CN208317065U - LED drive power based on the toning of 2.4G remote control light modulating - Google Patents

Abstract

The utility model discloses a kind of LED drive powers based on the toning of 2.4G remote control light modulating comprising have: LED drive circuit is connected between ac power input end and LED light source, and the LED light source includes the LED light string of at least two groups different-colour in parallel；Light adjusting circuit is connect with the LED drive circuit, and the electric current of LED light source is input to for the pwm signal LED drive circuit for adjusting according to input；Toning circuit, connects the circuit into the LED drive circuit and LED light source, for adjusting the electric current for being input to each LED light string according to the pwm signal of input；Governor circuit, it is integrated with a 2.4G radio receiving transmitting module, and it is connected with one 0~10V light modulator, the governor circuit is according to the light modulation and/or toning signal from 2.4G radio receiving transmitting module or the dim signal from 0~10V light modulator, and output pwm signal to the light adjusting circuit and/or circuit of mixing colours are respectively to control the work of the two.

Description

LED drive power based on the toning of 2.4G remote control light modulating

Technical field

The utility model relates to a kind of LED drive power, relate more specifically to a kind of based on the toning of 2.4G remote control light modulating LED drive power.

Background technique

With advances in technology, the raising of people's lives level, smart home product have gradually come into ordinary people's Life, intelligentized family product is also more and more popular with consumers, and traditional lighting lamps and lanterns have also been gradually completed by tradition Energy-saving lamp is to energy conservation and environmental protection, the LED lamp of high life, then to the transformation of intelligent, can customize LED lamp, with disappearing Take upgrading, intelligentized illuminating product can gradually become main product；Intelligent distant control, the electrodeless adjustment of colour temperature, brightness it is electrodeless The functions such as adjusting, combination control will all become the favor of terminal consumer.

The lamps and lanterns product with distant control function currently on the market, mainly using the mode of infrared remote control, light modulation toning Substantially and using the light modulation of segmented mix colours, infrared remote control mode there are remote control distances short, generally only 5-10m, and And one-to-one control can only be carried out, multiple groups lamps and lanterns cannot be controlled simultaneously, and there is also remote control dead angles for infrared remote control The problem of.

In consideration of it, it is necessary to provide one kind can non-pole light regulating toning and remote control distance it is farther away be based on 2.4G remote control light modulating tune The LED drive power of color is to solve drawbacks described above.

Utility model content

Technical problem to be solved in the utility model provides one kind can non-pole light regulating toning and the farther away base of remote control distance In the LED drive power of 2.4G remote control light modulating toning.

In order to solve the above technical problems, the utility model provides a kind of LED driving electricity based on the toning of 2.4G remote control light modulating Source comprising have LED drive circuit, governor circuit, light adjusting circuit and toning circuit；Wherein,

LED drive circuit is connected between ac power input end and LED light source, and the LED light source includes in parallel The LED light string of at least two groups different-colour；

Light adjusting circuit is connect with the LED drive circuit, for defeated according to the pwm signal LED drive circuit for adjusting of input Enter to the electric current of LED light source；

Toning circuit, connects the circuit into the LED drive circuit and LED light source, for the pwm signal tune according to input Section is input to the electric current of each group of LED light string；

Governor circuit is integrated with a 2.4G radio receiving transmitting module, and is connected with one 0~10V light modulator, the master control electricity Road is divided according to the light modulation and/or toning signal from 2.4G radio receiving transmitting module or the dim signal from 0~10V light modulator Other output pwm signal is to the light adjusting circuit and/or circuit of mixing colours to control the work of the two.Based on above-mentioned design, this is practical It is novel to increase the governor circuit for being integrated with 2.4G radio receiving transmitting module on the basis of remaining traditional 0-10V light modulator, Can be connect by 2.4G radiofrequency signal with peripheral control unit, according to from peripheral control unit dimming commands and/or toning instruct, Output pwm signal to the light adjusting circuit and/or toning circuit, to realize to the electrodeless brightness regulations of more LED lamps and Electrodeless color temperature adjustment.

Its further technical solution are as follows: the LED drive circuit includes AC/DC constant voltage circuit and Buck decompression Constant Electric Current Road, the AC/DC constant voltage circuit include be sequentially connected in ac power input end and Buck decompression constant-current circuit between it is whole Flow filter circuit and constant voltage circuit；The Buck decompression constant-current circuit includes the first driving chip U1, third inductance, third electricity Appearance, the 27th resistance, second transistor, the 16th diode, the 18th diode and a short-circuit protection circuit, described The output end of the input pin connection light adjusting circuit of one driving chip U1, the output pin connection of first driving chip U1 One end of third inductance, the input terminal of the other end connection short-circuit protection circuit of third inductance and one end of third capacitor, third The anode of the other end of capacitor and the output end of short-circuit protection circuit and the 18th diode connects, the third capacitor and third Output positive OUT+ of the one end of inductance connection as LED drive circuit, the other end are negative as the output of LED drive circuit OUT-, the 27th resistance connect a driving pin of the first driving chip U1, and the other end connects second transistor The cathode of grid and the 16th diode, the positive V+ of output of the drain electrode connection constant voltage circuit of the second transistor, second transistor Source electrode, the 18th diode cathode and the 16th diode anode be grounded；The wherein output of the LED drive circuit The anode of positive OUT+ connection LED light string.

