CN208273294U - A kind of detection light source of quick adjusting colour temperature brightness - Google Patents
A kind of detection light source of quick adjusting colour temperature brightness Download PDFInfo
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- CN208273294U CN208273294U CN201721927207.9U CN201721927207U CN208273294U CN 208273294 U CN208273294 U CN 208273294U CN 201721927207 U CN201721927207 U CN 201721927207U CN 208273294 U CN208273294 U CN 208273294U
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Abstract
The utility model discloses a kind of detection light sources for quickly adjusting colour temperature brightness, which is characterized in that it includes heat sink, LED group luminescent screen is equipped in heat sink, it is equipped with side plate in heat sink periphery, annular cover plate is equipped in side plate top, in being fixed with diffusing panel on annular cover plate；It is equipped with colour temperature, brightness acquisition chip circuit board in side plate side, is equipped with light damping plate in colour temperature, brightness acquisition chip circuit prelaminar part, colour temperature, brightness acquisition chip circuit postlaminar part are equipped with mounting base.The beneficial effects of the utility model are: increasing brightness, colour temperature Acquisition Circuit, light source present intensity is calculated in real time, colour temperature data, the luminescent screen being staggered using high color temperature lamp bead and low color temperature lamp bead, and by each street lamp pearl power of special algorithm dynamic regulation, the brightness for quickly obtaining setting and the light of colour temperature are allowed users to.
Description
Technical field
The utility model relates to detect light source field, and in particular to a kind of detection light source for quickly adjusting colour temperature brightness.
Background technique
Traditional light source can only set gray scale by controller, can not accurately set the current illumination of light source.
Traditional adjustable color light source only manually adjusts different capacity with two kinds of lamp beads of high low color temperature and realizes that colour temperature can
It adjusts, can not accurately set required colour temperature.
For conventional light source using will appear light decay after when one section, controller sets the brightness of same rank, using it is long with
It needs to recalibrate the brightness of needs afterwards, fixed a brightness or color temperature value can not be set.
Utility model content
The purpose of this utility model is in view of the deficiencies of the prior art, to provide a kind of detection light for quickly adjusting colour temperature brightness
Source solves the problems, such as that existing light source can not set constant brightness value and color temperature value.
The utility model technical solution used for the above purpose is:
A kind of detection light source of quick adjusting colour temperature brightness comprising heat sink shines in heat sink equipped with LED group
Plate, is equipped with side plate in heat sink periphery, annular cover plate is equipped in side plate top, in being fixed with diffusing panel on annular cover plate；In
Side plate side is equipped with colour temperature, brightness acquisition chip circuit board, is equipped with light damping plate in colour temperature, brightness acquisition chip circuit prelaminar part,
Colour temperature, brightness acquisition chip circuit postlaminar part are equipped with mounting base.
The central control circuit includes central control chip U11 and capacitor C41, wherein the central control chip U11
The 7th foot connect the one end capacitor C41, the capacitor C41 other end, the 8th foot of central control chip U11, central control chip U11
23rd foot, the 35th foot of central control chip U11, the 44th foot of central control chip U11 and central control chip U11 the 47th
Foot ground connection；The 9th foot of the central control chip U11, the 24th foot of central control chip U11, central control chip U11
The 48th foot of 36 feet and central control chip U11 connect 3.3V power supply.
The adjusting colour temperature brightness calculation processing circuit includes processing chip U9, resistance R30, resistance R32, resistance R33, electricity
R34 is hindered, wherein the 1st foot of processing chip U9 connects the one end resistance R30, processing the 6th foot of chip U9 connects resistance R34 one end,
Processing the 7th foot of chip U9 connection one end resistance R33, processing the 8th foot of chip U9 connection one end resistance R32, the resistance R30 other end,
The 15th foot of chip U9 ground connection is handled, processing the 5th foot of chip U9, the resistance R32 other end, the resistance R33 other end, resistance R34 are another
End and processing the 16th foot of chip U9 connect 3.3V power supply.
