CN206181479U - Over -current protection buffering formula emergency lighting circuit - Google Patents
Over -current protection buffering formula emergency lighting circuit Download PDFInfo
- Publication number
- CN206181479U CN206181479U CN201621108103.0U CN201621108103U CN206181479U CN 206181479 U CN206181479 U CN 206181479U CN 201621108103 U CN201621108103 U CN 201621108103U CN 206181479 U CN206181479 U CN 206181479U
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- audion
- electric capacity
- resistance
- diode
- pole
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Abstract
The utility model discloses an over -current protection buffering formula emergency lighting circuit, its characterized in that: mainly by diode rectifier U, operational amplifier P, triode VT1, triode VT2, triode VT3, battery GB, emergency light BL, switch KA, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, slide rheostat RP, zener diode D1, diode D2 and diode D3 constitute. The utility model discloses a not only simple structure and cost are lower, still are convenient for maintain, the utility model has the advantages of reasonable design, can charge to battery GB when mains supply normal use, then the power supply of accessible battery GB when mains supply breaks off to make emergency light BL automatic lighting, can carry out emergency lighting, be fit for wide use.
Description
Technical field
This utility model is related to a kind of overcurrent protection buffer-type emergency light circuit.
Background technology
Emergency light can be in normal power source power-off or because the device being illuminated after fire-fighting accident power-off, although emergency light is not
Often use, but be requisite in the building of modernization.At present domestic power supply is more sufficient, emergency light using less,
Therefore need periodically to carry out Inspection and maintenance to emergency light, to ensure that emergency light can be used normally.Currently used for the control of emergency light
Circuit structure processed is more complicated, relatively more using electronic devices and components so that control circuit is relatively costly, while being also inconvenient for safeguarding
Maintenance.
Utility model content
The purpose of this utility model is to provide a kind of overcurrent protection buffer-type emergency light circuit, is answered with expecting to simplify
The structure of anxious circuit for lamp, in order to Maintenance and Repair, while can also reduces cost.
This utility model is achieved through the following technical solutions：
A kind of overcurrent protection buffer-type emergency light circuit, mainly by diode rectifier U, operational amplifier P, audion
VT1, audion VT2, audion VT3, accumulator GB, positive pole collectively constitutes power supply with an input of diode rectifier U
The electric capacity C1 that input, negative pole are connected with another input of diode rectifier U, the resistance being in parallel with electric capacity C1
R1, positive pole is connected with the cathode output end of diode rectifier U, negative pole is connected with the cathode output end of diode rectifier U
The electric capacity C2 for connecing, the Zener diode D1 that P poles are connected with the negative pole of electric capacity C2, N poles are connected with the positive pole of electric capacity C2, one end
It is connected with the positive pole of electric capacity C2, the other end is connected with the outfan of operational amplifier P, control end and operational amplifier P
The slide rheostat RP that positive input terminal is connected, is serially connected between the negative input end of the negative pole of electric capacity C2 and operational amplifier P
Resistance R2, positive pole is connected Jing after resistance R3 with the negative input end of operational amplifier P, the outfan of negative pole and operational amplifier P
The electric capacity C3 being connected, positive pole is connected Jing after resistance R4 with the colelctor electrode of audion VT1, negative pole is connected with the negative pole of electric capacity C2
The electric capacity C4 for connecing, the diode D2 that P poles are connected with the colelctor electrode of audion VT1, N poles are connected with the positive pole of electric capacity C4, P poles
Be connected with the base stage of audion VT2 Jing after resistance R5, two that N poles are connected Jing after resistance R6 with the colelctor electrode of audion VT2
Pole pipe D3, the emergency light BL being serially connected between the emitter stage of audion VT3 and the negative pole of accumulator GB, and it is serially connected in audion
Switch KA compositions between the colelctor electrode of VT3 and the positive pole of accumulator GB；The P poles of the diode D3 respectively with operational amplifier
The outfan of P is connected with the base stage of audion VT1, and its N pole is connected with the colelctor electrode of audion VT3；The audion VT2
Colelctor electrode be connected with the base stage of audion VT3, its emitter stage respectively with the negative pole and the emitter stage of audion VT1 of electric capacity C2
And the negative pole of accumulator GB is connected.