Its further technical solution are as follows: the LED drive power further includes having a connection ac power input end and LED to drive Power switch and one between dynamic circuit is for detecting the power switch detection circuit of power switch working condition, the master control electricity Road obtains the voltage of power switch detection circuit output end to adjust the colour temperature of LED light string.

Its further technical solution are as follows: the power switch detection circuit includes to be coupled in transformation in the constant voltage circuit The secondary windings of device armature winding, the 13rd diode, the 9th capacitor, the 21st resistance, the 22nd resistance, the 11st electricity Appearance, the 23rd resistance and the first transistor；Wherein, the Same Name of Ends of the secondary windings is connecting the 13rd diode just Pole, the cathode of the 13rd diode connect one end of the 9th capacitor and the 21st resistance, the 21st resistance it is another One end of the 22nd resistance of end connection, the 11st capacitor and the 23rd resistance, the other end connection of the 23rd resistance The grid of the first transistor, the drain electrode of the first transistor are connected to the governor circuit, the different name end of the secondary windings The other end of the 9th capacitor, the 22nd resistance and the 11st capacitor and the source electrode of the first transistor are connected, and is connected to LED The negative OUT- of the output of driving circuit.

Its further technical solution are as follows: the light adjusting circuit includes photoelectrical coupler, the 26th resistance, the 34th Resistance, the 35th resistance, the 36th resistance, the 14th capacitor and the 15th capacitor；Wherein, the 34th resistance One end be connected to the governor circuit, the other end connects the anode of the light emitting diode of the photoelectrical coupler, photoelectric coupling The negative OUT- of output of the cathode connection LED drive circuit of the light emitting diode of device, one end of the 35th resistance connects light The emitter of the phototriode of electric coupler, the other end connect one end of the 14th capacitor and the 36th resistance, this three The other end of 16 resistance is connect with the 15th capacitor and LED drive circuit, the 14th capacitor and the 15th capacitor it is another One end is grounded, and the collector of the phototriode of photoelectrical coupler connects one end of the 26th resistance, the 26th electricity The other end of resistance connects power supply VCC.

Its further technical solution are as follows: the light adjusting circuit further includes having a voltage regulator circuit, and the voltage regulator circuit includes one Three terminal regulator and the 33rd resistance, the cathode of the three terminal regulator and one end with reference to pole and the 33rd resistance connect Connect the emitter of the phototriode of photoelectrical coupler, the other end of the anode of the three terminal regulator and the 33rd resistance is equal Ground connection.

Its further technical solution are as follows: the toning circuit includes that at least double switch circuit, the switching circuit connects It is connected to the governor circuit, and each switching circuit connects a LED light string.

Its further technical solution are as follows: the LED light source includes the LED light string of two groups of different-colours in parallel, accordingly , the toning circuit includes double switch circuit, and a switching circuit is connected to the governor circuit, and another switching circuit passes through One reverse circuit is connected to governor circuit, and each switching circuit connects a LED light string；Wherein, the reverse circuit packet The 61st resistance and the 7th transistor are included, one end of the 61st resistance and the base stage of the 7th transistor are connected to The governor circuit, the input terminal of the collector connection respective switch circuit of the 7th transistor, the hair of the 7th transistor The other end of emitter-base bandgap grading and the 61st resistance is connected to the negative OUT- of output of LED drive circuit.

Its further technical solution are as follows: the switching circuit includes a driving chip, second resistance, 3rd resistor, third Transistor and electrolytic capacitor；Wherein, the input pin of the driving chip is connected to the governor circuit, the driving chip it is defeated One end of pin connection second resistance out, one end of the other end connection 3rd resistor of the second resistance and the grid of third transistor Pole, the cathode of drain electrode one LED light string of connection of the third transistor and the cathode of electrolytic capacitor, the anode of electrolytic capacitor is even The positive OUT+ of output of LED drive circuit is met, the source electrode of the third transistor and the another of 3rd resistor are connected to LED driving The negative OUT- of the output of circuit, wherein the anode of the positive OUT+ connection LED light string of output of the LED drive circuit.