The constant current driver circuit for LED includes LED constant current driving chip U1, capacitor C1, capacitor C3, capacitor C3, diode
D1, inductance L1, capacitor C5, capacitor C6, resistance R3, resistance R4, metal-oxide-semiconductor Q1, resistance R1, resistance R2, capacitor C2, plug-in unit P1, with
NOT gate U3, slide rheostat VR1, resistance R9, operational amplifier U4, capacitor C8, capacitor C13, capacitor C14, capacitor C15, resistance
R5, resistance R6, resistance R7, resistance R10；Wherein, the 4th foot of the LED constant current driving chip U1 connects the one end capacitor C4, LED
The 3rd foot of constant-current driven chip U1 is connected with diode cathode, the one end inductance L1, the inductance L1 other end and capacitor C5 anode,
The one end capacitor C6 and the 1st foot of plug-in unit P1 are connected, the 2nd foot and the one end resistance R3 and the sliding variable resistance of LED constant current driving chip U1
The one end device VR1 is connected, and the resistance R3 other end is connected with the pole S of the one end resistance R4 and metal-oxide-semiconductor Q1, the pole the D connection of metal-oxide-semiconductor Q1
The pole G of the crus secunda of plug-in unit P1, metal-oxide-semiconductor Q1 is connected with the one end resistance R1 and the one end resistance R2, the resistance R1 other end connection with
The 4th foot of NOT gate U3, NAND gate U3 the 1st, 2 feet connect central control circuit, the slide rheostat VR1 other end connect resistance R9
One end, the resistance R9 other end are connected with the 1st foot of operational amplifier U4, the 2nd foot, the 3rd foot of operational amplifier U4 and capacitor C15 mono-
End and the one end resistance R7 are connected, and the resistance R7 other end is connected with the one end resistance R6 and the capacitor C14 other end, and resistance R6 is another
End is connected with the one end capacitor C13, the one end resistance R10 and the one end resistance R5, and the resistance R5 other end connects central control circuit；Institute
The one end capacitor C1, the one end capacitor C3 are stated, the capacitor C4 other end connects 24.5V power supply with the 5th foot of LED constant current driving chip U1,
The 5th foot of NAND gate U3, the one end capacitor C2, the one end capacitor C8 and operational amplifier U4 the 8th foot connect 5V power supply；Capacitor C1 is another
End, the capacitor C3 other end, the 1st foot of LED constant current driving chip U1, diode D1 anode, capacitor C5 cathode, capacitor C6 are another
End, the resistance R4 other end, the resistance R2 other end, the 3rd foot of NAND gate U3, the capacitor C2 other end, operational amplifier U4 the 4th
Foot, the capacitor C8 other end, the capacitor C15 other end, the capacitor C14 other end, the capacitor C13 other end and the resistance R10 other end connect
Ground.
The power circuit includes DC/DC switching regulator U5, voltage stabilizing chip U2, resistance R11, resistance R15, capacitor C16,
Capacitor C17, capacitor C18, capacitor C7, capacitor C19, capacitor C20, resistance R14, diode D2, inductance L2, capacitor C9, capacitor
C10, resistance R8, resistance R13, capacitor C11, capacitor C12, light emitting diode D3, resistance R12, wherein the DC/DC switch is steady
The 4th foot of depressor U5 connects the one end capacitor C18, and the one end resistance R11 connects the one end resistance R15, and connects central control circuit,
The 5th foot of DC/DC switching regulator U5 is connected with the one end resistance R13 and the one end resistance R8, and the of DC/DC switching regulator U5
6 feet are connected with the one end capacitor C19 and the one end resistance R14, and the resistance R14 other end connects the one end capacitor C20, and DC/DC switch is steady
The 1st foot of depressor U5 connects the one end capacitor C7, and the 8th foot and the capacitor C7 other end, the diode D2 of DC/DC switching regulator U5 is negative
Pole, the one end inductance L2 are connected, the resistance R11 other end, the one end capacitor C16, the one end capacitor C17 and DC/DC switching regulator U5
The 2nd foot connect 24.5V power supply；The inductance L2 other end, the capacitor C9 other end, the capacitor C10 other end, the resistance R8 other end and steady
The 3rd foot of chip U2 is pressed to connect 5V power supply；The 2nd foot, the one end capacitor C11, the one end capacitor C12 and the light-emitting diodes of voltage stabilizing chip U2
Anode 3.3 power supplys of connection of pipe D3；The resistance R15 other end, the capacitor C16 other end, the capacitor C17 other end, capacitor C18 are another
End, the capacitor C19 other end, the capacitor C20 other end, the capacitor C10 other end, the resistance R13 other end, the 1st foot of voltage stabilizing chip U2, electricity
Hold the C11 other end, the capacitor C12 other end and resistance R12 other end ground connection.
