CN102595722A - Light-emitting diode (LED) color temperature adjusting and controlling device and LED color temperature continuous adjustable control method - Google Patents
Light-emitting diode (LED) color temperature adjusting and controlling device and LED color temperature continuous adjustable control method Download PDFInfo
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- CN102595722A CN102595722A CN2012100285098A CN201210028509A CN102595722A CN 102595722 A CN102595722 A CN 102595722A CN 2012100285098 A CN2012100285098 A CN 2012100285098A CN 201210028509 A CN201210028509 A CN 201210028509A CN 102595722 A CN102595722 A CN 102595722A
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Abstract
The invention discloses a light-emitting diode (LED) color temperature adjusting and controlling device. The device comprises an adjustor and a driver, wherein the adjustor comprises a color temperature adjusting and controlling panel and a control signal generator; the color temperature adjusting and controlling panel is used for connecting and disconnecting a power supply and for an operator to send a color temperature adjusting and controlling signal; after receiving the color temperature adjusting and controlling signal sent by the color temperature adjusting and controlling panel, the control signal generator outputs a corresponding control signal according to an instruction; the driver comprises a microprocessor and a constant current driving module; the microprocessor receives the control signal from the control signal generator, analyzes and calculates the control signal and sends a pulse-width modulation (PWM) adjusting signal which changes the LED working current; and the constant current driving module outputs constant LED working current according to the PWM adjusting signal provided by the microprocessor. The output current of a control device is changed in a manual form, so that the color temperature and the brightness of the LED connected with the control device are adjusted.
Description
Technical field
The present invention relates to lighting technical field, particularly a kind of LED colour temperature regulation device and the continuously adjustable control method of LED colour temperature.
Background technology
Operation shadowless lamp, inspecting lamp, the interior integral illumination system of operating room etc. are the conventional and indispensable equipment of hospital, and using medical lighting system is condition of work and prerequisite necessary in numerous curative activities.The indoor employed shadowless lamp of hospital surgical, inspecting lamp etc. are by umbrella shape lamp housing and one group of huge lamp holder that based on halogen bulb constitutes at present.The problem that it exists a lot of designs and uses; As colour temperature can't regulate, temperature rise is too high, center spot place brightness irregularities, power consumption big, aberration is big, volume is big, the requirement that can not reach the vertical-horizontal lamina air flow, should not use at the purification operating room of high request, lighting quality is low influence the doctor to the tissue discriminating; Developed the medical illumination device of single colour temperature led light source and the medical illumination device that multiple LED modules with different colors light source is formed by part company in nearest 2 years.Its colour temperature of lighting device that single colour temperature led light source constitutes is fixing can not regulate, and present single colour temperature LED color rendering index low make the mistake easily diagnosis and operation are not suitable for the medical illumination that the illumination color rendering is had relatively high expectations; The medical illumination device that multiple LED modules with different colors light source amalgamation is formed, mixing can cause when blocking the working region to produce color fringe to have a strong impact on medical illumination and observe in the working region to adopt light that different colored light sources sends.
Summary of the invention
To above-mentioned technical problem, the present invention proposes a kind of LED colour temperature regulation device, the output current through manual form change control device obtains adjustment with colour temperature and brightness to connected light-emitting diode.
The technical scheme that realizes above-mentioned purpose is following:
LED colour temperature regulation device comprises adjuster and driver;
Said adjuster comprises:
Colour temperature is regulated control panel, is used to carry out on/off and supplies the operator to send the colour temperature conditioning signal;
And control-signals generator, receive and export corresponding control signal according to instruction after colour temperature adjusting control panel sends the colour temperature conditioning signal;
Said driver comprises:
Microprocessor, reception comes from the control signal that control-signals generator is sent, and this control signal is sent the PWM conditioning signal that changes the LED operating current after analyzing and calculating;
And constant-current driven module, according to the PWM conditioning signal that microprocessor provides, export constant LED operating current.
