CN104684182A - Three-channel high-power LED (Light Emitting Diode) drive circuit - Google Patents
Three-channel high-power LED (Light Emitting Diode) drive circuit Download PDFInfo
- Publication number
- CN104684182A CN104684182A CN201310641927.9A CN201310641927A CN104684182A CN 104684182 A CN104684182 A CN 104684182A CN 201310641927 A CN201310641927 A CN 201310641927A CN 104684182 A CN104684182 A CN 104684182A
- Authority
- CN
- China
- Prior art keywords
- connects
- current
- limiting resistance
- triple channel
- chip
- 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.)
- Pending
Links
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
The invention discloses a three-channel high-power LED (Light Emitting Diode) drive circuit. The circuit comprises a blue light path L1, a red light path L2, a green light path L3, current-limiting resistors R1-R5, filter capacitors C1-C3, a three-channel drive chip U1 and an enable control module U2, wherein the enabled control module U2 is used for generating enable signals and controlling an enable end of the three-channel drive chip U1; when the enable signals generated by the enable control module U2 are at high level, the enable end of the corresponding three-channel drive chip U1 is at high level, the light path corresponding to the enable end is switched on, current flows through the light path, and the light path works and emits light; when the enable signals generated by the enable control module U2 are at low level, the enable end of the corresponding three-channel drive chip U1 is at low level, and the light path corresponding to the enable end is switched off. Through the implementation of the three-channel high-power LED drive circuit, the dimming and toning of combination of monochromatic light of an LED can be simplified.
Description
Technical field
The present invention relates to electronic circuit technology field, be specifically related to a kind of triple channel high-power LED drive circuit.
Background technology
Along with the development of LED technology, LED not only usage quantity gets more and more, and the scope of application is also more and more wider.Need colorful display, illumination place, too expensive with the full color LED sign of specialty, and with LED monochromatic light recombinant together, although cost is low, light modulation, mix colours very loaded down with trivial details.
Summary of the invention
The embodiment of the invention discloses a kind of triple channel high-power LED drive circuit, for simplifying light modulation and the toning of the combination of LED monochromatic light.
A kind of triple channel high-power LED drive circuit, comprising:
Blue light path L1, ruddiness path L2, green glow path L3, current-limiting resistance R1 ~ R5, filter capacitor C1 ~ C3, triple channel driving chip U1, make energy control module U2, wherein:
The input IN of described blue light path L1 is for connecting power supply, the output OUT of described blue light path L1 connects one end of described filter capacitor C1, the other end of described filter capacitor C1 is used for connecting earth terminal, the input IN of described ruddiness path L2 is for connecting power supply, the output OUT of described ruddiness path L2 connects one end of described filter capacitor C2, the other end of described filter capacitor C2 is used for connecting earth terminal, the input IN of described green glow path L3 is for connecting power supply, the output OUT of described green glow path L3 connects one end of described filter capacitor C3, the other end of described filter capacitor C3 is used for connecting earth terminal, one end of described current-limiting resistance R4 is for connecting power supply, the other end of described current-limiting resistance R4 connects the power end VCC of described triple channel driving chip U1, the ground end GND of described triple channel driving chip U1 is used for connecting earth terminal, the constant current output end OUTB of described triple channel driving chip U1 connects the output OUT of described blue light path L1, the plug-in resistance terminal REXIB of described triple channel driving chip U1 connects one end of described current-limiting resistance R1, the other end of described current-limiting resistance R1 is used for connecting earth terminal, the plug-in resistance terminal REXIR of described triple channel driving chip U1 connects one end of described current-limiting resistance R2, the other end of described current-limiting resistance R2 is used for connecting earth terminal, the constant current output end OUTR of described triple channel driving chip U1 connects the output OUT of described ruddiness path L2, the constant current output end OUTG of described triple channel driving chip U1 connects the output OUT of described green glow path L3, the plug-in resistance terminal REXIG of described triple channel driving chip U1 connects one end of described current-limiting resistance R3, the other end of described current-limiting resistance R3 is used for connecting earth terminal, the Enable Pin ENR of described triple channel driving chip U1, the output 2 of energy control module U2 is made described in ENG with ENB is connected respectively, 3 and 4, one end of described current-limiting resistance R5 is for connecting power supply, the power input 1 of energy control module U2 is made described in the other end connection of described current-limiting resistance R5, described enable signal for generation of enable signal, and is sent to described triple channel driving chip U1 by the described energy control module U2 that makes, the described enable signal of described triple channel driving chip U1 for making energy control module U2 send described in receiving, and the operating state of different light path is controlled according to described enable signal.
