CN107682996A - A kind of buffer-type emergency light circuit - Google Patents
A kind of buffer-type emergency light circuit Download PDFInfo
- Publication number
- CN107682996A CN107682996A CN201711018375.0A CN201711018375A CN107682996A CN 107682996 A CN107682996 A CN 107682996A CN 201711018375 A CN201711018375 A CN 201711018375A CN 107682996 A CN107682996 A CN 107682996A
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- Prior art keywords
- triode
- electric capacity
- pole
- diode
- resistance
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Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a kind of buffer-type emergency light circuit, it is characterised in that：Mainly by constant-current source circuit, diode rectifier U, triode VT1, triode VT2, triode VT3, battery GB, emergency light BL, switch KA, electric capacity C1, electric capacity C2, electric capacity C3, resistance R1, resistance R2, resistance R3, resistance R4, voltage-regulator diode D1, diode D2 and diode D3 are formed.The present invention be not only simple in structure and cost is relatively low, be also convenient for safeguarding；The present invention is reasonable in design, and battery GB can be charged in mains supply normal use, and can then be powered when mains supply disconnects by battery GB, so that emergency light BL is lighted automatically, you can carries out emergency lighting, is adapted to promote the use.
Description
Technical field
The present invention relates to a kind of buffer-type emergency light circuit.
Background technology
Emergency light can power off in normal power source or because the device being illuminated after the power-off of fire-fighting accident, although emergency light is not
Often use, but be essential in the building of modernization.Domestic power supply is more sufficient at present, emergency light using less,
Therefore need periodically to carry out Inspection and maintenance to emergency light, to ensure that emergency light can normal use.Control currently used for emergency light
Circuit structure processed is more complicated, relatively more using electronic component so that control circuit cost is higher, while is also inconvenient for safeguarding
Maintenance.
The content of the invention
It is an object of the invention to provide a kind of buffer-type emergency light circuit, to expect that the knot of emergency light circuit can be simplified
Structure, in order to Maintenance and Repair, while cost can also be reduced.
The present invention is achieved through the following technical solutions：
A kind of buffer-type emergency light circuit, mainly by constant-current source circuit, diode rectifier U, triode VT1, triode
VT2, triode VT3, battery GB, an input of positive pole and diode rectifier U collectively constitute power input, negative pole
The electric capacity C1 being connected with diode rectifier U another input, the resistance R1 being in parallel with electric capacity C1, positive pole and negative pole
Electric capacity C2, the P pole being connected with constant-current source circuit is connected with electric capacity C2 negative pole, N poles are connected with electric capacity C2 positive pole
Voltage-regulator diode D1, positive pole is connected after resistance R2 with triode VT1 colelctor electrode, negative pole is connected with electric capacity C2 negative pole
Diode D2, the P poles that electric capacity C3, the P pole connect is connected with triode VT1 colelctor electrode, N poles are connected with electric capacity C3 positive pole
It is connected after resistance R3 with triode VT2 base stage, two that N poles are connected after resistance R4 with triode VT2 colelctor electrode
Pole pipe D3, the emergency light BL being serially connected between triode VT3 emitter stage and battery GB negative pole, and it is serially connected in triode
Switch KA compositions between VT3 colelctor electrode and battery GB positive pole；The P poles of the diode D3 and electric capacity C2 positive pole phase
Connection, its N pole is connected with triode VT3 colelctor electrode；The base stage of the triode VT1 is connected with electric capacity C2 positive pole,
Its emitter stage is connected with electric capacity C2 negative pole；The colelctor electrode of the triode VT2 is connected with triode VT3 base stage, its
Emitter stage is connected with electric capacity C2 negative pole and battery GB negative pole respectively；
The constant-current source circuit is then by operational amplifier P1, and operational amplifier P2, triode VT4, positive pole is after resistance R6
It is connected with operational amplifier P1 positive input terminal, the electric capacity C4 that negative pole is connected with operational amplifier P2 negative input end, goes here and there
The resistance R5 being connected between operational amplifier P1 negative input end and operational amplifier P2 output end, positive pole and operational amplifier
Put after resistance R7 with computing electric capacity C5, the P pole that P2 negative input end is connected, negative pole is connected with triode VT4 base stage
Big device P1 output end is connected, the diode D4 that N poles are connected after resistance R8 with triode VT4 colelctor electrode, and P poles
It is connected with triode VT4 emitter stage, two that N poles are connected after resistance R9 with diode rectifier U cathode output end
Pole pipe D5 is formed；The positive input terminal of the operational amplifier P1 is connected with diode rectifier U cathode output end；The electricity
The positive pole for holding C2 is connected with diode D4 N poles, and its negative pole is connected with diode D5 P poles.