Its further technical solution are as follows: the switching circuit further includes having a filter capacitor, and described filter capacitor one end connects The source electrode of third transistor is connect, the other end connects the cathode of electrolytic capacitor.

Compared with prior art, the utility model is realized by 2.4G remote control to the LED drive power of the utility model Light modulation toning, i.e., governor circuit is integrated with a 2.4G radio receiving transmitting module, can be connected by 2.4G radiofrequency signal and peripheral control unit It connects, according to the dimming commands from peripheral control unit and/or instruction of mixing colours, output pwm signal to the light adjusting circuit and/or tune Color circuit to realize to electrodeless brightness regulation and electrodeless color temperature adjustment, while remaining traditional 0-10V light modulator, this reality With the novel light modulation function that can also realize LED according to the luminous intensity of the variation control LED light string of the voltage of 0-10V light modulator Can, can meet the needs of different user, facilitate the routine use of consumer.

Detailed description of the invention

Fig. 1 is the circuit block for one specific embodiment of LED drive power that the utility model is mixed colours based on 2.4G remote control light modulating Figure.

Fig. 2 is the physical circuit block diagram of LED drive circuit in the utility model.

Fig. 3 be governor circuit in the utility model, light adjusting circuit, the Buck decompression constant-current circuit in LED drive circuit and The physical circuit figure of toning circuit.

Fig. 4 is the physical circuit figure of power switch detection circuit in the utility model.

Specific embodiment

To make those skilled in the art that the purpose of this utility model, technical solution and excellent be more clearly understood Point is further elaborated the utility model below in conjunction with drawings and examples.

Referring to figs. 1 to Fig. 4, Fig. 1 to Fig. 4 illustrates the LED driving electricity that the utility model is mixed colours based on 2.4G remote control light modulating One specific embodiment in source 10.In the embodiment shown in the figures, the LED drive power 10 include LED drive circuit 101, Governor circuit 102, light adjusting circuit 103 and toning circuit 104；Wherein, the LED drive circuit 101 is connected to AC power source Between input terminal and LED light source 12, the LED light source 12 includes the LED light string of at least two groups different-colour in parallel.It is described Light adjusting circuit 103 is connect with the LED drive circuit 101, for defeated according to the pwm signal LED drive circuit for adjusting 101 of input Enter to the electric current of LED light source 12, to control the luminous intensity of LED light source 12.The toning circuit 104 is connected into the LED The circuit of driving circuit 101 and LED light source 12, for adjusting the electricity for being input to each LED light string according to the pwm signal of input Stream, to control the colour temperature of LED light source 12.The governor circuit 102 is integrated with a 2.4G radio receiving transmitting module, and connects a 0- 10V light modulator 11, the governor circuit 102 is according to the light modulation and/or toning signal from 2.4G radio receiving transmitting module or from 0 The dim signal of~10V light modulator 11, output pwm signal to the light adjusting circuit 103 and/or toning circuit 104 are respectively to control Make the work of the two.Preferably, in the present embodiment, the governor circuit 102 based on the chip MCU U10 of model BK2461 come It realizes.Understandably, governor circuit 102 is connect by 2.4G radiofrequency signal with peripheral control unit, it is preferable that the external control Device is RK419 remote controler, i.e. the remote controler is connect by 2.4G radiofrequency signal with LED drive power 10, controls and is connected in parallel The wireless control to more LED lamps/packet radio control may be implemented in multiple groups LED light string.

In certain embodiments, the LED drive circuit 101 includes that AC/DC constant voltage circuit 1010 and Buck decompression are permanent Current circuit 1015, it is preferable that the AC/DC constant voltage circuit 1010 is existing inverse-excitation type switch power-supply circuit, for that will exchange Electricity is converted into the direct current of constant pressure comprising be sequentially connected in ac power input end and Buck decompression constant-current circuit 1015 it Between current rectifying and wave filtering circuit 1011 and constant voltage circuit 1012.The Buck decompression constant-current circuit 1015 is used to mention for LED light source 12 It is driven for stable constant current comprising have the first driving chip U1, third inductance L3, third capacitor C3, the 27th resistance R27, second transistor Q2, the 16th diode D16, the 18th diode D18 and a short-circuit protection circuit 1013.Wherein, The output end of an input pin (pin 4, ACTL foot) the connection light adjusting circuit 103 of the first driving chip U1, first drive One end of an output pin (pin 6, SENSE foot) the connection third inductance L3 of dynamic chip U1, the other end of third inductance L3 connect Connect the input terminal of short-circuit protection circuit 1013 and one end of third capacitor C3, the other end and short-circuit protection circuit of third capacitor C3 The anode connection of 1013 output end and the 18th diode D18, one end that the third capacitor C3 is connect with third inductance L3 The positive OUT+ of output as LED drive circuit 101, output negative OUT- of the other end as LED drive circuit 101, described Driving pin (pin 3, GATE foot) of 27 resistance R27 the first driving chip of connection U1, other end connection second are brilliant The drain electrode of the grid of body pipe Q2 and the cathode of the 16th diode D16, second transistor Q2 connects the AC/DC constant voltage circuit The positive V+ of the output of constant voltage circuit 1012 in 1010, it is preferable that its drain electrode can also be connected to LED by one the 20th capacitor C20 The positive OUT+ of the output of driving circuit 101, the source electrode of second transistor Q2, the cathode of the 18th diode D18 and the 16th pole The anode of pipe D16 is grounded；The wherein anode of the positive OUT+ connection LED light string of output of the LED drive circuit 101.Preferably, The first driving chip U1 model RT8458.