Another object of the present invention is to have proposed continuously adjustable control system of a kind of LED colour temperature and the continuously adjustable control method of LED colour temperature; The output current that this control system and control method change through automatic form obtains adjustment with colour temperature and brightness to connected light-emitting diode.Concrete technical scheme is following:
The continuously adjustable control system of a kind of LED colour temperature comprises integrating sphere, is used to gather the light that LED sends; And
Spectroscope behind the output signal of reception integrating sphere, calculates LED and sends the colour temperature of light and the accurate numerical value of brightness; And
Ammeter is used to gather the current value of each output channel; And
Computer; In advance the colour temperature that light-emitting diode sends light is become multistage according to scope division and sets each segment standard numerical value with brightness according to the calibrating procedure that presets; And colour temperature, brightness variation and LED modules with different colors tube core mixing Changing Pattern are set in the calibrating procedure; The hop count of dividing according to colour temperature and brightness when demarcating beginning is proofreaded one by one; Calibration system surveyed each segment standard numerical value compares in colour temperature and brightness and the calibrating procedure, if meet then carry out next section colour temperature and brightness check and correction, if do not meet then according to the numerical value output control signal of Changing Pattern in the calibrating procedure and each channel current table; And
Driver, this driver comprises: microprocessor is used to receive and comes from the control signal that computer sends, and this control signal is sent the PWM conditioning signal that changes the light-emitting diode operating current after analyzing and calculating; And constant-current driven module, according to the PWM conditioning signal that microprocessor provides, export constant LED operating current.
The continuously adjustable control method of a kind of LED colour temperature may further comprise the steps:
S1 gathers the light that light-emitting diode sends through integrating sphere, and gathers the current value of each output channel through ammeter;
S2, spectroscope calculates light-emitting diode and sends the colour temperature of light and the accurate numerical value of brightness after receiving the output signal of integrating sphere;
S3; Each segment standard numerical value compares in the actual measurement colour temperature that computer provides spectroscope and brightness and the computer calibrating procedure; If meet then carry out next section colour temperature and brightness check and correction, if meet then get into step S4 according to the numerical value output control signal of Changing Pattern in the calibrating procedure and each channel current table;
S4, the control signal that the microprocessor through driver provides according to computer is sent the PWM conditioning signal that changes the light-emitting diode operating current with this control signal after analyzing and calculating; The PWM conditioning signal that is provided according to microprocessor by the constant-current driven module of driver is again exported constant LED operating current.
A purpose more of the present invention provides the continuously adjustable light-emitting device of a kind of colour temperature, through manually or automatically changing output current, makes the light-emitting diode of work can realize that colour temperature can regulate.Concrete scheme is following:
The continuously adjustable light-emitting device of a kind of colour temperature comprises light-emitting diode, and said light-emitting diode is connected in the output of LED colour temperature regulation device or the continuously adjustable control system of LED colour temperature.
Adopted such scheme; The present invention is owing to adopt said structure and method can make light-emitting diode regulate the colour temperature and the brightness of output light within the specific limits continuously; Colour temperature that obtains confirming and brightness; If the present invention is applied in the medical system, can make different tissues can both clearly obtain observing, improve the medical illumination quality and reach optimum and reduce the malpractice of bringing because of the wrong identification tissue.
The present invention compares the characteristics that have with traditional lighting source:
1, colour temperature can be regulated continuously; Can make colour temperature adjustable continuously in 3500K～6500K scope through LED modules with different colors tube core brightness ratio on the control chip; And can obtain the definite light of colour temperature, can regulate according to the definition difference of different tissues under specific colour temperature and reach better illuminating effect;
2, adjustable brightness can obtain the definite light of brightness, and the brightness of continuous adjusting output light makes it the comfort level that reaches ideal, makes that eyes are difficult for producing sense of fatigue when working long hours.
Description of drawings
Fig. 1 is the circuit structure diagram of adjuster in the LED colour temperature regulation device of first embodiment of the invention;
Fig. 2 is the circuit structure diagram of driver in the LED colour temperature regulation device of first embodiment of the invention;
Fig. 3 is the structural representation of the continuously adjustable control system of LED colour temperature of second embodiment of the invention;
Fig. 4 is the flow chart of the continuously adjustable control method of LED colour temperature;
Fig. 5 is the structural representation of the continuously adjustable light-emitting device of colour temperature among the present invention;
Fig. 6 is the assembly structure figure of light-emitting diode and housing and parabolic reflector;
Fig. 7 is the light-emitting diode structure sketch map;
Fig. 8 becomes the sketch map of rectangle light emitting array for each LED die arrangement;
Fig. 9 is the circuit diagram that each road LED core circuit is connected with driver.
