CN205491335U - Self -starting power failure backup circuit - Google Patents
Self -starting power failure backup circuit Download PDFInfo
- Publication number
- CN205491335U CN205491335U CN201620225067.XU CN201620225067U CN205491335U CN 205491335 U CN205491335 U CN 205491335U CN 201620225067 U CN201620225067 U CN 201620225067U CN 205491335 U CN205491335 U CN 205491335U
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- CN
- China
- Prior art keywords
- resistance
- connects
- electric capacity
- npn audion
- diode
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
Abstract
The utility model discloses a self -starting power failure backup circuit, the transformer be used for receiving the commercial power elementarily, rectifier diode's positive pole is connected to secondary one end of transformer, the one end of first electric capacity is connected to secondary other end of transformer, the projecting pole of a NPN triode, the negative pole of dry battery and the one end of light, the other end of first electric capacity is connected to rectifier diode's negative pole, the one end of first resistance and prevent the positive pole of anti - diode, the base of a NPN triode is connected to the other end of first resistance, prevent the negative pole linked switch's of anti - diode one end, the one end of second resistance and the collecting electrode of the 2nd NPN triode, the collecting electrode of a NPN triode and the other end of second resistance are connected to the base of the 2nd NPN triode, the other end of light is connected to the projecting pole of the 2nd NPN triode, the positive pole of dry battery is connected to the other end of switch. The utility model provides a self -starting power failure backup circuit can play outage automatic illumination's effect.
Description
Technical field
This utility model relates to lighting technical field, is specifically related to a kind of self-starting power failure stand-by circuit.
Background technology
Suddenly power-off may damage electrical equipment, and directly affects the orthobiosis of people.Power-off, i.e. stops electric power transmission, makes electrical equipment cannot obtain external power source.Including artificial power-off, as maintenance circuit, use electricity in off-peak hours, power cuts to limit consumption, owing electricity charges etc.；Protection power-off, as anti-lightning strike, prevent electrical equipment overload etc.；Accident power-off, such as artificial destruction, vile weather, short circuit, unexpected open circuit etc..There is provided a kind of self-starting power failure stand-by circuit to from the point of view of each family be need and suitable, even if because living in metropolitan premises, also can be frequently encountered by due to former power-off thus resulted in such as arrearage, the needs especially of power supply department, chance failure and indoor fuse failures.
Utility model content
To be solved in the utility model be powered off after the problem that cannot illuminate.
This utility model is achieved through the following technical solutions:
A kind of self-starting power failure stand-by circuit, including transformator, commutation diode, counnter attack diode, the first electric capacity, the first resistance, the second resistance, a NPN audion, the 2nd NPN audion, switch, aneroid battery and illuminating lamp；nullThe primary of described transformator is used for receiving civil power，Secondary one end of described transformator connects the anode of described commutation diode，The secondary other end of described transformator connects one end of described first electric capacity、The emitter stage of a described NPN audion、The negative pole of described aneroid battery and one end of described illuminating lamp，The negative electrode of described commutation diode connects the other end of described first electric capacity、One end of described first resistance and the anode of described counnter attack diode，The other end of described first resistance connects the base stage of a described NPN audion，The negative electrode of described counnter attack diode connects one end of described switch、One end of described second resistance and the colelctor electrode of described 2nd NPN audion，The base stage of described 2nd NPN audion connects colelctor electrode and the other end of described second resistance of a described NPN audion，The emitter stage of described 2nd NPN audion connects the other end of described illuminating lamp，The other end of described switch connects the positive pole of described aneroid battery.
Optionally, described self-starting power failure stand-by circuit also includes the 3rd resistance and light emitting diode；One end of described 3rd resistance connects the negative electrode of described commutation diode, and the other end of described 3rd resistance connects the anode of described light emitting diode, and the negative electrode of described light emitting diode connects the secondary other end of described transformator.By arranging described 3rd resistance and described light emitting diode, may indicate that Alternating Current Power Supply is normal.
Optionally, described self-starting power failure stand-by circuit also includes the second electric capacity and the 4th resistance, and primary one end of described transformator receives civil power by described second electric capacity；One end of described second electric capacity connects one end of described 4th resistance and is suitable to receive civil power, and the other end of described second electric capacity connects the other end of described 4th resistance and primary one end of described transformator.By arranging described second electric capacity and described 4th resistance, can be filtered electric main processing.