In the present embodiment, the short-circuit protection circuit 1013 include the 68th resistance R68, the 66th resistance R66 and First voltage-stabiliser tube ZD1, one end of the 68th resistance R68 is connected to the output positive OUT+ of LED drive circuit 101, another One end of the 66th resistance R66 of end connection and the cathode of the first voltage-stabiliser tube ZD1, the other end of the 66th resistance R66 And first the anode of voltage-stabiliser tube ZD1 be connected to the negative OUT- of output of LED drive circuit 101, in the present embodiment, the first voltage-stabiliser tube Short-circuit detecting point A1 point is set as at the cathode of ZD1, MCU U10 detects the voltage of A1 point.

In certain embodiments, the Buck decompression constant-current circuit 1015 further includes having a sample circuit 1014, described to adopt Sample circuit 1014 includes an at least sampling resistor, and one end of the sampling resistor connects the output pin of the first driving chip U1 (pin 6, SENSE foot), other end ground connection.By attached drawing it is found that in the present embodiment, the sample circuit 1014 includes the 30th Eight resistance R38, the 39th resistance R39, the 40th resistance R40, the 41st resistance R41 and the 63rd resistance R63 this five A sampling resistor, it will be appreciated that ground, in some other embodiments, the number and resistance parameter of the sampling resistor can be according to reality Demand is configured.

In certain embodiments, the light adjusting circuit 103 includes photoelectrical coupler, the 26th resistance R26, the 30th Four resistance R34s, the 35th resistance R35, the 36th resistance R36, the 14th capacitor C14 and the 15th capacitor C15；Its In, one end of the 34th resistance R34 is connected to an output pin (pin of MCU U10 in the governor circuit 102 21) which, is set as PWM2 foot, the other end is connecting the light emitting diode of the photoelectrical coupler just Pole, the negative OUT- of output of the cathode connection LED drive circuit 101 of the light emitting diode of photoelectrical coupler, the 35th electricity The emitter of the phototriode of one end connection photoelectrical coupler of R35 is hindered, the other end connects the 14th capacitor C14 and third One end of 16 resistance R36, in the other end and the 15th capacitor C15 and LED drive circuit 101 of 36 resistance R36 An input pin (pin 4, ACTL foot) of one driving chip U1 connects, the 14th capacitor C14's and the 15th capacitor C15 The other end is grounded, one end of the 26th resistance R26 of collector connection of the phototriode of photoelectrical coupler, and the 20th The other end of six resistance R26 connects power supply VCC, and wherein power supply VCC is provided by LED drive circuit 101.It is described based on the design 35th resistance R35, the 36th resistance R36, the 14th capacitor C14 and the 15th capacitor C15 constitute filter circuit, this After the governor circuit 102 of utility model receives the dim signal of peripheral control unit, it is connect by change with light adjusting circuit 103 The virtual value of filter circuit then can be changed in the duty ratio of PWM2 foot, and then changes the LED connecting with the output end of filter circuit and drive The voltage of ACTL foot in the first driving chip U1 in circuit 101 is moved, to change the electric current of input LED light string, to realize LED light The brightness regulation in source 12.

In the present embodiment, the light adjusting circuit 103 further includes having a voltage regulator circuit 1031, and the voltage regulator circuit 1031 wraps Include a three terminal regulator U3 and the 33rd resistance R33；The cathode (pin 2) and reference pole (pin of the three terminal regulator U3 1) emitter of the phototriode of photoelectrical coupler, the three terminal regulator are all connected with one end of the 33rd resistance R33 The anode (pin 3) of U3 and the other end of the 33rd resistance R33 are grounded.In some embodiments, the light adjusting circuit 103 It further include having the 13rd capacitor C13 and the 37th resistance R37, one end of the 13rd capacitor C13 connects photoelectrical coupler Phototriode collector, one end of the 37th resistance R37 is connected to the 36th resistance R36 and the 15th capacitor Between C15, the other end of the 13rd capacitor C13 and the 37th resistance R37 are grounded.Preferably, the three terminal regulator U3 model TL431.

