CN107734806A - A kind of flashlight buffer-type control circuit - Google Patents
A kind of flashlight buffer-type control circuit Download PDFInfo
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- CN107734806A CN107734806A CN201711070847.7A CN201711070847A CN107734806A CN 107734806 A CN107734806 A CN 107734806A CN 201711070847 A CN201711070847 A CN 201711070847A CN 107734806 A CN107734806 A CN 107734806A
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- resistance
- electric capacity
- pole
- operational amplifier
- poles
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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
-
- 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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a kind of flashlight buffer-type control circuit, it is characterised in that：Mainly it is made up of triode VT, IGCT VS, light emitting diode VD, filtering and amplifying circuit, flash lamp BL, electric capacity C1, electric capacity C2, electric capacity C3, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, voltage-regulator diode D1 and diode D2.The structure of the present invention is simple and cost is relatively low, is also convenient for safeguarding, and its is reasonable in design, the stability that circuit is run when can ensure that use, so as to improve the service life of signal lamp, while also cause the electronic device in control circuit to be not easy to be damaged, be adapted to promote the use.
Description
Technical field
The present invention relates to a kind of control circuit, more particularly to a kind of flashlight buffer-type control circuit.
Background technology
Flashlight is played a part of prompting by way of flash of light or transmits signal, is come mostly using control circuit
Flashlight work, control circuit control flashlight conducting and deenergization are controlled, so as to realize that signal lamp is dodged
Light.Control circuit currently used for flashlight is not only complicated to be not easy to safeguard, and less stable when running, from
And the service life of signal lamp is influenceed, while the electronic device in control circuit is also easily damaged.
The content of the invention
It is an object of the invention to overcome the control circuit of current flashlight is not only complicated to be not easy to safeguard, and
And when running the defects of less stable, there is provided one kind, which is not only simple in structure, to be easy to safeguard, and stability is preferably glistened letter
Signal lamp buffer-type control circuit.
The present invention is achieved through the following technical solutions：
A kind of flashlight buffer-type control circuit, mainly by triode VT, IGCT VS, P pole is after electric capacity C1
It is connected with IGCT VS negative electrode, the voltage-regulator diode D1 that N poles are connected after flash lamp BL with IGCT VS anode, goes here and there
The filtering and amplifying circuit being connected between voltage-regulator diode D1 and flash lamp BL, N of the positive pole after resistance R1 with voltage-regulator diode D1
Electric capacity C2, the P pole that pole is connected, negative pole is connected with IGCT VS negative electrode is connected with electric capacity C2 positive pole, N poles are through resistance
The light emitting diode VD being connected after R3 with triode VT base stage, it is serially connected in electric capacity C2 negative pole and light emitting diode VD P
Resistance R2 between pole, the resistance R4 being serially connected between electric capacity C2 negative pole and triode VT base stage, positive pole is after resistance R5
It is connected with triode VT emitter stage, the electric capacity C3 of negative pole ground connection, and colelctor electrode of the P poles after resistance R6 with triode VT
It is connected, the diode D2 compositions that N poles are connected with IGCT VS control pole；The positive pole and voltage-regulator diode of the electric capacity C1
D1 P poles are connected, and its negative pole is connected with IGCT VS negative electrode；The positive pole of the electric capacity C1 and negative pole composition power input
End；
The filtering and amplifying circuit is serially connected in voltage-regulator diode D1 N by operational amplifier P101, operational amplifier P102
Resistance R101 between pole and operational amplifier P101 negative input end, positive pole are connected with operational amplifier P101 negative input end
Connect, electric capacity C101, the P pole of negative pole ground connection is connected after resistance R102 with electric capacity C101 negative pole, N poles and operational amplifier
The diode D100 that P101 output end is connected, positive pole is connected with operational amplifier P101 positive input terminal, negative pole and fortune
The electric capacity C102 that amplifier P101 output end is connected is calculated, positive pole is connected with operational amplifier P102 positive input terminal, born
The electric capacity C103 that pole is connected with operational amplifier P102 output end, and be serially connected in diode D100 P poles and put with computing
Resistance R103 compositions between big device P102 output end；The output end of the operational amplifier P102 after flash lamp BL with crystalline substance
Brake tube VS anode is connected, and its negative input end is connected with operational amplifier P101 output end.