This utility model compared with prior art, has such advantages as and beneficial effect:
The self-starting power failure stand-by circuit that this utility model provides, when there being electric main, electric main is by transformer pressure-reducing, rectifies and the first capacitor filtering, the DC voltage obtained is added to the base stage of a NPN audion by the first resistance, make a NPN triode ON, the base voltage of the 2nd NPN audion is dragged down, and control to switch off, making the 2nd NPN audion be in cut-off state, illuminating lamp does not works；When alternating current power-off, controlling switch conduction, dry cell power supply, make the 2nd NPN triode ON, and the voltage that counnter attack diode prevents aneroid battery from providing pours in down a chimney, illuminating lamp is luminous, plays the effect of power failure automatic illuminating.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by this utility model embodiment, constitutes the part of the application, is not intended that the restriction to this utility model embodiment.In the accompanying drawings:
Fig. 1 is the circuit diagram of the self-starting power failure stand-by circuit of a kind of embodiment of this utility model；
Fig. 2 is the circuit diagram of the self-starting power failure stand-by circuit of this utility model another kind embodiment；
Fig. 3 is the circuit diagram of the self-starting power failure stand-by circuit of another embodiment of this utility model.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with embodiment and accompanying drawing, the utility model is described in further detail, exemplary embodiment of the present utility model and explanation thereof are only used for explaining this utility model, are not intended as restriction of the present utility model.
Embodiment 1
Fig. 1 is the circuit diagram of the self-starting power failure stand-by circuit of a kind of embodiment of this utility model, and described self-starting power failure stand-by circuit includes transformator T1, commutation diode D1, counnter attack diode D2, the first electric capacity C1, the first resistance R1, the second resistance R2, a NPN audion Q1, the 2nd NPN audion Q2, switch K1, aneroid battery V1 and illuminating lamp L1.
nullSpecifically，The primary of described transformator T1 is used for receiving civil power，Secondary one end of described transformator T1 connects the anode of described commutation diode D1，The secondary other end of described transformator T1 connects one end of described first electric capacity C1、The emitter stage of a described NPN audion Q1、The negative pole of described aneroid battery V1 and one end of described illuminating lamp L1，The negative electrode of described commutation diode D1 connects the other end of described first electric capacity C1、One end of described first resistance R1 and the anode of described counnter attack diode D2，The other end of described first resistance R1 connects the base stage of a described NPN audion Q1，The negative electrode of described counnter attack diode D2 connects one end of described switch K1、One end of described second resistance R2 and the colelctor electrode of described 2nd NPN audion Q2，The base stage of described 2nd NPN audion Q2 connects colelctor electrode and the other end of described second resistance R2 of a described NPN audion Q1，The emitter stage of described 2nd NPN audion Q2 connects the other end of described illuminating lamp L1，The other end of described switch K1 connects the positive pole of described aneroid battery V1.Described switch K1 is off when electric main is powered, and in the conduction state when having a power failure, it can be mechanical switch, it is also possible to for electrical switch, can be configured according to practical situation.
Hereinafter the operation principle of the self-starting power failure stand-by circuit of the present embodiment is illustrated:
When there being 220V electric main, 220V electric main is filtered by described transformator T1 blood pressure lowering, described commutation diode D1 rectification and described first electric capacity C1, the DC voltage obtained is added to the base stage of a NPN audion Q1 by described first resistance R1, make a described NPN audion Q1 conducting, the base voltage of described 2nd NPN audion Q2 is dragged down, owing to described switch K1 disconnects, described 2nd NPN audion Q2 is in cut-off state, and described illuminating lamp L1 does not works；When 220V alternating current power-off, described switch K1 turns on, powered by described aneroid battery V1, make described 2nd NPN audion Q2 conducting, and the voltage preventing described aneroid battery V1 from providing due to described counnter attack diode D2 pours in down a chimney, a described NPN audion Q1 does not works, and described illuminating lamp L1 is luminous, plays the effect of power failure automatic illuminating.
