CN201303444Y - Two-wire LED control device capable of accepting various light dimming methods - Google Patents
Two-wire LED control device capable of accepting various light dimming methods Download PDFInfo
- Publication number
- CN201303444Y CN201303444Y CNU2008201135186U CN200820113518U CN201303444Y CN 201303444 Y CN201303444 Y CN 201303444Y CN U2008201135186 U CNU2008201135186 U CN U2008201135186U CN 200820113518 U CN200820113518 U CN 200820113518U CN 201303444 Y CN201303444 Y CN 201303444Y
- Authority
- CN
- China
- Prior art keywords
- power supply
- circuit
- led
- dim signal
- output
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The utility model discloses a two-wire LED control device capable of accepting various light dimming methods, comprising a power supply and light dimming signal drive circuit, a PWM output circuit and a light dimming two-wire LED lamp body; wherein the light dimming signal outputted from the PWM output circuit is transmitted to the power supply and light dimming signal drive circuit to modulate the power supply, after modulation, the power supply with the light dimming information is transmitted to the light dimming two-wire LED lamp body, then a rectification circuit in the light dimming two-wire LED lamp body performs polarity change of the power supply with the light dimming information and transmits to a light dimming signal and power supply separation circuit to separate the light dimming signal and the power supply, therefore the LED power supply and two-wire light dimming are realized. The LED control device is widely applied in the two-wire LED light dimming control.
Description
Technical field
The utility model relates to a kind of light adjusting controller, and more specifically, particularly a kind of two-wire system can be accepted the LED control device of multiple dimming mode.
Background technology
At present, the light modulation of light is to as being incandescent lamp or Halogen lamp LED, and their dimming mode is to add a controllable silicon dimmer at its front end it is carried out light modulation, is the light modulation of a kind of direct high voltage two-wire system, is a kind of more traditional light-dimming method.Appearance along with the low-power consumption energy-saving LED, it is energy-conservation that LED has low-voltage, and spectrum is good, colour purity, light efficiency height, no ultraviolet radiation or the like, these plurality of advantages of LED make it obtain positive popularization, have begun progressively to replace common light source in the commercialization illumination now.Because LED illumination now is an excessive illuminating product still, its type of drive all is to use constant-current driving, this makes the light modulation of LED not come light modulation with the mode of regulating its both end voltage size, so also can't be compatible fully with present wiring aspect the control of circuit.The light modulation of LED at present all is than higher pwm pulse light modulation by regulating frequency, so the light source of LED illumination is except having two power lines, also has a light modulation port, and traditional incandescent lamp bulb, Halogen lamp LED are controllable silicon dimmers of series connection before its power line, by preceding cut or back phase-cut dimming, the effective voltage value that is regulating load carries out light modulation, so traditional light modulation circuit can't directly be installed with the dimming mode compatibility of LED; Because the LED illumination is a low voltage power supply, in the LED lamp body, have the constant-current source, the outside also has the AC-DC converting power source, if make the LED light adjusting system of dimming function, must in the LED lamp body, draw two power lines and a light modulation line, such operation is very inconvenient, such illumination lamp body does not also appear on the market, as MR16 is exactly the lamp body that has only two joints, and having a dimming function, LED can do the road that must walk that function that imaging MR16 equally has only two terminals and have a light modulation will become LED illumination development.
Summary of the invention
The LED control device that provides a kind of two-wire system can accept multiple dimming mode is provided the purpose of this utility model, continue to use traditional light modulation mode of connection, remove to modulate the power supply of LED by the PWM dim signal, the LED power supply of PWM modulation makes when can be realized LED powered, can take out dim signal from LED power supply again through the modulation of PWM dim signal, realization is to the light modulation of LED, power supply through PWM dim signal modulation LED, it is the desired power supply of LED, it is again the PWM dim signal of LED light modulation, pass through isolation technics, to separating of power supply and dim signal, can realize as the light modulation of traditional two line light modulation modes of connection realization to the LED illumination of two-wire power supply.