Further, the audion VT1 is 3AX51 audions, and audion VT2 is 3DG6 audions, and audion VT3 is
3DD50 audions.
Further, the diode rectifier U is the diode rectifier of four 1N4001 commutation diodes compositions.
In order to be better achieved this utility model, the Zener diode D1 is 2CW105 Zener diodes, diode D2
1N4001 commutation diodes are with diode D3.
In order to ensure effect, the operational amplifier P is LM324 type operational amplifiers.
This utility model compared with prior art, with advantages below and beneficial effect：
(1) it is of the present utility model to be not only simple in structure and cost is relatively low, it is also convenient for safeguarding.This utility model structure design is closed
Reason, can charge when power supply is normally used to accumulator GB, and then can be powered by accumulator GB when power supply disconnects, so that
Obtain emergency light BL to light automatically, you can carry out emergency lighting.
(2) operational amplifier P of the present utility model can group with slide rheostat RP, resistance R2, resistance R3 and electric capacity C3
Into a circuit overcurrent protection, the electronic component that electric current can be prevented excessive and damaged in circuit, the circuit overcurrent protection is also
Default current protection value can be adjusted by slide rheostat RP.
(3) the audion VT1 in this utility model can also constitute a buffering with resistance R4, electric capacity C4 and diode D2
Circuit, can be adjusted or buffer to the voltage and current waveform that electronic component when circuit turn-on and shut-off is born, and reduce electricity
Pressure and impact of the electric current to electronic component, and the waveform of voltage and current can be made to keep steady statue, it is possible to decrease circuit is in conducting
With loss to voltage and current during shut-off, so as to the electronic component in further protection circuit, while this can also be improved
The utilization rate of utility model.
Description of the drawings
Fig. 1 is overall structure diagram of the present utility model.
Specific embodiment
This utility model is described in further detail with reference to embodiment, but embodiment of the present utility model is not
It is limited to this.
Embodiment
As shown in figure 1, overcurrent protection buffer-type emergency light circuit of the present utility model, mainly by diode rectifier U,
Operational amplifier P, audion VT1, audion VT2, audion VT3, accumulator GB, emergency light BL switchs KA, electric capacity C1, electricity
Hold C2, electric capacity C3, electric capacity C4, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, slide rheostat RP, surely
Pressure diode D1, diode D2 and diode D3 composition.Wherein, accumulator GB uses 6V accumulator, emergency light
BL then uses the illuminating lamp of 6V, 0.3A.
During connection, the positive pole of the electric capacity C1 collectively constitutes power input with an input of diode rectifier U,
Its negative pole is connected with another input of diode rectifier U, and the power supply that this utility model is used is 220V civil powers.It is described
Resistance R1 is in parallel with electric capacity C1.The positive pole of the electric capacity C2 is connected with the cathode output end of diode rectifier U, its negative pole
It is connected with the cathode output end of diode rectifier U.The P poles of the Zener diode D1 are connected with the negative pole of electric capacity C2,
Its N pole is connected with the positive pole of electric capacity C2.One end of the slide rheostat RP is connected with the positive pole of electric capacity C2, its other end
It is connected with the outfan of operational amplifier P, its control end is connected with the positive input terminal of operational amplifier P.The resistance R2
It is serially connected between the negative input end of the negative pole of electric capacity C2 and operational amplifier P.The positive pole of the electric capacity C3 Jing after resistance R3 with fortune
The negative input end for calculating amplifier P is connected, and its negative pole is connected with the outfan of operational amplifier P.
The positive pole of the electric capacity C4 is connected Jing after resistance R4 with the colelctor electrode of audion VT1, and its negative pole is with electric capacity C2's
Negative pole is connected.The P poles of the diode D2 are connected with the colelctor electrode of audion VT1, and its N pole is connected with the positive pole of electric capacity C4
Connect.The P poles of the diode D3 are connected Jing after resistance R5 with the base stage of audion VT2, its N pole Jing after resistance R6 with audion
The colelctor electrode of VT2 is connected.The emergency light BL is serially connected between the emitter stage of audion VT3 and the negative pole of accumulator GB, institute
State switch KA to be serially connected between the colelctor electrode of audion VT3 and the positive pole of accumulator GB.