In the accompanying drawing, 1 is light-emitting diode, and 1a is a first via LED core circuit, and 1b is the second road LED core circuit, and 1c is a Third Road LED core circuit; 1d is the four road LED core circuit, and 2 is power line, and 3 is driver, and 4 is data wire, and 5 is adjuster; 6 is power supply, and 7 is housing, and 8 is equal tabula rasa, and 9 is parabolic reflector, and 11 is support; 12 is substrate, and 13 is binding post, and 14 is lens, and 15 is integrating sphere; 16 is optical fiber, and 17 is spectroscope, and 18 is computer, and 19 is ammeter.
Embodiment
The present invention proposes two kinds of colour temperature controls that are used for LED, wherein first kind is LED colour temperature regulation device, and second kind is the continuously adjustable control system of LED colour temperature.Respectively dual mode is described with detailed execution mode below:
Execution mode one:
With reference to Fig. 2 of Fig. 1, the LED colour temperature regulation device of this execution mode, this LED colour temperature regulation and control system device is the regulation device of manual form, it is made up of adjuster 5, driver 3 and power supply.
With reference to Fig. 1, said adjuster 5 comprises colour temperature adjusting control panel, control-signals generator, LED work condition indicator and RS232 communication module.Colour temperature is regulated control panel and is used to carry out on/off and supplies the operator to send the colour temperature conditioning signal.This colour temperature is regulated control panel and is comprised power supply control button KEY1, LED colour temperature control button and LED brilliance control button.Wherein, LED colour temperature control button increases key KEY4 by look and colour temperature attenuating key KEY5 forms, and LED brilliance control button increases key KEY2 by brightness and brightness KEY3 attenuating key is formed.In use, through operating each button, to send colour temperature and luminance instructions.
Control-signals generator IC10 receives and exports corresponding control signal according to instruction after colour temperature adjusting control panel sends the colour temperature conditioning signal.Control-signals generator IC10 is mainly used in to handle and comes from the command signal that colour temperature adjusting control panel sends, and generates control signal corresponding, and these control signals comprise the operating state indication that is used for LED, are used for adjusting of electric current variation or the like.
The LED work condition indicator is respectively applied for the colour temperature and the brightness of indication LED according to the instruction that control-signals generator provides.Because the load LED that is connected with the present invention is divided into the LED of four tunnel series connection of four kinds of colors of R/G/B/W; Therefore indicate the gentle luminance state of current color of load LED through LED light; Gentle brightness is adjusted so that the staff checks colors as required; In Fig. 1; LED1-LED7 wherein is different-colour shelves indicator lights, and LED8-LED14 is different brightness shelves indicator lights, and LED15 is a power supply indicator.
The RS232 communication module is used between adjuster and driver, communicating; Control-signals generator IC10 is connected with connector CN5; Connector CN5 is connected with the RS232 communication module, and the RS232 communication module is connected with the microprocessor IC3 of driver through connector CN2.
With reference to Fig. 2, driver 3 comprises: microprocessor IC3, constant-current driven module and connector CN3.Microprocessor IC3 receives and comes from the control signal that control-signals generator IC10 sends, and this control signal is sent the PWM conditioning signal that changes the LED operating current after analyzing and calculating.When microprocessor IC3 received the control signal of control-signals generator IC10 output, microprocessor IC3 was through Mathematical Modeling, and optical algorithms, data structure algorithm etc. calculate and analyze, and send the PWM conditioning signal.
The PWM conditioning signal that constant-current driven module provides according to microprocessor is exported constant LED operating current.Because microprocessor IC3 has four road pwm signal output channels; Therefore the constant-current driven module that is connected with microprocessor IC3 among the present invention is four; Be respectively constant-current driven module IC4, constant-current driven module IC5, constant-current driven module IC6, constant-current driven module IC7, optical diode die circuitry that the output of every road constant-current driven module connects all that riches all the way.Therefore, when every road constant-current driven module when receiving the PMW conditioning signal of microprocessor IC3, himself changes output current, adjusts with colour temperature and brightness to connected LED core circuit.
