CN104080258A - Outage emergency lighting circuit and system - Google Patents
Outage emergency lighting circuit and system Download PDFInfo
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- CN104080258A CN104080258A CN201310110087.3A CN201310110087A CN104080258A CN 104080258 A CN104080258 A CN 104080258A CN 201310110087 A CN201310110087 A CN 201310110087A CN 104080258 A CN104080258 A CN 104080258A
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Abstract
The embodiment of the invention discloses an outage emergency lighting circuit which comprises an NPN triode Q1, an NPN triode Q2, a diode D1, a transformer T1, a rectifier bridge BD1, a direct current emergency lighting lamp ZD, a normal lighting light source LAMP1, a battery set BT, a switch S1, a resistor R1, a resistor R2, a resistor R3 and a resistor R4. The grid electrode of the Q1 is connected with one end of the R1 and one end of the R2 respectively. The collector electrode of the Q1 is connected with one end of the R3, one end of the R4 and the Q2 grid electrode respectively. The emitting electrode of the Q1 is connected with a BT negative electrode, one end of the ZD, the other end of the R4, the other end of the R2 and a fourth pin of the BD1 respectively. The collector electrode of the Q2 is connected with the negative electrode of the D1, the other end of the R3 and the positive electrode of the BT respectively. The emitting electrode of the Q2 is connected with the other end of the ZD. The positive electrode of the D1 is connected with the other end of the R1 and a second pin of the BD1. The outage emergency lighting circuit and system have the advantages of being less in components, simple in circuit and low in cost.
Description
Technical field
The present invention relates to a kind of emergency lighting field, relate in particular to a kind of current failure emergency lighting circuit.
Background technology
The inverter of documents power-cut emergency lighting (Chinese Patent Application No. 98100953.0), the inverter power circuit of emergency lighting of the present invention comprises: have battery, oscillating circuit, promote circuit, high-voltage rectifier, rectification constant voltage charging circuit, relay etc., output at high-voltage rectifier is connected to load detecting circuit, during emergency lighting, this circuit by light fixture whether the signal of normal power-up work by DC control circuit, feed back to oscillating circuit, vibration or failure of oscillation are controlled in conducting or cut-off by DC control circuit, thereby realize when non-loaded, automatically stop power supply.
Foregoing circuit device is many, and circuit is more complicated, and cost is higher.
Summary of the invention
Embodiment of the present invention technical problem to be solved is, a kind of current failure emergency lighting circuit is provided.Can reach continuous illumination function after power-off, after city power recovery is normal, emergency light automatic distinguishing.
In order to solve the problems of the technologies described above, the embodiment of the present invention provides a kind of current failure emergency lighting circuit, comprises NPN triode Q1, Q2, diode D1, transformer T1, rectifier bridge BD1, direct current emergency light ZD, normal illumination light source LAMP1, battery pack BT, switch S 1, resistance R 1, R2, R3, R4; Q1 grid is connected with R1 one end and R2 one end respectively; Q1 collector electrode is connected with R3 one end, R4 one end and Q2 grid respectively; Q1 emitter is connected with BT negative pole, ZD one end, the R4 other end, the R2 other end and BD1 the 4th pin respectively; Q2 collector electrode is connected with D1 negative pole, the R3 other end and BT are anodal respectively; Q2 emitter is connected with the ZD other end; D1 positive pole is connected with the R1 other end and BD1 the 2nd pin respectively; T1 the 1st pin is connected with S1 one end and civil power one end respectively; T1 the 2nd pin is connected with LAMP1 one end and the civil power other end respectively; T1 the 3rd pin is connected with BD1 the 3rd pin; The LAMP1 other end is connected with the S1 other end.
Further, also comprise capacitor C 1, C2, C3; C2 one end is connected with Q1 base stage, R1 one end and R2 one end respectively; C3 one end is connected with Q1 collector electrode, R3 one end, R4 one end and Q2 base stage respectively; The positive pole of C1 is connected with D1 positive pole, the R1 other end and BD1 the 2nd pin respectively; The negative pole of C1 is connected with Q1 emitter, BT negative pole, ZD one end, the R4 other end, the C2 other end, the C3 other end, the R2 other end and BD1 the 4th pin respectively.
Further, when civil power is normal, lighting source LAMP1 is luminous for switch S 1 closure; By transformer T1 transformation, rectifier bridge BD1 rectification, obtains battery charging voltage, by D1, battery BT is charged.Now, due to R1, R2 dividing potential drop, Q1 base stage is high level, and Q1 conducting, because Q1 conducting drags down Q2 base potential, makes Q2 cut-off, and direct current electric light ZD does not work.