The colour temperature, brightness Acquisition Circuit include plug-in unit P9, diode CR1, diode CR2, photoelectrical coupler U12 and electricity
R39 is hindered, wherein the 1st foot connection one end diode CR1 of plug-in unit P9, diode CR1 other end connection one end diode CR2, two
The pole pipe CR2 other end connects the 1st foot of photoelectrical coupler U12, and the 2nd foot of photoelectrical coupler U12 connects the 2nd foot of plug-in unit P9, light
The 3rd foot of electric coupler U12 is grounded, and the 4th foot of photoelectrical coupler U12 is connect with the one end resistance R39, and connects center control electricity
Road, the resistance R39 other end connect 3.3V power supply.
The serial communication circuit is TTL RS 232 circuit.
A method of detection light source quickly adjusts colour temperature brightness comprising following steps:
(1) light source is set, is equipped with LED group luminescent screen in the light source, the LED group luminescent screen by multiple high color temperature lamp beads with it is more
A low color temperature lamp bead is staggered composition；
(2) control circuit board is set, and integrating central control circuit in the control circuit board adjusts the processing of colour temperature brightness calculation
Circuit, double constant current driver circuit for LED, colour temperature, brightness Acquisition Circuit, power circuit and serial communication circuit；
(3) brightness is embedded in the adjusting colour temperature brightness calculation processing circuit and colour temperature quickly adjusts algorithm；
(4) it is powered and starts to work, brightness value required for setting and color temperature value, LED group luminescent screen shine；
(5) the quick adjusting of brightness value: central control circuit control output electric current is gradually increased, and increasing amplitude is 1mA,
Colour temperature, brightness Acquisition Circuit are acquired every brightness value for increasing 1mA, adjust colour temperature brightness calculation processing circuit basis first
Influence coefficient of the electric current output variation to brightness value, calculating current flow influences coefficient L to brightness valueaFormula are as follows:
La=Ln+1-Ln
In formula: n is present current value, and n+1 is that current flow increases the value after 1mA, Ln+1After increasing 1mA for current flow
Brightness value, LnFor the brightness value of current flow；
Coefficient and present intensity value and predetermined luminance value, meter are influenced on brightness value further according to calculated current flow
Calculate the current value I for needing to adjust, the calculation formula of brightness value I are as follows:
In formula: LsetFor predetermined luminance value, L is present intensity value, LaCoefficient is influenced on brightness value for current flow；
To realize quickly adjustment output electric current, and then it is rapidly achieved predetermined luminance value；
(6) the quick adjusting of color temperature value: after the brightness value for obtaining setting, colour temperature, brightness Acquisition Circuit acquire current colour temperature,
If current colour temperature is greater than preset value, high color temperature lamp bead power is reduced by central control circuit, until reaching preset color temperature value；
If current colour temperature is less than preset value, low color temperature lamp bead power is reduced by central control circuit, until reaching preset color temperature value,
Complete the quick adjusting to colour temperature.
In parallel using 18 cluster of lamps, ornamental pearls, the every big 1mA light-source brightness of increase of output total current increases situation, and it is as shown in the table:
| Current output total current | Increase 1mA brightness and increases numerical value |
| 5 | 256 |
| 15 | 187 |
| 20 | 153 |
| 30 | 141 |
| 60 | 136 |
| 90 | 125 |
| 120 | 123 |
| 150 | 118 |
| 180 | 116 |
| 210 | 112 |
| 240 | 110 |
| 270 | 108 |
| 300 | 106 |
| 330 | 102 |
It can be concluded that every increase 1mA output electric current brightness increase numerical value is essentially after total current is more than 20mA
Between 150Lux~100Lux, thus rule can be pushed away according to the error of the brightness value currently set and the brightness value currently measured
The disconnected electric current for needing to increase or decrease out, so that light-source brightness be allowed quickly to approach the brightness value of setting, the closer brightness set
Be worth curent change amplitude it is smaller, thus be quickly obtained in the accuracy rating of needs the brightness close with target value then further according to
The brightness adjustment that the required precision needed is more refined step by step, it is right respectively further according to collected colour temperature after adjustment brightness every time
The power of height colour temperature lamp bead is adjusted, so that light source color temperature variation control is in a certain range during brightness adjustment
It is interior.
The beneficial effects of the utility model are: increasing brightness, colour temperature Acquisition Circuit, light source present intensity, color are calculated in real time
Warm data, the luminescent screen being staggered using high color temperature lamp bead and low color temperature lamp bead, and pass through each road of special algorithm dynamic regulation
Lamp bead power allows users to the brightness for quickly obtaining setting and the light of colour temperature.