Further, the triode VT1 is 3AX51 triodes, and triode VT2 is 3DG6 triodes, triode VT3 with
Triode VT4 is 3DD50 triodes.
Further, the diode rectifier U is the diode rectifier of four 1N4001 commutation diodes compositions.
Further, the voltage-regulator diode D1 is 2CW105 voltage-regulator diodes, and diode D2~D5 is 1N4001
Commutation diode.
In order to ensure effect, the operational amplifier P1 and operational amplifier P2 is that LM358 single supply general-purpose operations are put
Big device.
The present invention compared with prior art, has advantages below and beneficial effect：
(1) it is of the invention to be not only simple in structure and cost is relatively low, it is also convenient for safeguarding.The present invention is reasonable in design, in electricity
Battery GB can be charged during the normal use of source, and can then be powered when power supply disconnects by battery GB, so that emergent
Lamp BL is lighted automatically, you can carries out emergency lighting.
(2) triode VT1 of the invention can form a buffer circuit, energy with resistance R2, electric capacity C3 and diode D2
The voltage and current waveform that electronic component is born during to circuit turn-on and shut-off is adjusted or buffered, and reduces voltage and current
Impact to electronic component, and the waveform of voltage and current can be made to keep stable state, circuit can be reduced in turn-on and turn-off
Loss to voltage and current, so as to the electronic component in protection circuit, while the utilization rate of the present invention can also be improved.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is the structure chart of the constant-current source circuit of the present invention.
Embodiment
The present invention is described in further detail with reference to embodiment, but the implementation of the present invention is not limited to this.
Embodiment
As shown in Figure 1, 2, buffer-type emergency light circuit of the invention, mainly by constant-current source circuit, diode rectifier U,
Triode VT1, triode VT2, triode VT3, battery GB, emergency light BL, KA, electric capacity C1, electric capacity C2, electric capacity C3 are switched,
Resistance R1, resistance R2, resistance R3, resistance R4, voltage-regulator diode D1, diode D2 and diode D3 are formed.Wherein, the storage
Battery GB is using 6V batteries, and emergency light BL is then using 6V, 0.3A illuminating lamp.
During connection, the positive pole of the electric capacity C1 collectively constitutes power input with a diode rectifier U input,
Its negative pole is connected with diode rectifier U another input, and the power supply that the present invention uses is 220V civil powers.The resistance
R1 is in parallel with electric capacity C1, and the positive pole of the electric capacity C2 is connected with negative pole with constant-current source circuit；The voltage-regulator diode D1
P poles be connected with electric capacity C2 negative pole, its N pole is connected with electric capacity C2 positive pole.The positive pole of the electric capacity C3 is through resistance R2
The colelctor electrode with triode VT1 is connected afterwards, and its negative pole is connected with electric capacity C2 negative pole.The P poles and three of the diode D2
Pole pipe VT1 colelctor electrode is connected, and its N pole is connected with electric capacity C3 positive pole.The P poles of the diode D3 after resistance R3 with
Triode VT2 base stage is connected, and its colelctor electrode of N poles with triode VT2 after resistance R4 is connected.The emergency light BL strings
Be connected between triode VT3 emitter stage and battery GB negative pole, the switch KA be serially connected in triode VT3 colelctor electrode with
Between battery GB positive pole.
Meanwhile the P poles of the diode D3 are connected with electric capacity C2 positive pole, its N pole and triode VT3 colelctor electrode phase
Connection.The base stage of the triode VT1 is connected with electric capacity C2 positive pole, and its emitter stage is connected with electric capacity C2 negative pole.Institute
The colelctor electrode for stating triode VT2 is connected with triode VT3 base stage, its emitter stage negative pole and battery with electric capacity C2 respectively
GB negative pole is connected.