Further, after civil power power-off, normal illumination light source LAMP1 does not work, and now battery BT electric discharge, because the single-phase conductivity principle of D1 diode is not worked Q1, in cut-off state, cell voltage is by R3, R4 dividing potential drop, and making Q2 base stage is high level, makes Q2 conducting, battery is that direct current electric light ZD powers by Q2, ZD luminous lighting.
Further, described Q1 model is DXT651.
Further, described Q2 model is S8050.
Further, described BD1 model is MBM.
Further, described D1 model is SR39.
Implement the embodiment of the present invention, there is following beneficial effect: the present invention can reach continuous illumination function after power-off, after city power recovery is normal, emergency light automatic distinguishing, and components and parts are few, and circuit is simple, with low cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 be a kind of current failure emergency lighting circuit of the present invention schematic diagram.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1, a kind of current failure emergency lighting circuit, comprises NPN triode Q1, Q2, diode D1, transformer T1, rectifier bridge BD1, direct current emergency light ZD, normal illumination light source LAMP1, battery pack BT, switch S 1, resistance R 1, R2, R3, R4; Q1 grid is connected with R1 one end and R2 one end respectively; Q1 collector electrode is connected with R3 one end, R4 one end and Q2 grid respectively; Q1 emitter is connected with BT negative pole, ZD one end, the R4 other end, the R2 other end and BD1 the 4th pin respectively; Q2 collector electrode is connected with D1 negative pole, the R3 other end and BT are anodal respectively; Q2 emitter is connected with the ZD other end; D1 positive pole is connected with the R1 other end and BD1 the 2nd pin respectively; T1 the 1st pin is connected with S1 one end and civil power one end respectively; T1 the 2nd pin is connected with LAMP1 one end and the civil power other end respectively; T1 the 3rd pin is connected with BD1 the 3rd pin; The LAMP1 other end is connected with the S1 other end.
Also comprise capacitor C 1, C2, C3; C2 one end is connected with Q1 base stage, R1 one end and R2 one end respectively; C3 one end is connected with Q1 collector electrode, R3 one end, R4 one end and Q2 base stage respectively; The positive pole of C1 is connected with D1 positive pole, the R1 other end and BD1 the 2nd pin respectively; The negative pole of C1 is connected with Q1 emitter, BT negative pole, ZD one end, the R4 other end, the C2 other end, the C3 other end, the R2 other end and BD1 the 4th pin respectively.
Described Q1 model is DXT651.
Described Q2 model is S8050.
Described D1 model is SR39.
Described BD1 model is MBM.
When civil power is normal, lighting source LAMP1 is luminous for switch S 1 closure; By transformer T1 transformation, rectifier bridge BD1 rectification, capacitor C 1 filtering, obtains battery charging voltage, by D1, battery BT is charged.Now, due to R1, R2 dividing potential drop, Q1 base stage is high level, and Q1 conducting, because Q1 conducting drags down Q2 base potential, makes Q2 cut-off, and direct current electric light ZD does not work.
After civil power power-off, normal illumination light source LAMP1 does not work, now battery BT electric discharge, because the single-phase conductivity principle of D1 diode is not worked Q1, in cut-off state, cell voltage is by R3, R4 dividing potential drop, making Q2 base stage is high level, make Q2 conducting, battery is that direct current electric light ZD powers by Q2, ZD luminous lighting.Capacitor C 2, C3, for preventing Q1, the Q2 phenomenon that misleads, play a protective role.
The present invention can reach continuous illumination function after power-off, after city power recovery is normal, and emergency light automatic distinguishing, and components and parts are few, and circuit is simple, with low cost.
One of ordinary skill in the art will appreciate that all or part of flow process realizing in above-described embodiment method, to come the hardware that instruction is relevant to complete by computer program, described program can be stored in a computer read/write memory medium, this program, when carrying out, can comprise as the flow process of the embodiment of above-mentioned each side method.Wherein, described storage medium can be magnetic disc, CD, read-only store-memory body (Read-Only Memory, ROM) or random store-memory body (Random Access Memory, RAM) etc.
Above disclosed is only preferred embodiment of the present invention, certainly can not limit with this interest field of the present invention, and the equivalent variations of therefore doing according to the claims in the present invention, still belongs to the scope that the present invention is contained.
Claims (8)
1. a current failure emergency lighting circuit, is characterized in that, comprises NPN triode Q1, Q2, diode D1, transformer T1, rectifier bridge BD1, direct current emergency light ZD, normal illumination light source LAMP1, battery pack BT, switch S 1, resistance R 1, R2, R3, R4; Q1 grid is connected with R1 one end and R2 one end respectively; Q1 collector electrode is connected with R3 one end, R4 one end and Q2 grid respectively; Q1 emitter is connected with BT negative pole, ZD one end, the R4 other end, the R2 other end and BD1 the 4th pin respectively; Q2 collector electrode is connected with D1 negative pole, the R3 other end and BT are anodal respectively; Q2 emitter is connected with the ZD other end; D1 positive pole is connected with the R1 other end and BD1 the 2nd pin respectively; T1 the 1st pin is connected with S1 one end and civil power one end respectively; T1 the 2nd pin is connected with LAMP1 one end and the civil power other end respectively; T1 the 3rd pin is connected with BD1 the 3rd pin; The LAMP1 other end is connected with the S1 other end.