The technical solution of the utility model is:
Described a kind of two-wire system can be accepted the LED control device of multiple dimming mode, it comprises: controllable silicon dimmer (1), electronics dummy load (2), power supply (3), rectification circuit (4), dim signal and power supply split circuit (5), LED drives constant-current source (6), led light source (7), power supply and dim signal drive circuit (8), PWM output circuit (9), light modulation sample circuit (10)
Wherein tunable optical two-wire system LED lamp body (12) comprises rectification circuit (4), dim signal and power supply split circuit (5), and LED drives constant-current source (6), led light source (7);
Its annexation: civil power (11) divides three the tunnel through the output of controllable silicon dimmer (1), the first via connects electronics dummy load (2), the second the tunnel connects light modulation sample circuit (10), Third Road connects power supply (3), the dimmer voltage of light modulation sample circuit (10) output 1-10V links to each other with PWM output circuit (9), PWM output circuit (9) output duty cycle geometric ratio is connected with dim signal drive circuit (8) with power supply in the PWM of 1-10V dim signal, be modulated into power supply (3) behind the pulse current consistent and the positive pole of power supply (3) is connected on the tunable optical two-wire system LED lamp body (12) simultaneously with the PWM dim signal, after the pulse current consistent with the PWM dim signal enters tunable optical two-wire system LED lamp body (12), be connected on the rectification circuit (4) in the tunable optical two-wire system LED lamp body (12), the output of rectification circuit (4) is connected with power supply split circuit (5) with dim signal, through dim signal with after power supply split circuit (5) separates, output divides two-way, one tunnel power supply as led light source drives constant-current source (6) with LED and links to each other, the straight-through led light source (7) of output, another road is connected to as the PWM dim signal on the light modulation end of LED driving constant-current source (6);
Controlled step is:
The PWM dim signal removes modulation power source through power supply and dim signal drive circuit, the dim signal of the power supply of LED and LED is merged into the power supply that contains light modulation information, send the LED lamp body of tunable optical two-wire system, rectification circuit in the LED lamp body carries out reversal to the power supply that contains light modulation information, the power supply that contains light modulation information after the reversal separates with the LED power supply dim signal with the power supply split circuit through dim signal, the light modulation end that isolated dim signal send LED to drive constant-current source, isolated power supply drive constant current source power supply to LED behind capacitor filtering.
Described PWM output circuit (9) comprises resistance R 12～R22, capacitor C 3, diode D3～D4, triode Q3, voltage comparator ic 2 1/2LM393 and IC2 2/2LM393;
Voltage comparator ic 21/2LM393 and resistance R 12～R19, capacitor C 3, diode D3～D4, triode Q3 connect to form triangle wave generating circuit, resistance R 20～R21 is connected in series, common point after the series connection connects the in-phase input end of IC22/2LM393, be connected to the inverting input of voltage comparator ic 2 2/2LM393 from the triangular wave of IC2 1/2LM393 in-phase end output, and after the institute's dividing potential drop of connecting with R20～R21 level and smooth dimmer voltage relatively, the PWM dim signal of generation is connected on power supply and the dim signal drive circuit (8).
Described PWM output circuit (9) can also be MCU processor or PWM output oscillating circuit, the PWM dim signal that produces by MCU processor or PWM output oscillating circuit is connected on power supply and dim signal drive circuit (8) the metal-oxide-semiconductor Q4, and dim signal is modulated into the electric current that contains light modulation information to power supply by metal-oxide-semiconductor Q4 and is connected on the tunable optical two-wire system LED lamp body (12).
Described light modulation sample circuit (10) comprises photoelectrical coupler U1, resistance R 5～R10, capacitor C 2, voltage stabilizing didoe ZD1～ZD2, voltage comparator ic 1 1/2LM393.
Described electronics dummy load (2) comprises resistance R 0～R3, R1A～R6A, diode D1, capacitor C 1, metal-oxide-semiconductor Q1～Q2, triode Q0, voltage comparator ic 1 2/2LM393.
Described tunable optical two-wire system LED lamp body (12) comprises resistance R 23～R24, inductance L 1, the diode D5 in rectifier bridge BRIDGE2, dim signal and the power supply split circuit (5) in the rectification circuit (4), resistance R 25～R26 in the LED constant-current source (6), inductance L 2, capacitor C 5～C7, diode D6, IC3 LM3404, the LED1 in the led light source (7), LED2, LEDn;
Rectifier bridge BRIDGE2 carries out the light modulation pulse current to be connected on dim signal and the power supply split circuit (5) after the reversal, dim signal is exported the light modulation end that dim signal is connected to constant current chip LM3404 with power supply split circuit (5) output one tunnel after resistance R 23～R24 connects dividing potential drop, another road is through inductance L 1, on the power end of the power supply that isolating diode D5 takes out through being connected to LED driving constant-current source (6) after capacitor C 4 filtering, by resistance R 25～R26, inductance L 2, capacitor C 5～C7, diode D6, the constant current that the LED that IC3 LM3404 forms drives constant-current source (6) output is connected on the led light source (7), direct driving LED 1, LED2, LEDn.
