CN106560643A - Single-port adjustable color temperature LED module and color temperature adjusting method - Google Patents
Single-port adjustable color temperature LED module and color temperature adjusting method Download PDFInfo
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- CN106560643A CN106560643A CN201610612073.5A CN201610612073A CN106560643A CN 106560643 A CN106560643 A CN 106560643A CN 201610612073 A CN201610612073 A CN 201610612073A CN 106560643 A CN106560643 A CN 106560643A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
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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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- General Engineering & Computer Science (AREA)
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- Optics & Photonics (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
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Abstract
A single-port adjustable color temperature LED module is provided only one pair of binding posts (V+, V-) so as to import a drive power source, and comprises a substrate and LED chips A group and B group carried by the substrate; the chip A group comprises at least one string of LED chips, wherein each string has k1 LED chips; if the chip A group comprises two or more strings of LED chips, the strings of chips are mutually connected in parallel; a safety unit for overcurrent protection is arranged in the chip A group so as to ensure current passing each string of LED chips cannot exceed an admissible value or fixed at said value; the chip B group also comprises at least one string of LED chips, each string comprises k2 LED chips connected in series, wherein k2 is bigger than k1; if the chip B group comprises two or more strings of LED chips, the strings of LED chips are mutually connected in parallel; the chip A group and the chip B group are mutually connected in parallel; the common binding posts (V+, V-) are employed so as to import the same drive power source; the single port can realize the adjustable color temperature LED module, thus saving port resources.
Description
【Technical field】
The present invention relates to the electronic devices and components that quasiconductor is integrated with encapsulation, can more particularly to send one or more
The LED components and parts of spectrum and its manufacture method, more particularly to a kind of LED component of adjustable color temperature and the LED colors using the device
Warm control method.
【Background technology】
In prior art, LED light device because with using low-tension supply, power consumption less, strong adaptability, stability strong, response when
Between short, environmentally safe, it is multicolor luminous the advantages of and be widely applied in various light fixtures, general LED light source device is luminous
Colour temperature is single, can not regulate and control, it is difficult to meet the difference requirement of different places, different users, different periods to light colour temperature.
The light sent by most of lighting source is all commonly referred to as white light, and the color and black matrix of source emissioning light is in a certain temperature
Simultaneously, the temperature of black matrix is referred to as the colour temperature of the light source to lower radiant light form and aspect, with absolute temperature K (Kelvin, or Kelvin) is called
Unit (K=DEG C+273.15).Therefore, about 527 DEG C of i.e. 800K of temperature when black matrix is heated to taking on a red color, its temperature affect light complexion changed
Change.
In prior art, adjustable color temperature illumination is arisen at the historic moment and has become a kind of illumination trend, adjustable color temperature illumination
Design depends on adjustable color temperature light source；In prior art, the colour temperature of LED is adjusted typically by regulation different colours
Light intensity combination adjusting the colour temperature of overall output.
Adjustable color temperature light source of the prior art mostly is two groups of LED chips, a kind of colour temperature of every group of chip；Two groups of LED
Chip altogether negative pole connection, forms the adjustable color module at three ends, or each own positive pole of every group of chip and negative pole have four terminals
Adjustable color module.
【The content of the invention】
It is an object of the invention in place of avoiding above-mentioned the deficiencies in the prior art, and propose a kind of LED of single port adjustable color temperature
Module.
It is a kind of LED module of single port adjustable color temperature that the present invention solves the technical scheme of the technical problem employing, only
A pair of terminals is set（V+、V-）Driving power supply is introduced, including：Substrate and carry LED chip A group thereon and LED core
Piece B groups；The chip A groups include at least a string of LED chips, the LED chip of often going here and there be connected in series by k1 piece of LED chip and
Into；If chip A groups include two strings or two string above LED chips, each serial core piece is connected in parallel mutually；The chip A groups
The safe unit of protection overcurrent is provided with circuit, to ensure the electric current for flowing through each string LED chip less than feasible value, and
And when the voltage for putting on each string LED chip is enough, current constant therein is maintained to flow through in feasible value；The chip
B groups also include at least a string of LED chips, and the LED chip of often going here and there is connected in series by k2 piece of LED chip, the k2 and k1
Natural number is, and k2 is more than k1；If the chip B groups include two strings or two string above LED chips, LED core is respectively gone here and there
Piece is also connected in parallel mutually；The chip A groups are parallel with one another again with chip B groups, by common binding post（V+、V-）Introduce
Same driving power supply.
Described LED module also includes LED chip C group, and the chip C groups still at least include a string of LED chips, often go here and there
LED chip is connected in series by k3 piece of LED chip, and the k3 is also natural number, and k3 is more than k2；The chip C groups
If including two strings or two string above LED chips, LED chip of respectively going here and there also is connected in parallel mutually；But now described chip A, B two
The safe unit of protection overcurrent must be respectively provided with group circuit, to ensure the electric current for flowing through each string LED chip less than appearance
Perhaps be worth, and when the voltage for putting on each string LED chip is enough, current constant therein is maintained to flow through in feasible value；
The chip C groups are parallel with one another again with two groups of chip A, B, and by common binding post（V+、V-）Introduce same driving electricity
Source.
