CN106793344A - The linear constant current driving power supply and LED light emission device of a kind of compatible toning of controllable silicon light modulation - Google Patents
The linear constant current driving power supply and LED light emission device of a kind of compatible toning of controllable silicon light modulation Download PDFInfo
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- CN106793344A CN106793344A CN201710090798.7A CN201710090798A CN106793344A CN 106793344 A CN106793344 A CN 106793344A CN 201710090798 A CN201710090798 A CN 201710090798A CN 106793344 A CN106793344 A CN 106793344A
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- constant current
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
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Abstract
The linear constant current driving power supply and LED light emission device of a kind of compatible toning of controllable silicon light modulation, including：Rectification unit (100), for the alternating current of external power source to be converted into direct current；Leakage current control unit (200), is connected with the output end of rectification unit, the maintenance electric current required for for controlling controllable silicon dimmer；Warm white constant-current control unit (300), is connected with leakage current control unit, the electric current for controlling warm white LED lamp string；Positive white light constant-current control unit (400), it is connected with leakage current control unit and warm white constant-current control unit, positive white LED lamp string in positive white light constant-current control unit is in parallel with the warm white constant-current control unit, operating voltage of the operating voltage of warm white LED lamp string less than positive white LED lamp string, positive white light constant-current control unit (400) is for controlling the total current of positive white LED lamp string and warm white LED lamp string, present system framework simplifies easy-to-use, and thyristor regulating photoreduction process has reached the compatible toning effect of light modulation.
Description
Technical field
Linear constant current the present invention relates to field of LED drive, more particularly to a kind of compatible toning of controllable silicon light modulation drives electricity
Source and LED light emission device.
Background technology
LED as a kind of new type light source, because it possess that brightness is strong, energy consumption is low and long lifespan advantage be widely used in
Every field.Because LED has fixed forward conduction voltage, total forward conduction voltage of whole LED string is only reached
When, LED string could light.In order to ensure that LED string can work, it is necessary to carry out current constant control to it normal table, pass
The linear constant current driving power supply of the compatible toning of the controllable silicon light modulation of system, system architecture is complicated, the periphery unit required for application circuit
Device is more.
The content of the invention
The technical problem to be solved in the present invention is, for the defect that the said system framework of prior art is complicated, there is provided
A kind of framework has the linear constant current driving power supply and LED light emission device for simplifying the compatible toning of easy-to-use controllable silicon light modulation.
The technical solution adopted for the present invention to solve the technical problems is：Construct a kind of line of the compatible toning of controllable silicon light modulation
Property constant-current driving power supply, including：
Rectification unit, for the alternating current of external power source to be converted into direct current；
Leakage current control unit, is connected with the output end of rectification unit, required for for controlling controllable silicon dimmer
Maintain electric current；
Warm white constant-current control unit, is connected with leakage current control unit, the electricity for controlling warm white LED lamp string
Stream；
Positive white light constant-current control unit, is connected, just in vain with leakage current control unit and warm white constant-current control unit
Positive white LED lamp string in light constant-current control unit is in parallel with warm white constant-current control unit, the work electricity of warm white LED lamp string
, less than the operating voltage of positive white LED lamp string, the positive white light constant-current control unit is for controlling positive white LED lamp string and warming up for pressure
The total current of white LED lamp string.
In the linear constant current driving power supply of the compatible toning of controllable silicon light modulation of the present invention, the positive white light constant current control
Unit processed includes：Positive white LED lamp string, the first constant current chip, first resistor, second resistance, filter capacitor and 3rd resistor,
3rd resistor is in parallel with filter capacitor, and the positive pole of positive white LED lamp string connects the positive pole of filter capacitor, positive white light
The negative pole of the negative pole connection filter capacitor of LED string and two constant current output ports of the first constant current chip, the first constant current core
First constant current of piece is set port and is set port and connect by second resistance by first resistor welding system ground and second constant current
Systematically, the two output ground port welding system ground of the first constant current chip.
In the linear constant current driving power supply of the compatible toning of controllable silicon light modulation of the present invention, the warm white constant current control
Unit processed includes：Warm white LED lamp string, the second constant current chip and the 4th resistance,
The positive pole of warm white LED lamp string connects the positive pole of the positive white LED lamp string, and the negative pole of warm white LED lamp string connects
The constant current output port of the second constant current chip is connect, the constant current of the second constant current chip sets port via the perseverance of the 4th resistance connection second
The output ground port of chip is flowed, the output ground port of the second constant current chip connects two constant current output ends of the first constant current chip
Mouthful.
