CN205883635U - Linear LED switch mixing of colors drive circuit that adjusts luminance in step - Google Patents
Linear LED switch mixing of colors drive circuit that adjusts luminance in step Download PDFInfo
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- CN205883635U CN205883635U CN201620659510.4U CN201620659510U CN205883635U CN 205883635 U CN205883635 U CN 205883635U CN 201620659510 U CN201620659510 U CN 201620659510U CN 205883635 U CN205883635 U CN 205883635U
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Abstract
The utility model provides a linear LED switch mixing of colors drive circuit that adjusts luminance in step, it includes regulation and control switch, rectifier circuit, linear constant current drive dimmer circuit, the linear constant current drive circuit of mixing colours, the load includes load of white light LED and the load of gold -tinted LED, regulation and control switch and rectifier circuit are connected, rectifier circuit is connected with the load of white light LED, the load of gold -tinted LED, the load of white light LED with linear constant current drive dimmer circuit connects, the load of gold -tinted LED and linear constant current drive dimmer circuit, the linear constant current drive circuit connection that mixes colours, linear constant current drive dimmer circuit, linear constant current drive mixing of colors circuit are connected with rectifier circuit. Adopt the technical scheme of the utility model, through switching regulation and control switch, realized adjusting luminance in step and mixing colours, enlarged the product application scope, satisfied the market demand.
Description
Technical field
This utility model relates to a kind of LED drive circuit, particularly relates to a kind of linear LED switch synchronization light modulation toning and drives
Circuit.
Background technology
Traditional linear constant current drives light modulation and toning to be typically carried out separately, and the light adjusting circuit of prior art is in reality
Application regulates light and is followed successively by 100% power, 50% power, X% power, and only monochromatic burner dims.And electricity of mixing colours
The colour temperature that road regulates in actual applications is followed successively by white light, warm light, gold-tinted or gold-tinted, warm light, white light, and only equal-wattage
Under mix colours, control dullness, it is impossible to carry out synchronize light modulation and toning, it is impossible to meet the application demand on market.
Utility model content
For above technical problem, this utility model provides a kind of linear LED switch and synchronizes light modulation toning drive circuit,
There is synchronization dim and the function of color-adjustable.
To this, the technical solution of the utility model is:
A kind of linear LED switch synchronizes light modulation toning drive circuit, and it includes regulating switch, rectification circuit, linear constant current
Driving light adjusting circuit, linear constant current to drive toning circuit, load includes that white light LEDs load and yellow light LED load, and described regulation and control are opened
Closing and is connected with rectification circuit, the load of described rectification circuit and white light LEDs, yellow light LED load and are connected, described white light LEDs load and
Described linear constant current drives light adjusting circuit to connect, and the load of described yellow light LED and linear constant current drive light adjusting circuit, linear constant current to drive
Dynamic toning circuit connects, and described linear constant current drives light adjusting circuit, linear constant current to drive toning circuit to be connected with rectification circuit.Adopt
Use this technical scheme, light modulation toning can be realized simultaneously.
As further improvement of the utility model, described rectification circuit includes that rectifier bridge stack DB1, described linear constant current drive
Dynamic toning circuit includes the first constant-current driving control chip IC1, resistance R1, resistance R2, resistance R5, electric capacity C1, electric capacity C2, described
Linear constant current drive light adjusting circuit include the second constant-current driving control chip IC2, resistance R3, resistance R4, resistance R6, electric capacity C3,
Electric capacity C4, described first constant-current driving control chip IC1 include a VDD pin, a VCC pin, a REXT1 pin,
Oneth REXT2 pin, a VIN pin, a NC pin, an OUT1 pin, an OUT2 pin；Described second constant current is driven
Dynamic control chip IC2 includes the 2nd VDD pin, the 2nd VCC pin, the 2nd REXT1 pin, the 2nd REXT2 pin, the 2nd VIN
Pin, the 2nd NC pin, the 2nd OUT1 pin, the 2nd OUT2 pin；
Described regulating switch is connected with the L end of rectifier bridge stack DB1, with resistance R5, electricity the while of described rectifier bridge stack DB1 positive pole
Resistance R6, the positive pole of white light LEDs load, the positive pole of yellow light LED load connect, and described resistance R5 and a VIN pin connect, described
Resistance R6 and the 2nd VIN pin connect；Negative pole and the 2nd OUT2 pin of the load of described white light LEDs connect, and described yellow light LED is born
The negative pole carried and an OUT1 pin, an OUT2 pin, the 2nd OUT1 pin connect, a described VDD pin and electric capacity C1
Connecting, a described VCC pin is connected with electric capacity C2, and a described REXT1 pin is connected with resistance R1, a REXT2 pin
Being connected with one end of resistance R2, the described resistance R2 other end and the 2nd REXT2 pin connect, described resistance R1, electric capacity C1, electric capacity
C2 is connected respectively to the negative pole of rectifier bridge stack DB1；
Described 2nd VDD pin is connected with electric capacity C3, the 2nd VCC pin is connected with electric capacity C4, the 2nd REXT1 pin with electricity
Resistance R3 connects, and the 2nd REXT2 pin is connected with resistance R4, and described electric capacity C3, electric capacity C4, resistance R3, resistance R4 are connected respectively to
The negative pole of rectifier bridge stack DB1.