Lamps and lanterns are dimmed it is found that 0-10V light modulator had both can be used in the utility model, can also be used external remote into When using 0-10V dimmer for light control by adjusting 0-10V light modulator, then 0-10V dimmer circuit can be changed in row light modulation Output voltage, MCU U10 adjusts the duty ratio for the PWM2 foot connecting with light adjusting circuit by detecting the output voltage, to change Become the electric current of input LED light string；And when using external remote light modulation, MCU U10 receives the tune of 2.4G remote controler sending Optical signal, after decoding, MCU U10 directly adjusts the duty ratio for the PWM2 foot connecting with light adjusting circuit according to decoded information, To change the electric current of input LED light string.

In the embodiment shown in the figures, LED light source 12 is made of the LED light string of two different-colours in parallel, correspondingly, Toning circuit 104 is made of double switch circuit 1041, and the structure of each switching circuit 1041 is identical, and a switching circuit 1041 It is correspondingly connected with a LED light string, by adjusting the conducting dutycycle of each switching circuit 1041, each LED light string is flowed into adjustment Electric current, to realize the color temperature adjustment of LED light source 10.The switching circuit 1041 include a driving chip, second resistance, 3rd resistor, third transistor, electrolytic capacitor and filter capacitor.Wherein, the input pin (pin 6) of the driving chip connects It is connected to an output pin (pin 19) in the governor circuit 102, which is set as PWM1 foot, the driving One end of the output pin connection second resistance of chip, one end of the other end connection 3rd resistor of the second resistance and third are brilliant The grid of body pipe, the cathode of drain electrode one LED light string of connection, one end of filter capacitor and the electrolytic capacitor of the third transistor Cathode, the positive OUT+ of output of the anode connection LED drive circuit 101 of electrolytic capacitor, the source electrode of the third transistor and filter Wave capacitor and the other end of 3rd resistor are connected to the negative OUT- of output of LED drive circuit 101.Preferably, in the present embodiment The model MX321 of the driving chip.Preferably, in the present embodiment, the switching circuit 1041 further includes having one first electricity Resistance, the input pin (pin 6) of the driving chip are connected to the PWM1 in the governor circuit 102 by the first resistor Foot.Based on the design, when the duty ratio of the PWM1 foot of governor circuit 102 increases, the switching circuit that is connect with the PWM1 foot The conducting dutycycle of third transistor in 1041 declines, then flows through the electric current for the LED light string connecting with the switching circuit 1041 Reduce, the lamp bead in the LED light string is dimmed, and PWM1 foot duty ratio is adjusted to linear regulation, adjustable range 0- 100%, therefore the variation of LED light string brightness is very smooth, it can be achieved that electrodeless color temperature adjustment linearly.

In some embodiments, the grounding pin in the driving chip (pin 5 and pin 2) is connected to LED driving electricity The negative OUT- of the output on road 101, power pins (pin 1) are negative by the output of a capacitance connection to LED drive circuit 101 OUT-, and the power pins (pin 1) are also connected with power vd D.

Specifically, as shown in figure 3, in the present embodiment, a path switching circuit 1041 includes driving chip U8, first resistor R64, second resistance R29,3rd resistor R49, third transistor Q4, filter capacitor C26 and electrolytic capacitor E6, third transistor Q4 Drain electrode connect one group of LED light string (such as LED1) cathode, second resistance R29 one end connection U8 an output pin (pin 3), the negative OUT- of output that the power pins (pin 1) of driving chip U8 are connected to LED drive circuit 101 by capacitor C18；Separately One path switching circuit 1041 includes driving chip U9, first resistor R65, second resistance R30,3rd resistor R67, third transistor Q5, filter capacitor C27 and electrolytic capacitor E7, the drain electrode of third transistor Q5 connect the cathode of another group of LED light string (such as LED2), An output pin (pin 3) of one end connection U9 of second resistance R30, the power pins (pin 1) of driving chip U9 pass through electricity Hold the negative OUT- of output that C19 is connected to LED drive circuit 101.