Detailed description of the invention
Fig. 1 is the utility model overall structure diagram；
Fig. 2 is Fig. 1 explosive view；
Fig. 3 is the utility model central control circuit figure；
Fig. 4 is that the utility model adjusts colour temperature brightness calculation processing circuit figure；
Fig. 5 is the double constant current driver circuit for LED of the utility model wherein circuit diagram all the way；
Fig. 6 is the utility model colour temperature, brightness Acquisition Circuit figure；
Fig. 7 is the utility model power circuit diagram；
Fig. 8 is the utility model serial communication circuit figure；
Fig. 9 is the utility model key control circuit figure.
In figure: 5. diffusing panel of 1.LED group luminescent screen 2. heat sink, 3. side plate, 4. annular cover plate, 6. colour temperature, brightness are adopted
Collect 7. light damping plate of chip circuit plate, 8. mounting base
Specific embodiment
Embodiment: referring to Fig. 1 to Fig. 9, the present embodiment provides a kind of detection light sources for quickly adjusting colour temperature brightness comprising
Heat sink 2, is equipped with LED group luminescent screen 1 in heat sink 2, is equipped with side plate 3 in 2 periphery of heat sink, is equipped in 3 top of side plate
Annular cover plate 4, in being fixed with diffusing panel 5 on annular cover plate 4；It is equipped with colour temperature, brightness acquisition chip circuit board 6 in 3 side of side plate,
It is equipped with light damping plate 7 in colour temperature, 6 front of brightness acquisition chip circuit board, colour temperature, 6 rear portion of brightness acquisition chip circuit board are equipped with peace
Fill seat 8.
The central control circuit includes central control chip U11 and capacitor C41, wherein the central control chip U11
The 7th foot connect the one end capacitor C41, the capacitor C41 other end, the 8th foot of central control chip U11, central control chip U11
23rd foot, the 35th foot of central control chip U11, the 44th foot of central control chip U11 and central control chip U11 the 47th
Foot ground connection；The 9th foot of the central control chip U11, the 24th foot of central control chip U11, central control chip U11
The 48th foot of 36 feet and central control chip U11 connect 3.3V power supply.
The central control chip U11 is STM32F103V8T6.
Adjusting colour temperature brightness calculation processing circuit includes processing chip U9, resistance R30, resistance R32, resistance R33, resistance
R34, wherein the 1st foot of processing chip U9 connects the one end resistance R30, processing the 6th foot of chip U9 connects resistance R34 one end, place
It manages the 7th foot of chip U9 and connects the one end resistance R33, processing the 8th foot of chip U9 connects the one end resistance R32, the resistance R30 other end, place
The 15th foot of chip U9 ground connection is managed, the 5th foot of chip U9, the resistance R32 other end, the resistance R33 other end, the resistance R34 other end are handled
And processing the 16th foot of chip U9 connects 3.3V power supply.
The processing chip U9 is STM32F030F4.