Using this technical scheme, can synchronize to dim and color-adjustable, switch can realize 100% power/white light, 50% merit successively
Rate/warm light, X%/gold-tinted or 100% power/gold-tinted, 50% power/warm light, X%/white light, meeting the application on market needs
Ask.
As further improvement of the utility model, described linear LED switch synchronizes light modulation toning drive circuit and also wraps
Include diode D1, electric capacity C5, resistance R7；The positive pole of described diode D1 is connected with described rectifier bridge stack DB1 positive pole, described two poles
The negative pole of pipe D1 connects with one end of electric capacity C5, one end of resistance R7, the positive pole of white light LEDs load, the positive pole of yellow light LED load
Connecing, the other end of described electric capacity C5, the other end of resistance R7 are connected with the negative pole of rectifier bridge stack DB1.
As further improvement of the utility model, described linear LED switch synchronizes light modulation toning drive circuit and included
Stream protection switch, one end of described overcurrent protective switch is connected with regulating switch, and the other end of described overcurrent protective switch is with whole
The L end of stream bridge heap DB1 connects.
As further improvement of the utility model, described overcurrent protective switch is electric fuse or PTC thermistor.
As further improvement of the utility model, the model of described first constant-current driving control chip IC1 is
SM2211E, the model of described second constant-current driving control chip IC2 is SM2213EA.
As further improvement of the utility model, the load of described white light LEDs, the position of yellow light LED load can be exchanged.
Compared with prior art, the beneficial effects of the utility model are:
Use the technical solution of the utility model, can realize synchronizing light modulation and mix colours again, when switching input switch power supply, defeated
Go out to realize successively 100% power/white light, 50% power/warm light, X% power/gold-tinted or 100% power/gold-tinted, 50% merit
Rate/warm light, X%/white light, expand products application scope, meet the market demand.
Accompanying drawing explanation
Fig. 1 is the module map of a kind of embodiment of this utility model.
Fig. 2 is the circuit diagram of a kind of embodiment of this utility model.
Detailed description of the invention
Below in conjunction with the accompanying drawings, preferably embodiment of the present utility model is described in further detail.
As it is shown in figure 1, a kind of linear LED switch synchronizes light modulation toning drive circuit, it includes regulating switch, rectified current
Road, linear constant current drive light adjusting circuit, linear constant current to drive toning circuit, and load includes that white light LEDs load and yellow light LED are born
Carrying, described regulating switch is connected with rectification circuit, and described rectification circuit loads with white light LEDs, yellow light LED load is connected, described
White light LEDs load drives light adjusting circuit to connect with described linear constant current, and the load of described yellow light LED and linear constant current drive light modulation electricity
Road, linear constant current drive toning circuit to connect, and described linear constant current drives light adjusting circuit, linear constant current to drive toning circuit with whole
Current circuit connects.Preferably, it is connected between described regulating switch and rectification circuit and has electric fuse.
