CN107734765A - A kind of flashlight high stability control circuit - Google Patents
A kind of flashlight high stability control circuit Download PDFInfo
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- CN107734765A CN107734765A CN201711071220.3A CN201711071220A CN107734765A CN 107734765 A CN107734765 A CN 107734765A CN 201711071220 A CN201711071220 A CN 201711071220A CN 107734765 A CN107734765 A CN 107734765A
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- resistance
- electric capacity
- pole
- triode
- operational amplifier
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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
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/37—Converter circuits
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- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a kind of flashlight high stability control circuit, it is characterised in that：Mainly by triode VT1, triode VT2, IGCT VS, light emitting diode VD, filtering and amplifying circuit, flash lamp BL, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4, electric capacity C5, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, diode D1, voltage-regulator diode D2 and diode D2 are formed.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 high stability 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 high stability control circuit.
The present invention is achieved through the following technical solutions：
A kind of flashlight high stability control circuit, mainly by triode VT1, triode VT2, IGCT VS,
Positive pole is connected after resistance R3 with triode VT1 colelctor electrode, base stage of the negative pole with triode VT1 after resistance R1 is connected
Electric capacity C1, the electric capacity C2 that positive pole is connected with electric capacity C1 negative pole, negative pole is connected with IGCT VS anode, positive pole is through electricity
Resistance R2 after be connected with triode VT1 emitter stage, negative pole ground connection electric capacity C3, P pole be connected with triode VT emitter stage,
Diode D1, the P pole that N poles are connected after resistance R4 with electric capacity C1 positive pole is connected with electric capacity C1 positive pole, N poles are through flash of light
The voltage-regulator diode D2 being connected after lamp BL with IGCT VS anode, is serially connected between voltage-regulator diode D2 and flash lamp BL
Filtering and amplifying circuit, positive pole is connected after resistance R5 with voltage-regulator diode D2 N poles, negative pole is connected with IGCT VS negative electrode
It is luminous that electric capacity C4, the P pole connect is connected with electric capacity C4 positive pole, N poles are connected after resistance R7 with triode VT2 base stage
Diode VD, the resistance R6 being serially connected between electric capacity C4 negative pole and light emitting diode VD P poles, it is serially connected in electric capacity C4 negative pole
Resistance R8 between triode VT2 base stage, positive pole is connected after resistance R9 with triode VT2 emitter stage, negative pole connects
The electric capacity C5 on ground, and P poles are connected after resistance R10 with triode VT2 colelctor electrode, N poles and IGCT VS control pole
The diode D3 compositions being connected；The negative pole composition power input of the positive pole of the electric capacity C1 and electric capacity C2；
The filtering and amplifying circuit is serially connected in voltage-regulator diode D2 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 VT1 is 9014 type triodes, and triode VT2 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) triode VT1 of the invention and resistance R1, resistance R2, resistance R3, resistance R4, electric capacity C1, electric capacity C2, electric capacity
C3 and diode D1 can form ripple peak restrained circuit, and the ripple peak restrained circuit can enter the harmonic wave in input power
Row is eliminated or suppressed, and wave energization pressure and unrestrained galvanization can be suppressed, so as to can ensure that stability during present invention operation,
The electronic component of the present invention can be prevented to be damaged.
(3) the triode VT2 can then form buffer circuit with resistance R9, resistance R10, electric capacity C5 and diode D3,
The voltage and current waveform that IGCT VS is born when can be to circuit turn-on and shut-off is adjusted and buffered, and reduces voltage and electricity
The impact to IGCT VS is flowed, and the waveform of voltage and current can be made to keep stable state, is protected so as to be formed to IGCT VS
The effect of shield, and stability when circuit is run can be further ensured that.
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 high stability control circuit of the present invention, mainly by triode VT1, triode
VT2, IGCT VS, light emitting diode VD, filtering and amplifying circuit, flash lamp BL, electric capacity C1, electric capacity C2, electric capacity C3, electric capacity C4,
Electric capacity C5, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance
R10, diode D1, voltage-regulator diode D2 and diode D3 are formed.Wherein, the flash lamp BL can be a light source,
It can be the flash lamp band of multiple light sources composition.Generally, flash lamp BL is realized from red globe lamp, needs flash lamp according to use
The chromolumes of other colors also may be selected to realize in BL.