The effect of invention:
1, solved the light modulation of LED illumination on traditional light modulation circuit.
2, the simulation light-modulating mode of compatible 1～10V.
3, the brightness adjustment control good linearity is not glimmered.
4, circuit and existing circuit compatibility are installed.
5, on using, LED realized the two wires light modulation.
Description of drawings
Fig. 1 is the utility model schematic block circuit diagram.
Fig. 2 is the utility model light modulation precircuit schematic diagram.
Fig. 3 is the utility model civil power light adjusting circuit principle.
Fig. 4 is the utility model 1-10V light adjusting circuit schematic diagram.
Fig. 5 is the AC LED light adjusting circuit schematic diagram of the utility model by the control of MCU microprocessor.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is further specified.
As shown in Figure 1, be the utility model schematic block circuit diagram, it comprises: controllable silicon dimmer (1), electronics dummy load (2), power supply (3), rectification circuit (4), dim signal and power supply split circuit (5), LED drives constant-current source (6), led light source (7), power supply and dim signal drive circuit (8), PWM output circuit (9), light modulation sample circuit (10), tunable optical two-wire system LED lamp body (12);
Wherein tunable optical two-wire system LED lamp body (12) comprises rectification circuit (4), dim signal and power supply split circuit (5), and LED drives constant-current source (6), led light source (7);
Its annexation: civil power (11) divides three the tunnel through the output of controllable silicon dimmer (1), the first via connects electronics dummy load (2), the electronics dummy load plays level and smooth alternating current, the second the tunnel connects light modulation sample circuit (10), Third Road connects power supply (3), the dimmer voltage of light modulation sample circuit (10) output 1-10V links to each other with PWM output circuit (9), PWM output circuit (9) output duty cycle geometric ratio is in the PWM of 1-10V dim signal direct power and dim signal drive circuit (8), after power supply (3) is modulated into the pulse current consistent with the PWM dim signal, and the positive pole of power supply (3) is connected on the tunable optical two-wire system LED lamp body (12) simultaneously, after the pulse current consistent with the PWM dim signal enters tunable optical two-wire system LED lamp body (12), be connected on the rectification circuit (4) in the tunable optical two-wire system LED lamp body (12), the output of rectification circuit (4) is connected with power supply split circuit (5) with dim signal, through dim signal with after power supply split circuit (5) separates, output divides two-way, one tunnel power supply as led light source drives constant-current source (6) with LED and links to each other, the straight-through led light source (7) of output, another road is connected to as the PWM dim signal on the light modulation end of LED driving constant-current source (6);
Controlled step is:
The PWM dim signal removes modulation power source through power supply and dim signal drive circuit (8), the dim signal of the power supply of LED and LED is merged into the power supply that contains light modulation information, send the LED lamp body of tunable optical two-wire system, rectification circuit in the LED lamp body carries out reversal to the power supply that contains light modulation information, the power supply that contains light modulation information after the reversal separates with the LED power supply dim signal with power supply split circuit (5) through dim signal, the light modulation end that isolated dim signal send LED to drive constant-current source, isolated power supply drive constant current source power supply to LED behind capacitor filtering.
Fig. 2 is the utility model light modulation precircuit schematic diagram.
As shown in the figure, it mainly comprises: power supply (3), and rectification circuit (4), dim signal and power supply split circuit (5), LED drives constant-current source (6), led light source (7), power supply and dim signal drive circuit (8), PWM output circuit (9);
Wherein tunable optical two-wire system LED lamp body (12) comprises rectification circuit (4), dim signal and power supply split circuit (5), and LED drives constant-current source (6), led light source (7);
Among the figure, the dim signal that PWM output circuit (9) can use the MCU processor to produce, also can export the dim signal that oscillating circuit produces with PWM, the G that the PWM dim signal that produces by MCU processor or PWM output oscillating circuit is connected to power supply and dim signal drive circuit (8) metal-oxide-semiconductor Q4 extremely goes up, and dim signal is modulated into the pulse current that contains light modulation information to power supply by metal-oxide-semiconductor Q4 and is connected on the tunable optical two-wire system LED lamp body (12);
Resistance R 23～R24, inductance L 1, diode D5 in rectifier bridge BRIDGE2 in the rectification circuit (4) that tunable optical two-wire system LED lamp body (12) comprises, dim signal and the power supply split circuit (5), resistance R 25～R26 in the LED constant-current source (6), inductance L 2, capacitor C 5～C7, diode D6, IC3 LM3404, the LED1 in the led light source (7), LED2, LEDn;
Rectifier bridge BRIDGE2 carries out the electric current that contains light modulation information to be connected on dim signal and the power supply split circuit (5) after the reversal, dim signal is exported the light modulation end that one tunnel dim signal of exporting is connected to constant current chip LM3404 with power supply split circuit (5) after resistance R 23～R24 connects dividing potential drop, another road is through inductance L 1, on the power end of the power supply that isolating diode D5 takes out through being connected to LED driving constant-current source (6) after capacitor C 4 filtering, by resistance R 25～R26, inductance L 2, capacitor C 5～C7, diode D6, the constant current that the LED that IC3 LM3404 forms drives constant-current source (6) output is connected on the led light source (7), direct driving LED 1, LED2, LEDn.