Connector CN3 receives the output signal that comes from adjuster, and the output of connector CN3 can connect microprocessor IC3 again.Because when microprocessor IC3 is connected with the connector CN5 of control-signals generator IC10 through connector CN2 again; If only pass through the effect of connector CN2, RS232 communication module and connector CN5; The signal that control-signals generator IC10 sends can only be received by a microprocessor IC3 so.Realize the cascade effect through connector CN3, being convenient to make more, microprocessor receives the signal that a control-signals generator IC10 sends.Each microprocessor IC3 connects four constant-current driven modules at the back like this, just can realize more light-emitting diode is carried out colour temperature and brightness adjustment.
With reference to Fig. 2; Power supply comprises power module IC9 and three terminal regulator IC2, and the model of power module IC9 is LM5575, and power supply is the DC-DC reduction voltage circuit; It will import+and the 48V direct voltage drops to+5VDC, and reduces to 3.3VDC through three terminal regulator IC2 general+5VDC voltage.The output voltage of power supply offers control-signals generator IC10, microprocessor IC3 respectively, and the LED work condition indicator.
The course of work of this execution mode is following:
KEY1 connects power supply through power supply control button, for whole device provides operating voltage.Each the road LED core that is connected in each road constant-current driven module output is lighted.Make colour temperature regulate the output regulating command of control panel as required;, control-signals generator IC10 conditioning signal is outputed to microprocessor IC3 after handling by the RS232 communication module; And changing the brightness indication on the LED work condition indicator respectively, colour temperature is indicated.Send the PWM conditioning signal to each road constant-current driven module through microprocessor IC3, make the output current of each road constant-current driven module be able to change, reach desired brightness and color temperature value.
Execution mode two:
With reference to Fig. 3, the continuously adjustable control system of LED colour temperature of this execution mode, the continuously adjustable control system of this LED colour temperature is the regulation device of automatic form, concrete structure is following:
With reference to Fig. 4, for the continuously adjustable control system of LED colour temperature, the present invention also correspondingly proposes the continuously adjustable control method of a kind of LED colour temperature in implementation process, and this method may further comprise the steps:
S1 gathers the light that light-emitting diode sends through integrating sphere, and gathers the current value of each output channel through ammeter;
S2, spectroscope calculates light-emitting diode and sends the colour temperature of light and the accurate numerical value of brightness after receiving the output signal of integrating sphere;
S3; Each segment standard numerical value compares in the actual measurement colour temperature that computer provides spectroscope and brightness and the computer calibrating procedure; If meet then carry out next section colour temperature and brightness check and correction, if meet then get into step S4 according to the numerical value output control signal of Changing Pattern in the calibrating procedure and each channel current table;
S4, the control signal that the microprocessor through driver provides according to computer is sent the PWM conditioning signal that changes the light-emitting diode operating current with this control signal after analyzing and calculating; The PWM conditioning signal that is provided according to microprocessor by the constant-current driven module of driver is again exported constant LED operating current.
The engineering process of this execution mode is following:
At first the microprocessor IC3 of driver 3 writes initial parameter value in system; System connects back series current table 19 in driver 3 each output channel and gathers each channel current value; Ammeter 19 connects computer through data wire; Energized makes the load LED of system luminous, utilizes integrating sphere 15 to collect light that LED send and is input to spectroscope 17 through optical fiber 16, sends the colour temperature of light and the accurate numerical value of brightness through spectroscope 17 calculated data LED; Through the calibrating procedure that presets in the computer 18 colour temperature and brightness are become more than 8 sections or 8 sections plurality of sections and set each segment standard numerical value according to scope division; And colour temperature, brightness variation and LED modules with different colors light source mixing Changing Pattern are set in the calibrating procedure, proofread one by one according to the colour temperature and the hop count of brightness division when demarcating beginning, calibration system is surveyed each segment standard numerical value compares in colour temperature and brightness and the calibrating procedure; If meet then carry out next section colour temperature and brightness check and correction; If do not meet, then computer 18 is regulated the output signal to driver 3 according to the numerical value of Changing Pattern in the calibrating procedure and each channel current table 19, program and storing among the microprocessor IC3 in the change driver; Make the dimming interface of the PWM digital signal of microprocessor output adjustment to constant-current driven module; Change the current value of each constant-current driven module output channel, it is adjustable continuously to make brightness and the mixed light ratio of LED modules with different colors tube core reach colour temperature, and whether its colour temperature of device and brightness after detected parameters changes once more through system satisfy this segment standard numerical value requirement; So circulation all reaches standard figures in the calibrating procedure, system's colour temperature and brightness demarcation completion until every section colour temperature and brightness repeatedly.