The safe unit of protection overcurrent is respectively arranged with two groups of circuits of described chip A, B, is quasiconductor constant current device；
Respectively the quasiconductor constant current device is connected in each LED chip string of the chip A groups and B groups respectively, or by the core
Each each total again after the parallel connection respectively quasiconductor constant current device of series connection respectively of the LED chip string in two groups of circuits of piece A, B.
The quasiconductor constant current device is both-end constant current device；The both-end constant current device passes through Vp ends and Vn ends and LED
Chip-in series；Or the quasiconductor constant current device is three end constant current devices；Three end constant current device include Vdd terminal, Vp ends and
Vn ends；The both-end constant current device passes through Vp ends and Vn ends are connected with LED chip, the LED chip in Vdd terminal and LED chip string
Positive pole is electrically connected.
It is when the quasiconductor constant current device is connected in each LED chip string of the chip A groups and B groups respectively, described
The LED chip negative pole connection of most end, the Vn ends of three end constant current device in the Vp ends of three end constant current devices and LED chip string
It is connected with the negative pole of the LED module binding post of single port adjustable color temperature, Vdd terminal and the most end of three end constant current device
The positive pole connection of LED chip, or the positive pole of the Vdd terminal of three end constant current device and other LED chips in the string LED chip
Connection.
The chip A groups and the LED chip that the LED chip of the chip B groups is different spectrum or colour gamut.
The chip A groups and B groups are coated with the fluorescent glue of corresponding colour temperature.The chip A groups include a string of LED chips, institute
Chip B groups are stated including two string LED chips；The chip A groups and the chip B groups, are integrally rendered as circular arrangement on substrate；
The LED chip of the chip A groups, positioned at circular centre position, two string LED chips of the chip B groups, respectively positioned at the core
The both sides of the LED chip of piece A groups.
The present invention solves the technical scheme of the technical problem employing and can also be a kind of using the single port color-adjustable
The LED color temperature adjusting methods of the LED module of temperature, including step：Step A1：The binding post is adjusted in zero load（V+、V-）
Forward voltage of the voltage of the driving power supply of introducing more than B group chips, adjusts the size of current of driving power supply, makes driving power supply
Electric current can allow chip A groups to be lighted, and chip B groups are not lighted；The chip A groups being more than due to the LED chip quantity of chip B groups
LED chip quantity, therefore the forward voltage of chip B groups is necessarily more than chip A group forward voltages；Step A2：In the base of step A1
On plinth, by the binding post（V+、V-）The driving power supply of introducing is carried in the chip A groups and the chip B groups, gradually
The electric current of the chip A groups is flow through in increase, and with the increase of electric current, the forward voltage of LED chip can also be increased slightly, now institute
State binding post（V+、V-）The voltage at two ends can rise with the increase of electric current but less than the threshold voltage of B group chips, described
The output of chip A groups increases, and only A groups are lighted；Step A3：Continue increase on the basis of step A2 and flow through the chip
The electric current of A groups so that the electric current that A group chips flow through reaches specified constant current value, is further continued for increasing the binding post（V+、V-）Draw
The electric current for entering, due to the presence of constant current device, flows through the electric current of A groups by current limliting, and the forward voltage of constant current device can be raised, described
Binding post（V+、V-）The voltage at two ends and then can be raised；When the binding post（V+、V-）The voltage at two ends is increased to and is more than
During the threshold voltage of B groups, B groups start to light；As electric current further increases, the electric current that B groups flow through is also increased as, so as to adjust
The overall colour temperature of the whole LED module.
The LED color temperature adjusting methods of the LED module of the single port adjustable color temperature, including step：Step C1：In zero load
Adjust the binding post（V+、V-）Forward voltage of the voltage of the driving power supply of introducing more than C group chips, adjusts driving power supply
Size of current, allow the electric current of driving power supply to allow so that chip A groups and chip B groups are lighted, chip C groups are not lighted；Due to
Chip A groups and the LED chip quantity of chip B groups that the LED chip quantity of chip C groups is more than, therefore the forward voltage of chip C groups
Certain forward voltage for being more than chip A groups and chip B groups；Step C2：On the basis of step C1, by the binding post（V+、
V-）The driving power supply of introducing is carried in the chip A groups, the chip B groups and the chip C groups, is gradually increased and is flow through institute
The electric current of chip A groups and the chip B groups is stated, with the increase of electric current, the forward voltage of LED chip can also be increased slightly, this
Shi Suoshu binding posts（V+、V-）The voltage at two ends can rise with the increase of electric current but less than the threshold voltage of C group chips,
The output of the chip A groups and the chip B groups increases, and the chip A groups and the chip B are lighted；Step C3：In step
On the basis of rapid C2, continue to increase the electric current for flowing through the chip A groups and chip B groups so that chip A groups and chip B groups flow through
Electric current reach specified constant current value, be further continued for increasing the binding post（V+、V-）The electric current of introducing, due to depositing for constant current device
, the electric current of chip A groups and chip B groups is flow through by current limliting, the forward voltage of constant current device can be raised, the binding post（V+、
V-）The voltage at two ends and then can be raised；When the binding post（V+、V-）The voltage at two ends is increased to the threshold electricity more than C groups
During pressure, C groups start to light；As electric current further increases, the electric current that C groups flow through is also increased as, so as to adjust the LED moulds
The overall colour temperature of block.