Embodiment 2
Fig. 2 is the circuit diagram of the self-starting power failure stand-by circuit of this utility model another kind embodiment, and the present embodiment is with the difference of embodiment 1: also include the 3rd resistance R3 and light emitting diode D3.One end of described 3rd resistance R3 connects the negative electrode of commutation diode D1, and the other end of described 3rd resistance R3 connects the anode of described light emitting diode D3, the secondary other end of the negative electrode connection transformer T1 of described light emitting diode D3.When there being Alternating Current Power Supply, described light emitting diode D3 is luminous.Therefore, by arranging described 3rd resistance R3 and described light emitting diode D3, may indicate that Alternating Current Power Supply is normal.
Embodiment 3
Fig. 3 is the circuit diagram of the self-starting power failure stand-by circuit of another embodiment of this utility model, the present embodiment is with the difference of embodiment 1: also include the second electric capacity C2 and the 4th resistance R4, and primary one end of transformator T1 receives civil power by described second electric capacity C2.One end of described second electric capacity C2 connects one end of described 4th resistance R4 and is suitable to receive civil power, and the other end of described second electric capacity C2 connects the other end of described 4th resistance R4 and primary one end of described transformator T1.By arranging described second electric capacity C2 and described 4th resistance R4, can be filtered electric main processing.
Above-described detailed description of the invention; the purpose of this utility model, technical scheme and beneficial effect are further described; it is it should be understood that; the foregoing is only detailed description of the invention of the present utility model; it is not used to limit protection domain of the present utility model; all within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. done, within should be included in protection domain of the present utility model.
Claims (3)
1. a self-starting power failure stand-by circuit, it is characterised in that include transformator, commutation diode, counnter attack diode, the first electric capacity, the first resistance, the second resistance, a NPN audion, the 2nd NPN audion, switch, aneroid battery and illuminating lamp；
nullThe primary of described transformator is used for receiving civil power，Secondary one end of described transformator connects the anode of described commutation diode，The secondary other end of described transformator connects one end of described first electric capacity、The emitter stage of a described NPN audion、The negative pole of described aneroid battery and one end of described illuminating lamp，The negative electrode of described commutation diode connects the other end of described first electric capacity、One end of described first resistance and the anode of described counnter attack diode，The other end of described first resistance connects the base stage of a described NPN audion，The negative electrode of described counnter attack diode connects one end of described switch、One end of described second resistance and the colelctor electrode of described 2nd NPN audion，The base stage of described 2nd NPN audion connects colelctor electrode and the other end of described second resistance of a described NPN audion，The emitter stage of described 2nd NPN audion connects the other end of described illuminating lamp，The other end of described switch connects the positive pole of described aneroid battery.
Self-starting power failure stand-by circuit the most according to claim 1, it is characterised in that also include the 3rd resistance and light emitting diode；
One end of described 3rd resistance connects the negative electrode of described commutation diode, and the other end of described 3rd resistance connects the anode of described light emitting diode, and the negative electrode of described light emitting diode connects the secondary other end of described transformator.
Self-starting power failure stand-by circuit the most according to claim 1, it is characterised in that also include the second electric capacity and the 4th resistance, primary one end of described transformator receives civil power by described second electric capacity；
One end of described second electric capacity connects one end of described 4th resistance and is suitable to receive civil power, and the other end of described second electric capacity connects the other end of described 4th resistance and primary one end of described transformator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620225067.XU CN205491335U (en) | 2016-03-23 | 2016-03-23 | Self -starting power failure backup circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620225067.XU CN205491335U (en) | 2016-03-23 | 2016-03-23 | Self -starting power failure backup circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205491335U true CN205491335U (en) | 2016-08-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620225067.XU Expired - Fee Related CN205491335U (en) | 2016-03-23 | 2016-03-23 | Self -starting power failure backup circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205491335U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245748A (en) * | 2018-10-16 | 2019-01-18 | 中国石油大学(华东) | A kind of power-off self-start circuit |
| CN109995353A (en) * | 2019-05-16 | 2019-07-09 | 南京邮电大学 | A kind of stable low-power consumption power-off self-start circuit |
-
2016
- 2016-03-23 CN CN201620225067.XU patent/CN205491335U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109245748A (en) * | 2018-10-16 | 2019-01-18 | 中国石油大学(华东) | A kind of power-off self-start circuit |
| CN109995353A (en) * | 2019-05-16 | 2019-07-09 | 南京邮电大学 | A kind of stable low-power consumption power-off self-start circuit |
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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: 20160817 Termination date: 20170323 |