During connection, the colelctor electrode of the positive pole of the electric capacity C1 with triode VT after resistance R3 is connected, and its negative pole is through electricity
It is connected after resistance R1 with triode VT base stage.The positive pole of the electric capacity C2 is connected with electric capacity C1 negative pole, its negative pole and crystalline substance
Brake tube VS anode is connected.Emitter stage of the positive pole of the electric capacity C3 with triode VT after resistance R2 is connected, its negative pole
Ground connection.The P poles of the diode D1 are connected with triode VT emitter stage, its positive pole of N poles after resistance R4 with electric capacity C1
It is connected.The P poles of the voltage-regulator diode D2 are connected with electric capacity C1 positive pole, its N pole after flash lamp BL with IGCT VS
Anode be connected.The filtering and amplifying circuit is serially connected between voltage-regulator diode D2 and flash lamp BL.The electric capacity C4 is just
Pole is connected after resistance R5 with voltage-regulator diode D2 N poles, and its negative pole is connected with IGCT VS negative electrode.Described luminous two
Pole pipe VD P poles are connected with electric capacity C4 positive pole, and its base stage of N poles with triode VT2 after resistance R7 is connected.The electricity
Resistance R6 is serially connected between electric capacity C4 negative pole and light emitting diode VD P poles, the resistance R8 be serially connected in electric capacity C4 negative pole with
Between triode VT2 base stage.Emitter stage of the positive pole of the electric capacity C5 with triode VT2 after resistance R9 is connected, and it is negative
Pole is grounded.Colelctor electrode of the P poles of the diode D3 with triode VT2 after resistance R10 is connected, its N pole and IGCT VS
Control pole be connected.The negative pole composition power input of the positive pole of the electric capacity C1 and electric capacity C2, the power input are external
220V civil powers.
During operation, the triode VT1 and resistance R1, resistance R2, resistance R3, resistance R4, electric capacity C1, electric capacity C2, electric capacity
C3 and diode D1 collectively constitutes ripple peak restrained circuit, and the ripple peak restrained circuit can be by the harmonic wave in input power
Eliminated or suppressed, and can be powered to wave pressure and unrestrained galvanization suppress, so as to can ensure that stabilization during present invention operation
Property, you can prevent the electronic component of the present invention to be damaged.During implementation, the resistance R1 and resistance R4 resistance is 800 Ω,
The resistance of the resistance R2 and resistance R3 are 680 Ω, and the electric capacity C1 and electric capacity C2 capacitance is 220 μ F, the electric capacity
C3 capacitance is 120 μ F.Meanwhile the diode D1 then uses 9014 types using 1N4007 type diodes, triode VT1
Triode is realized.
The voltage-regulator diode D2 can then play a part of voltage stabilizing, and during implementation, voltage-regulator diode D2 uses 2CW110 types
Voltage-regulator diode is realized.The electric capacity C4 is used to control being turned on and off for IGCT VS, so as to control flash lamp BL to light
Flicker, electric capacity C4 capacitance is also set to 220 μ F, the IGCT VS and then realized from KP types IGCT in the present embodiment, and
IGCT VS specified average current is 1A, and its rated peak voltage is 500V.Specifically, when the present invention switches on power, electric capacity
C4 is charged, and IGCT VS control pole is in the state of high level, then IGCT VS negative electrode and anode conducting, flash lamp BL are led
Lead to and light.Start to discharge after electric capacity C4 charging completes, IGCT VS control pole is in low level state, then IGCT VS
Negative electrode and anodal opening, flash lamp BL power-off.Charge after the completion of electric capacity C4 electric discharges, discharged again after charging complete again,
Electric capacity C4 charging and discharging repeatedly can cause flash lamp BL to be glistened according to certain time interval.