With reference to Fig. 5 to Fig. 9; The invention allows for the continuously adjustable light-emitting device of a kind of colour temperature; It comprises light-emitting diode 1, and the LED colour temperature regulation device (see figure 5) of above-mentioned first execution mode, the perhaps continuously adjustable control system of LED colour temperature of second execution mode.Light-emitting diode 1 is connected in the output of LED colour temperature regulation device or the continuously adjustable control system of LED colour temperature; Can carry out colour temperature and brightness regulation to light-emitting diode 1 through manual LED colour temperature regulation device, and also can regulate the colour temperature and the brightness of light-emitting diode 1 through the continuously adjustable control system of automatic LED colour temperature.Said light-emitting diode 1 is arranged in the housing 7, is provided with parabolic reflector 9 and equal tabula rasas 8 in the housing 7, and parabolic reflector cover 9 is lived light-emitting diode 1, and all tabula rasa 8 is installed in the parabolic reflector height and position place apart from parabolic reflector bottom 1/4.Light that light-emitting diode 1 is sent converges and is adjusted at through parabolic reflector 9 and forms required hot spot on the working face, and all tabula rasa 8 different colours light that light-emitting diode 1 is sent is uniformly mixed to form the color hot spot that throws light on uniformly.In Fig. 5, adjuster 5 is connected with driver 3 through data wire 4, and driver 3 is connected with light-emitting diode 1 through power line 2.
With reference to Fig. 7 and Fig. 8, light-emitting diode 1 comprises substrate 12, is fixed on the support 11 on the substrate 12 and is fixed on the lens 14 on the support that substrate 12 is housed in the lens 14, is welded with the binding post 13 that is used to connect driver 3 on the substrate 12.Substrate 12 is provided with light emitting array; This light emitting array is made up of some white light LEDs tube cores, red-light LED tube core, green light LED tube core, blue-ray LED tube core; First trip, the tail of light emitting array is capable, all be arranged as the white light LEDs tube core on the position of first and tail row; The framework that these first trips, tail are capable, the white light LEDs tube core on first and the tail column position forms light emitting array, remaining white light LEDs tube core and red-light LED tube core, green light LED tube core, blue-ray LED tube core are enclosed in the framework of light emitting array.In the light emitting array, the quantitative proportion of red-light LED tube core, said green light LED tube core, blue-ray LED tube core is 3:4:2.In the light emitting array of embodiment of the present invention, the white light LEDs tube core adds up to 40, and the red-light LED tube core adds up to 3, and the green light LED tube core adds up to 4, and the blue-ray LED tube core adds up to 2, so light emitting array is the rectangle light emitting array of 7 row, 7 row.Specifically being arranged as of this rectangle light emitting array: first row and secondary series all are arranged as the white light LEDs tube core; The inferior sequence arrangement of the 3rd leu according to white light LEDs tube core, red-light LED tube core, green light LED tube core, white light LEDs tube core, green light LED tube core, red-light LED tube core, white light LEDs tube core; The inferior sequence arrangement of the 4th leu according to white light LEDs tube core, blue-ray LED tube core, white light LEDs tube core, white light LEDs tube core, white light LEDs tube core, blue-ray LED tube core, white light LEDs tube core; The inferior sequence arrangement of the 5th leu according to white light LEDs tube core, red-light LED tube core, green light LED tube core, white light LEDs tube core, green light LED tube core, white light LEDs tube core, white light LEDs tube core; The 6th row and the 7th row all are arranged as the white light LEDs tube core.