In the linear constant current driving power supply of the compatible toning of controllable silicon light modulation of the present invention, the leakage current control
Unit includes：5th resistance, the 6th resistance, the 3rd constant current chip, isolating diode,
The positive pole of isolating diode connects the positive output end of rectification unit, and the negative pole of isolating diode connects positive white light LEDs
The positive pole of lamp string and the positive pole of warm white LED lamp string, the constant current output port of the 3rd constant current chip connect whole via the 6th resistance
The positive output end of unit is flowed, the output ground port welding system ground of the 3rd constant current chip, the constant current of the 3rd constant current chip sets port
First constant current for connecting the first constant current chip via the 5th resistance sets port.
In the linear constant current driving power supply of the compatible toning of controllable silicon light modulation of the present invention, the rectification unit includes
Resistance and rectifier bridge are insured in coiling, and the positive input terminal of rectifier bridge insures resistance via the coiling and controllable silicon dimmer is connected
Civil power live wire, the negative input end connection civil power zero line of rectifier bridge, the positive output end of rectifier bridge connects the positive pole of isolating diode, whole
Flow bridge negative output terminal as it is described systematically.
The invention also discloses a kind of LED light emission device, including the described compatible linear constant current mixed colours of controllable silicon light modulation
Driving power supply.
Implement the linear constant current driving power supply of the compatible toning of controllable silicon light modulation of the invention, have the advantages that：This
Warm white constant-current control unit can voluntarily control the electric current of warm white LED lamp string in invention, in positive white light constant-current control unit
Positive white LED lamp string is in parallel with warm white constant-current control unit, and based on this, positive white light constant-current control unit is used to control positive white light
The total current of LED string and warm white LED lamp string, system architecture of the invention simplifies easy-to-use, when the light modulation of controllable silicon dimmer
Knob is higher by the magnitude of voltage after rectification unit in high angle, and positive white LED lamp string and warm white LED lamp string are all normal
Luminous, now colour temperature is the mixing of two lamp strings；When the light-control knob of controllable silicon dimmer is in low angle, by after rectification unit
Magnitude of voltage it is relatively low, positive white LED lamp string can not reach the normal luminous brightness of maximum current, and warm white constant-current control unit can
With normal work, warm white LED lamp string can reach normal luminous value or luminous value more than positive white light constant-current control unit
Positive white LED lamp string, now colour temperature state is leading with warm white LED lamp string, and colour temperature is warmed up partially, therefore thyristor regulating of the invention
Photoreduction process has reached the compatible toning effect of light modulation.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Inventive embodiment, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings：
Fig. 1 is the structural representation of the preferred embodiment of the linear constant current driving power supply of the compatible toning of controllable silicon light modulation of the present invention
Figure.
Specific embodiment
In order to be better understood from technical scheme, below in conjunction with Figure of description and specific embodiment
It is described in detail, it should be understood that the specific features in the embodiment of the present invention and embodiment are to technical scheme
Detailed description, rather than the restriction to technical scheme, in the case where not conflicting, the embodiment of the present invention and implementation
Technical characteristic in example can be mutually combined.
It is the knot of the preferred embodiment of the linear constant current driving power supply of the compatible toning of controllable silicon light modulation of the present invention with reference to Fig. 1
Structure schematic diagram.
The linear constant current driving power supply of the compatible toning of controllable silicon light modulation of the invention includes：
Rectification unit 100, for the alternating current of external power source to be converted into direct current；
Leakage current control unit 200, is connected with the output end of rectification unit, required for for controlling controllable silicon dimmer
Maintenance electric current；
Warm white constant-current control unit 300, is connected with leakage current control unit, for controlling warm white LED lamp string
Electric current；
Positive white light constant-current control unit 400, with leakage current control unit 200 and warm white constant-current control unit 300
Connection, the positive white LED lamp string in positive white light constant-current control unit 400 is in parallel with warm white constant-current control unit 300, warm white
, less than the operating voltage of positive white LED lamp string, the positive white light constant-current control unit 400 is for controlling for the operating voltage of LED string
Make the total current of positive white LED lamp string and warm white LED lamp string.