Fig. 3 is the utility model civil power light adjusting circuit principle.
Operation principle: civil power is after controllable silicon dimmer (1) output, export through rectifier bridge BRIDGE1 rectification again, the first via flows to electronics dummy load (2), with level and smooth civil power, for the light modulation sampling is prepared, handle through light modulation sample circuit (10) on another road, 50 or the mains frequency of 60HZ become the dimmer voltage of 1～10V, Third Road makes electronics dummy load (2), light modulation sample circuit (10) isolate with power supply (3) through diode D2, lead to power supply (3) after the isolation, the corresponding group of power supply (3) output voltage is system's power supply.The dimmer voltage of light modulation sample circuit (10) output 1～10V is through the PWM dim signal of PWM output circuit (9) generation with 1～10V duty ratio corresponding, voltage is high more, the PWM dim signal duty ratio of output is big more, otherwise voltage is low more, the PWM dim signal duty ratio of output is more little, the light modulation pwm signal of PWM output circuit (9) output is modulated into the pulse current that contains light modulation information to the supply power voltage of supplying with tunable optical two-wire system LED lamp body (12) and flows to tunable optical two-wire system LED lamp body (12) again after the metal-oxide-semiconductor Q4 of power supply and dim signal drive circuit (8) drives.Described electronics dummy load (2) comprises resistance R 0～R3, R1A～R6A, diode D1, capacitor C 1, metal-oxide-semiconductor Q1～Q2, triode Q0, voltage comparator ic 1 2/2LM393; Resistance R 0～R3 wherein, capacitor C 1, diode D1, triode Q0, metal-oxide-semiconductor Q1 form the omnidistance electronics dummy load of adjusting of dimmer voltage, and voltage comparator ic 1 2/2LM393, resistance R 1A～R6A, metal-oxide-semiconductor Q1 form the electronics dummy load that the dimmer voltage half way is adjusted; Because the voltage through controllable silicon dimmer (1) output is cut, when load was very light, the voltage waveform of controllable silicon dimmer (1) output was a deformity, if there is not electronics dummy load (2), light modulation sample circuit (10) can't normally take out dimmer voltage, therefore, has been incorporated herein the electronics dummy load.But the electronics dummy load is consumed power in vain, and this and design philosophy are contradiction, in order to reduce the electric energy that the electronics dummy load is consumed, is divided into the electronics dummy load that omnidistance electronics dummy load of adjusting and half way are adjusted on electronics dummy load processing method.Because civil power is sinusoidal wave, in the light modulation process, dimmer voltage is cut, when voltage when zero lies prostrate certain section magnitude of voltage, the omnidistance electronics power consumption of adjusting that dummy load consumes is very low, level and smooth civil power, the working point of the electronics dummy load by the adjustment of adjustment half way, the electronics dummy load of half way adjustment also can be worked when zero lies prostrate certain section magnitude of voltage in dimmer voltage, thereby realize level and smooth civil power in low terminal voltage; When voltage during, the only omnidistance electronics dummy load work of adjusting, can reach the purpose that reduces energy consumption again when realizing level and smooth civil power like this from certain section magnitude of voltage to maximum.Described light modulation sample circuit (10) comprises photoelectrical coupler U1, resistance R 5～R10, capacitor C 2, voltage stabilizing didoe ZD1～ZD2, voltage comparator ic 1 1/2LM393; Level and smooth light modulation civil power enters from resistance R 4, through resistance R 5 dividing potential drops, output is received on the voltage stabilizing didoe ZD1, take out the consistent dim signal that changes from the common point of the voltage stabilizing didoe ZD1～ZD2 of series connection with the cut civil power, be connected to the inverting input of voltage comparator ic 1 1/2LM393, resistance R 6～R7 dividing potential drop provides benchmark voltage for the in-phase input end of voltage comparator ic 11/2LM393, the light modulation pulse of output is through resistance R 8, photoelectrical coupler U1 isolates the other end of delivering to photoelectrical coupler U1, again via resistance R 9～R10, obtain the dimmer voltage of 1～10V after the capacitor C 2 composition RC filter circuit filtering, this is low-frequency F → V (voltage to frequency) conversion.The civil