Preferably, the toning circuit 104 further includes having a reverse circuit 1042, and the reverse circuit 1042 includes the 6th One end of 11 resistance R61 and the 7th transistor Q7, the 61st resistance R61 and the base stage of the 7th transistor Q7 are logical The PWM1 foot that the first resistor R65 is connected to the governor circuit 102 is crossed, the collector of the 7th transistor Q7 connects phase The input pin (pin 6) of the driving chip U9 of inductive switch circuit 1041, the emitter and the 61st of the 7th transistor Q7 The other end of resistance R61 is connected to the negative OUT- of output of LED drive circuit 101, in the present embodiment, the 7th transistor Q7's Collector also passes through one the 62nd resistance R62 and is connected at power supply 3.3V.Based on above-mentioned design, the governor circuit 102 is connect After the toning signal for receiving peripheral control unit, change the duty ratio of PWM1 foot, drives third crystal by driving chip U8 all the way Pipe Q4, another way drive third transistor by driving chip U9 after the 7th transistor Q7 overturning in reverse circuit 1042 Q5 makes the output of third transistor Q4 and Q5 be maintained at complementary state, to keep the constant of output power when adjusting colour temperature； When the duty ratio of PWM1 foot increases, then the conducting dutycycle decline of third transistor Q4, the conducting duty of third transistor Q5 Than increasing, then the current effective value for flowing through LED1 reduces, and the lamp bead in LED1 is dimmed, and the current effective value for flowing through LED2 increases Add, the lamp bead in LED2 brightens.

It will be appreciated by those skilled in the art that ground, in other examples, when LED light source 12 is by multiple groups different-colour LED light string composition, correspondingly, the quantity of switching circuit 1041 is set as identical as LED light string quantity in toning circuit 104, with So that a switching circuit 1041 is correspondingly connected with a LED light string, and the switching circuit 1041 is connected to the governor circuit 102, so that governor circuit 102 flows into the electric current for the LED light string being correspondingly connected with by the control of switching circuit 1041, to adjust The colour temperature of LED light source 12.

Understandably, if it is respectively the 1st string LED light string of 6000K and the 2nd string of 3000K that LED light source 12, which includes colour temperature, LED light string, then the toning circuit 104 includes first switch circuit and second switch circuit this double switch circuit 1041, institute It states first switch circuit to connect with the 1st string LED light string, second switch circuit is connect with the 2nd string LED light string.If first switch is electric Third transistor conducting in road, then the light that LED light source 12 issues at this time is 6000K white light；If in second switch circuit Three transistor turns, then the 2nd string LED light string shines, the yellow light that the light that LED light source 12 issues at this time is 3000K；And if first opens The third transistor in third transistor and second switch circuit in powered-down road is both turned on, then the 1st string LED light string and the 2nd string LED light string shines, the similar sunlight that the light that LED light source 12 issues at this time is the 4500K that 6000K+3000K is mixed to get； And if the conducting dutycycle of the third transistor in first switch circuit and the third transistor in second switch circuit is different, the 1 string LED light string is different with the light emission luminance of the 2nd string LED light string, to change the colour temperature of LED light source 12.Similarly, if including more The LED light string of group different-colour, then circuit 104 of mixing colours include the switching circuit 1041 of quantity identical as the LED light string, multiple groups Then there are many various combinations to obtain a variety of different colour temperatures for the LED light string of different-colour.

In the present embodiment, the LED drive power 10 further includes having one to be connected to ac power input end and LED driving Power switch S and one between circuit 101 is used to detect the power switch detection circuit 105 of power switch S working condition, The governor circuit 102 obtains the voltage of 105 output end of power switch detection circuit to adjust the colour temperature of LED light string.Preferably, The power switch detection circuit 105 include one be coupled in transformer in the constant voltage circuit 1012 (i.e. flyback switching electricity The transformer being connected in its PWM controller in source circuit by a metal-oxide-semiconductor) armature winding secondary windings and be connected to The 13rd diode D13, the 9th capacitor C9, the 21st resistance R21, the 22nd resistance R22 on the secondary windings, 11 capacitor C11, the 23rd resistance R23 and the first transistor Q1；Wherein, the Same Name of Ends connection the 13rd of the secondary windings The anode of diode D13, one end of cathode connection the 9th capacitor C9 and the 21st resistance R21 of the 13rd diode D13, The other end of 21st resistance R21 connects the 22nd resistance R22, the 11st capacitor C11 and the 23rd resistance R23's One end, the grid of the other end connection the first transistor Q1 of the 23rd resistance R23, the drain electrode of the first transistor Q1 (being set as A3 foot) is connected to an input pin (pin 10) of MCU U10 in the governor circuit 102, the secondary windings it is different Name end connects the other end of the 9th capacitor C9, the 22nd resistance R22 and the 11st capacitor C11 and the source of the first transistor Q1 Pole, and the negative OUT- of output for being connected to LED drive circuit 101.In some embodiments, the power switch detection circuit 105 Further include thering is the anode of diode D15 and electrolytic capacitor E5, the diode D15 to connect with the Same Name of Ends of secondary windings, bears Pole is connect with the anode of electrolytic capacitor E5, and the different name end of cathode and secondary windings which holds connects.Based on the design, Governor circuit 102 can change the duty ratio for the PWM1 foot connecting with toning circuit 104 by detecting the state of power switch S, To adjust the colour temperature of lamp string.That is MCU U10 is changed and toning electricity by the output of detection the first transistor Q1 drain electrode (A3 foot) The duty ratio for the PWM1 foot that road 104 connects；Because D13, C9, R21, R22, C11 and R23 form RC charge-discharge circuit, due to capacitor Charge-discharge characteristic, be closed again in 5S after power switch S is closed, the charge at the 11st both ends capacitor C11 do not discharge, voltage Also exist, the first transistor Q1 is connected, drain electrode output is low level, MCU U10 if MCU U10 detects the first transistor Q1 By changing the duty ratio of PWM1 foot, to change the current effective value for flowing through LED light string, to change colour temperature；And work as power switch S It is not closed in 5S after closing, the charge at the 11st both ends capacitor C11 has discharged, the moment being once again powered up, the 11st capacitor C11 is charged by the 21st resistance R21, and the charging time will be about 3S or so, and the energization of MCU U10 mono- will detect the The output of the output of one transistor Q1 drain electrode, the moment the first transistor Q1 drain electrode of energization is high level, then MCU U10 is not right LED light string progress colour temperature switching, but the state before remaining powered off.