Detailed circuit diagram is as in figure 2 it is shown, described rectification circuit includes rectifier bridge stack DB1, and described linear constant current drives to be adjusted
Color circuit includes the first constant-current driving control chip IC1, resistance R1, resistance R2, resistance R5, electric capacity C1, electric capacity C2, described linearly
Constant-current driving light adjusting circuit includes the second constant-current driving control chip IC2, resistance R3, resistance R4, resistance R6, electric capacity C3, electric capacity
C4, described first constant-current driving control chip IC1 include a VDD pin, a VCC pin, a REXT1 pin, first
REXT2 pin, a VIN pin, a NC pin, an OUT1 pin, an OUT2 pin；Second constant-current driving controls core
Sheet IC2 includes the 2nd VDD pin, the 2nd VCC pin, the 2nd REXT1 pin, the 2nd REXT2 pin, the 2nd VIN pin, second
NC pin, the 2nd OUT1 pin, the 2nd OUT2 pin；Load includes that white light LEDs load and yellow light LED load；
Described linear LED switch synchronizes light modulation toning drive circuit and also includes diode D1, electric capacity C5, resistance R7；Institute
State linear LED switch synchronization light modulation toning drive circuit and include electric fuse F1.One end of described electric fuse F1 is with regulating switch even
Connecing, the other end of described electric fuse F1 is connected with the L end of rectifier bridge stack DB1.Described rectifier bridge stack DB1 positive pole is simultaneously and diode
The positive pole of D1, resistance R5, resistance R6 connect, and described resistance R5 and a VIN pin connect, described resistance R6 and the 2nd VIN pipe
Foot connects；The negative pole of described diode D1 and electric capacity C5, resistance R7, the positive pole of white light LEDs load, the positive pole of yellow light LED load
Connecting, negative pole and the 2nd OUT2 pin of the load of described white light LEDs connect, the negative pole of described yellow light LED load and an OUT1
Pin, an OUT2 pin, the 2nd OUT1 pin connect, and a described VDD pin is connected with electric capacity C1, a described VCC pipe
Foot is connected with electric capacity C2, and a described REXT1 pin is connected with resistance R1, and a REXT2 pin is connected with one end of resistance R2,
The other end of described resistance R2 and the 2nd REXT2 pin connect, described resistance R1, electric capacity C1, electric capacity C2 respectively with electric capacity C5, electricity
The parallel connected end of resistance R7 connects, and is connected to the negative pole of rectifier bridge stack DB1；
Described 2nd VDD pin is connected with electric capacity C3, the 2nd VCC pin is connected with electric capacity C4, the 2nd REXT1 pin with electricity
Resistance R3 connects, and the 2nd REXT2 pin is connected with resistance R4, and described electric capacity C3, electric capacity C4, resistance R3, resistance R4 are connected respectively to
The negative pole of rectifier bridge stack DB1.The model of described first constant-current driving control chip IC1 is SM2211E, described second constant-current driving
The model of control chip IC2 is SM2213EA.
There is electric fuse F1 as in figure 2 it is shown, be connected between described regulating switch with rectifier bridge stack DB1, play overcurrent protection and make
With.During use, regulating switch is connected with civil power live wire, and the power supply input N end of rectifier bridge stack DB1 is connected with zero line.
Now inputting 8W system with 220Vac, light modulation toning ratio is 100% (white light), 50% (warm light), 10% (gold-tinted)
As a example by combine Fig. 2 and illustrate.Wherein, the first constant-current driving control chip IC1 and the work of the second constant-current driving control chip IC2
Make shown in the following Tables 1 and 2 of logic.
Table 1 first constant-current driving control chip IC1 work-based logic table
| Logic | Oneth REXT1 port threshold | Oneth REXT2 port threshold |
| First paragraph | 0.3V | 0.3V |
| Second segment | 0V | 0.6V |
| 3rd section | 0.6V | 0V |
Table 2 second constant-current driving control chip IC2 work-based logic table
| Logic | 2nd REXT1 port threshold | 2nd REXT2 port threshold |
| First paragraph | 0V | 0.6V |
| Second segment | 0.3V | 0.3V |
| 3rd section | 0.6V | 0V |
When system is operated in first paragraph, when i.e. regulating switch is by first time, owing to this section of system is in light modulation 100% power
With toning white states.Chip IC 2 only REXT2 port has electric current to flow through, now brilliant white light, and the electricity that now this port flows through
Stream is 0.6V/R4=25mA, is 8W system due to make, so flowing through the electric current=Pin/Vin of system, i.e. and 8W/310V=
25mA, so R4 value is 24 Ω；Wherein, Vin is voltage during 220Vac input.The REXT2 pin threshold ratio of chip IC 1
The REXT2 pin threshold value of chip IC 2 is low, so this road is without conducting electric current, and the R1 resistance taken at the REXT1 pin of chip IC 1
Value is 3K Ω at present, then the electric current flowing through this road is 0.3V/R1=0.1mA, and this value is the least negligible, but this resistance
The colour temperature of the regulation first paragraph white light that big I is suitable.
