CN107750072A - A kind of LED flash band energy-saving control system based on current buffering circuit - Google Patents
A kind of LED flash band energy-saving control system based on current buffering circuit Download PDFInfo
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- CN107750072A CN107750072A CN201711040780.2A CN201711040780A CN107750072A CN 107750072 A CN107750072 A CN 107750072A CN 201711040780 A CN201711040780 A CN 201711040780A CN 107750072 A CN107750072 A CN 107750072A
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- polar capacitor
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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]
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Abstract
The invention discloses a kind of LED flash band energy-saving control system based on current buffering circuit, mainly by diode rectifier U1, control chip U2, triode VT1, current buffering circuit, triode VT2, triode VT3, triode VT4, unidirectional thyristor VS, polar capacitor C7, and the composition such as resistance R4.The present invention is by being suppressed or being eliminated to the harmonic wave in DC voltage, and after instantaneous high current caused by DC voltage loading is limited or adjusted, make DC voltage cleaner, more steady, so as to improve the stablizing effect of output voltage of the present invention, therefore the present invention can effectively prevent LED flash band LEDW from occurring continuous flicker when brightness changes, service life of the LED flash with LEDW can effectively be extended, saved material resources well.
Description
Technical field
The present invention relates to a kind of energy-saving control system, is that a kind of LED based on current buffering circuit dodges specifically
Light light bar energy-saving control system.
Background technology
Now with the continuous improvement of the living standard of people, requirement to the landscaping of life also more and more higher, people
For the living environment to make oneself beautiful, just brought using the LED flash with various light sources and interior beautified, and people
It is more LED flash band is disposed in the interior in the undercut at top, formed not under the control of the control system of LED flash band
The beautiful ring of light of well-illuminated degree, the ring of light can not only beautify living environment, moreover it is possible to be brought at night for people a kind of beautiful magical
Sense.However, the control system of existing LED flash band has the problem of output voltage stability difference, cause LED flash band
Occurs continuous flicker, the serious service life for shortening LED flash band, so as to cause material resources when brightness changes
Significant wastage.
Therefore it provides a kind of LED flash band that can improve output voltage stabilization effect is when business with control system
It is anxious.
The content of the invention
It is an object of the invention to the control system for overcoming existing LED flash band to have output voltage stability difference
Defect, there is provided a kind of LED flash band energy-saving control system based on current buffering circuit.
The present invention is achieved through the following technical solutions：A kind of LED flash band energy-conservation based on current buffering circuit
Control system, mainly by diode rectifier U1, control chip U2, triode VT1, triode VT2, triode VT3, triode
VT4, unidirectional thyristor VS, the current buffering circuit being connected with diode rectifier U1 cathode output end, positive pole and two poles
Pipe rectifier U1 cathode output end is connected, the pole that negative pole is grounded after being connected with diode rectifier U1 cathode output end
Property electric capacity C1, N poles are connected after resistance R1 with diode rectifier U1 cathode output end, P poles and diode rectifier U1
The voltage-regulator diode D1 that is connected of cathode output end, positive pole is connected after inductance L1 with voltage-regulator diode D1 N poles, negative pole
The polar capacitor C2 of ground connection, one end is connected with polar capacitor C2 positive pole, the other end is connected with control chip U2 VDD pins
The resistance R2 connect, positive pole is connected after adjustable resistance R3 with triode VT1 base stage, negative pole and control chip U2 OSC1 are managed
Polar capacitor C3, the P pole that pin is connected is connected with control chip U2 KEY pins, N poles are connected with triode VT1 base stage
The diode D2 connect, one end is connected with control chip U2 OSC2 pins, the other end is connected with triode VT1 base stage
Inductance L2, P pole is connected after resistance R9 with control chip U2 Q3 pins, base of the N poles after resistance R10 with triode VT4
The diode D3 that pole is connected, one end is connected with triode VT3 colelctor electrode, the other end and triode VT2 colelctor electrode phase
The resistance R8 being grounded after connection, positive pole is connected with control chip U2 Q2 pins, negative pole is connected with triode VT3 base stage
Polar capacitor C4, positive pole is connected after resistance R6 with control chip U2 Q1 pins, negative pole and triode VT2 base stage phase
The polar capacitor C5 of connection, negative pole is connected with triode VT3 emitter stage, hair of the positive pole after resistance R5 with triode VT2
The polar capacitor C6 that emitter-base bandgap grading is connected, positive pole is connected with triode VT2 emitter stage, negative pole and unidirectional thyristor VS control
The polar capacitor C7 that is connected is held, one end is connected with triode VT2 emitter stage, the other end and triode VT4 emitter stage
The resistance R7 being connected, and one end is connected with unidirectional thyristor VS anode, the other end as control system wherein one
The resistance R4 compositions of individual output end；
Adjustable side of the N poles of the diode D2 also with adjustable resistance R3 is connected；The colelctor electrode of the triode VT1 connects
Ground, its emitter stage are connected with control chip U2 VSS pins；The VSS pins of the control chip U2 are also with triode VT4's
Colelctor electrode is connected, its GND pin ground connection；The colelctor electrode of the triode VT3 is also connected with diode D3 P poles；It is described
Triode VT4 colelctor electrode is grounded after being also connected with unidirectional thyristor VS negative electrode；Two of the diode rectifier U1
Input is collectively forming the input of control system.