Wherein, described circuit also comprises:
Voltage stabilizing didoe ZD1 ~ ZD2, filter capacitor C4 ~ C5, wherein:
The negative pole of described voltage stabilizing didoe ZD1 connects the other end of described current-limiting resistance R4, the positive pole of described voltage stabilizing didoe ZD1 connects the ground end GND of described triple channel driving chip U1, described filter capacitor C4 is connected in parallel described voltage stabilizing didoe ZD1, the negative pole of described voltage stabilizing didoe ZD2 connects the other end of described current-limiting resistance R5, the positive pole of described voltage stabilizing didoe ZD2 is used for connecting earth terminal, and described filter capacitor C5 is connected in parallel described voltage stabilizing didoe ZD2.
Wherein, described blue light path L1 comprises blue-ray LED diode D1 ~ D3, wherein:
The positive pole of described blue-ray LED diode D1 is for connecting power supply, the negative pole of described blue-ray LED diode D1 connects the positive pole of described blue-ray LED diode D2, the negative pole of described blue-ray LED diode D2 connects the positive pole of described blue-ray LED diode D3, and the negative pole of described blue-ray LED diode D3 connects one end of described filter capacitor C1.
Wherein, described ruddiness path L2 comprises red-light LED diode D4 ~ D6, wherein:
The positive pole of described red-light LED diode D4 is for connecting power supply, the negative pole of described red-light LED diode D4 connects the positive pole of described red-light LED diode D5, the negative pole of described red-light LED diode D5 connects the positive pole of described red-light LED diode D6, and the negative pole of described red-light LED diode D6 connects one end of described filter capacitor C2.
Wherein, described green glow path L3 comprises green light LED diode D7 ~ D9, wherein:
The positive pole of described green light LED diode D7 is for connecting power supply, the negative pole of described green light LED diode D7 connects the positive pole of described green light LED diode D8, the negative pole of described green light LED diode D8 connects the positive pole of described green light LED diode D9, and the negative pole of described green light LED diode D9 connects one end of described filter capacitor C3.
Wherein, energy control module U2 is made to comprise described in:
Current-limiting resistance R6 ~ R9, enable control chip U3, process chip U4, crystal oscillator pipe Y1, wherein:
One end of described current-limiting resistance R6 connects the other end of described current-limiting resistance R5, the current output terminal ROUT of described enable control chip U3 connects the other end of described current-limiting resistance R6 and the Enable Pin ENR of described triple channel driving chip U1 respectively, one end of described current-limiting resistance R7 connects one end of described current-limiting resistance R6, the current output terminal GOUT of described enable control chip U3 connects the other end of described current-limiting resistance R7 and the Enable Pin ENG of described triple channel driving chip U1 respectively, one end of described current-limiting resistance R8 connects one end of described current-limiting resistance R6, the current output terminal BOUT of described enable control chip U3 connects the other end of described current-limiting resistance R8 and the Enable Pin ENB of described triple channel driving chip U1 respectively, the current polarity selecting side POL of described enable control chip U3, ground end GND, plug-in resistance terminal RREX, plug-in resistance terminal GREX and plug-in resistance terminal BREX is used for connecting earth terminal, the power end VCC of described enable control chip U3 connects one end of described current-limiting resistance R6, serial data input DAI and the clock signal input terminal CKI of described enable control chip U3 are connected serial data output terminal SDO and the clock signal output terminal CKO of described process chip U4 respectively, the power end VCC of described process chip U4 connects one end of described current-limiting resistance R6, the ground end GND of described process chip U4 is used for connecting earth terminal, external crystal oscillator end XO and the XI of described process chip U4 connects one end of described crystal oscillator pipe Y1 respectively, the reset terminal RST of described process chip U4 connects one end of described current-limiting resistance R9, the other end of described current-limiting resistance R9 connects one end of described current-limiting resistance R6, described process chip U4 is used for producing data-signal and clock signal according to the program of write, and described data-signal and clock signal is sent to described enable control chip U3, described enable control chip U3 is for receiving described data-signal and the clock signal of described process chip U4 transmission, and produce described enable signal according to described data-signal and clock signal, and described enable signal is sent to described triple channel driving chip U1.