Compared with the existing technology compared with the beneficial effect of the present invention is：Using the power input of single port, by adjusting electricity
Stream causes the mutual collaborative works of LED of different groups；Only with single port, and the colour temperature of every group of chip can with it is identical can not also
Together, collocation can be combined according to the demand of glow color flexibly.
【Description of the drawings】
Fig. 1 is the electrical schematic diagram of one of the LED module preferred embodiment of single port adjustable color temperature of the present invention；
Fig. 2 is the electrical schematic diagram of the two of the LED module preferred embodiment of single port adjustable color temperature of the present invention；
Fig. 3 is the electrical schematic diagram of the three of the LED module preferred embodiment of single port adjustable color temperature of the present invention；
Fig. 4 is the electrical schematic diagram of the four of the LED module preferred embodiment of single port adjustable color temperature of the present invention；
Fig. 5 is the electrical schematic diagram of the five of the LED module preferred embodiment of single port adjustable color temperature of the present invention；
Fig. 6 is the electrical schematic diagram of the six of the LED module preferred embodiment of single port adjustable color temperature of the present invention；
Fig. 7 is the electrical schematic diagram of the seven of the LED module preferred embodiment of single port adjustable color temperature of the present invention；
Fig. 8 is the electrical schematic diagram of the eight of the LED module preferred embodiment of single port adjustable color temperature of the present invention；
Fig. 9 is the electrical schematic diagram of the nine of the LED module preferred embodiment of single port adjustable color temperature of the present invention；
Figure 10 is the electrical schematic diagram of the ten of the LED module preferred embodiment of single port adjustable color temperature of the present invention；
Figure 11 is the electrical schematic diagram of the 11 of the LED module preferred embodiment of single port adjustable color temperature of the present invention；
Figure 12 is that the circuit of the eight of the LED module preferred embodiment of single port adjustable color temperature of the present invention prints domain；
Figure 13 be the present invention be preferable to carry out middle setting both-end protection overcurrent the i.e. quasiconductor constant current device of safe unit etc.
Effect circuit diagram and its voltage-current curve；
Figure 14 be the present invention be preferable to carry out middle setting three ends protection overcurrent the i.e. quasiconductor constant current device of safe unit etc.
Effect circuit diagram and its voltage-current curve.
【Specific embodiment】
The present invention is described in further detail with reference to each accompanying drawing.
In a kind of electrical schematic diagram of the LED module specific embodiment of single port adjustable color temperature as shown in Figure 1, only it is provided with
A pair of terminals（V+、V-）For introducing driving power supply；The LED module includes substrate and carrying LED chip A group thereon
110 and LED chip B group 120, substrate not shown in figure；The chip A groups include a string of LED chips, and the string LED chip is by k1
Piece LED chip is connected in series；The safe unit 115 of protection overcurrent is provided with the chip A group circuits, to ensure
The electric current of LED chip is flowed through less than feasible value, and when the voltage for putting on each string LED chip is enough, keeps stream
Jing current constants therein are in feasible value；The chip B groups also include a string of LED chips, often go here and there the LED chip by k2 piece
LED chip is connected in series, and the k2 and k1 is natural number, and k2 is more than k1；K2 is equal to equal to five, k1 in FIG
Four, these quantity can be to be configured as needed and adjust certainly；The chip A groups are parallel with one another again with chip B groups,
By common binding post（V+、V-）Introduce same driving power supply.Safe unit 115 in FIG is three port quasiconductors
Constant current device；The three ends constant current device includes Vdd terminal, Vp ends and Vn ends, in the Vp ends and LED chip string of the three ends constant current device
The LED chip negative pole connection of most end, the Vn ends of three end constant current device and the LED module terminals of single port adjustable color temperature
The negative pole connection of son, the Vdd terminal of three end constant current device are connected with the positive pole of the LED chip of most end.Certain three end
The Vdd terminal of constant current device can also be connected with the positive pole of other LED chips in the string LED chip.
In the embodiment shown in Figure 2, LED chip A group 210 and LED chip B group 220, institute are provided with the LED module
State the safe unit 215 that protection overcurrent is provided with chip A groups 210；The difference of the embodiment shown in the embodiment and Fig. 1 of Fig. 2
Different is the method for attachment difference of the safe unit for protecting overcurrent；Although safe unit in fig. 2 215 is partly led for three ports
Body constant current device；After the three ends constant current device includes Vdd terminal, Vp ends and Vn ends, its Vdd terminal and Vp ends short circuit, the three ends constant current
Devices in series in the chip string of LED chip A group 210, the LED module of the three ends constant current device Vn ends and single port adjustable color temperature
The negative pole connection of binding post.Three end constant current devices i.e. in the embodiment of fig. 2 are equivalent to both-end constant current device.