Meanwhile, the P poles of the diode D3 are connected respectively with the outfan of operational amplifier P and the base stage of audion VT1
Connect, its N pole is connected with the colelctor electrode of audion VT3.The colelctor electrode of the audion VT2 is connected with the base stage of audion VT3
Connect, its emitter stage is connected respectively with the negative pole and the emitter stage of audion VT1 and the negative pole of accumulator GB of electric capacity C2.
When using, closure switch KA, the resistance R1 and electric capacity C1 and diode rectifier U composition step-down rectifier electricity
Road, for carrying out step-down rectifier process to the mains supply of 220V.Wherein, diode rectifier U is four 1N4001 rectifications two
The diode rectifier of pole pipe composition, the resistance of the resistance R1 is 1M Ω, electric capacity C1 then adopt capacitance for 1.5 μ F electric capacity come
Realize, 220V power supplys 24V can be reduced to after blood pressure lowering.The electric capacity C2 is used to filter, and Zener diode D1 then can be played surely
The effect of pressure.During enforcement, the capacitance of the electric capacity C2 can adopt 100 μ F, the Zener diode D1 then to adopt 2CW105
Zener diode is realizing.
The operational amplifier P and slide rheostat RP, resistance R2, resistance R3 and electric capacity C3 can constitute an overcurrent
Protection circuit, the electronic component that electric current can be prevented excessive and damaged in circuit, circuit overcurrent protection can also be become by sliding
Hinder device RP to adjust default current protection value.During enforcement, the adjustable extent of the resistance of the slide rheostat RP is 0~1k
The resistance of Ω, resistance R2 is 550 Ω, and the resistance of resistance R3 is 680 Ω, and the capacitance of electric capacity C3 is 120 μ F, and operational amplifier P is adopted
It is LM324 type operational amplifiers.
Audion VT1 in this utility model and resistance R4, electric capacity C4 and diode D2 can constitute a buffer circuit,
The voltage and current waveform that electronic component when circuit turn-on and shut-off is born can be adjusted or be buffered, reduce voltage and electricity
Impact of the stream to electronic component, and the waveform of voltage and current can be made to keep steady statue, it is possible to decrease circuit is in turn-on and turn-off
When loss to voltage and current, so as to the electronic component in protection circuit, while utilization of the present utility model can also be improved
Rate.Wherein, the audion VT1 realizes that diode D2 is then using 1N4001 commutation diodes come real using 3AX51 audions
Existing, the resistance of resistance R4 selects the capacitance of 0.8k Ω, electric capacity C4 then to select 22 μ F.
When mains supply is normally used, the audion VT2 conductings, audion VT3 cut-offs, emergency light BL is in extinguishing
State.Meanwhile, mains supply can charge to accumulator GB.During enforcement, the audion VT2 adopts 3DG6 audions, audion
VT3 then adopts 3DD50 audions.In order to ensure practical effect, the resistance of the resistance R5 is 5.1k Ω, and resistance R6 is 1k
Ω, diode D3 are then realized using 1N4001 commutation diodes.It is described when mains supply has a power failure or needs power-off because of fire-fighting
Accumulator GB is powered, and audion VT3 conductings, emergency light BL is lit, you can carry out emergency lighting.
It is of the present utility model to be not only simple in structure and cost is relatively low, it is also convenient for safeguarding.This utility model reasonable in design,
Accumulator GB can be charged when mains supply is normally used, and then can be powered by accumulator GB when mains supply disconnects,
So that emergency light BL is lighted automatically, you can carry out emergency lighting.Meanwhile, operational amplifier P of the present utility model with slide
Rheostat RP, resistance R2, resistance R3 and electric capacity C3 can constitute a circuit overcurrent protection, electric current can be prevented excessive and damaged
Electronic component in circuit, the circuit overcurrent protection can also adjust default current protection value by slide rheostat RP.
Audion VT1 in this utility model and resistance R4, electric capacity C4 and diode D2 can also constitute a buffer circuit, can be to electricity
The voltage and current waveform that electronic component is born during the turn-on and turn-off of road is adjusted or buffers, and reduces voltage and current to electricity
The impact of subcomponent, and the waveform of voltage and current can be made to keep steady statue, it is possible to decrease circuit is in turn-on and turn-off to electricity
The loss of pressure and electric current, so as to the electronic component in further protection circuit, while profit of the present utility model can also be improved
With rate.
As described above, just can preferably realize this utility model.