As shown in Fig. 2 the constant-current source circuit is then by operational amplifier P1, operational amplifier P2, triode VT4, electric capacity
C4, electric capacity C5, resistance R5~R9, diode D4 and diode D5 are formed.In order to ensure the practical effect of the present invention, institute
Triode VT4 is stated using 3DD50 triodes to realize, diode D4 and diode D5 then using 1N4001 commutation diodes come
Realize.The resistance of the electric capacity C4 is 220 μ F, and electric capacity C5 is 470 μ F.The resistance of the resistance R5 is 1k Ω, and resistance R6 is 600
Ω, resistance R7 and resistance R8 resistance are 800 Ω, and resistance R9 resistance is 1.2k Ω.The operational amplifier P1 and computing
Amplifier P2 is realized using LM358 single supply general-purpose operation amplifiers.
During connection, the positive pole of the electric capacity C4 is connected after resistance R6 with operational amplifier P1 positive input terminal, negative pole
It is connected with operational amplifier P2 negative input end, the resistance R5 is serially connected in operational amplifier P1 negative input end and computing is put
Between big device P2 output end.The positive pole of the electric capacity C5 is connected with operational amplifier P2 negative input end, its negative pole and three
Pole pipe VT4 base stage is connected.Output end of the P poles of the diode D4 with operational amplifier P1 after resistance R7 is connected,
Its colelctor electrode of N poles with triode VT4 after resistance R8 is connected.The P poles of the diode D5 and triode VT4 emitter stage
It is connected, its cathode output end of N poles with diode rectifier U after resistance R9 is connected.The operational amplifier P1 is just
Input is connected with diode rectifier U cathode output end；The positive pole of the electric capacity C2 is extremely connected with diode D4 N
Connect, its negative pole is connected with diode D5 P poles.
In use, constant-current source circuit can be handled the foreign current of input, so that it is guaranteed that the present invention possess it is constant
Operating current, avoid it from producing electromagnetic interference signal during work, greatly improve the stability of the present invention.Closure
KA is switched, the resistance R1 and electric capacity C1 and diode rectifier U form step-down rectifying circuit, for the civil power electricity to 220V
Source carries out step-down rectifier processing.Wherein, diode rectifier U is the diode rectification of four 1N4001 commutation diodes compositions
Device, the resistance of the resistance R1 be 1M Ω, and electric capacity C1 then uses capacitance to be realized for 1.5 μ F electric capacity, can will after decompression
220V power supplys are reduced to 24V.The electric capacity C2 is used to filter, and voltage-regulator diode D1 can then play a part of voltage stabilizing.It is described during implementation
Electric capacity C2 capacitance can use 100 μ F, the voltage-regulator diode D1 then to be realized using 2CW105 voltage-regulator diodes.
Triode VT1 in the present invention can form a buffer circuit with resistance R2, electric capacity C3 and diode D2, can be right
The voltage and current waveform that electronic component is born when circuit turn-on and shut-off is adjusted or buffered, and reduces voltage and current pair
The impact of electronic component, and the waveform of voltage and current can be made to keep stable state, circuit can be reduced in turn-on and turn-off pair
The loss of voltage and current, so as to the electronic component in protection circuit, while the utilization rate of the present invention can also be improved.Wherein,
The triode VT1 realizes that diode D2 is then realized using 1N4001 commutation diodes, resistance using 3AX51 triodes
R2 resistance selects 0.8k Ω, and electric capacity C3 capacitance then selects 22 μ F.
When mains supply normal use, the triode VT2 conductings, triode VT3 cut-offs, emergency light BL, which is in, to be extinguished
State.Meanwhile mains supply can charge to battery GB.During implementation, the triode VT2 uses 3DG6 triodes, triode
VT3 then uses 3DD50 triodes.In order to ensure practical effect, the resistance of the resistance R3 is 5.1k Ω, and resistance R4 is 1k
Ω, diode D3 are also realized using 1N4001 commutation diodes.It is described when mains supply has a power failure or needs power-off because of fire-fighting
Battery GB is powered, and triode VT3 conductings, emergency light BL is lit, you can carries out emergency lighting.
The present invention be not only simple in structure and cost is relatively low, be also convenient for safeguarding.The present invention is reasonable in design, in civil power electricity
Battery GB can be charged during the normal use of source, and can then be powered when mains supply disconnects by battery GB, so that
Emergency light BL is lighted automatically, you can carries out emergency lighting.Meanwhile triode VT1 of the invention and resistance R2, electric capacity C3 and two
Pole pipe D2 can form a buffer circuit, and the voltage and current waveform that can be born to circuit turn-on with electronic component during shut-off enters
Row adjustment or buffering, reduce impact of the voltage and current to electronic component, and the waveform of voltage and current can be made to keep stable shape
State, loss of the circuit in turn-on and turn-off to voltage and current can be reduced, so as to the electronic component in protection circuit, simultaneously
The utilization rate of the present invention can also be improved.