When system is operated in second segment, when i.e. regulating switch is by second time: owing to this section of system is in light modulation 50% power
With toning warm colour state, flow through the electric current of system and need to be down to 13mA right and left by 25mA and can realize changed power, and about 13mA
Electric current respectively born the electric current of half by white light LEDs and yellow light LED lamp bead and can realize the change of colour temperature, be and flow through white light and Huang
The electric current of light lamp bead is respectively 6.5mA.This section of threshold value of REXT2 port of chip IC 2 is 0.3V, this section of REXT2 port of chip IC 1
Threshold value is 0.6V, and when R2 value is 56 Ω, then the electric current flowing through R2 resistance is (0.6V-0.3V)/R2=5.35mA.Chip
This section of threshold value of REXT1 port of IC2 is 0.3V, and the electric current flowing through R3 resistance is 0.3V/R3=1.25mA, wherein, in order to meet
3rd section of power is 10%, so, R3 resistance value 240 Ω, the 3rd section of duty can be described, and then flows through yellow led
The electric current of lamp bead is that R3 electric current adds that R1 electric current is 5.35mA+1.25mA=6.6mA.Flow through the calculating of White LED lamp bead electric current
Mode is: (0.3V-5.35mA*R4)/R4=7.15mA, and wherein, 5.35mA is to flow through R2 resistance and the electric current of R4 resistance, R4 electricity
Resistance has taken 24 Ω at first paragraph, and when can regulate second segment warm light by changing R2 resistance, the change of colour temperature, the most in vain or partially yellow.
When system is operated in the 3rd section, when i.e. regulating switch is by the 3rd time: owing to this section of system is in light modulation 10% power
With toning yellow state, this section of REXT2 port of IC2 does not works, so this section of white led lamps does not works, owing to realize 10%
Power, then the electric current flowing through yellow led is 25mA/10=2.5mA, and now the threshold value of the REXT1 port of chip IC 2 is
0.6V, then can meet when R3 takes 240 Ω that to flow through the electric current of amber light be 2.5mA.And this section of REXT2 port of IC1 does not works so
No current circulates, and this section of threshold value of REXT1 port is 0.6V, and owing to R1 resistance value is 3K, the electric current flowing through R1 resistance is negligible
Disregard.
The detailed description of the invention of the above is better embodiment of the present utility model, not limits this practicality with this new
The scope that is embodied as of type, scope of the present utility model includes being not limited to this detailed description of the invention, all according to this utility model
Shape, structure made equivalence change all in protection domain of the present utility model.
Claims (6)
1. a linear LED switch synchronizes light modulation toning drive circuit, it is characterised in that: it include regulating switch, rectification circuit,
Linear constant current drives light adjusting circuit, linear constant current to drive toning circuit, and load includes that white light LEDs load and yellow light LED load, institute
Stating regulating switch to be connected with rectification circuit, described rectification circuit loads with white light LEDs, yellow light LED load is connected, described white light
LED load and described linear constant current drive light adjusting circuit to be connected, the load of described yellow light LED and linear constant current driving light adjusting circuit,
Linear constant current drives toning circuit to connect, and described linear constant current drives light adjusting circuit, linear constant current to drive toning circuit and rectification
Circuit connects.
Linear LED switch the most according to claim 1 synchronizes light modulation toning drive circuit, it is characterised in that: described rectification
Circuit includes rectifier bridge stack DB1, and described linear constant current drives toning circuit to include the first constant-current driving control chip IC1, resistance
R1, resistance R2, resistance R5, electric capacity C1, electric capacity C2, described linear constant current drives light adjusting circuit to include the second constant-current driving control core
Sheet IC2, resistance R3, resistance R4, resistance R6, electric capacity C3, electric capacity C4, described first constant-current driving control chip IC1 includes first
VDD pin, a VCC pin, a REXT1 pin, a REXT2 pin, a VIN pin, a NC pin, first
OUT1 pin, an OUT2 pin；Described second constant-current driving control chip IC2 include the 2nd VDD pin, the 2nd VCC pin,
2nd REXT1 pin, the 2nd REXT2 pin, the 2nd VIN pin, the 2nd NC pin, the 2nd OUT1 pin, the 2nd OUT2 pin；
Described regulating switch is connected with the L end of rectifier bridge stack DB1, with resistance R5, resistance the while of described rectifier bridge stack DB1 positive pole
The positive pole of R6, white light LEDs load, the positive pole of yellow light LED load connect, and described resistance R5 and a VIN pin connect, described electricity
Resistance R6 and the 2nd VIN pin connect；Negative pole and the 2nd OUT2 pin of the load of described white light LEDs connect, and described yellow light LED loads
Negative pole and an OUT1 pin, an OUT2 pin, the 2nd OUT1 pin connect, a described VDD pin and electric capacity C1 go here and there
Connection, a described VCC pin connects with electric capacity C2, and a described REXT1 pin is connected with resistance R1, a REXT2 pin and
One end of resistance R2 connects, and the other end of described resistance R2 and the 2nd REXT2 pin connect, described resistance R1, electric capacity C1, electric capacity
C2 is connected respectively to the negative pole of rectifier bridge stack DB1；
Described 2nd VDD pin is connected with electric capacity C3, and the 2nd VCC pin is connected with electric capacity C4, the 2nd REXT1 pin and resistance R3
Connecting, the 2nd REXT2 pin is connected with resistance R4, and described electric capacity C3, electric capacity C4, resistance R3, resistance R4 are connected respectively to rectification
The negative pole of bridge heap DB1.