From binding post（V+、V-）For introducing the current adjustment of the floating voltage more than B group forward voltages of driving power supply
Constant current source；The group work of LED chip A, LED chip B group is made not to work by the adjustment of electric current, i.e. the LED points of LED chip A group
Bright, the LED of LED chip B group is not lighted, and so by adjusting size of current of the source current adjustment by LED chip A group, is adjusted
Whole output, reaches A group output lights and leads to adjustable.
Source current continues to increase so that the binding post（V+、V-）When the voltage at two ends is more than B group threshold voltages,
The group work of LED chip A, LED chip B group can be made also to work；Also limited by safe unit current limliting simultaneously and flow through the chip A
The size of current of group, the proportionate relationship of the power of output and the chip A groups by adjusting the chip B groups, so as to
Realize the adjustment of the overall colour temperature of the LED module.
The running voltage of each string LED chip in per group, equal to the running voltage sum of each LED chip, LED chip B group
In each string LED chip quantity K2 more than quantity K1 of each string LED chip in LED chip A group, adjust input current, it becomes possible to
Adjust output colour temperature.
In embodiment as shown in Figure 3, LED chip A group 310, LED chip B group 320 and the chip A groups are provided with
The safe unit 315 of overcurrent is protected in circuit；In the LED chip B group 320 of Fig. 3, two string LED chips are provided with, it is each to go here and there
Quantity k2 of LED chip is equal to six, and LED chip quantity k1 connected in LED chip A group is equal to five.
In embodiment as shown in Figure 4, LED chip A group 330, LED chip B group 340 and the chip A groups are provided with
The safe unit 335 of overcurrent is protected in circuit；In the LED chip B group 340 of Fig. 4, two string LED chips are provided with, it is each to go here and there
Quantity k2 of LED chip is equal to six, and LED chip quantity k1 connected in LED chip A group is equal to five.The difference of Fig. 3 and Fig. 4 exists
The position set by safe unit in protection overcurrent is different；The safe unit in safe unit 315 and Fig. 4 in figure 3
335 are three port quasiconductor constant current devices；Respectively the three ends constant current device includes Vdd terminal, Vp ends and Vn ends, respectively the three ends constant current
It is connected in respective LED chip A group after the Vdd terminal and Vp ends short circuit of device；Three end constant current device Vn ends in figure 3 and list
The negative pole connection of the LED module binding post of port adjustable color temperature；Three end constant current device Vdd terminals in the diagram and Vp ends short circuit
It is connected with the positive pole of the LED module binding post of single port adjustable color temperature afterwards.Each safe unit in various embodiments can be with
According to the actual requirements, it is connected on different positions, it might even be possible to be connected on the centre position of each LED chip string, specifically
Connected mode is flexibly changed and is combined according to actual port.
In embodiment as shown in Figure 5, LED chip A group 410, LED chip B group 420 and the chip A groups are provided with
The safe unit 415 of overcurrent is protected in circuit；Four string LED chips are provided with the LED chip B group 420 of Fig. 5, LED is respectively gone here and there
Quantity k2 of chip is equal to six, and two string LED chips are provided with LED chip A group 410, and each string LED chip quantity k1 is equal to five.
In embodiment as shown in Figure 6, LED chip A group 510, LED chip B group 520 and the chip A groups are provided with
In circuit protect overcurrent two safe units (515,516)；Four string LED cores are provided with the LED chip B group 520 of Fig. 6
Piece, quantity k2 of each string LED chip are equal to six；Four string LED chips are provided with the LED chip A group 510 of Fig. 6, LED is respectively gone here and there
Number of chips k1 is equal to five；Be provided with four string LED chips in the LED chip A group 510 of Fig. 6, after four string LED chips parallel connections with
Two safe units in parallel (515,516) connect.
In embodiment as shown in Figure 7, LED chip A group 530, LED chip B group 540 and the chip A groups are provided with
In circuit protect overcurrent two safe units (535,536)；Four string LED cores are provided with the LED chip B group 540 of Fig. 7
Piece, quantity k2 of each string LED chip are equal to six；Four string LED chips are provided with the LED chip A group 530 of Fig. 7, LED is respectively gone here and there
Number of chips k1 is equal to five；Be provided with four string LED chips in the LED chip A group 530 of Fig. 6, after four string LED chips parallel connections with
Two safe units in parallel (535,536) connect.
Fig. 6 and the difference of Fig. 7 are that the set location of the safe unit for protecting overcurrent is different；Three ends in figure 6 are permanent
Stream device Vn ends are connected with the negative pole of the LED module binding post of single port adjustable color temperature；Three end constant current devices in the figure 7
It is connected with the positive pole of the LED module binding post of single port adjustable color temperature after Vdd terminal and Vp ends short circuit.