As described above, it can preferably realize the present invention.
Claims (5)
- A kind of 1. buffer-type emergency light circuit, it is characterised in that：Mainly by constant-current source circuit, diode rectifier U, triode VT1, triode VT2, triode VT3, battery GB, an input of positive pole and diode rectifier U collectively constitute power supply The electric capacity C1 that input, negative pole are connected with diode rectifier U another input, the resistance being in parallel with electric capacity C1 R1, positive pole is connected with electric capacity C2, the P pole that negative pole is connected with constant-current source circuit with electric capacity C2 negative pole, N poles and electric capacity C2 The voltage-regulator diode D1 that is connected of positive pole, positive pole is connected after resistance R2 with triode VT1 colelctor electrode, negative pole and electric capacity Electric capacity C3, the P pole that C2 negative pole is connected is connected with triode VT1 colelctor electrode, N poles are connected with electric capacity C3 positive pole Diode D2, P pole is connected after resistance R3 with triode VT2 base stage, current collection of the N poles after resistance R4 with triode VT2 The diode D3 that pole is connected, the emergency light BL being serially connected between triode VT3 emitter stage and battery GB negative pole, and The switch KA compositions being serially connected between triode VT3 colelctor electrode and battery GB positive pole；The P poles of the diode D3 and electricity The positive pole for holding C2 is connected, and its N pole is connected with triode VT3 colelctor electrode；The base stage of the triode VT1 is with electric capacity C2's Positive pole is connected, and its emitter stage is connected with electric capacity C2 negative pole；The colelctor electrode of the triode VT2 and triode VT3 base Pole is connected, and its emitter stage is connected with electric capacity C2 negative pole and battery GB negative pole respectively；The constant-current source circuit then by operational amplifier P1, operational amplifier P2, triode VT4, positive pole after resistance R6 with fortune Calculation amplifier P1 positive input terminal is connected, the electric capacity C4 that negative pole is connected with operational amplifier P2 negative input end, is serially connected in Resistance R5 between operational amplifier P1 negative input end and operational amplifier P2 output end, positive pole is with operational amplifier P2's Electric capacity C5, the P pole that negative input end is connected, negative pole is connected with triode VT4 base stage after resistance R7 with operational amplifier The diode D4 that P1 output end is connected, N poles are connected after resistance R8 with triode VT4 colelctor electrode, and P poles and three The diode that pole pipe VT4 emitter stage is connected, N poles are connected after resistance R9 with diode rectifier U cathode output end D5 is formed；The positive input terminal of the operational amplifier P1 is connected with diode rectifier U cathode output end；The electric capacity C2 Positive pole be connected with diode D4 N poles, its negative pole is connected with diode D5 P poles.
- A kind of 2. buffer-type emergency light circuit according to claim 1, it is characterised in that：The triode VT1 is 3AX51 Triode, triode VT2 are 3DG6 triodes, and triode VT3 and triode VT4 is 3DD50 triodes.
- A kind of 3. buffer-type emergency light circuit according to claim 1, it is characterised in that：The diode rectifier U is The diode rectifier of four 1N4001 commutation diodes compositions.
- A kind of 4. buffer-type emergency light circuit according to claim 1, it is characterised in that：The voltage-regulator diode D1 is 2CW105 voltage-regulator diodes, diode D2~D5 are 1N4001 commutation diodes.
- A kind of 5. simple type emergency light circuit according to claim 1, it is characterised in that：The operational amplifier P1 and fortune It is LM358 single supply general-purpose operation amplifiers to calculate amplifier P2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711018375.0A CN107682996A (en) | 2017-10-27 | 2017-10-27 | A kind of buffer-type emergency light circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711018375.0A CN107682996A (en) | 2017-10-27 | 2017-10-27 | A kind of buffer-type emergency light circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107682996A true CN107682996A (en) | 2018-02-09 |
Family
ID=61143018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711018375.0A Pending CN107682996A (en) | 2017-10-27 | 2017-10-27 | A kind of buffer-type emergency light circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107682996A (en) |
-
2017
- 2017-10-27 CN CN201711018375.0A patent/CN107682996A/en active Pending
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180209 |