In preferred embodiment, the positive white light constant-current control unit 400 includes：Positive white LED lamp string LED B1-Bn, the
One constant current chip U1, first resistor R1, second resistance R2, filter capacitor E1 and 3rd resistor R3,3rd resistor R3 are put for one
Resistance；The warm white constant-current control unit 300 includes：Warm white LED lamp string LED A1-An, the second constant current chip U2 and
4th resistance R4；The leakage current control unit 200 includes：5th resistance R5, the 6th resistance R6, the 3rd constant current chip U3,
Isolating diode D1；The rectification unit 100 includes that resistance FR1 and rectifier bridge DB1 is insured in coiling, and coiling insurance resistance FR1 rises
To the protective effect of whole circuit.
Specifically, the positive input terminal of rectifier bridge DB1 insures resistance FR1 via the coiling and controllable silicon dimmer is connected
Civil power live wire, the negative input end connection civil power zero line of rectifier bridge DB1, the negative output terminal of rectifier bridge DB1 as it is described systematically, it is whole
The positive pole of the positive output end connection isolating diode D1 of stream bridge DB1, the negative pole of isolating diode D1 connect positive white LED lamp string and
The positive pole of warm white LED lamp string, the constant current output port (i.e. OUT terminal mouthful) of the 3rd constant current chip U3 connects via the 6th resistance R6
The positive output end of rectifier bridge DB1, output ground port (i.e. GND ports) welding system ground of the 3rd constant current chip U3, the 3rd constant current core
The constant current of piece U3 sets port (i.e. REXT ports) and is set via first constant current that the 5th resistance R5 connects the first constant current chip U1
Put port (i.e. REXT1 ports).
3rd resistor R3 is in parallel with filter capacitor E1, the positive pole of the positive pole connection filter capacitor E1 of positive white LED lamp string, just
The negative pole of the negative pole connection filter capacitor E1 of white LED lamp string and two constant current output ports of the first constant current chip U1, i.e.,
OUT1 ports and OUT2 ports, first constant current of the first constant current chip U1 set port (i.e. REXT1 ports) by the first electricity
Hinder R1 welding systems ground and second constant current sets port (i.e. REXT2 ports) by second resistance R2 welding systems ground, the first constant current
Two output ground port (i.e. GND1 ports and GND2 ports) welding system ground of chip U1.
The positive pole of warm white LED lamp string connects the positive pole of the positive white LED lamp string, and the negative pole of warm white LED lamp string connects
The constant current output port (i.e. OUT terminal mouthful) of the second constant current chip U2 is connect, the constant current of the second constant current chip U2 sets port (i.e. REXT
Port) via output ground port (i.e. GND ports) of the second constant current chip U2 of the 4th resistance R4 connections, the second constant current chip U2's
Output ground port connects two constant current output ports of the first constant current chip U1, i.e. OUT1 and OUT2 ports.
The invention also discloses a kind of LED light emission device, including the described compatible linear constant current mixed colours of controllable silicon light modulation
Driving power supply.
Operation principle of the invention is illustrated below.
Positive white LED lamp string inside positive white light constant-current control unit 400 is the lamp string of 6000K colour temperatures, warm white constant current
Warm white LED lamp string inside control unit 300 is the lamp string of 3000K colour temperatures.
Maintenance electric current required for the control controllable silicon dimmer of leakage current control unit 200, leakage current size is：
I1=U3rext/(R5+R1)
Wherein, U3rext is the reference voltage of the 3rd constant current chip U3, and R5, R1 are the 5th resistance R5 and first resistor R1
Resistance value；
The control electric current size of the first constant current chip U1 is：
I2=U1rext1/R1+U1rext2/R2
The control electric current size of the second constant current chip U2 is：
I3=U2rext/R4
Wherein, U1rext1 and U1rext2 are the benchmark of the REXT2 ports of the REXT1 ports and U1 of the first constant current chip U1
Voltage, R1 and R2 are the resistance value of first resistor R1 and second resistance R2；U2rext is the REXT ports of the second constant current chip U2
Reference voltage, R4 is the resistance value of the 4th resistance R4.