Claims (5)
1. a kind of overcurrent protection buffer-type emergency light circuit, it is characterised in that：Mainly by diode rectifier U, operation amplifier
Device P, audion VT1, audion VT2, audion VT3, accumulator GB, positive pole is total to an input of diode rectifier U
The electric capacity C1 that same composition power input, negative pole are connected with another input of diode rectifier U, with electric capacity C1 phases simultaneously
The resistance R1 of connection, positive pole is connected with the cathode output end of diode rectifier U, the negative pole of negative pole and diode rectifier U is defeated
Go out the electric capacity C2 that end is connected, the pole of voltage stabilizing two that P poles are connected with the negative pole of electric capacity C2, N poles are connected with the positive pole of electric capacity C2
Pipe D1, one end is connected with the positive pole of electric capacity C2, the other end is connected with the outfan of operational amplifier P, control end and computing
The slide rheostat RP that the positive input terminal of amplifier P is connected, is serially connected in the negative pole of electric capacity C2 and the negative input of operational amplifier P
Resistance R2 between end, positive pole is connected Jing after resistance R3 with the negative input end of operational amplifier P, negative pole and operational amplifier P
The electric capacity C3 that is connected of outfan, positive pole is connected Jing after resistance R4 with the colelctor electrode of audion VT1, negative pole and electric capacity C2
The electric capacity C4 that negative pole is connected, two poles that P poles are connected with the colelctor electrode of audion VT1, N poles are connected with the positive pole of electric capacity C4
Pipe D2, P pole is connected Jing after resistance R5 with the base stage of audion VT2, N poles Jing after resistance R6 with the colelctor electrode phase of audion VT2
The diode D3 of connection, the emergency light BL being serially connected between the emitter stage of audion VT3 and the negative pole of accumulator GB, and concatenation
Switch KA compositions between the colelctor electrode of audion VT3 and the positive pole of accumulator GB；The P poles of the diode D3 respectively with fortune
The outfan for calculating amplifier P is connected with the base stage of audion VT1, and its N pole is connected with the colelctor electrode of audion VT3；It is described
The colelctor electrode of audion VT2 is connected with the base stage of audion VT3, its emitter stage respectively with the negative pole and audion of electric capacity C2
The emitter stage of VT1 and the negative pole of accumulator GB are connected.
2. a kind of overcurrent protection buffer-type emergency light circuit according to claim 1, it is characterised in that：The audion
VT1 is 3AX51 audions, and audion VT2 is 3DG6 audions, and audion VT3 is 3DD50 audions.
3. a kind of overcurrent protection buffer-type emergency light circuit according to claim 1, it is characterised in that：The diode
Commutator U is the diode rectifier of four 1N4001 commutation diodes compositions.
4. a kind of overcurrent protection buffer-type emergency light circuit according to claim 1, it is characterised in that：The voltage stabilizing two
Pole pipe D1 is 2CW105 Zener diodes, and diode D2 and diode D3 is 1N4001 commutation diodes.
5. a kind of overcurrent protection buffer-type emergency light circuit according to claim 1, it is characterised in that：The computing is put
Big device P is LM324 type operational amplifiers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621108103.0U CN206181479U (en) | 2016-10-10 | 2016-10-10 | Over -current protection buffering formula emergency lighting circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621108103.0U CN206181479U (en) | 2016-10-10 | 2016-10-10 | Over -current protection buffering formula emergency lighting circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206181479U true CN206181479U (en) | 2017-05-17 |
Family
ID=58677568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621108103.0U Expired - Fee Related CN206181479U (en) | 2016-10-10 | 2016-10-10 | Over -current protection buffering formula emergency lighting circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206181479U (en) |
-
2016
- 2016-10-10 CN CN201621108103.0U patent/CN206181479U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Yanwei Inventor before: Mu Shaoying |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170901 Address after: 528421 Guangdong city of Zhongshan Province Guzhen Town Letter No. 42 Building 5 Hang Road Patentee after: Zhongshan Ze Electronics Co., Ltd. Address before: 611230 Sichuan Economic Development Zone, Chongzhou Province Youth (College) Venture Park, building 2, building 5, No., No. 1 Patentee before: Sichuan million energy saving environmental protection technology Co., Ltd. |
|
| 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: 20170517 Termination date: 20171010 |