Alternatively, the model of described triple channel driving chip U1 is DD313.
Alternatively, the model of described enable control chip U3 is DM413.
Alternatively, the model of described process chip U4 is 8051.
Alternatively, described power supply is the alternating current of 12-18V.
In the embodiment of the present invention, make energy control module U2 for generation of enable signal and control the Enable Pin of triple channel driving chip U1, when the enable signal making energy control module U2 produce is high level, the Enable Pin of corresponding triple channel driving chip U1 is high level, the light path conducting that Enable Pin is corresponding, electric current is had to flow through light path, light path work is also luminous, when the enable signal making energy control module U2 produce is low level, the Enable Pin of corresponding triple channel driving chip U1 is low level, the light path disconnection that Enable Pin is corresponding.In the embodiment of the present invention, the color of lamp can be controlled by the enable signal making energy control module produce, therefore, light modulation and the toning of LED monochromatic light combination can be simplified.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structure chart of a kind of triple channel high-power LED drive circuit disclosed by the invention;
Fig. 2 is the structure chart of another kind of triple channel high-power LED drive circuit disclosed by the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the invention discloses a kind of triple channel high-power LED drive circuit, for simplifying light modulation and the toning of the combination of LED monochromatic light.Below be described in detail respectively.
Refer to Fig. 1, Fig. 1 is a kind of triple channel high-power LED drive circuit disclosed in the embodiment of the present invention.As shown in Figure 1, this triple channel high-power LED drive circuit can comprise:
Blue light path L1, ruddiness path L2, green glow path L3, current-limiting resistance R1 ~ R5, filter capacitor C1 ~ C3, triple channel driving chip U1, make energy control module U2, wherein:
The input IN of blue light path L1 is for connecting power supply, the output OUT of blue light path L1 connects one end of filter capacitor C1, the other end of filter capacitor C1 is used for connecting earth terminal, the input IN of ruddiness path L2 is for connecting power supply, the output OUT of ruddiness path L2 connects one end of filter capacitor C2, the other end of filter capacitor C2 is used for connecting earth terminal, the input IN of green glow path L3 is for connecting power supply, the output OUT of green glow path L3 connects one end of filter capacitor C3, the other end of filter capacitor C3 is used for connecting earth terminal, one end of current-limiting resistance R4 is for connecting power supply, the power end VCC of the other end connecting tee road driving chip U1 of current-limiting resistance R4, the ground end GND of triple channel driving chip U1 is used for connecting earth terminal, the constant current output end OUTB of triple channel driving chip U1 connects the output OUT of blue light path L1, the plug-in resistance terminal REXIB of triple channel driving chip U1 connects one end of current-limiting resistance R1, the other end of current-limiting resistance R1 is used for connecting earth terminal, the plug-in resistance terminal REXIR of triple channel driving chip U1 connects one end of current-limiting resistance R2, the other end of current-limiting resistance R2 is used for connecting earth terminal, the constant current output end OUTR of triple channel driving chip U1 connects the output OUT of ruddiness path L2, the constant current output end OUTG of triple channel driving chip U1 connects the output OUT of green glow path L3, the plug-in resistance terminal REXIG of triple channel driving chip U1 connects one end of current-limiting resistance R3, the other end of current-limiting resistance R3 is used for connecting earth terminal, the Enable Pin ENR of triple channel driving chip U1, ENG with ENB is connected the output 2 making energy control module U2 respectively, 3 and 4, one end of current-limiting resistance R5 is for connecting power supply, the other end of current-limiting resistance R5 connects the power input 1 making energy control module U2, make energy control module U2 for generation of enable signal, and enable signal is sent to triple channel driving chip U1, triple channel driving chip U1 for receiving the enable signal making energy control module U2 send, and controls the operating state of different light path according to enable signal.