The constant current driver circuit for LED includes LED constant current driving chip U1, capacitor C1, capacitor C3, capacitor C3, diode
D1, inductance L1, capacitor C5, capacitor C6, resistance R3, resistance R4, metal-oxide-semiconductor Q1, resistance R1, resistance R2, capacitor C2, plug-in unit P1, with
NOT gate U3, slide rheostat VR1, resistance R9, operational amplifier U4, capacitor C8, capacitor C13, capacitor C14, capacitor C15, resistance
R5, resistance R6, resistance R7, resistance R10；Wherein, the 4th foot of the LED constant current driving chip U1 connects the one end capacitor C4, LED
The 3rd foot of constant-current driven chip U1 is connected with diode cathode, the one end inductance L1, the inductance L1 other end and capacitor C5 anode,
The one end capacitor C6 and the 1st foot of plug-in unit P1 are connected, the 2nd foot and the one end resistance R3 and the sliding variable resistance of LED constant current driving chip U1
The one end device VR1 is connected, and the resistance R3 other end is connected with the pole S of the one end resistance R4 and metal-oxide-semiconductor Q1, the pole the D connection of metal-oxide-semiconductor Q1
The pole G of the crus secunda of plug-in unit P1, metal-oxide-semiconductor Q1 is connected with the one end resistance R1 and the one end resistance R2, the resistance R1 other end connection with
The 4th foot of NOT gate U3, NAND gate U3 the 1st, 2 feet connect central control circuit, the slide rheostat VR1 other end connect resistance R9
One end, the resistance R9 other end are connected with the 1st foot of operational amplifier U4, the 2nd foot, the 3rd foot of operational amplifier U4 and capacitor C15 mono-
End and the one end resistance R7 are connected, and the resistance R7 other end is connected with the one end resistance R6 and the capacitor C14 other end, and resistance R6 is another
End is connected with the one end capacitor C13, the one end resistance R10 and the one end resistance R5, and the resistance R5 other end connects central control circuit；Institute
The one end capacitor C1, the one end capacitor C3 are stated, the capacitor C4 other end connects 24.5V power supply with the 5th foot of LED constant current driving chip U1,
The 5th foot of NAND gate U3, the one end capacitor C2, the one end capacitor C8 and operational amplifier U4 the 8th foot connect 5V power supply；Capacitor C1 is another
End, the capacitor C3 other end, the 1st foot of LED constant current driving chip U1, diode D1 anode, capacitor C5 cathode, capacitor C6 are another
End, the resistance R4 other end, the resistance R2 other end, the 3rd foot of NAND gate U3, the capacitor C2 other end, operational amplifier U4 the 4th
Foot, the capacitor C8 other end, the capacitor C15 other end, the capacitor C14 other end, the capacitor C13 other end and the resistance R10 other end connect
Ground.
The LED constant current driving chip U1 is AMC7150DLGT, NAND gate U3 SN74LVC1G00, operational amplifier U4
For LM358.
The power circuit includes DC/DC switching regulator U5, voltage stabilizing chip U2, resistance R11, resistance R15, capacitor C16,
Capacitor C17, capacitor C18, capacitor C7, capacitor C19, capacitor C20, resistance R14, diode D2, inductance L2, capacitor C9, capacitor
C10, resistance R8, resistance R13, capacitor C11, capacitor C12, light emitting diode D3, resistance R12, wherein the DC/DC switch is steady
The 4th foot of depressor U5 connects the one end capacitor C18, and the one end resistance R11 connects the one end resistance R15, and connects central control circuit,
The 5th foot of DC/DC switching regulator U5 is connected with the one end resistance R13 and the one end resistance R8, and the of DC/DC switching regulator U5
6 feet are connected with the one end capacitor C19 and the one end resistance R14, and the resistance R14 other end connects the one end capacitor C20, and DC/DC switch is steady
The 1st foot of depressor U5 connects the one end capacitor C7, and the 8th foot and the capacitor C7 other end, the diode D2 of DC/DC switching regulator U5 is negative
Pole, the one end inductance L2 are connected, the resistance R11 other end, the one end capacitor C16, the one end capacitor C17 and DC/DC switching regulator U5
The 2nd foot connect 24.5V power supply；The inductance L2 other end, the capacitor C9 other end, the capacitor C10 other end, the resistance R8 other end and steady
The 3rd foot of chip U2 is pressed to connect 5V power supply；The 2nd foot, the one end capacitor C11, the one end capacitor C12 and the light-emitting diodes of voltage stabilizing chip U2
Anode 3.3 power supplys of connection of pipe D3；The resistance R15 other end, the capacitor C16 other end, the capacitor C17 other end, capacitor C18 are another
End, the capacitor C19 other end, the capacitor C20 other end, the capacitor C10 other end, the resistance R13 other end, the 1st foot of voltage stabilizing chip U2, electricity
Hold the C11 other end, the capacitor C12 other end and resistance R12 other end ground connection.
The DC/DC switching regulator U5 is TPS54331, U2 LM1117-3.3V of voltage stabilizing chip.
The colour temperature, brightness Acquisition Circuit include plug-in unit P9, diode CR1, diode CR2, photoelectrical coupler U12 and electricity
R39 is hindered, wherein the 1st foot connection one end diode CR1 of plug-in unit P9, diode CR1 other end connection one end diode CR2, two
The pole pipe CR2 other end connects the 1st foot of photoelectrical coupler U12, and the 2nd foot of photoelectrical coupler U12 connects the 2nd foot of plug-in unit P9, light
The 3rd foot of electric coupler U12 is grounded, and the 4th foot of photoelectrical coupler U12 is connect with the one end resistance R39, and connects center control electricity
Road, the resistance R39 other end connect 3.3V power supply.