Linear LED switch the most according to claim 2 synchronizes light modulation toning drive circuit, it is characterised in that: described line
Property LED switch synchronize light modulation toning drive circuit also include diode D1, electric capacity C5, resistance R7；The positive pole of described diode D1
It is connected with described rectifier bridge stack DB1 positive pole, the negative pole of described diode D1 and one end of electric capacity C5, one end of resistance R7, white light
The positive pole of the positive pole of LED load, yellow light LED load connects, the other end of described electric capacity C5, the other end of resistance R7 and rectifier bridge
The negative pole of heap DB1 connects.
Linear LED switch the most according to claim 3 synchronize light modulation toning drive circuit, it is characterised in that: described linearly
LED switch synchronizes light modulation toning drive circuit and includes overcurrent protective switch, one end of described overcurrent protective switch and regulating switch
Connecting, the other end of described overcurrent protective switch is connected with the L end of rectifier bridge stack DB1.
Linear LED switch the most according to claim 4 synchronizes light modulation toning drive circuit, it is characterised in that: described mistake is flowed
Protection switch is electric fuse or PTC thermistor.
Linear LED switch the most according to claim 2 synchronizes light modulation toning drive circuit, it is characterised in that: described first
The model of constant-current driving control chip IC1 is SM2211E, and the model of described second constant-current driving control chip IC2 is
SM2213EA。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620659510.4U CN205883635U (en) | 2016-06-28 | 2016-06-28 | Linear LED switch mixing of colors drive circuit that adjusts luminance in step |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620659510.4U CN205883635U (en) | 2016-06-28 | 2016-06-28 | Linear LED switch mixing of colors drive circuit that adjusts luminance in step |
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| Publication Number | Publication Date |
|---|---|
| CN205883635U true CN205883635U (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620659510.4U Active CN205883635U (en) | 2016-06-28 | 2016-06-28 | Linear LED switch mixing of colors drive circuit that adjusts luminance in step |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106793344A (en) * | 2017-02-20 | 2017-05-31 | 深圳市明微电子股份有限公司 | The linear constant current driving power supply and LED light emission device of a kind of compatible toning of controllable silicon light modulation |
| CN107820348A (en) * | 2017-12-05 | 2018-03-20 | 苏州菲达旭微电子有限公司 | A kind of linear full voltage frequency-conversion constant-current circuit and there is its LED |
| CN108112130A (en) * | 2018-01-11 | 2018-06-01 | 厦门恩耐照明技术有限公司 | A kind of thyristor regulating optical circuit of unrestricted choice color temperature mode |
| CN108135055A (en) * | 2018-01-12 | 2018-06-08 | 厦门恩耐照明技术有限公司 | It is a kind of can unrestricted choice light-modulating mode linearity light adjusting toning circuit |
| CN108712803A (en) * | 2018-07-13 | 2018-10-26 | 贵派电器股份有限公司 | Sufficient power LED sectional dimming toning driving power and its control method |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106793344A (en) * | 2017-02-20 | 2017-05-31 | 深圳市明微电子股份有限公司 | The linear constant current driving power supply and LED light emission device of a kind of compatible toning of controllable silicon light modulation |
| CN107820348A (en) * | 2017-12-05 | 2018-03-20 | 苏州菲达旭微电子有限公司 | A kind of linear full voltage frequency-conversion constant-current circuit and there is its LED |
| CN107820348B (en) * | 2017-12-05 | 2023-11-24 | 光美科技有限公司 | Linear full-voltage variable-frequency constant-current circuit and LED lamp with same |
| CN108112130A (en) * | 2018-01-11 | 2018-06-01 | 厦门恩耐照明技术有限公司 | A kind of thyristor regulating optical circuit of unrestricted choice color temperature mode |
| CN108135055A (en) * | 2018-01-12 | 2018-06-08 | 厦门恩耐照明技术有限公司 | It is a kind of can unrestricted choice light-modulating mode linearity light adjusting toning circuit |
| CN108712803A (en) * | 2018-07-13 | 2018-10-26 | 贵派电器股份有限公司 | Sufficient power LED sectional dimming toning driving power and its control method |
| CN108712803B (en) * | 2018-07-13 | 2023-09-29 | 贵派电器股份有限公司 | Full-power LED (light-emitting diode) sectional dimming and color-mixing driving power supply and control method thereof |
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