In conclusion the utility model realizes the light modulation tune to the LED drive power of the utility model by 2.4G remote control Color, i.e. governor circuit are integrated with a 2.4G radio receiving transmitting module, can be connect by 2.4G radiofrequency signal with peripheral control unit, according to Dimming commands and/or toning instruction from peripheral control unit, output pwm signal to the light adjusting circuit and/or toning circuit, To realize electrodeless brightness regulation and electrodeless color temperature adjustment to more LED lamps, while remaining traditional 0-10V light modulation Device, the utility model can also realize LED's according to the luminous intensity of the variation control LED light string of the voltage of 0-10V light modulator Dimming function, and the colour temperature of LED can also be adjusted by controlling the switch time of power switch, to meet the need of different user It asks, facilitates the routine use of consumer.

The above is only the preferred embodiment of the present invention, rather than does limit in any form to the utility model System.Those skilled in the art can impose various equivalent changes and improvement on the basis of the above embodiments, all to want in right The equivalent variations or modification done in range are sought, should fall within the protection scope of this utility model.

Claims (10)

1. a kind of LED drive power based on the toning of 2.4G remote control light modulating, which is characterized in that the LED drive power includes:

LED drive circuit is connected between ac power input end and LED light source, the LED light source include it is in parallel at least The LED light string of two groups of different-colours；

Light adjusting circuit is connect with the LED drive circuit, for being input to according to the pwm signal LED drive circuit for adjusting of input The electric current of LED light source；

Toning circuit, connects the circuit into the LED drive circuit and LED light source, defeated for being adjusted according to the pwm signal of input Enter to the electric current of each LED light string；

Governor circuit is integrated with a 2.4G radio receiving transmitting module, and is connected with one 0~10V light modulator, the governor circuit root It is defeated respectively according to the light modulation and/or toning signal from 2.4G radio receiving transmitting module or the dim signal from 0~10V light modulator Pwm signal is to the light adjusting circuit and/or circuit of mixing colours to control the work of the two out.

2. the LED drive power as described in claim 1 based on the toning of 2.4G remote control light modulating, it is characterised in that: the LED drives Dynamic circuit include AC/DC constant voltage circuit and Buck decompression constant-current circuit, the AC/DC constant voltage circuit include be sequentially connected in Current rectifying and wave filtering circuit and constant voltage circuit between ac power input end and Buck decompression constant-current circuit；The Buck is depressured constant current Circuit includes the first driving chip U1, third inductance, third capacitor, the 27th resistance, second transistor, the 16th pole One input pin of pipe, the 18th diode and a short-circuit protection circuit, the first driving chip U1 connects light adjusting circuit Output end, first driving chip U1 an output pin connection third inductance one end, third inductance the other end connection The input terminal of short-circuit protection circuit and one end of third capacitor, the other end of third capacitor and the output end of short-circuit protection circuit and Output of the one end of the anode connection of 18th diode, the third capacitor and third inductance connection as LED drive circuit Positive OUT+, output negative OUT- of the other end as LED drive circuit, the 27th resistance connect the first driving chip U1 One driving pin, the other end connect second transistor grid and the 16th diode cathode, the second transistor The positive V+ of output of drain electrode connection constant voltage circuit, the cathode and the 16th diode of the source electrode of second transistor, the 18th diode Anode be grounded；The wherein anode of the positive OUT+ connection LED light string of output of the LED drive circuit.