In embodiment as shown in Figure 8, be provided with LED chip A group 610, LED chip B group 620, LED chip C group 630,
The safe unit 625 in safe unit 615 and the chip B group circuits in the chip A group circuits；In the LED chip of Fig. 8
Four string LED chips are provided with C groups 630, quantity k3 of each string LED chip is equal to six；Set in the LED chip A group 610 of Fig. 8
Two string LED chips are equipped with, each string LED chip quantity k1 might be less that five equal to five, k1, with peace after two string LED chip parallel connections
Full unit 615 is connected；Two string LED chips are also equipped with the LED chip B group 620 of Fig. 8, each string LED chip quantity k2 is equal to
Five, connect with safe unit 625 after two string LED chip parallel connections.
In embodiment as shown in Figure 9, be provided with LED chip A group 640, LED chip B group 650, LED chip C group 660,
The safe unit 655 in safe unit 645 and the chip B group circuits in the chip A group circuits；In the LED chip of Fig. 8
Four string LED chips are provided with C groups 660, quantity k3 of each string LED chip is equal to six；Set in the LED chip A group 640 of Fig. 9
Two string LED chips are equipped with, each string LED chip quantity k1 might be less that five equal to five, k1, with peace after two string LED chip parallel connections
Full unit 645 is connected；Two string LED chips are also equipped with the LED chip B group 650 of Fig. 8, each string LED chip quantity k2 is equal to
Five, connect with safe unit 655 after two string LED chip parallel connections.
Fig. 8 and the difference of Fig. 9 are that the set location of the safe unit for protecting overcurrent is different；Three ends in fig. 8 are permanent
Stream device Vn ends are connected with the negative pole of the LED module binding post of single port adjustable color temperature；Three end constant current devices in fig .9
It is connected with the positive pole of the LED module binding post of single port adjustable color temperature after Vdd terminal and Vp ends short circuit.
In embodiment as shown in Figure 10, LED chip A group 710, LED chip B group 720, LED chip C group 730 are provided with；
Two string LED chips are provided with the LED chip A group 710, each string LED chip quantity k1 is equal to five, it is also possible to less than five, two
String LED chip is in series with safe unit 715 and safe unit 716 respectively；Two string LED are provided with the LED chip B group 720
Chip, each string LED chip quantity k2 are equal to five, and two string LED chips are in series with safe unit 725 and safe unit 726 respectively；
Four string LED chips are provided with the LED chip C group 730 of Figure 10, quantity k3 of each string LED chip is equal to six.
In embodiment as shown in figure 11, LED chip A group 740, LED chip B group 750, LED chip C group 760 are provided with；
Two string LED chips are provided with the LED chip A group 740, each string LED chip quantity k1 is equal to five, it is also possible to less than five, two
String LED chip is in series with safe unit 745 and safe unit 746 respectively；Two string LED are provided with the LED chip B group 750
Chip, each string LED chip quantity k2 are equal to five, and two string LED chips are in series with safe unit 755 and safe unit 756 respectively；
Four string LED chips are provided with the LED chip C group 760 of Figure 10, quantity k3 of each string LED chip is equal to six.
Figure 10 and the difference of Figure 11 are that the set location of the safe unit for protecting overcurrent is different；Three ends in Fig. 10
Constant current device Vn ends are connected with the negative pole of the LED module binding post of single port adjustable color temperature；Three end galvanostats in fig. 11
It is connected with the positive pole of the LED module binding post of single port adjustable color temperature after part Vdd terminal and Vp ends short circuit.
The quantitative relation of the series LED chip of variant group in the various embodiments described above is：When only LED chip A group and
During LED chip B group, quantity K1 of LED chip A group series LED chip is less than quantity K2 of LED chip B group series LED chip；
When having LED chip A group, LED chip B group and LED chip C group, the number of LED chip A group series LED chip-in series LED chip
Quantity K2 of the amount K1 less than or equal to LED chip B group series LED chip, quantity K2 of LED chip B group series LED chip are less than
Quantity K3 of LED chip C group.
The LED chip different spectrum of selection or the LED chip of colour gamut of above-mentioned LED chip A group and above-mentioned LED chip B group；Also
High color temperature fluorescent glue or low colour temperature fluorescent glue can be covered in above-mentioned chip A groups；Chip B groups cover high color temperature fluorescent glue or
Low colour temperature fluorescent glue.
In the embodiment for possessing tri- groups of LED chips of A, B, C, from binding post（V+、V-）For introducing driving power supply
Current adjustment constant current source of the floating voltage more than C group forward voltages；LED chip A group and B group works are made by the adjustment of electric current
Make, LED chip C group does not work, i.e. the LED of LED chip A group and B groups is lighted, and the LED of LED chip C group is not lighted, and is so passed through
The adjustment of adjustment source current adjusts output, reaches A groups and B group output lights by LED chip A group and the size of current of B groups
It is logical adjustable.