The current buffering circuit FET MOS101, triode VT101, triode VT102, diode D101, two
Pole pipe D103, one end is connected with FET MOS101 grid, the other end is connected with triode VT101 colelctor electrode
Inductance L101, negative pole be connected with FET MOS101 source electrode after ground connection, positive pole after resistance R102 with triode VT102
Polar capacitor C101, the P pole that is connected of emitter stage be connected with FET MOS101 drain electrode, N poles and triode VT102
The diode D102 that is connected of base stage, positive pole is connected with diode D101 N poles, negative pole and triode VT102 current collection
The polar capacitor C102 that pole is connected, positive pole is connected with diode D103 N poles, the polar capacitor C103 of negative pole ground connection, and one
End is connected with diode D101 N poles, the inductance L102 that the other end is connected with polar capacitor C103 positive pole, and one end
It is connected with diode D103 N poles, the resistance R103 compositions that the other end is connected with polar capacitor C103 negative pole；The field
Effect pipe MOS101 grid is connected with diode rectifier U1 cathode output end；The negative pole of the polar capacitor C103 is made
For another output end of control system.
To ensure the practical effect of the present invention, the control chip U2 is that HCF4060 divides integrated chip.The list
It is TYN625 unidirectional thyristors to IGCT VS.The diode rectifier U1 is 4 1N4004 silicon rectifier diodes compositions
Diode rectifier.
The present invention compared with prior art, has advantages below and beneficial effect：
(1) present invention can be suppressed or eliminated to the harmonic wave in DC voltage, and be produced when can be loaded to DC voltage
Instantaneous high current limited or adjusted, make DC voltage cleaner, more steady, so as to improve output voltage of the present invention
Stablizing effect, and can effectively prevent LED flash band from occurring continuous flicker when brightness changes, it can effectively extend LED
The service life of flash lamp band, has saved material resources well.
(2) current buffering circuit that the present invention is set can suppress input current using the characteristic that inductive current can not be mutated
Climbing, the characteristic that can not be mutated using capacitance voltage are suppressed the climbing of the voltage of input, ensure that the control of the present invention
System processed can provide stable electric current for LED flash band.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the present invention.
Fig. 2 is the electrical block diagram of the current buffering circuit of the present invention.
Embodiment
The present invention is described in further detail with reference to embodiment and its accompanying drawing, but embodiments of the present invention are not
It is limited to this.
As shown in figure 1, the present invention is mainly by diode rectifier U1, control chip U2, triode VT1, triode VT2,
Triode VT3, triode VT4, current buffering circuit, unidirectional thyristor VS, resistance R1, resistance R2, adjustable resistance R3, resistance
R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, resistance R10, polar capacitor C1, polar capacitor C2, polar capacitor
C3, polar capacitor C4, polar capacitor C5, polar capacitor C6, polar capacitor C7, voltage-regulator diode D1, diode D2, diode
D3, inductance L1, and inductance L2 compositions.
To ensure the practical effect of the present invention, the control chip U2 is that HCF4060 divides integrated chip.The list
It is TYN625 unidirectional thyristors to IGCT VS.The diode rectifier U1 is 4 1N4004 silicon rectifier diodes compositions
Diode rectifier；Meanwhile triode VT1~VT4 is 3DG06 triodes；Resistance Rl is 500k Ω metalfilmresistors, resistance
R2 resistance is 200k Ω, and resistance R3 Standard resistance range is 20~200k Ω adjustable resistance, and resistance R4~R6 resistance is
5k Ω, resistance R7 resistance are 100 Ω, and resistance R8 resistance is that 10k Ω, resistance R9 and resistance R10 resistance are 15k Ω；
Polar capacitor C1 and polar capacitor C2 is 1000 μ F/16V alminium electrolytic condenser, and polar capacitor C3 capacitance is 100 μ F/25V,
Polar capacitor C4, polar capacitor C5 and polar capacitor C6 capacitance are 10 μ F/16V, and polar capacitor C7 capacitance is 200 μ F/
50V；Voltage-regulator diode D1 is 1N4016 voltage-regulator diodes, and diode D2 and diode D3 are 1N5406 diodes；Inductance L1
It is 100 μ P/50Vd core inductance with inductance L2.