Wherein, the operation principle of the triple channel high-power LED drive circuit shown in Fig. 1 is: L1 is blue light path, L2 is ruddiness path, L3 is green glow path, R1 ~ R5 is current-limiting resistance, C1 ~ C3 is filter capacitor, U1 is triple channel driving chip, U2 is for making energy control module; Make energy control module U2 for generation of enable signal, and enable signal is sent to triple channel driving chip U1, triple channel driving chip U1 controls the operating state of light path according to enable signal; When the enable signal making the output 2 of energy control module U2 export is low level, the Enable Pin ENR of triple channel driving chip U1 is low level, ruddiness path L2 disconnects, ruddiness path L2 does not have electric current to flow through, and ruddiness path L2 does not work, when the enable signal making the output 2 of energy control module U2 export is high level, the Enable Pin ENR of triple channel driving chip U1 is high level, ruddiness path L2 conducting, ruddiness path L2 has electric current to flow through, and ruddiness path L2 works and sends red light; When the enable signal making the output 3 of energy control module U2 export is low level, the Enable Pin ENG of triple channel driving chip U1 is low level, green glow path L3 disconnects, green glow path L3 does not have electric current to flow through, and green glow path L3 does not work, when the enable signal making the output 3 of energy control module U2 export is high level, the Enable Pin ENG of triple channel driving chip U1 is high level, green glow path L3 conducting, green glow path L3 has electric current to flow through, and green glow path L3 works and sends green light; When the enable signal making the output 4 of energy control module U2 export is low level, the Enable Pin ENB of triple channel driving chip U1 is low level, blue light path L1 disconnects, blue light path L1 does not have electric current to flow through, and blue light path L1 does not work, when the enable signal making the output 4 of energy control module U2 export is high level, the Enable Pin ENB of triple channel driving chip U1 is high level, blue light path L1 conducting, blue light path L1 has electric current to flow through, and blue light path L1 works and sends blue light; Make the output 2,3 and 4 of energy control module U2 can export a high level, control triple channel driving chip U1 work and only send single blue light, ruddiness or green glow, make the output 2,3 and 4 of energy control module U2 also can export two high level, control triple channel driving chip U1 to work and the mixed light sending bluish-green, blue red or red green two kinds of light, make the output 2,3 and 4 of energy control module U2 can also export three high level, control triple channel driving chip U1 and work and send the mixed light of bluish-green red three kinds of light.Wherein, filter capacitor C1 ~ C3 is used for the voltage stablizing triple channel driving chip U1 constant current output end OUTB, OUTR and OUTG.
Above, be exactly scheme and the principles and methods of the embodiment of the present invention 1, summing up is exactly the Enable Pin making energy control module U2 for generation of enable signal and control triple channel driving chip U1, when the enable signal making energy control module U2 produce is high level, the Enable Pin of corresponding triple channel driving chip U1 is high level, the light path conducting that Enable Pin is corresponding, electric current is had to flow through light path, light path work is also luminous, when the enable signal making energy control module U2 produce is low level, the Enable Pin of corresponding control triple channel driving chip U1 is low level, the light path disconnection that Enable Pin is corresponding.
Triple channel high-power LED drive circuit disclosed in the embodiment of the present invention can control the color of lamp by the enable signal making energy control module produce, therefore, can simplify light modulation and the toning of LED monochromatic light combination.