The photoelectrical coupler U12 is TLP521-1.
The serial communication circuit is TTL RS 232 circuit.
The above, the only preferable possible embodiments of the utility model, not to limit to the patent of the utility model
Range, thus it is all with the variation of equivalent structure made by the utility model description, it is all contained in the protection of the utility model
Range.
Claims (7)
1. a kind of detection light source for quickly adjusting colour temperature brightness, which is characterized in that it includes heat sink, is equipped in heat sink
LED group luminescent screen, is equipped with side plate in heat sink periphery, annular cover plate is equipped in side plate top, in being fixed on annular cover plate
Diffusing panel；It is equipped with colour temperature, brightness acquisition chip circuit board in side plate side, is set in colour temperature, brightness acquisition chip circuit prelaminar part
There is light damping plate, colour temperature, brightness acquisition chip circuit postlaminar part are equipped with mounting base；In the colour temperature, brightness acquisition chip circuit board
It is integrated with central control circuit, adjusts colour temperature brightness calculation processing circuit, double constant current driver circuit for LED, colour temperature, brightness acquisition electricity
Road, power circuit and serial communication circuit.
2. the detection light source of quick adjusting colour temperature brightness according to claim 1, which is characterized in that the center control electricity
Road includes central control chip U11 and capacitor C41, wherein the 7th foot of the central control chip U11 connects capacitor C41 mono-
End, the 8th foot, the 23rd foot of central control chip U11, central control chip of the capacitor C41 other end, central control chip U11
47th foot of the 35th foot of U11, the 44th foot of central control chip U11 and central control chip U11 is grounded；The center control
The 9th foot of chip U11, the 24th foot of central control chip U11, central control chip U11 the 36th foot and central control chip
The 48th foot of U11 connects 3.3V power supply.
3. the detection light source of quick adjusting colour temperature brightness according to claim 1, which is characterized in that adjust colour temperature luminance meter
Calculating processing circuit includes processing chip U9, resistance R30, resistance R32, resistance R33, resistance R34, wherein the processing chip U9 the
1 foot connects the one end resistance R30, and processing the 6th foot of chip U9 connects resistance R34 one end, and processing the 7th foot of chip U9 connects resistance R33
One end, processing the 8th foot of chip U9 connect the one end resistance R32, and the resistance R30 other end, processing the 15th foot of chip U9 ground connection handle core
The 5th foot of piece U9, the resistance R32 other end, the resistance R33 other end, the resistance R34 other end and processing the 16th foot of chip U9 connect 3.3V electricity
Source.
4. the detection light source of quick adjusting colour temperature brightness according to claim 1, which is characterized in that the LED constant current is driven
Dynamic circuit includes LED constant current driving chip U1, capacitor C1, capacitor C3, capacitor C3, diode D1, inductance L1, capacitor C5, capacitor
C6, resistance R3, resistance R4, metal-oxide-semiconductor Q1, resistance R1, resistance R2, capacitor C2, plug-in unit P1, NAND gate U3, slide rheostat VR1,
Resistance R9, operational amplifier U4, capacitor C8, capacitor C13, capacitor C14, capacitor C15, resistance R5, resistance R6, resistance R7, resistance
R10；Wherein, the 4th foot of the LED constant current driving chip U1 connects the one end capacitor C4, the 3rd foot of LED constant current driving chip U1
It is connected with diode cathode, the one end inductance L1, the inductance L1 other end and capacitor C5 anode, the one end capacitor C6 and plug-in unit P1 the 1st
Foot is connected, and the 2nd foot of LED constant current driving chip U1 is connected with the one end resistance R3 and the one end slide rheostat VR1, resistance R3
The other end is connected with the pole S of the one end resistance R4 and metal-oxide-semiconductor Q1, the crus secunda of the pole the D connection plug-in unit P1 of metal-oxide-semiconductor Q1, metal-oxide-semiconductor Q1
The pole G be connected with the one end resistance R1 and the one end resistance R2, the resistance R1 other end connect NAND gate U3 the 4th foot, NAND gate U3
The 1st, 2 feet connect central control circuit, the slide rheostat VR1 other end connect the one end resistance R9, the resistance R9 other end and fortune
Calculation the 1st foot of amplifier U4, the 2nd foot are connected, and the 3rd foot of operational amplifier U4 is connected with the one end capacitor C15 and the one end resistance R7,
The resistance R7 other end is connected with the one end resistance R6 and the capacitor C14 other end, the resistance R6 other end and the one end capacitor C13, resistance
The one end R10 and the one end resistance R5 are connected, and the resistance R5 other end connects central control circuit；The one end the capacitor C1, capacitor C3
The 5th foot of one end, the capacitor C4 other end and LED constant current driving chip U1 connect 24.5V power supply, the 5th foot, the capacitor of NAND gate U3
8th foot of the one end C2, the one end capacitor C8 and operational amplifier U4 connects 5V power supply；The capacitor C1 other end, the capacitor C3 other end, LED
The 1st foot, the diode D1 anode, capacitor C5 cathode, the capacitor C6 other end, the resistance R4 other end, resistance of constant-current driven chip U1
The R2 other end, the 3rd foot of NAND gate U3, the capacitor C2 other end, the 4th foot of operational amplifier U4, the capacitor C8 other end, capacitor
The C15 other end, the capacitor C14 other end, the capacitor C13 other end and the resistance R10 other end are grounded.