Further, the operational amplifier P101 and operational amplifier P102 is that LM358 single supply general-purpose operations are put
Big device.
Further, the IGCT VS is KP type IGCTs, and its specified average current is 1A, its rated peak voltage
For 500V.
Further, the light emitting diode VD is BT201 type light emitting diodes.
In order to ensure effect, the triode VT is 3AX81 type triodes.
The present invention compared with prior art, has advantages below and beneficial effect：
(1) structure of the invention is simple and cost is relatively low, is also convenient for safeguarding, and its is reasonable in design, can ensure that use
When circuit operation stability, so as to improve the service life of signal lamp, while also cause the electronic device in control circuit
It is not easy to be damaged.
(2) the buffering electricity that triode VT of the invention collectively constitutes with resistance R5, resistance R6, electric capacity C3 and diode D2
Road, the voltage and current waveform that IGCT VS is born when can be to circuit turn-on and shut-off are adjusted and buffered, and reduce voltage
With impact of the electric current to IGCT VS, and can make voltage and current waveform keep stable state, so as to IGCT VS shapes
Into the effect of protection, and it can ensure that stability when circuit is run.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is the circuit diagram of the filtering and amplifying 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, the flashlight buffer-type control circuit of the present invention, mainly by triode VT, IGCT VS,
Light emitting diode VD, filtering and amplifying circuit, flash lamp BL, electric capacity C1, electric capacity C2, electric capacity C3, resistance R1, resistance R2, resistance R3,
Resistance R4, resistance R5, resistance R6, voltage-regulator diode D1 and diode D2 are formed.Wherein, the flash lamp BL can be one
The flash lamp band of light source or multiple light sources composition.Generally, flash lamp BL is realized from red globe lamp, according to using need
Want flash lamp BL that the chromolumes of other colors also may be selected to realize.
During connection, the negative electrode of the P poles of the voltage-regulator diode D1 with IGCT VS after electric capacity C1 is connected, its N pole warp
Anode after flash lamp BL with IGCT VS is connected.The filtering and amplifying circuit is serially connected in voltage-regulator diode D1 and flash lamp BL
Between.The positive pole of the electric capacity C2 is connected after resistance R1 with voltage-regulator diode D1 N poles, the moon of its negative pole and IGCT VS
Pole is connected.The P poles of the light emitting diode VD are connected with electric capacity C2 positive pole, its N pole after resistance R3 with triode VT
Base stage be connected.The resistance R2 is serially connected between electric capacity C2 negative pole and light emitting diode VD P poles, the resistance R4 strings
It is connected between electric capacity C2 negative pole and triode VT base stage.Hair of the positive pole of the electric capacity C3 after resistance R5 with triode VT
Emitter-base bandgap grading is connected, its negative pole ground connection.Colelctor electrode of the P poles of the diode D2 with triode VT after resistance R6 is connected, its N
Pole is connected with IGCT VS control pole.
Meanwhile the positive pole of the electric capacity C1 is connected with voltage-regulator diode D1 P poles, the negative electrode of its negative pole and IGCT VS
It is connected.The positive pole of the electric capacity C1 and negative pole composition power input, the external 220V civil powers of the power input.
The electric capacity C1 of the present invention is used to filter, and the voltage-regulator diode D1 can then play a part of voltage stabilizing.It is described during implementation
Electric capacity C1 is then realized from the electric capacity that capacitance is 220 μ F, voltage-regulator diode D1 using 2CW110 types voltage-regulator diode.The electricity
Hold C2 to be used to control being turned on and off for IGCT VS, so as to control flash lamp BL light-emitting flash, electric capacity C2 in the present embodiment
Capacitance is also set to 220 μ F, the IGCT VS and then selects KP types IGCT to realize, and IGCT VS specified average current is
1A, its rated peak voltage are 500V.Specifically, when the present invention switches on power, electric capacity C2 charges, at IGCT VS control pole
In the state of high level, then IGCT VS negative electrode and anode conducting, flash lamp BL are turned on and lighted.After electric capacity C2 charging completes
Start to discharge, IGCT VS control pole is in the negative electrode and anodal opening of low level state, then IGCT VS, flash lamp BL
Power-off.Charge, discharged again after charging complete, electric capacity C2 charging and discharging repeatedly can be made again after the completion of electric capacity C2 electric discharges
Glistened into flash lamp BL according to certain time interval.