power of 50HZ or 60HZ is respectively 100HZ or 120HZ after rectification, after the light modulation sampling also is the square wave of the change in duty cycle of 100HZ or 120HZ, but this 100HZ or the shake of 120HZ square wave are bigger, are not suitable for use in the LED light modulation, so it is changed into the voltage of 1～10V.Described PWM output circuit (9) comprises resistance R 12～R22, capacitor C 3, diode D3～D4, triode Q3, voltage comparator ic 2 1/2LM393 and IC2 2/2LM393, forms PWM output oscillating circuit; Wherein voltage comparator ic 21/2LM393 and resistance R 12～R19, capacitor C 3, diode D3～D4, triode Q3 connects to form triangle wave generating circuit, resistance R 20～R21 is connected in series, the dimmer voltage of 1～10V enters from an end of resistance R 20, common point after resistance R 20～R21 series connection connects the in-phase input end of IC2 2/2LM393, be connected to the inverting input of voltage comparator ic 2 2/2LM393 from the triangular wave of IC2 1/2LM393 in-phase end output, and with resistance R 20～R21 dividing potential drop after level and smooth dimmer voltage relatively, the PWM dim signal that produces, the duty ratio of the PWM dim signal correspondence that the dimmer voltage of 1～10V produces is 0～100%, and the output of PWM dim signal is connected on power supply and the dim signal drive circuit (8).Described power supply and dim signal drive circuit (8) comprise metal-oxide-semiconductor Q4, extremely link to each other with the G of metal-oxide-semiconductor Q4 from the PWM dim signal of PWM output circuit (9) output, and then,, the power supply of tunable optical two-wire system LED lamp body (12) powers to it thereby being modulated into the electric current that contains light modulation information by the power supply that metal-oxide-semiconductor Q4 controls tunable optical two-wire system LED lamp body (12).Receive on the tunable optical two-wire system LED lamp body (12) through two lines by the pulse current that contains light modulation information after the modulation.Described tunable optical two-wire system LED lamp body (12) comprises rectification circuit (4), dim signal and power supply split circuit (5), and LED drives constant-current source (6), led light source (7).Described rectification circuit (4) comprises rectifier bridge BRIDGE2, described dim signal and power supply split circuit (5) comprise resistance R 23～R24, inductance L 1, diode D5, described LED constant-current source (6) comprises resistance R 25～R26, inductance L 2, capacitor C 5～C7, diode D6, IC3 LM3404, described led light source (7) comprises LED1, LED2, LEDn; By containing the pulse current of light modulation information after tunable optical two-wire system LED lamp body (12) is received in the two wires after the modulation, after carrying out reversal to the electric current that contains light modulation information, rectifier bridge BRIDGE2 is connected on dim signal and the power supply split circuit (5), dim signal is connected on the light modulation end of constant current chip LM3404 with power supply split circuit (5) output one tunnel dim signal of exporting after resistance R 23～R24 connects dividing potential drop, another road is through inductance L 1, on the power end of the power supply that isolating diode D5 takes out through being connected to LED driving constant-current source (6) after capacitor C 4 filtering, by resistance R 25～R26, inductance L 2, capacitor C 5～C7, diode D6, the LED that IC3 LM3404 forms drives constant-current source (6) according to dim signal, send the direct driving LED light source of corresponding pulse current (7), thereby realize the light modulation of LED.
Fig. 4 is the utility model 1～10V light adjusting circuit schematic diagram.
As shown in the figure, "+" termination power VDD of 1～10V simulation dimmer, output connecting resistance R20, the light modulation turn-knob of rotation 1～10V simulation dimmer, the dimmer voltage of "-" end output 1～10V of 1～10V simulation dimmer, this voltage through PWM output oscillating circuit just the resistance R 20 in the PWM output circuit (9) and R21 dividing potential drop as the comparative voltage of voltage comparator ic 22/2LM393 in-phase end, and with the triangular wave of the inverting input of voltage comparator ic 2 2/2LM393 relatively, the PWM dim signal of output different duty, this dim signal contains light modulation information after the metal-oxide-semiconductor Q4 of power supply and dim signal drive circuit (8) modulation power supply send tunable optical two-wire system LED lamp body (12), thereby realizes the simulation light modulation of 1～10V.