Source current continues to increase so that the binding post（V+、V-）When the voltage at two ends is more than C group threshold voltages,
LED chip A group and B group work can be made, while LED chip C group also works；Also limited by safe unit current limliting simultaneously and flow through
The size of current of the chip A groups and B groups, by the output and the chip A groups and B groups of the adjustment chip C groups
The proportionate relationship of power, so as to realize the adjustment of the overall colour temperature of the LED module.
As shown in figure 12, substrate 800 includes sub for introducing a pair of terminals of driving power supply（V+、V-）Corresponding power supply
Positive terminal pad P_V+880 and power cathode pad V-890；LED chip A group 810 and LED chip B group are provided with substrate 800
820；LED chip A group 810 is connected with constant current device 850；LED chip quantity K1 connected in LED chip A group 810 is 11, if
Put in the middle part of substrate；There are two string LED chips in LED chip B group 820, LED chip quantity K2 often gone here and there in LED chip
For 12, and the two strings LED chip is located at the both sides of 810 set location of LED chip A group of substrate respectively；The positive pole of LED chip
With the approximate circular arc arrangement of negative terminal pad；LED chip is arranged on inside circular arc.
The quasiconductor constant current device in the various embodiments described above can be bent with equivalent circuit as shown in figure 13 and VI
The both-end constant current device of line；The both-end constant current device passes through Vp ends and Vn ends are connected with LED chip.
The quasiconductor constant current device in the various embodiments described above can be bent with equivalent circuit as shown in figure 14 and VI
Three end constant current devices of line；Three end constant current device includes Vdd terminal, Vp ends and Vn ends；The both-end constant current device passes through Vp
End and Vn ends are connected with LED chip, and Vdd terminal is electrically connected with the LED chip positive pole in LED chip string.
The purpose of the constant current device is to carry out the overcurrent protection and constant current of each string LED chip.Can also be other shapes
The constant current components and parts of formula, including simple current regulator diode or triode, may also be other can realize purpose other combination
Circuit or chip etc. include commercially available constant current device.
Current regulator diode in present specification especially refers to the constant-current LED driver of both-end, and its English is Two
Terminal Constant Current LED Driver；In present specification, constant current triode refers to the constant current at three ends
LED driver, its English are Three Terminal Constant Current LED Driver；Industry is to current regulator diode
Or other english abbreviations of the constant-current LED driver of both-end also include CRD：Its English is Current Regulator Diode
Or Current Regulative Diode or current-regulating diode；CCR：Constant Current
Regulator；CLD ：current-limiting diode .Such as：The model of ON (Onsemi) semiconductor company
The constant current device of NSI45060JDT4G and NSI45090JDT4G；Model NU501 and the galvanostat of NU503 that number can be scientific and technological
Part；The constant current device of model AL5809 of Diodes Incorporated companies.
Compared with the existing technology compared with the beneficial effect of the present invention is：Using the power input of single port, by adjusting electricity
Stream causes the mutual collaborative works of LED of different groups；Only with single port, and the colour temperature of every group of chip can with it is identical can not also
Together, collocation can be combined according to the demand of glow color flexibly.It is especially suitable in the limited application scenario of port resource.
Embodiment described above only expresses the preferred embodiment of the present invention, and its description is more concrete and detailed, but and
Therefore the restriction to the scope of the claims of the present invention can not be interpreted as；It should be pointed out that for one of ordinary skill in the art
For, without departing from the inventive concept of the premise, some deformations and improvement can also be made, these belong to the guarantor of the present invention
Shield scope；Therefore, all equivalents done with scope of the invention as claimed and modification, all should belong to the claims in the present invention
Covering scope.
Claims (10)
1. a kind of LED module of single port adjustable color temperature, only arranges a pair of terminals（V+、V-）Driving power supply is introduced, including：
Substrate and carry LED chip A group thereon and LED chip B group；
The chip A groups include at least a string of LED chips, and the LED chip of often going here and there is connected in series by k1 piece of LED chip；
If chip A groups include two strings or two string above LED chips, each serial core piece is connected in parallel mutually；The chip A group circuits
The safe unit of protection overcurrent is provided with inside, to ensure the electric current for flowing through each string LED chip less than feasible value, and
Put on it is described it is each string LED chip voltage it is enough when, be maintained to flow through current constant therein in feasible value；
The chip B groups also include at least a string of LED chips, the LED chip of often going here and there be connected in series by k2 piece of LED chip and
Into the k2 and k1 is natural number, and k2 is more than k1；If the chip B groups include two strings or two string above LED cores
Piece, then LED chip of respectively going here and there also are connected in parallel mutually；
The chip A groups are parallel with one another again with chip B groups, by common binding post（V+、V-）Introduce same driving power supply.
2. LED module according to claim 1, it is characterised in that：
Also include LED chip C group, the chip C groups still at least include a string of LED chips, LED chip are often gone here and there by k3 piece of LED
Chip-in series are formed by connecting, and the k3 is also natural number, and k3 is more than k2；If the chip C groups include two strings or two
String above LED chip, then LED chip of respectively going here and there also are connected in parallel mutually；But now must set respectively in two groups of circuits of described chip A, B
The safe unit of protection overcurrent is put, to ensure the electric current for flowing through each string LED chip less than feasible value, and is being put on
When the voltage of each string LED chip is enough, current constant therein is maintained to flow through in feasible value；
The chip C groups are parallel with one another again with two groups of chip A, B, and by common binding post（V+、V-）Introduce same drive
Galvanic electricity source.