2. current failure emergency lighting circuit according to claim 1, is characterized in that, also comprises capacitor C 1, C2, C3; C2 one end is connected with Q1 base stage, R1 one end and R2 one end respectively; C3 one end is connected with Q1 collector electrode, R3 one end, R4 one end and Q2 base stage respectively; The positive pole of C1 is connected with D1 positive pole, the R1 other end and BD1 the 2nd pin respectively; The negative pole of C1 is connected with Q1 emitter, BT negative pole, ZD one end, the R4 other end, the C2 other end, the C3 other end, the R2 other end and BD1 the 4th pin respectively.
3. current failure emergency lighting circuit according to claim 1, is characterized in that, when civil power is normal, lighting source LAMP1 is luminous for switch S 1 closure; By transformer T1 transformation, rectifier bridge BD1 rectification, obtains battery charging voltage, by D1, battery BT is charged.Now, due to R1, R2 dividing potential drop, Q1 base stage is high level, and Q1 conducting, because Q1 conducting drags down Q2 base potential, makes Q2 cut-off, and direct current electric light ZD does not work.
4. current failure emergency lighting circuit according to claim 1, it is characterized in that, after civil power power-off, normal illumination light source LAMP1 does not work, now battery BT electric discharge, because the single-phase conductivity principle of D1 diode is not worked Q1, in cut-off state, cell voltage is by R3, R4 dividing potential drop, making Q2 base stage is high level, make Q2 conducting, battery is that direct current electric light ZD powers by Q2, ZD luminous lighting.
5. current failure emergency lighting circuit according to claim 1, is characterized in that, described Q1 model is DXT651.
6. current failure emergency lighting circuit according to claim 1, is characterized in that, described Q2 model is S8050.
7. current failure emergency lighting circuit according to claim 1, is characterized in that, described BD1 model is MBM.
8. current failure emergency lighting circuit according to claim 1, is characterized in that, described D1 model is SR39.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310110087.3A CN104080258A (en) | 2013-03-29 | 2013-03-29 | Outage emergency lighting circuit and system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310110087.3A CN104080258A (en) | 2013-03-29 | 2013-03-29 | Outage emergency lighting circuit and system |
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| CN104080258A true CN104080258A (en) | 2014-10-01 |
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| CN201310110087.3A Pending CN104080258A (en) | 2013-03-29 | 2013-03-29 | Outage emergency lighting circuit and system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105722292A (en) * | 2016-03-23 | 2016-06-29 | 成都锐奕信息技术有限公司 | Automatic emergency lighting device |
| CN107565684A (en) * | 2017-09-01 | 2018-01-09 | 上海芯荃微电子科技有限公司 | A kind of exchange detection of integrated emergency lighting and power control system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10106762A (en) * | 1996-09-30 | 1998-04-24 | Toshiba Lighting & Technol Corp | Emergency light lighting circuit, emergency light lighting device, and emergency light illumination device |
| CN1759517A (en) * | 2003-03-10 | 2006-04-12 | 奥地利西门子股份有限公司 | Emergency lighting |
| CN101806423A (en) * | 2009-10-27 | 2010-08-18 | 周宇超 | Emergency lamp and installation method thereof |
-
2013
- 2013-03-29 CN CN201310110087.3A patent/CN104080258A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10106762A (en) * | 1996-09-30 | 1998-04-24 | Toshiba Lighting & Technol Corp | Emergency light lighting circuit, emergency light lighting device, and emergency light illumination device |
| CN1759517A (en) * | 2003-03-10 | 2006-04-12 | 奥地利西门子股份有限公司 | Emergency lighting |
| CN101806423A (en) * | 2009-10-27 | 2010-08-18 | 周宇超 | Emergency lamp and installation method thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105722292A (en) * | 2016-03-23 | 2016-06-29 | 成都锐奕信息技术有限公司 | Automatic emergency lighting device |
| CN107565684A (en) * | 2017-09-01 | 2018-01-09 | 上海芯荃微电子科技有限公司 | A kind of exchange detection of integrated emergency lighting and power control system |
| CN107565684B (en) * | 2017-09-01 | 2021-02-23 | 上海芯荃微电子科技有限公司 | Integrated AC detection and power control system for emergency lighting |
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Application publication date: 20141001 |