Because the second constant current chip U2 connects with warm white LED lamp string, therefore the electric current of warm white LED lamp string is I3.The
The control electric current of two constant current chip U2 flows into OUT1 the and OUT2 ports of the first constant current chip U1.Warm white constant-current control unit
300 can be regarded as an entirety, and it is parallel relationship with the positive white LED lamp string inside positive white light constant-current control unit 400, because
The electric current of this positive white LED lamp string is：
I4=I2-I3=U1text1/R1+U1rext2/R2-U2rext/R4
Due to the magnitude of voltage of the magnitude of voltage less than positive white LED lamp string of warm white LED lamp string.When the tune of controllable silicon dimmer
Light knob is in high angle, and AC-input voltage is higher by the magnitude of voltage after rectification unit, when this magnitude of voltage is higher than positive white light
During LED string, positive white LED lamp string and warm white LED lamp string all normal luminous, now colour temperature is the mixing of two lamp strings, just in vain
Light LED colour contamination temperature 6000K, warm white LED lamp string is 3000K, mixing colour temperature about 4500K.
When the light-control knob of controllable silicon dimmer is in low angle, AC-input voltage is by the magnitude of voltage after rectification unit
Less than the magnitude of voltage of positive white LED lamp string, positive white light LEDs can not reach the normal luminous brightness of maximum current.Because warm white
The voltage value of LED string is lower than positive white LED lamp string, therefore warm white constant-current control unit can be warmed up with normal work
White LED lamp string can reach the positive white LED lamp string of normal luminous value or luminous value more than positive white light constant-current control unit,
Now colour temperature state is leading with warm white LED lamp string, and colour temperature is warmed up partially.
It can be seen that, during controllable silicon light modulation, when controllable silicon light modulation reaches high brightness, LED lamp lights system
Colour temperature be about the mixed light state of 4500K, when controllable silicon light modulation reaches low-light level, the luminous colour temperature deflection of LED lamp
The state of warm light.Thyristor regulating photoreduction process has reached the function embodiment of the compatible toning of light modulation.
In sum, implement the linear constant current driving power supply of the compatible toning of controllable silicon light modulation of the invention, have with following
Beneficial effect：Warm white constant-current control unit can voluntarily control the electric current of warm white LED lamp string, positive white light current constant control in the present invention
Positive white LED lamp string in unit is in parallel with warm white constant-current control unit, and based on this, positive white light constant-current control unit is used to control
The total current of positive white LED lamp string and warm white LED lamp string is made, system architecture of the invention simplifies easy-to-use, controllable silicon light modulation mistake
Journey has reached the compatible toning effect of light modulation.
Embodiments of the invention are described above in conjunction with accompanying drawing, but the invention is not limited in above-mentioned specific
Implementation method, above-mentioned specific embodiment is only schematical, rather than restricted, one of ordinary skill in the art
Under enlightenment of the invention, in the case of present inventive concept and scope of the claimed protection is not departed from, can also make a lot
Form, these are belonged within protection of the invention.
Claims (6)
1. the linear constant current driving power supply that a kind of controllable silicon light modulation compatibility is mixed colours, it is characterised in that including：
Rectification unit (100), for the alternating current of external power source to be converted into direct current；
Leakage current control unit (200), is connected with the output end of rectification unit, required for for controlling controllable silicon dimmer
Maintain electric current；
Warm white constant-current control unit (300), is connected with leakage current control unit, the electricity for controlling warm white LED lamp string
Stream；
Positive white light constant-current control unit (400), with leakage current control unit (200) and warm white constant-current control unit
(300) connect, positive white LED lamp string in positive white light constant-current control unit (400) and warm white constant-current control unit (300) and
Connection, the operating voltage of the operating voltage less than positive white LED lamp string of warm white LED lamp string, the positive white light constant-current control unit
(400) for controlling the total current of positive white LED lamp string and warm white LED lamp string.