Wherein, the resistance R1 and resistance R2 is used for partial pressure current limliting, and resistance R1 is realized using the resistance of big resistance, this reality
Apply in example, resistance R1 uses resistance to realize that the resistance R2 then uses resistance as 30K Ω or so for 150K Ω or so resistance
Resistance realize.Can be by regulation resistance R1, resistance R2 and electric capacity C2 numerical value during implementation, and then change flash lamp BL and dodge
Bright time and frequency.The light emitting diode VD is used for the working condition for showing whole circuit, when the control circuit of the present invention
After switching on power, light emitting diode VD lights, and after the control circuit deenergization of the present invention, light emitting diode VD extinguishes, this
Light emitting diode VD in embodiment is realized using BT201 types light emitting diode.
The triode VT and resistance R5, resistance R6, electric capacity C3 and diode D2 collectively constitute buffer circuit, can be to electricity
The voltage and current waveform that IGCT VS is born during the turn-on and turn-off of road is adjusted and buffered, and reduces voltage and current to crystalline substance
Brake tube VS impact, and the waveform of voltage and current can be made to keep stable state, so as to form the work of protection to IGCT VS
With, and can ensure that stability when circuit is run.During implementation, the resistance of the resistance R5 and resistance R6 are set to 500 Ω, electric capacity
C3 capacitance is 68 μ F, and diode D2 is realized using 1N5401 types diode, triode VT then using 3AX81 types triode come
Realize.Meanwhile the resistance of the resistance R3 is 500 Ω, the resistance of the resistance R4 is 480 Ω.
As shown in Fig. 2 the filtering and amplifying circuit is by operational amplifier P101, operational amplifier P102, resistance R101, electricity
Hinder R102, resistance R103, electric capacity C101, electric capacity C102, electric capacity C103 and diode D100 composition.Wherein, the computing is put
Big device P101 and operational amplifier P102 is using LM358 single supply general-purpose operation amplifiers, and the diode D100 is then
Using 1N4007 type diodes.The capacitance of the electric capacity C101 is that 47 μ F, electric capacity C102 and electric capacity C103 capacitance are then 120 μ
F.The resistance of the resistance R101 is that 0.6K Ω, the resistance R102 and resistance R103 resistance are 0.8K Ω.
During connection, the resistance R101 is serially connected in voltage-regulator diode D1 N poles and operational amplifier P101 negative input end
Between.The positive pole of the electric capacity C101 is connected with operational amplifier P101 negative input end, its negative pole ground connection.The diode
Negative pole of the D100 P poles with electric capacity C101 after resistance R102 is connected, and its N pole is connected with operational amplifier P101 output end
Connect.The positive pole of the electric capacity C102 is connected with operational amplifier P101 positive input terminal, its negative pole and operational amplifier P101
Output end be connected.The positive pole of the electric capacity C103 is connected with operational amplifier P102 positive input terminal, its negative pole and fortune
The output end for calculating amplifier P102 is connected.The resistance R103 is serially connected in diode D100 P poles and operational amplifier P102
Output end between.
Meanwhile anode of the output end of the operational amplifier P102 with IGCT VS after flash lamp BL is connected, its
Negative input end is connected with operational amplifier P101 output end.The present invention is set between voltage-regulator diode D1 and flash lamp BL
Filtering and amplifying circuit, processing can be filtered to input flash lamp BL and the signal for controlling flash lamp BL to open and close, so as to filter out control
The clutter of signal processed, so that control signal is more stable, and it can more accurately control flash lamp BL, moreover it is possible to ensure flash lamp BL's
Service life.