During connection, current buffering circuit is connected with diode rectifier U1 cathode output end.Polar capacitor C1 is just
Pole is connected with diode rectifier U1 cathode output end, after negative pole is connected with diode rectifier U1 cathode output end
Ground connection.Cathode output end of the voltage-regulator diode D1 N poles with diode rectifier U1 after resistance R1 is connected, P poles and two poles
Pipe rectifier U1 cathode output end is connected.N pole phase of the polar capacitor C2 positive pole after inductance L1 with voltage-regulator diode D1
Connection, negative pole ground connection.Resistance R2 one end is connected with polar capacitor C2 positive pole, and the VDD of the other end and control chip U2 is managed
Pin is connected.
Wherein, base stage of the polar capacitor C3 positive pole with triode VT1 after adjustable resistance R3 is connected, negative pole and control
Chip U2 OSC1 pins are connected.Diode D2 P poles are connected with control chip U2 KEY pins, N poles and triode
VT1 base stage is connected.Inductance L2 one end is connected with control chip U2 OSC2 pins, and the other end is with triode VT1's
Base stage is connected.Diode D3 P poles are connected after resistance R9 with control chip U2 Q3 pins, N poles after resistance R10 with
Triode VT4 base stage is connected.Resistance R8 one end is connected with triode VT3 colelctor electrode, the other end and triode VT2
Colelctor electrode be connected after be grounded.Polar capacitor C4 positive pole is connected with control chip U2 Q2 pins, negative pole and triode
VT3 base stage is connected.
Meanwhile polar capacitor C5 positive pole is connected after resistance R6 with control chip U2 Q1 pins, negative pole and three poles
Pipe VT2 base stage is connected.Polar capacitor C6 negative pole is connected with triode VT3 emitter stage, positive pole after resistance R5 with
Triode VT2 emitter stage is connected.Polar capacitor C7 positive pole is connected with triode VT2 emitter stage, negative pole with it is unidirectional
IGCT VS control terminal is connected.Resistance R7 one end is connected with triode VT2 emitter stage, the other end and triode
VT4 emitter stage is connected.Resistance R4 one end is connected with unidirectional thyristor VS anode, the other end and LED flash band
LEDW one of electrode is connected.
Adjustable side of the N poles of the diode D2 also with adjustable resistance R3 is connected；The colelctor electrode of the triode VT1 connects
Ground, its emitter stage are connected with control chip U2 VSS pins；The VSS pins of the control chip U2 are also with triode VT4's
Colelctor electrode is connected, its GND pin ground connection；The colelctor electrode of the triode VT3 is also connected with diode D3 P poles；It is described
Triode VT4 colelctor electrode is grounded after being also connected with unidirectional thyristor VS negative electrode；Two of the diode rectifier U1
Input is collectively forming the input of control system and is connected with civil power.
As shown in Fig. 2 the current buffering circuit FET MOS101 by model TO-263, model 3DG06
Triode VT101 and triode VT102, model 1N5406 diode D101~D103, capacitance be 100 μ F/16V pole
Property electric capacity C101, capacitance be 10 μ F/16V polar capacitor C102, inductance value be 50 μ H inductance L101 and inductance L102, capacitance
For 4.7 μ F/16V polar capacitor C103, resistance is 10k Ω resistance R101 and resistance R102, and resistance is 100k Ω's
Resistance R103 is formed.
During connection, inductance L101 one end is connected with FET MOS101 grid, the other end and triode VT101
Colelctor electrode be connected.Polar capacitor C101 negative pole is grounded after being connected with FET MOS101 source electrode, and positive pole is through electricity
It is connected after resistance R102 with triode VT102 emitter stage.Diode D102 P poles are connected with FET MOS101 drain electrode
Connect, N poles are connected with triode VT102 base stage.
Wherein, polar capacitor C102 positive pole is connected with diode D101 N poles, the collection of negative pole and triode VT102
Electrode is connected.Polar capacitor C103 positive pole is connected with diode D103 N poles, negative pole ground connection.Inductance L102 one end
It is connected with diode D101 N poles, the other end is connected with polar capacitor C103 positive pole.Resistance R103 one end and two poles
Pipe D103 N poles are connected, and the other end is connected with polar capacitor C103 negative pole.The grid of the FET MOS101 with
Diode rectifier U1 cathode output end is connected；The negative pole of the polar capacitor C103 as control system another is defeated
Go out to hold and with positive electrode connection end of the LED flash with LEDW be connected.