5. the detection light source of quick adjusting colour temperature brightness according to claim 1, which is characterized in that the power circuit packet
Include DC/DC switching regulator U5, voltage stabilizing chip U2, resistance R11, resistance R15, capacitor C16, capacitor C17, capacitor C18, capacitor
C7, capacitor C19, capacitor C20, resistance R14, diode D2, inductance L2, capacitor C9, capacitor C10, resistance R8, resistance R13, capacitor
C11, capacitor C12, light emitting diode D3, resistance R12, wherein the 4th foot of the DC/DC switching regulator U5 connects capacitor C18
One end, the one end resistance R11 connect the one end resistance R15, and connect central control circuit, the 5th foot of DC/DC switching regulator U5 with
The one end resistance R13 and the one end resistance R8 are connected, the 6th foot and the one end capacitor C19 and resistance R14 of DC/DC switching regulator U5
One end is connected, and the resistance R14 other end connects the one end capacitor C20, and the 1st foot of DC/DC switching regulator U5 connects capacitor C7 mono-
End, the 8th foot of DC/DC switching regulator U5 are connected with the capacitor C7 other end, diode D2 cathode, the one end inductance L2, resistance
The R11 other end, the one end capacitor C16, the one end capacitor C17 and DC/DC switching regulator U5 the 2nd foot connect 24.5V power supply；Inductance
The L2 other end, the capacitor C9 other end, the capacitor C10 other end, the resistance R8 other end and voltage stabilizing chip U2 the 3rd foot connection 5V electricity
Source；The 2nd foot, the one end capacitor C11, the one end capacitor C12 and the positive of light emitting diode D3 of voltage stabilizing chip U2 connects 3.3 power supplys；
The resistance R15 other end, the capacitor C16 other end, the capacitor C17 other end, the capacitor C18 other end, the capacitor C19 other end, capacitor C20
The other end, the capacitor C10 other end, the resistance R13 other end, the 1st foot of voltage stabilizing chip U2, the capacitor C11 other end, capacitor C12 are another
End and resistance R12 other end ground connection.
6. the detection light source of quick adjusting colour temperature brightness according to claim 1, which is characterized in that the colour temperature, brightness
Acquisition Circuit includes plug-in unit P9, diode CR1, diode CR2, photoelectrical coupler U12 and resistance R39, wherein the 1st of plug-in unit P9
Foot connects the one end diode CR1, and the diode CR1 other end connects the one end diode CR2, and the diode CR2 other end connects photoelectricity
2nd foot of the 1st foot of coupler U12, photoelectrical coupler U12 connects the 2nd foot of plug-in unit P9, and the 3rd foot of photoelectrical coupler U12 connects
4th foot on ground, photoelectrical coupler U12 is connect with the one end resistance R39, and connects central control circuit, the connection of the resistance R39 other end
3.3V power supply.
7. the detection light source of quick adjusting colour temperature brightness according to claim 1, which is characterized in that the serial communication electricity
Road is TTL RS 232 circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN108235510A (en) * | 2017-12-29 | 2018-06-29 | 东莞越视光电科技有限公司 | A kind of light source that detects quickly adjusts the method for colour temperature brightness and detection light source |
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| CN108235510A (en) * | 2017-12-29 | 2018-06-29 | 东莞越视光电科技有限公司 | A kind of light source that detects quickly adjusts the method for colour temperature brightness and detection light source |
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