2. the linear constant current driving power supply that controllable silicon light modulation compatibility according to claim 1 is mixed colours, it is characterised in that described
Positive white light constant-current control unit (400) includes：Positive white LED lamp string, the first constant current chip (U1), first resistor (R1), second
Resistance (R2), filter capacitor (E1) and 3rd resistor (R3),
3rd resistor (R3) is in parallel with filter capacitor (E1), the positive pole of positive pole connection filter capacitor (E1) of positive white LED lamp string,
The negative pole of negative pole connection filter capacitor (E1) of positive white LED lamp string and two constant current output ends of the first constant current chip (U1)
Mouthful, first constant current of the first constant current chip (U1) is set port and is set by first resistor (R1) welding system ground and second constant current
Port is put by second resistance (R2) welding system ground, the two output ground port welding system ground of the first constant current chip (U1).
3. the linear constant current driving power supply that controllable silicon light modulation compatibility according to claim 2 is mixed colours, it is characterised in that described
Warm white constant-current control unit (300) includes：Warm white LED lamp string, the second constant current chip (U2) and the 4th resistance (R4),
The positive pole of warm white LED lamp string connects the positive pole of the positive white LED lamp string, the negative pole connection of warm white LED lamp string the
The constant current output port of two constant current chips (U2), the constant current of the second constant current chip (U2) sets port and connects via the 4th resistance (R4)
The output ground port of the second constant current chip (U2) is connect, the output ground port of the second constant current chip (U2) connects the first constant current chip
(U1) two constant current output ports.
4. the linear constant current driving power supply that controllable silicon light modulation compatibility according to claim 2 is mixed colours, it is characterised in that described
Leakage current control unit (200) includes：5th resistance (R5), the 6th resistance (R6), the 3rd constant current chip (U3), two poles of isolation
Pipe (D1),
The positive output end of positive pole connection rectification unit (100) of isolating diode (D1), the negative pole connection of isolating diode (D1)
The positive pole of positive white LED lamp string and the positive pole of warm white LED lamp string, the constant current output port of the 3rd constant current chip (U3) is via the
The positive output end of six resistance (R6) connection rectification unit (100), the output ground port welding system ground of the 3rd constant current chip (U3), the
The constant current of three constant current chips (U3) sets first constant current that port connects the first constant current chip (U1) via the 5th resistance (R5)
Port is set.
5. the linear constant current driving power supply that controllable silicon light modulation compatibility according to claim 4 is mixed colours, it is characterised in that described
Rectification unit (100) insures resistance (FR1) and rectifier bridge (DB1) including coiling, and the positive input terminal of rectifier bridge (DB1) is via described
Resistance (FR1) and controllable silicon dimmer connection civil power live wire, negative input end connection city's electrical zero of rectifier bridge (DB1) are insured in coiling
Line, the positive pole of positive output end connection isolating diode (D1) of rectifier bridge (DB1), the negative output terminal of rectifier bridge (DB1) is used as institute
State systematically.
6. a kind of LED light emission device, it is characterised in that compatible including the controllable silicon light modulation as described in claim any one of 1-5
The linear constant current driving power supply of toning.
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|---|---|---|---|
| CN201710090798.7A CN106793344A (en) | 2017-02-20 | 2017-02-20 | The linear constant current driving power supply and LED light emission device of a kind of compatible toning of controllable silicon light modulation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710090798.7A CN106793344A (en) | 2017-02-20 | 2017-02-20 | The linear constant current driving power supply and LED light emission device of a kind of compatible toning of controllable silicon light modulation |
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| CN107333360A (en) * | 2017-08-17 | 2017-11-07 | 龚备文 | A kind of double-colored control LED circuit |
| CN107620908A (en) * | 2017-08-28 | 2018-01-23 | 欧普照明股份有限公司 | High voltage and constant current chip and constant-current supply |
| CN108419329A (en) * | 2018-01-31 | 2018-08-17 | 佛山冠今光电科技有限公司 | LED light light-dimming method, light modulation module and lamps and lanterns |
| CN110519902A (en) * | 2019-10-09 | 2019-11-29 | 厦门阳光恩耐照明有限公司 | A kind of Wireless Light modulating ager |
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| CN108419329A (en) * | 2018-01-31 | 2018-08-17 | 佛山冠今光电科技有限公司 | LED light light-dimming method, light modulation module and lamps and lanterns |
| CN110519902A (en) * | 2019-10-09 | 2019-11-29 | 厦门阳光恩耐照明有限公司 | A kind of Wireless Light modulating ager |
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Application publication date: 20170531 |
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| RJ01 | Rejection of invention patent application after publication |