The structure of the present invention is simple and cost is relatively low, is also convenient for safeguarding, and its is reasonable in design, electricity when can ensure that use
The stability of road operation, so as to improve the service life of signal lamp, while also the electronic device in control circuit is not easy
It is damaged.The buffer circuit that the triode VT collectively constitutes with resistance R5, resistance R6, electric capacity C3 and diode D2, can be right
The voltage and current waveform that IGCT VS is born when circuit turn-on and shut-off is adjusted and buffered, and reduces voltage and current pair
IGCT VS impact, and the waveform of voltage and current can be made to keep stable state, so as to form protection to IGCT VS
Effect, and can ensure that stability when circuit is run.
As described above, it can preferably realize the present invention.
Claims (5)
- A kind of 1. flashlight buffer-type control circuit, it is characterised in that：Mainly by triode VT, IGCT VS, P poles warp It is connected after electric capacity C1 with IGCT VS negative electrode, the voltage stabilizing two that N poles are connected after flash lamp BL with IGCT VS anode Pole pipe D1, the filtering and amplifying circuit being serially connected between voltage-regulator diode D1 and flash lamp BL, positive pole after resistance R1 with voltage stabilizing two Electric capacity C2, the P pole that pole pipe D1 N poles are connected, negative pole is connected with IGCT VS negative electrode is connected with electric capacity C2 positive pole, The light emitting diode VD that N poles are connected after resistance R3 with triode VT base stage, it is serially connected in electric capacity C2 negative pole and luminous two Resistance R2 between pole pipe VD P poles, the resistance R4 being serially connected between electric capacity C2 negative pole and triode VT base stage, positive pole warp Be connected after resistance R5 with triode VT emitter stage, negative pole ground connection electric capacity C3, and P poles after resistance R6 with triode VT Colelctor electrode be connected, diode D2 that N poles are connected with IGCT VS control pole composition；The positive pole of the electric capacity C1 with it is steady Pressure diode D1 P poles are connected, and its negative pole is connected with IGCT VS negative electrode；The positive pole of the electric capacity C1 forms with negative pole Power input；The filtering and amplifying circuit by operational amplifier P101, operational amplifier P102, be serially connected in voltage-regulator diode D1 N poles with Resistance R101 between operational amplifier P101 negative input end, positive pole is connected with operational amplifier P101 negative input end, Electric capacity C101, the P pole of negative pole ground connection is connected after resistance R102 with electric capacity C101 negative pole, N poles and operational amplifier P101 The diode D100 that is connected of output end, positive pole is connected with operational amplifier P101 positive input terminal, negative pole and computing are put The electric capacity C102 that big device P101 output end is connected, positive pole is connected with operational amplifier P102 positive input terminal, negative pole and The electric capacity C103 that operational amplifier P102 output end is connected, and it is serially connected in diode D100 P poles and operational amplifier Resistance R103 compositions between P102 output end；The output end of the operational amplifier P102 after flash lamp BL with IGCT VS anode is connected, and its negative input end is connected with operational amplifier P101 output end.
- A kind of 2. flashlight buffer-type control circuit according to claim 1, it is characterised in that：The computing is put Big device P101 and operational amplifier P102 is LM358 single supply general-purpose operation amplifiers.
- A kind of 3. flashlight buffer-type control circuit according to claim 1, it is characterised in that：The IGCT VS is KP type IGCTs, and its specified average current is 1A, and its rated peak voltage is 500V.
- A kind of 4. flashlight buffer-type control circuit according to claim 1, it is characterised in that：Described luminous two Pole pipe VD is BT201 type light emitting diodes.
- A kind of 5. flashlight buffer-type control circuit according to claim 1, it is characterised in that：The triode VT is 3AX81 type triodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711070847.7A CN107734806A (en) | 2017-11-03 | 2017-11-03 | A kind of flashlight buffer-type control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711070847.7A CN107734806A (en) | 2017-11-03 | 2017-11-03 | A kind of flashlight buffer-type control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107734806A true CN107734806A (en) | 2018-02-23 |
Family
ID=61222493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711070847.7A Pending CN107734806A (en) | 2017-11-03 | 2017-11-03 | A kind of flashlight buffer-type control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107734806A (en) |
-
2017
- 2017-11-03 CN CN201711070847.7A patent/CN107734806A/en active Pending
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Legal Events
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180223 |