Fig. 5 is the AC LED light adjusting circuit schematic diagram of the utility model by the control of MCU microprocessor.
As shown in the figure: civil power enters rectifier bridge BRIDGE1 through controllable silicon dimmer (1), after rectifier bridge BRIDGE1 rectification, divide three the tunnel, the first via is connected to electronics dummy load (2), the second the tunnel links to each other with power supply (3) through isolating diode D2, the end of Third Road connecting resistance R27, the other end of resistance R 27 and resistance R 28 are composed in series bleeder circuit, the two ends parallel connection of R28 connects capacitor C 8, resistance R 27～R28, capacitor C 8 is formed the RC filter circuit, regulate controllable silicon dimmer (1), resistance R 27, the dimmer voltage of common point output 1～10V of R28, the dimmer voltage of 1～10V is through the pwm signal of PWM output circuit (9) generation with 1～10V duty ratio corresponding, be connected on the photoelectrical coupler U2 through resistance R 29 with the pwm signal of 1～10V duty ratio corresponding, after the isolation of photoelectrical coupler U2 again via resistance R 30～R31, after F-V conversion (frequency-voltage) the circuit conversion that capacitor C 9 is formed, obtain the simulation dimmer voltage of 0-5V, the simulation dimmer voltage of 0-5V is sent the AD end of MCU microprocessor Attiny13, after MCU microprocessor Attiny13 carries out analog-to-digital conversion, MCU microprocessor Attiny13 sends the PWM dim signal with 0-5V simulation dimmer voltage duty ratio corresponding, this signal is connected on power supply and the dim signal drive circuit (8), the power supply that contains light modulation information after metal-oxide-semiconductor Q4 modulation send tunable optical two-wire system LED lamp body (12), thereby realizes the light modulation of MCU microprocessor as the PWM output circuit.
The utility model is specially adapted to occasion light modulations such as market, hotel, family expenses and uses.
Though the utility model is described with reference to the above embodiments; but those of ordinary skill in the art; the above embodiment that recognizes that should be understood that only is the excellent example of explanation of the present utility model; should understand and wherein can do each and change and revise and on Fang Yi, do not break away from this utility model; so be not as qualification of the present utility model; as long as in connotation scope of the present utility model, to the variation distortion of above-described enforcement or revise the protection range that all will fall into the utility model claim.
Claims (7)
1, a kind of two-wire system can be accepted the LED control device of multiple dimming mode, it comprises: controllable silicon dimmer (1), electronics dummy load (2), power supply (3), rectification circuit (4), dim signal and power supply split circuit (5), LED drives constant-current source (6), led light source (7), power supply and dim signal drive circuit (8), PWM output circuit (9), light modulation sample circuit (10);
Its annexation: civil power (11) divides three the tunnel through the output of controllable silicon dimmer (1), the first via connects electronics dummy load (2), the second the tunnel connects light modulation sample circuit (10), Third Road connects power supply (3), the dimmer voltage of light modulation sample circuit (10) output 1-10V links to each other with PWM output circuit (9), PWM output circuit (9) output duty cycle geometric ratio is connected with dim signal drive circuit (8) with power supply in the PWM of 1-10V dim signal, be modulated into power supply (3) behind the pulse current consistent and the positive pole of power supply (3) is connected on the tunable optical two-wire system LED lamp body (12) simultaneously with the PWM dim signal, after the pulse current consistent with the PWM dim signal enters tunable optical two-wire system LED lamp body (12), be connected on the rectification circuit (4) in the tunable optical two-wire system LED lamp body (12), the output of rectification circuit (4) is connected with power supply split circuit (5) with dim signal, through dim signal with after power supply split circuit (5) separates, output divides two-way, one tunnel power supply as led light source drives constant-current source (6) with LED and links to each other, the straight-through led light source (7) of output, another road is connected to as the PWM dim signal on the light modulation end of LED driving constant-current source (6).
2, a kind of two-wire system according to claim 1 can be accepted the LED control device of multiple dimming mode, it is characterized in that:
Described tunable optical two-wire system LED lamp body (12) comprises rectification circuit (4), dim signal and power supply split circuit (5), and LED drives constant-current source (6), led light source (7).