3. LED module according to claim 2, it is characterised in that：
The safe unit of protection overcurrent is respectively arranged with two groups of circuits of described chip A, B, is quasiconductor constant current device；Respectively should
Quasiconductor constant current device is connected in each LED chip string of the chip A groups and B groups respectively, or by described chip A, B
Each each total again after the parallel connection respectively quasiconductor constant current device of series connection respectively of the LED chip string in two groups of circuits.
4. LED module according to claim 3, it is characterised in that：
The quasiconductor constant current device is both-end constant current device；The both-end constant current device passes through Vp ends and Vn ends and LED chip
Series connection；
Or the quasiconductor constant current device is three end constant current devices；Three end constant current device includes Vdd terminal, Vp ends and Vn ends；
The both-end constant current device passes through Vp ends and Vn ends are connected with LED chip, the LED chip positive electrical in Vdd terminal and LED chip string
Connection.
5. LED module according to claim 4, it is characterised in that：
When the quasiconductor constant current device is connected in each LED chip string of the chip A groups and B groups respectively, three end
The LED chip negative pole connection of most end, the Vn ends of three end constant current device and list in the Vp ends of constant current device and LED chip string
The negative pole connection of the LED module binding post of port adjustable color temperature, the Vdd terminal of three end constant current device and the LED of most end
The positive pole connection of chip, or the positive pole company of the Vdd terminal of three end constant current device and other LED chips in the string LED chip
Connect.
6. LED module according to claim 1, it is characterised in that：
The chip A groups and the LED chip that the LED chip of the chip B groups is different spectrum or colour gamut.
7. LED module according to claim 1, it is characterised in that：
The chip A groups and B groups are coated with the fluorescent glue of corresponding colour temperature.
8. LED module according to claim 1, it is characterised in that：
The chip A groups include a string of LED chips, and the chip B groups include two string LED chips；
The chip A groups and the chip B groups, are integrally rendered as circular arrangement on substrate；The LED chip of the chip A groups,
Positioned at circular centre position, two string LED chips of the chip B groups, respectively positioned at the chip A groups LED chip both sides.
9. a kind of usage right requires the LED color temperature adjusting methods of the LED module of single port adjustable color temperature described in 1, including step：
Step A1：The binding post is adjusted in zero load（V+、V-）The voltage of the driving power supply of introducing is more than B groups chip just
The size of current of driving power supply to voltage, is adjusted, allows the electric current of driving power supply to allow chip A groups to light, chip B groups not point
It is bright；
Step A2：On the basis of step A1, by the binding post（V+、V-）The driving power supply of introducing is carried in the chip
In A groups and the chip B groups, gradually increase the electric current for flowing through the chip A groups, now the binding post（V+、V-）Two ends
Voltage can rise with the increase of electric current but less than the threshold voltage of B group chips, the output of the chip A groups increases
Plus, only A groups are lighted；
Step A3：Continue to increase the electric current for flowing through the chip A groups on the basis of step A2 so that the electricity that A group chips flow through
Stream reaches specified constant current value, is further continued for increasing the binding post（V+、V-）The electric current of introducing, due to the presence of constant current device,
The electric current of A groups is flow through by current limliting, the forward voltage of constant current device can be raised, the binding post（V+、V-）The voltage meeting at two ends
And then raise；When the binding post（V+、V-）When the voltage at two ends is increased to the threshold voltage more than B groups, B group starting points
It is bright；As electric current further increases, the electric current that B groups flow through is also increased as, the colour temperature overall so as to adjust the LED module.