During the current buffering circuit carrying out practically, resonant inductance L102 connects as resonant inductance with diode D101,
To realize the Zero Current Switch of the zero current turning-on of switching tube and diode D103, electric capacity C102 is used for realizing zero electricity of switching tube
Compress switch, electric capacity C103 is used for changing energy.Diode D102 is used for realizing between FET MOS101 and triode VT102
Energy conversion.The characteristic that the current buffering circuit can not be mutated using inductance L101 electric currents suppresses diode rectifier U1 positive poles
The climbing of the positive electricity electrode current of output, using polar capacitor C102, in diode D101 curent change, voltage can not be mutated
Characteristic suppress input voltage climbing, ensure that the present invention control system can be provided surely for LED flash band
Fixed electric current.
During work, diode rectifier U1 and polar capacitor C1 form rectifier filter, and the 220V civil powers of input are rectified
The diode rectifier U1 of wave filter generates DC voltage after carrying out rectification, and polar capacitor C1 is then by the harmonic wave in raw DC voltage
Eliminated, make DC voltage cleaner, the DC voltage after filtering is transferred to voltage-regulator diode D1, resistance R1, resistance R2, electricity
Feel the current-limiting circuit that L1 and polar capacitor C2 is formed, the current-limiting circuit is carried out to instantaneous high current caused by DC voltage loading
Limitation, and electric current release is carried out by polar capacitor C2, make DC voltage more stable, DC voltage is carried out by current-limiting circuit
The 6.8V DC voltages are simultaneously transferred to control chip U2, polarity by the 6.8V DC voltages stablized after current limliting, current-limiting circuit
The multi-resonant oscillating circuit that electric capacity C3, adjustable resistance R3, inductance L2 and diode D2 are formed, and the stable 6.8V DC voltages are same
Shi Zuowei control chips U2 operating voltage.Meanwhile the electric current of diode rectifier U1 cathode output end output end is through electric current
After buffer circuit progress current buffering processing a stable positive electrode is provided for LED flash with LEDW.
When multi-resonant oscillating circuit obtains it is electric after start to vibrate overcurrent, control chip U2 to multivibrator produce
Oscillator signal carry out frequency division counter after, the control electricity of control chip U2 Q1 pins and Q2 pins and Q3 pin exporting changes
It is flat, make the switching controller that triode VT2~VT4, resistance R6~R10 and polar capacitor C5~C7 formed triode VT2 and
Triode VT3 and triode VT4 carries out interval conducting and exports different electric currents, and the electric current then passes through unidirectional thyristor VS, pole
Property electric capacity C7 and resistance R4 formed buffer circuit enter row buffering, make the electric current of output more stable, the buffered circuit be LED sudden strain of a muscle
Light light bar LEDW provides stable operating voltage, the different electric currents frequency that LED flash then exports with LEDW according to switching controller
Rate carries out flashing.The present invention at work, by the way that adjustable resistance R3 resistance is adjusted, can change LED flash
Flicker frequency with LEDW.
The present invention is by being suppressed or eliminated to the harmonic wave in DC voltage, and to wink caused by DC voltage loading
Between after high current limited or adjusted, make DC voltage cleaner, more steady, so as to improve the steady of output voltage of the present invention
Determine effect, therefore the present invention can effectively prevent LED flash band from occurring continuous flicker when brightness changes, and can effectively extend
The service life of LED flash band, has saved material resources well.
According to above-described embodiment, you can realize the present invention well.