3, a kind of two-wire system according to claim 1 can be accepted the LED control device of multiple dimming mode, it is characterized in that:
Described PWM output circuit (9) comprises resistance R 12～R22, capacitor C 3, diode D3～D4, triode Q3, voltage comparator ic 21/2LM393 and IC22/2LM393;
Voltage comparator ic 2 1/2LM393 and resistance R 12～R19, capacitor C 3, diode D3～D4, triode Q3 connect to form triangle wave generating circuit, resistance R 20～R21 is connected in series, common point after the series connection connects the in-phase input end of IC2 2/2LM393, be connected to the inverting input of voltage comparator ic 2 2/2LM393 from the triangular wave of IC2 1/2LM393 in-phase end output, and after the institute's dividing potential drop of connecting with R20～R21 level and smooth dimmer voltage relatively, the PWM dim signal of generation is connected on power supply and the dim signal drive circuit (8).
4, a kind of two-wire system according to claim 1 can be accepted the LED control device of multiple dimming mode, it is characterized in that:
Described PWM output circuit (9) can also be MCU processor or PWM output oscillating circuit, the PWM dim signal that produces by MCU processor or PWM output oscillating circuit is connected on power supply and dim signal drive circuit (8) the metal-oxide-semiconductor Q4, and dim signal is modulated into the electric current that contains light modulation information to power supply by metal-oxide-semiconductor Q4 and is connected on the tunable optical two-wire system LED lamp body (12).
5, a kind of two-wire system according to claim 1 can be accepted the LED control device of multiple dimming mode, it is characterized in that:
Described light modulation sample circuit (10) comprises photoelectrical coupler U1, resistance R 5～R10, capacitor C 2, voltage stabilizing didoe ZD1～ZD2, voltage comparator ic 1 1/2LM393.
6, a kind of two-wire system according to claim 1 can be accepted the LED control device of multiple dimming mode, it is characterized in that:
Described electronics dummy load (2) comprises resistance R 0～R3, R1A～R6A, diode D1, capacitor C 1, metal-oxide-semiconductor Q1～Q2, triode Q0, voltage comparator ic 1 2/2LM393.
7, a kind of two-wire system according to claim 2 can be accepted the LED control device of multiple dimming mode, it is characterized in that:
Described tunable optical two-wire system LED lamp body (12) comprises resistance R 23～R24, inductance L 1, the diode D5 in rectifier bridge BRIDGE2, dim signal and the power supply split circuit (5) in the rectification circuit (4), resistance R 25～R26 in the LED constant-current source (6), inductance L 2, capacitor C 5～C7, diode D6, IC3 LM3404, the LED1 in the led light source (7), LED2, LEDn;
Rectifier bridge BRIDGE2 carries out the light modulation pulse current to be connected on dim signal and the power supply split circuit (5) after the reversal, dim signal is exported the light modulation end that dim signal is connected to constant current chip LM3404 with power supply split circuit (5) output one tunnel after resistance R 23～R24 connects dividing potential drop, another road is through inductance L 1, on the power end of the power supply that isolating diode D5 takes out through being connected to LED driving constant-current source (6) after capacitor C 4 filtering, by resistance R 25～R26, inductance L 2, capacitor C 5～C7, diode D6, the constant current that the LED that IC3LM3404 forms drives constant-current source (6) output is connected on the led light source (7), direct driving LED 1, LED2, LEDn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201135186U CN201303444Y (en) | 2008-11-04 | 2008-11-04 | Two-wire LED control device capable of accepting various light dimming methods |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201135186U CN201303444Y (en) | 2008-11-04 | 2008-11-04 | Two-wire LED control device capable of accepting various light dimming methods |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201303444Y true CN201303444Y (en) | 2009-09-02 |
Family
ID=41087073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201135186U Expired - Fee Related CN201303444Y (en) | 2008-11-04 | 2008-11-04 | Two-wire LED control device capable of accepting various light dimming methods |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201303444Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261583A (en) * | 2010-05-24 | 2011-11-30 | 台达电子工业股份有限公司 | Light source module |
| WO2012051760A1 (en) * | 2010-10-22 | 2012-04-26 | 达能科技股份有限公司 | Dual-circuit led lamp tube and lamp set |
| CN103702493A (en) * | 2014-01-09 | 2014-04-02 | 广德利德光电有限公司 | Two-wire LED (Light Emitting Diode) signal modulation method |