In the light emitting array of this execution mode; Be composed in series first via LED core circuit 1a by many white light LEDs tube cores and many red-light LED tube cores; In this first via LED core circuit, the quantity of white light LEDs tube core is 9, and the red-light LED tube core adds up to 3.Be composed in series the second road LED core circuit 1b by many white light LEDs tube cores and many green light LED tube cores, in this second road LED core circuit, the quantity of white light LEDs tube core is 8, and the green light LED tube core adds up to 4.Be composed in series Third Road LED core circuit 1c by many white light LEDs tube cores and many blue-ray LED tube cores.In this Third Road LED core circuit, the quantity of white light LEDs tube core is 10, and the blue-ray LED tube core adds up to 2.Be composed in series the four road LED core circuit 1d by many white light LEDs tube cores, in the four road LED core circuit, the quantity of white light LEDs tube core is 13.Each road LED core circuit just, negative electrode is respectively equipped with the electric connection of the constant-current driven module that is used for connecting driver 3.The following (see figure 9) of concrete connection of each road LED core circuit:
First via LED core circuit 1a connects like this: the negative electrode of white light LEDs tube core W1 is connected with the anode of white light LEDs tube core W2; The negative electrode of white light LEDs tube core W2 is connected with the anode of red-light LED tube core R1; The negative electrode of red-light LED tube core R1 is connected with the anode of red-light LED tube core R2; The negative electrode of red-light LED tube core R2 is connected with the anode of red-light LED tube core R3; The negative electrode of red-light LED tube core R3 is connected with the anode of white light LEDs tube core W3, and the negative electrode of white light LEDs tube core W3 is connected with the anode of white light LEDs tube core W4, and the negative electrode of white light LEDs tube core W4 is connected with the anode of white light LEDs tube core W5; The negative electrode of white light LEDs tube core W5 is connected with the anode of white light LEDs tube core W6; The negative electrode of white light LEDs tube core W6 is connected with the anode of white light LEDs tube core W7, and the negative electrode of white light LEDs tube core W7 is connected with the anode of white light LEDs tube core W8, and the negative electrode of white light LEDs tube core W8 is connected with the anode of white light LEDs tube core W9; The anode of white light LEDs tube core W1 is connected with four-way LED constant-current driven module IC4 positive pole through electric connection, and the negative electrode of white light LEDs tube core W9 is connected with the negative pole of four-way LED constant-current driven module IC4.
The second road diode chip circuit 1b connects like this: the negative electrode of white light LEDs tube core W10 is connected with the anode of white light LEDs tube core W11; The negative electrode of white light LEDs tube core W11 is connected with the anode of green light LED tube core G1; The negative electrode of green light LED tube core G1 is connected with the anode of green light LED tube core G2; The negative electrode of green light LED tube core G2 is connected with the anode of green light LED tube core G3; The negative electrode of green light LED tube core G3 is connected with the anode of green light LED tube core G4, and the negative electrode of green light LED tube core G4 is connected with the anode of white light LEDs tube core W12, and the negative electrode of white light LEDs tube core W12 is connected with the anode of white light LEDs tube core W13; The negative electrode of white light LEDs tube core W13 is connected with the anode of white light LEDs tube core W14; The negative electrode of white light LEDs tube core W14 is connected with the anode of white light LEDs tube core W15, and the negative electrode of white light LEDs tube core W15 is connected with the anode of white light LEDs tube core W16, and the negative electrode of white light LEDs tube core W16 is connected with the anode of white light LEDs tube core W17; The anode of white light LEDs tube core W10 is connected through the positive pole of electric connection with four-way LED constant-current driven module IC5, and the negative electrode of white light LEDs tube core W17 is connected with the negative pole of four-way LED constant-current driven module IC5.
Third Road diode chip circuit 1c connects like this: the negative electrode of white light LEDs tube core W18 is connected with the anode of white light LEDs tube core W19; The negative electrode of white light LEDs tube core W19 is connected with the anode of blue-ray LED tube core B1; The negative electrode of blue-ray LED tube core B1 is connected with the anode of blue-ray LED tube core B2; The negative electrode of blue-ray LED tube core B2 is connected with anode with white light LEDs tube core W20; The negative electrode of white light LEDs tube core W20 is connected with the anode of white light LEDs tube core W21; The negative electrode of white light LEDs tube core W21 is connected with the anode of white light LEDs tube core W22; The negative electrode of white light LEDs tube core W22 is connected with the anode of white light LEDs tube core W23, and the negative electrode of white light LEDs tube core W23 is connected with the anode of white light LEDs tube core W24, and the negative electrode of white light LEDs tube core W24 is connected with the anode of white light LEDs tube core W25; The negative electrode of white light LEDs tube core W25 is connected with the anode of white light LEDs tube core W26; White light LEDs tube core W26 negative electrode is connected with the anode of white light LEDs tube core W27, and the anode of white light LEDs tube core W18 is connected through the positive pole of electric connection with four-way LED constant-current driven module IC6, and the negative electrode of white light LEDs tube core W27 is connected with the negative pole of four-way LED constant-current driven module IC6.