Wherein, the resistance R5 and resistance R6 is used for partial pressure current limliting, and resistance R5 is realized using the resistance of big resistance, this reality
Apply in example, resistance R5 uses resistance to realize that the resistance R6 then uses resistance as 30K Ω or so for 150K Ω or so resistance
Resistance realize.Can be by regulation resistance R5, resistance R6 and electric capacity C4 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 VT2 collectively constitutes buffer circuit with resistance R9, resistance R10, electric capacity C5 and diode D3, 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.During implementation, the resistance of the resistance R9 and resistance R10 are set to 500 Ω,
Electric capacity C5 capacitance is 68 μ F, and diode D3 realizes that triode VT2 then uses 3AX81 types three using 1N5401 types diode
Pole pipe is realized.Meanwhile the resistance of the resistance R7 is 500 Ω, the resistance of the resistance R8 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 D2 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 D 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 triode VT1 and resistance R1, resistance R2, resistance R3, resistance R4, electric capacity C1, electric capacity C2, electric capacity C3 and two
Pole pipe D1 can form ripple peak restrained circuit, the ripple peak restrained circuit harmonic wave in input power can be eliminated or
Suppress, and can be powered to wave pressure and unrestrained galvanization suppress, so as to can ensure that stability during present invention operation, you can prevent
The electronic component of the present invention is damaged.And the triode VT2 and resistance R9, resistance R10, electric capacity C5 and diode D3 are then
Buffer circuit can be formed, the voltage and current waveform that IGCT VS is born when can be to circuit turn-on and shut-off is adjusted gentle
Punching, reduce impact of the voltage and current to IGCT VS, and the waveform of voltage and current can be made to keep stable state, so as to right
IGCT VS forms the effect of protection, and can further ensure that stability when circuit is run.
As described above, it can preferably realize the present invention.
Claims (5)
- A kind of 1. flashlight high stability control circuit, it is characterised in that：Mainly by triode VT1, triode VT2, IGCT VS, positive pole is connected after resistance R3 with triode VT1 colelctor electrode, negative pole after resistance R1 with triode VT1's The electric capacity C1 that base stage is connected, the electric capacity that positive pole is connected with electric capacity C1 negative pole, negative pole is connected with IGCT VS anode C2, electric capacity C3, the P pole and triode VT hair that positive pole is connected after resistance R2 with triode VT1 emitter stage, negative pole is grounded Diode D1, the P pole that emitter-base bandgap grading is connected, N poles are connected after resistance R4 with electric capacity C1 positive pole is connected with electric capacity C1 positive pole Connect, the voltage-regulator diode D2 that N poles are connected after flash lamp BL with IGCT VS anode, be serially connected in voltage-regulator diode D2 with dodging Filtering and amplifying circuit between light lamp BL, positive pole is connected after resistance R5 with voltage-regulator diode D2 N poles, negative pole and IGCT Electric capacity C4, the P pole that VS negative electrode is connected is connected with electric capacity C4 positive pole, base stage of the N poles after resistance R7 with triode VT2 The light emitting diode VD being connected, the resistance R6 being serially connected between electric capacity C4 negative pole and light emitting diode VD P poles, is serially connected in Resistance R8 between electric capacity C4 negative pole and triode VT2 base stage, emitter stage phase of the positive pole after resistance R9 with triode VT2 Connection, the electric capacity C5 of negative pole ground connection, and P poles are connected after resistance R10 with triode VT2 colelctor electrode, N poles and IGCT The diode D3 compositions that VS control pole is connected；The negative pole composition power input of the positive pole of the electric capacity C1 and electric capacity C2；The filtering and amplifying circuit by operational amplifier P101, operational amplifier P102, be serially connected in voltage-regulator diode D2 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 high stability control circuit according to claim 1, it is characterised in that：The computing Amplifier P101 and operational amplifier P102 is LM358 single supply general-purpose operation amplifiers.
- A kind of 3. flashlight high stability control circuit according to claim 1, it is characterised in that：The brilliant lock Pipe VS is KP type IGCTs, and its specified average current is 1A, and its rated peak voltage is 500V.
- A kind of 4. flashlight high stability control circuit according to claim 1, it is characterised in that：It is described luminous Diode 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 VT1 is 9014 type triodes, and triode VT2 is 3AX81 type triodes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711071220.3A CN107734765A (en) | 2017-11-03 | 2017-11-03 | A kind of flashlight high stability control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711071220.3A CN107734765A (en) | 2017-11-03 | 2017-11-03 | A kind of flashlight high stability control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107734765A true CN107734765A (en) | 2018-02-23 |
Family
ID=61221502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711071220.3A Pending CN107734765A (en) | 2017-11-03 | 2017-11-03 | A kind of flashlight high stability control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107734765A (en) |
-
2017
- 2017-11-03 CN CN201711071220.3A patent/CN107734765A/en active Pending
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Legal Events
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| PB01 | Publication | ||
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Application publication date: 20180223 |