| CN103982796A (en) * | 2014-05-21 | 2014-08-13 | 苏州光翼光电科技有限公司 | High-convenience and high-reliability LED (Light-Emitting Diode) lamp tube |
| US8810143B2 (en) | 2011-06-16 | 2014-08-19 | Delta Electronics (Shanghai) Co., Ltd. | Dimmer system and control system and method thereof |
| CN107208845A (en) * | 2015-02-06 | 2017-09-26 | Lg 伊诺特有限公司 | Drive the device of light emitting diode and the light emitting module including device |
| CN108289358A (en) * | 2018-04-08 | 2018-07-17 | 广东工业大学 | A kind of light adjusting circuit and method of compatible multi-dimming signal |
| CN109546852A (en) * | 2018-12-25 | 2019-03-29 | 中山市卓越制品有限公司 | A kind of switching power source control circuit of high power factor |
-
2008
- 2008-11-04 CN CNU2008201135186U patent/CN201303444Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102261583A (en) * | 2010-05-24 | 2011-11-30 | 台达电子工业股份有限公司 | Light source module |
| WO2012051760A1 (en) * | 2010-10-22 | 2012-04-26 | 达能科技股份有限公司 | Dual-circuit led lamp tube and lamp set |
| US8810143B2 (en) | 2011-06-16 | 2014-08-19 | Delta Electronics (Shanghai) Co., Ltd. | Dimmer system and control system and method thereof |
| CN103702493A (en) * | 2014-01-09 | 2014-04-02 | 广德利德光电有限公司 | Two-wire LED (Light Emitting Diode) signal modulation method |
| CN103982796A (en) * | 2014-05-21 | 2014-08-13 | 苏州光翼光电科技有限公司 | High-convenience and high-reliability LED (Light-Emitting Diode) lamp tube |
| CN107208845A (en) * | 2015-02-06 | 2017-09-26 | Lg 伊诺特有限公司 | Drive the device of light emitting diode and the light emitting module including device |
| CN107208845B (en) * | 2015-02-06 | 2019-11-15 | Lg伊诺特有限公司 | Drive the device of light emitting diode and the light emitting module including device |
| CN108289358A (en) * | 2018-04-08 | 2018-07-17 | 广东工业大学 | A kind of light adjusting circuit and method of compatible multi-dimming signal |
| CN108289358B (en) * | 2018-04-08 | 2024-05-14 | 广东工业大学 | Dimming method compatible with multiple dimming signals |
| CN109546852A (en) * | 2018-12-25 | 2019-03-29 | 中山市卓越制品有限公司 | A kind of switching power source control circuit of high power factor |
| CN109546852B (en) * | 2018-12-25 | 2024-03-19 | 中山市卓越制品有限公司 | High-power factor switching power supply control circuit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101404840A (en) | Two-wire system light-adjustable LED controller | |
| CN201303444Y (en) | Two-wire LED control device capable of accepting various light dimming methods | |
| CN103139992B (en) | With the LED dimming drive system of controllable silicon bypass light adjusting circuit | |
| CN101420802A (en) | The LED constant-current source that is used for the AC controllable silicon light modulation mode of illuminator | |
| CN101330785A (en) | High voltage AC light-adjusting controller for general constant-current LED | |
| CN205946280U (en) | Module of adjusting luminance and application product thereof | |
| CN209462651U (en) | Toning dimming LED lamp | |
| CN201813599U (en) | LED (Light-Emitting Diode) dimmer power | |
| CN202206617U (en) | Constant-current dimming driving power supply for LED lighting | |
| CN108650748A (en) | A kind of constant pressure dimming power source device being compatible with a variety of dimming modes | |
| CN103152932A (en) | LED (Light Emitting Diode) drive circuit capable of adjusting light and color temperature | |
| CN106954315A (en) | The driving power supply and television set of a kind of connection in series-parallel LED light bar network | |
| CN105072782A (en) | Circuit and method for controlling two paths of lamps through 0-10V analog signals | |
| CN201757323U (en) | Flicker-free LED MR16 spotlight with dimming function | |
| CN103634986B (en) | Multichannel light modulating device and light-dimming method thereof | |
| CN201307960Y (en) | LED constant-current source of alternating current controlled silicon dimming mode | |
| CN205408213U (en) | Have LED drive circuit that bluetooth was adjusted luminance and TRIAC adjusts luminance concurrently | |
| CN109699105A (en) | A kind of LED filament circuit for lamp of remote-controlled light modulation | |
| CN101852374A (en) | Unflickering LED MR16 spot light with light regulating function | |
| CN209151403U (en) | LED light adjusting circuit | |
| CN107995751A (en) | A kind of LED drive circuit | |
| CN203167350U (en) | LED drive circuit with capabilities of light modulation and color temperature adjustment | |
| CN208479985U (en) | LED light adjusting system | |
| CN207911069U (en) | Constant current output high pressure dimming driver | |
| CN207911082U (en) | A kind of Crystal lamp illumination light modulation color-temperature regulating equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090902 Termination date: 20101104 |