendment and perfect, therefore protection scope of the present invention is when being as the criterion of defining with claims.
Claims (3)
1. a ultrahigh voltage signal acquisition circuit, is characterized in that, comprising:
Detecting circuit, comprise the 4th triode (Q304) and voltage sample resistance R1, one end of described voltage sample resistance R1 is connected with the base stage of the 4th triode (Q304), the other end is high-voltage signal receiving end, is parallel with stabilivolt d1, electric capacity C1, resistance R307 between the base stage of described 4th triode (Q304) and emitter;
Feed back input voltage control circuit, comprise the first triode (Q301) and resistance R303, one end of described resistance R303 is connected with the base stage of the first triode (Q301), the other end is the switch terminals J404 controlling high pressure generator, is connected to resistance R302 between the base stage of described first triode (Q301) and collector;
Secondary voltage amplifying circuit, comprise the second triode (Q302) and the 3rd triode (Q303), the grounded emitter of described second triode (Q302), collector is connected with central processing unit by output terminal J3-2, and base stage is connected with the collector of the 3rd triode (Q303) by resistance R305; The base stage of described 3rd triode (Q303) is connected with electric capacity C2 with the collector of the 4th triode (Q304) by resistance R308, and collector is connected with the collector of the first triode (Q301) by R304;
When high-voltage signal receiving end receives abnormal signal, central processing unit is given by the output terminal J3-2 of second amplifying circuit, instruction is sent by central processing unit, the output signal of control end J3-3 is made to be 0 and 1, thus be 0 and 12V by the switch terminals J404 voltage that the first triode (Q301) controls high pressure generator, realize high pressure power-off and work on.
2. ultrahigh voltage signal acquisition circuit according to claim 1, is characterized in that, is connected to electric capacity C301 and forms low frequency filter between the emitter of described 3rd triode (Q303) and the emitter of the 4th triode (Q304).
3. ultrahigh voltage signal acquisition circuit according to claim 1 and 2, is characterized in that, the resistance of described voltage sample resistance R1 is 20K ~ 20M ohm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210022245.5A CN102565511B (en) | 2012-02-01 | 2012-02-01 | Ultrahigh voltage signal acquisition circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210022245.5A CN102565511B (en) | 2012-02-01 | 2012-02-01 | Ultrahigh voltage signal acquisition circuit |
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| CN102565511A CN102565511A (en) | 2012-07-11 |
| CN102565511B true CN102565511B (en) | 2015-06-17 |
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| CN201210022245.5A Active CN102565511B (en) | 2012-02-01 | 2012-02-01 | Ultrahigh voltage signal acquisition circuit |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87205848U (en) * | 1987-03-31 | 1988-02-03 | 张义勇 | Induction electricity meter |
| CN2036277U (en) * | 1988-03-29 | 1989-04-19 | 昆明钢铁公司 | Non-contact multipurpose electronic electricity measurer |
| JPH10160764A (en) * | 1996-11-27 | 1998-06-19 | Yokogawa Electric Corp | Input circuit for insulating-voltage measuring apparatus |
| JP3641375B2 (en) * | 1998-11-24 | 2005-04-20 | 日本電気エンジニアリング株式会社 | Power supply voltage monitoring circuit |
| CN102291908A (en) * | 2011-06-17 | 2011-12-21 | 德清县伊科爱能电子科技有限公司 | Electronic ballast capable of testing service life of light tube |
-
2012
- 2012-02-01 CN CN201210022245.5A patent/CN102565511B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87205848U (en) * | 1987-03-31 | 1988-02-03 | 张义勇 | Induction electricity meter |
| CN2036277U (en) * | 1988-03-29 | 1989-04-19 | 昆明钢铁公司 | Non-contact multipurpose electronic electricity measurer |
| JPH10160764A (en) * | 1996-11-27 | 1998-06-19 | Yokogawa Electric Corp | Input circuit for insulating-voltage measuring apparatus |
| JP3641375B2 (en) * | 1998-11-24 | 2005-04-20 | 日本電気エンジニアリング株式会社 | Power supply voltage monitoring circuit |
| CN102291908A (en) * | 2011-06-17 | 2011-12-21 | 德清县伊科爱能电子科技有限公司 | Electronic ballast capable of testing service life of light tube |
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| Publication number | Publication date |
|---|---|
| CN102565511A (en) | 2012-07-11 |
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Effective date of registration: 20171109 Address after: Tongxiang City, Jiaxing City, Zhejiang province 314504 Longxiang Street Dongsheng Road No. 418 Building 1 Patentee after: Zhejiang Narva Intelligent Technology Co Ltd Address before: 201506, 768, 9 building 6558, Ting Wei Road, Shanghai, Jinshan District Patentee before: Shanghai Yu Feng electrical equipment Development Co., Ltd |
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Addressee: Shanghai Yu Feng electrical equipment Development Co., Ltd Document name: Notification of Passing Examination on Formalities |