3. the LED drive power as claimed in claim 2 based on the toning of 2.4G remote control light modulating, it is characterised in that: the LED drives Dynamic power supply further includes having the power switch and one between a connection ac power input end and LED drive circuit for detecting power supply The power switch detection circuit of switch working state, the governor circuit obtain the voltage of power switch detection circuit output end with Adjust the colour temperature of LED light string.

4. the LED drive power as claimed in claim 3 based on the toning of 2.4G remote control light modulating, it is characterised in that: the power supply Switch detection circuit include be coupled in the secondary windings of primary winding in the constant voltage circuit, the 13rd diode, 9th capacitor, the 21st resistance, the 22nd resistance, the 11st capacitor, the 23rd resistance and the first transistor；Its In, the Same Name of Ends of the secondary windings connects the anode of the 13rd diode, the 9th electricity of cathode connection of the 13rd diode Hold and one end of the 21st resistance, the other end of the 21st resistance connects the 22nd resistance, the 11st capacitor and the One end of 23 resistance, the grid of the other end connection the first transistor of the 23rd resistance, the first transistor Drain electrode is connected to the governor circuit, and the different name end of the secondary windings connects the 9th capacitor, the 22nd resistance and the 11st The other end of capacitor and the source electrode of the first transistor, and the negative OUT- of output for being connected to LED drive circuit.

5. the LED drive power as described in claim 1 based on the toning of 2.4G remote control light modulating, it is characterised in that: the light modulation Circuit includes photoelectrical coupler, the 26th resistance, the 34th resistance, the 35th resistance, the 36th resistance, the tenth Four capacitors and the 15th capacitor；Wherein, one end of the 34th resistance is connected to the governor circuit, other end connection The cathode of the anode of the light emitting diode of the photoelectrical coupler, the light emitting diode of photoelectrical coupler connects LED drive circuit The negative OUT- of output, the 35th resistance one end connection photoelectrical coupler phototriode emitter, it is another One end of end the 14th capacitor of connection and the 36th resistance, the other end of 36 resistance and the 15th capacitor and LED drive The other end of dynamic circuit connection, the 14th capacitor and the 15th capacitor is grounded, the phototriode of photoelectrical coupler Collector connects one end of the 26th resistance, and the other end of the 26th resistance connects power supply VCC.

6. the LED drive power as claimed in claim 5 based on the toning of 2.4G remote control light modulating, it is characterised in that: the light modulation Circuit further includes having a voltage regulator circuit, and the voltage regulator circuit includes a three terminal regulator and the 33rd resistance, and three end is steady The cathode of depressor and reference pole and one end of the 33rd resistance are all connected with the emitter of the phototriode of photoelectrical coupler, institute The other end of the anode and the 33rd resistance of stating three terminal regulator is grounded.

7. the LED drive power as described in claim 1 based on the toning of 2.4G remote control light modulating, it is characterised in that: the toning Circuit includes that at least double switch circuit, the switching circuit is connected to the governor circuit, and each switching circuit Connect a LED light string.

8. the LED drive power as described in claim 1 based on the toning of 2.4G remote control light modulating, it is characterised in that: the LED light Source includes the LED light string of two groups of different-colours in parallel, correspondingly, the toning circuit includes double switch circuit, one is opened Powered-down road is connected to the governor circuit, and another switching circuit is connected to governor circuit by a reverse circuit, and each described Switching circuit connects a LED light string；Wherein, the reverse circuit includes the 61st resistance and the 7th transistor, and described the The base stage of one end of 61 resistance and the 7th transistor is connected to the governor circuit, the collector of the 7th transistor The input terminal of respective switch circuit is connected, the emitter of the 7th transistor and the other end of the 61st resistance are connected to LED The negative OUT- of the output of driving circuit.

9. the LED drive power as claimed in claim 7 or 8 based on the toning of 2.4G remote control light modulating, it is characterised in that: described to open Powered-down road includes a driving chip, second resistance, 3rd resistor, third transistor and electrolytic capacitor；Wherein, the driving chip Input pin be connected to the governor circuit, one end of the output pin connection second resistance of the driving chip, second electricity One end of the other end connection 3rd resistor of resistance and the grid of third transistor, the drain electrode of the third transistor connect described in one The cathode of LED light string and the cathode of electrolytic capacitor, the output positive OUT+ of the anode connection LED drive circuit of electrolytic capacitor are described The source electrode of third transistor and the another of 3rd resistor are connected to the negative OUT- of output of LED drive circuit, wherein the LED drives The anode of the positive OUT+ connection LED light string of output of dynamic circuit.

10. the LED drive power as claimed in claim 9 based on the toning of 2.4G remote control light modulating, it is characterised in that: the switch Circuit further includes having a filter capacitor, the source electrode of filter capacitor one end connection third transistor, other end connection electrolysis electricity The cathode of appearance.