10. a kind of usage right requires the LED color temperature adjusting methods of the LED module of single port adjustable color temperature described in 2, including step
Suddenly：
Step C1：The binding post is adjusted in zero load（V+、V-）The voltage of the driving power supply of introducing is more than the positive electricity of C groups
Pressure, adjusts the size of current of driving power supply, allows the electric current of driving power supply to allow chip A groups and chip B groups to light, chip C groups
Do not light；
Step C2：On the basis of step C1, by the binding post（V+、V-）The driving power supply of introducing is carried in the chip
In A groups, the chip B groups and the chip C groups, gradually increase the electric current for flowing through the chip A groups and the chip B groups, this
Shi Suoshu binding posts（V+、V-）Both end voltage can rise with the increase of electric current but less than the threshold voltage of C group chips, institute
The output for stating chip A groups and the chip B groups increases, and the chip A groups and the chip B groups are lighted；
Step C3：On the basis of step C2, continue to increase the electric current for flowing through the chip A groups and chip B groups so that chip A
The electric current that group and chip B groups flow through reaches specified constant current value, is further continued for increasing the binding post（V+、V-）The electric current of introducing,
Due to the presence of constant current device, the electric current of chip A groups and chip B groups is flow through by current limliting, the forward voltage of constant current device can be raised,
The binding post（V+、V-）The voltage at two ends and then can be raised；When the binding post（V+、V-）The voltage at two ends is increased to
More than C groups threshold voltage when, C groups start to light；As electric current further increases, the electric current that C groups flow through is also increased as, from
And adjust the overall colour temperature of the LED module.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610612073.5A CN106560643A (en) | 2016-07-31 | 2016-07-31 | Single-port adjustable color temperature LED module and color temperature adjusting method |
| PCT/CN2017/081160 WO2018023998A1 (en) | 2016-07-31 | 2017-04-19 | Single-port led module with adjustable colour and temperature, and colour and temperature adjustment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610612073.5A CN106560643A (en) | 2016-07-31 | 2016-07-31 | Single-port adjustable color temperature LED module and color temperature adjusting method |
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| Publication Number | Publication Date |
|---|---|
| CN106560643A true CN106560643A (en) | 2017-04-12 |
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ID=58485652
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610612073.5A Pending CN106560643A (en) | 2016-07-31 | 2016-07-31 | Single-port adjustable color temperature LED module and color temperature adjusting method |
Country Status (2)
| Country | Link |
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| CN (1) | CN106560643A (en) |
| WO (1) | WO2018023998A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018023998A1 (en) * | 2016-07-31 | 2018-02-08 | 深圳市光擎光电有限公司 | Single-port led module with adjustable colour and temperature, and colour and temperature adjustment method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM457125U (en) * | 2012-11-19 | 2013-07-11 | Rui Shang Technology Co Ltd | Lighting system and a circuit for adjusting a color temperature |
| CN203788515U (en) * | 2014-03-11 | 2014-08-20 | 东莞嘉盛照明科技有限公司 | LED color temperature and luminous flux adjusting circuit |
| US20140232277A1 (en) * | 2013-02-15 | 2014-08-21 | Panasonic Corporation | Lighting source and lighting apparatus |
| CN104235787A (en) * | 2013-06-14 | 2014-12-24 | 凤凰电机公司 | Led lamp |
| US20150077002A1 (en) * | 2013-09-13 | 2015-03-19 | Panasonic Corporation | Lighting source and lighting apparatus |
| JP2015060684A (en) * | 2013-09-18 | 2015-03-30 | シチズンホールディングス株式会社 | Led lighting device |
| CN105191498A (en) * | 2013-05-03 | 2015-12-23 | 皇家飞利浦有限公司 | Led lighting circuit |
| CN205979210U (en) * | 2016-07-31 | 2017-02-22 | 深圳市光擎光电有限公司 | Single -ended mouthful of color temperature -adjustable LED module |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107079564B (en) * | 2014-09-12 | 2019-09-06 | 西铁城电子株式会社 | LED drive circuit |
| CN205160868U (en) * | 2015-11-18 | 2016-04-13 | 深圳市裕富照明有限公司 | LED circuit and LED lamps and lanterns |
| CN205408247U (en) * | 2016-03-29 | 2016-07-27 | 吴广毅 | LED light color temperature adjustment control system |
| CN106560643A (en) * | 2016-07-31 | 2017-04-12 | 深圳市光擎光电有限公司 | Single-port adjustable color temperature LED module and color temperature adjusting method |
-
2016
- 2016-07-31 CN CN201610612073.5A patent/CN106560643A/en active Pending
-
2017
- 2017-04-19 WO PCT/CN2017/081160 patent/WO2018023998A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM457125U (en) * | 2012-11-19 | 2013-07-11 | Rui Shang Technology Co Ltd | Lighting system and a circuit for adjusting a color temperature |
| US20140232277A1 (en) * | 2013-02-15 | 2014-08-21 | Panasonic Corporation | Lighting source and lighting apparatus |
| CN105191498A (en) * | 2013-05-03 | 2015-12-23 | 皇家飞利浦有限公司 | Led lighting circuit |
| CN104235787A (en) * | 2013-06-14 | 2014-12-24 | 凤凰电机公司 | Led lamp |
| US20150077002A1 (en) * | 2013-09-13 | 2015-03-19 | Panasonic Corporation | Lighting source and lighting apparatus |
| JP2015060684A (en) * | 2013-09-18 | 2015-03-30 | シチズンホールディングス株式会社 | Led lighting device |
| CN203788515U (en) * | 2014-03-11 | 2014-08-20 | 东莞嘉盛照明科技有限公司 | LED color temperature and luminous flux adjusting circuit |
| CN205979210U (en) * | 2016-07-31 | 2017-02-22 | 深圳市光擎光电有限公司 | Single -ended mouthful of color temperature -adjustable LED module |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018023998A1 (en) * | 2016-07-31 | 2018-02-08 | 深圳市光擎光电有限公司 | Single-port led module with adjustable colour and temperature, and colour and temperature adjustment method |
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| WO2018023998A1 (en) | 2018-02-08 |
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