The four road diode chip circuit 1d connects like this: the negative electrode of white light LEDs tube core W28 is connected with the anode of white light LEDs tube core W29; The negative electrode of white light LEDs tube core W29 is connected with the anode of white light LEDs tube core W30; The negative electrode of white light LEDs tube core W30 is connected with the anode of white light LEDs tube core W31; The negative electrode of white light LEDs tube core W31 is connected with the anode of white light LEDs tube core W32; The negative electrode of white light LEDs tube core W32 is connected with the anode of white light LEDs tube core W33; The negative electrode of white light LEDs tube core W33 is connected with the anode of white light LEDs tube core W34, and the negative electrode of white light LEDs tube core W34 is connected with the anode of white light LEDs tube core W35, and the negative electrode of white light LEDs tube core W35 is connected with the anode of white light LEDs tube core W36; The negative electrode of white light LEDs tube core W36 is connected with the anode of white light LEDs tube core W37; The negative electrode of white light LEDs tube core W37 is connected with the anode of white light LEDs tube core W38, and the negative electrode of white light LEDs tube core W38 is connected with the anode of white light LEDs tube core W39, and the negative electrode of white light LEDs tube core W39 is connected with the anode of white light LEDs tube core W40; The anode of white light LEDs tube core W28 is connected with four-way LED constant-current driven module IC7 anode through electric connection, and the negative electrode of white light LEDs tube core W40 is connected with the negative electrode of four-way LED constant-current driven module IC7.
Claims (11)
1. a LED colour temperature regulation device is characterized in that: comprise adjuster and driver;
Said adjuster comprises:
Colour temperature is regulated control panel, is used to carry out on/off and supplies the operator to send the colour temperature conditioning signal;
And control-signals generator, receive and export corresponding control signal according to instruction after colour temperature adjusting control panel sends the colour temperature conditioning signal;
Said driver comprises:
Microprocessor, reception comes from the control signal that control-signals generator is sent, and this control signal is sent the PWM conditioning signal that changes the LED operating current after analyzing and calculating;
And constant-current driven module, according to the PWM conditioning signal that microprocessor provides, export constant LED operating current.
2. LED colour temperature regulation device according to claim 1; It is characterized in that: said adjuster also comprises the LED work condition indicator; This LED work condition indicator is respectively applied for the colour temperature and the brightness of indication LED according to the instruction that control-signals generator provides.
3. LED colour temperature regulation device according to claim 1 and 2 is characterized in that: said colour temperature is regulated control panel and is comprised power supply control button, LED colour temperature control button and LED brilliance control button.
4. LED colour temperature regulation device according to claim 1, it is characterized in that: said driver also comprises the connector that is used to make driver and cascaded.
5. the continuously adjustable control system of LED colour temperature is characterized in that: comprise integrating sphere, be used to gather the light that LED sends; And
Spectroscope behind the output signal of reception integrating sphere, calculates LED and sends the colour temperature of light and the accurate numerical value of brightness; And
Ammeter is used to gather the current value of each output channel; And
Computer; In advance the colour temperature that light-emitting diode sends light is become multistage according to scope division and sets each segment standard numerical value with brightness according to the calibrating procedure that presets; And colour temperature, brightness variation and LED modules with different colors tube core mixing Changing Pattern are set in the calibrating procedure; The hop count of dividing according to colour temperature and brightness when demarcating beginning is proofreaded one by one; Calibration system surveyed each segment standard numerical value compares in colour temperature and brightness and the calibrating procedure, if meet then carry out next section colour temperature and brightness check and correction, if do not meet then according to the numerical value output control signal of Changing Pattern in the calibrating procedure and each channel current table; And
Driver, this driver comprises: microprocessor is used to receive and comes from the control signal that computer sends, and this control signal is sent the PWM conditioning signal that changes the light-emitting diode operating current after analyzing and calculating; And constant-current driven module, according to the PWM conditioning signal that microprocessor provides, export constant LED operating current.