Claims (5)
1. a kind of LED flash band energy-saving control system based on current buffering circuit, it is characterised in that mainly by diode
Rectifier U1, control chip U2, triode VT1, triode VT2, triode VT3, triode VT4, unidirectional thyristor VS, with two
The current buffering circuit that pole pipe rectifier U1 cathode output end is connected, the cathode output end of positive pole and diode rectifier U1
It is connected, polar capacitor C1, N pole that negative pole is grounded after being connected with diode rectifier U1 cathode output end is after resistance R1
Be connected with diode rectifier U1 cathode output end, P poles be connected with diode rectifier U1 cathode output end it is steady
Diode D1 is pressed, positive pole is connected after inductance L1 with voltage-regulator diode D1 N poles, the polar capacitor C2 of negative pole ground connection, one end
It is connected with polar capacitor C2 positive pole, the resistance R2 that the other end is connected with control chip U2 VDD pins, positive pole is through adjustable
It is connected after resistance R3 with triode VT1 base stage, the polar capacitor C3 that negative pole is connected with control chip U2 OSC1 pins,
The diode D2 that P poles are connected with control chip U2 KEY pins, N poles are connected with triode VT1 base stage, one end and control
Inductance L2, the P pole that coremaking piece U2 OSC2 pins are connected, the other end is connected with triode VT1 base stage is after resistance R9
It is connected with control chip U2 Q3 pins, N poles are connected after resistance R10 with triode VT4 base stage diode D3, one
End is connected with triode VT3 colelctor electrode, the resistance R8 that the other end is grounded after being connected with triode VT2 colelctor electrode, just
The polar capacitor C4 that pole is connected with control chip U2 Q2 pins, negative pole is connected with triode VT3 base stage, positive pole is through electricity
It is connected after resistance R6 with control chip U2 Q1 pins, the polar capacitor C5 that negative pole is connected with triode VT2 base stage, negative pole
It is connected with triode VT3 emitter stage, the polar capacitor that positive pole is connected after resistance R5 with triode VT2 emitter stage
C6, the polar capacitor that positive pole is connected with triode VT2 emitter stage, negative pole is connected with unidirectional thyristor VS control terminal
C7, the resistance R7 that one end is connected with triode VT2 emitter stage, the other end is connected with triode VT4 emitter stage, and
One end is connected with unidirectional thyristor VS anode, resistance R4 group of the other end as one of output end of control system
Into；
Adjustable side of the N poles of the diode D2 also with adjustable resistance R3 is connected；The grounded collector of the triode VT1,
Its emitter stage is connected with control chip U2 VSS pins；Collection of the VSS pins of the control chip U2 also with triode VT4
Electrode is connected, its GND pin ground connection；The colelctor electrode of the triode VT3 is also connected with diode D3 P poles；Described three
Pole pipe VT4 colelctor electrode is grounded after being also connected with unidirectional thyristor VS negative electrode；Two of the diode rectifier U1 are defeated
Enter the input that end is collectively forming control system.
2. a kind of LED flash band energy-saving control system based on current buffering circuit according to claim 1, it is special
Sign is, the current buffering circuit FET MOS101, triode VT101, triode VT102, diode D101, two poles
Pipe D103, the electricity that one end is connected with FET MOS101 grid, the other end is connected with triode VT101 colelctor electrode
Feel L101, negative pole be connected with FET MOS101 source electrode after be grounded, positive pole after resistance R102 with triode VT102's
Polar capacitor C101, the P pole that emitter stage is connected is connected with FET MOS101 drain electrode, N poles are with triode VT102's
The diode D102 that base stage is connected, positive pole is connected with diode D101 N poles, negative pole and triode VT102 colelctor electrode
The polar capacitor C102 being connected, positive pole is connected with diode D103 N poles, the polar capacitor C103 of negative pole ground connection, one end
Be connected with diode D101 N poles, the inductance L102 that the other end is connected with polar capacitor C103 positive pole, and one end with
The resistance R103 compositions that diode D103 N poles are connected, the other end is connected with polar capacitor C103 negative pole；The field effect
Should pipe MOS101 grid be connected with diode rectifier U1 cathode output end；The negative pole conduct of the polar capacitor C103
Another output end of control system.
3. a kind of LED flash band energy-saving control system based on current buffering circuit according to claim 2, it is special
Sign is that the control chip U2 is that HCF4060 divides integrated chip.
4. a kind of LED flash band energy-saving control system based on current buffering circuit according to claim 3, it is special
Sign is that the unidirectional thyristor VS is TYN625 unidirectional thyristors.
5. a kind of LED flash band energy-saving control system based on current buffering circuit according to claim 4, it is special
Sign is that the diode rectifier U1 is the diode rectifier of 4 1N4004 silicon rectifier diodes compositions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711040780.2A CN107750072A (en) | 2017-10-31 | 2017-10-31 | A kind of LED flash band energy-saving control system based on current buffering circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711040780.2A CN107750072A (en) | 2017-10-31 | 2017-10-31 | A kind of LED flash band energy-saving control system based on current buffering circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107750072A true CN107750072A (en) | 2018-03-02 |
Family
ID=61253315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711040780.2A Pending CN107750072A (en) | 2017-10-31 | 2017-10-31 | A kind of LED flash band energy-saving control system based on current buffering circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107750072A (en) |
-
2017
- 2017-10-31 CN CN201711040780.2A patent/CN107750072A/en active Pending
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Application publication date: 20180302 |