6. the continuously adjustable control method of LED colour temperature is characterized in that, may further comprise the steps:
S1 gathers the light that light-emitting diode sends through integrating sphere, and gathers the current value of each output channel through ammeter;
S2, spectroscope calculates light-emitting diode and sends the colour temperature of light and the accurate numerical value of brightness after receiving the output signal of integrating sphere;
S3; Each segment standard numerical value compares in the actual measurement colour temperature that computer provides spectroscope and brightness and the computer calibrating procedure; If meet then carry out next section colour temperature and brightness check and correction, if meet then get into step S4 according to the numerical value output control signal of Changing Pattern in the calibrating procedure and each channel current table;
S4, the control signal that the microprocessor through driver provides according to computer is sent the PWM conditioning signal that changes the light-emitting diode operating current with this control signal after analyzing and calculating; The PWM conditioning signal that is provided according to microprocessor by the constant-current driven module of driver is again exported constant LED operating current.
7. continuously adjustable light-emitting device of colour temperature; Comprise light-emitting diode; It is characterized in that: also comprise LED colour temperature regulation device as claimed in claim 1; The continuously adjustable control system of LED colour temperature perhaps as claimed in claim 5, said light-emitting diode is connected in the output of LED colour temperature regulation device or the continuously adjustable control system of LED colour temperature.
8. the continuously adjustable light-emitting device of colour temperature according to claim 7; It is characterized in that: light-emitting diode comprises substrate, is fixed on the support on the substrate and is fixed on the lens on the support; Said substrate is provided with light emitting array; This light emitting array is made up of some white light LEDs tube cores, red-light LED tube core, green light LED tube core, blue-ray LED tube core; First trip, the tail of light emitting array is capable, all be arranged as the white light LEDs tube core on the position of first and tail row; The framework that these first trips, tail are capable, the white light LEDs tube core on first and the tail column position forms light emitting array, remaining white light LEDs tube core and red-light LED tube core, green light LED tube core, blue-ray LED tube core are enclosed in the framework of light emitting array.
9. the continuously adjustable light-emitting device of colour temperature according to claim 8 is characterized in that: in light emitting array, be composed in series first via LED core circuit by many white light LEDs tube cores and many red-light LED tube cores;
Be composed in series the second road LED core circuit by many white light LEDs tube cores and many green light LED tube cores;
Be composed in series Third Road LED core circuit by many white light LEDs tube cores and many blue-ray LED tube cores;
Be composed in series the four road LED core circuit by many white light LEDs tube cores.
10. the continuously adjustable light-emitting device of colour temperature according to claim 8 is characterized in that: specifically being arranged as of said light emitting array: first row and secondary series all are arranged as the white light LEDs tube core;
The inferior sequence arrangement of the 3rd leu according to white light LEDs tube core, red-light LED tube core, green light LED tube core, white light LEDs tube core, green light LED tube core, red-light LED tube core, white light LEDs tube core;
The inferior sequence arrangement of the 4th leu according to white light LEDs tube core, blue-ray LED tube core, white light LEDs tube core, white light LEDs tube core, white light LEDs tube core, blue-ray LED tube core, white light LEDs tube core;
The inferior sequence arrangement of the 5th leu according to white light LEDs tube core, red-light LED tube core, green light LED tube core, white light LEDs tube core, green light LED tube core, white light LEDs tube core, white light LEDs tube core;
The 6th row and the 7th row all are arranged as the white light LEDs tube core.
11. the continuously adjustable light-emitting device of colour temperature according to claim 8; It is characterized in that: said light-emitting diode is arranged in the housing; Be provided with parabolic reflector and equal tabula rasa in the housing; Parabolic reflector covers light-emitting diode, and all tabula rasa is installed in the height and position place of the parabolic reflector of distance bottom 1/4 in the parabolic reflector.
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| CN201210028509.8A CN102595722B (en) | 2012-02-09 | 2012-02-09 | Light-emitting diode (LED) color temperature adjusting and controlling device and LED color temperature continuous adjustable control method |
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| CN102595722B CN102595722B (en) | 2014-03-19 |
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| CN102595722B (en) | 2014-03-19 |
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