Refer to Fig. 2, Fig. 2 is another kind of triple channel high-power LED drive circuit disclosed in the embodiment of the present invention.Wherein, triple channel high-power LED drive circuit shown in Fig. 2 is optimized the triple channel high-power LED drive circuit shown in Fig. 1 to obtain, compared with the triple channel high-power LED drive circuit shown in Fig. 1, the triple channel high-power LED drive circuit shown in Fig. 2 can also comprise:
Voltage stabilizing didoe ZD1 ~ ZD2, filter capacitor C4 ~ C5, wherein:
The negative pole of voltage stabilizing didoe ZD1 connects the other end of current-limiting resistance R4, the ground end GND of the positive pole connecting tee road driving chip U1 of voltage stabilizing didoe ZD1, filter capacitor C4 is connected in parallel voltage stabilizing didoe ZD1, the negative pole of voltage stabilizing didoe ZD2 connects the other end of current-limiting resistance R5, the positive pole of voltage stabilizing didoe ZD2 is used for connecting earth terminal, and filter capacitor C5 is connected in parallel voltage stabilizing didoe ZD2.
Wherein, blue light path L1 can comprise blue-ray LED diode D1 ~ D3, wherein:
The positive pole of blue-ray LED diode D1 is for connecting power supply, the negative pole of blue-ray LED diode D1 connects the positive pole of blue-ray LED diode D2, the negative pole of blue-ray LED diode D2 connects the positive pole of blue-ray LED diode D3, and the negative pole of blue-ray LED diode D3 connects one end of filter capacitor C1.
Wherein, ruddiness path L2 can comprise red-light LED diode D4 ~ D6, wherein:
The positive pole of red-light LED diode D4 is for connecting power supply, the negative pole of red-light LED diode D4 connects the positive pole of red-light LED diode D5, the negative pole of red-light LED diode D5 connects the positive pole of red-light LED diode D6, and the negative pole of red-light LED diode D6 connects one end of filter capacitor C2.
Wherein, green glow path L3 can comprise green light LED diode D7 ~ D9, wherein:
The positive pole of green light LED diode D7 is for connecting power supply, the negative pole of green light LED diode D7 connects the positive pole of green light LED diode D8, the negative pole of green light LED diode D8 connects the positive pole of green light LED diode D9, and the negative pole of green light LED diode D9 connects one end of filter capacitor C3.
Wherein, energy control module U2 is made to comprise:
Current-limiting resistance R6 ~ R9, enable control chip U3, process chip U4, crystal oscillator pipe Y1, wherein:
One end of current-limiting resistance R6 connects the other end of described current-limiting resistance R5, the current output terminal ROUT of enable control chip U3 connects the other end of current-limiting resistance R6 and the Enable Pin ENR of triple channel driving chip U1 respectively, one end of current-limiting resistance R7 connects one end of current-limiting resistance R6, the current output terminal GOUT of enable control chip U3 connects the other end of current-limiting resistance R7 and the Enable Pin ENG of triple channel driving chip U1 respectively, one end of current-limiting resistance R8 connects one end of current-limiting resistance R6, the current output terminal BOUT of enable control chip U3 connects the other end of current-limiting resistance R8 and the Enable Pin ENB of triple channel driving chip U1 respectively, the current polarity selecting side POL of enable control chip U3, ground end GND, plug-in resistance terminal RREX, plug-in resistance terminal GREX and plug-in resistance terminal BREX is used for connecting earth terminal, the power end VCC of enable control chip U3 connects one end of current-limiting resistance R6, the serial data output terminal SDO of the serial data input DAI of enable control chip U3 and clock signal input terminal CKI difference connection handling chip U4 and clock signal output terminal CKO, the power end VCC of process chip U4 connects one end of current-limiting resistance R6, the ground end GND of process chip U4 is used for connecting earth terminal, external crystal oscillator end XO and the XI of process chip U4 connects one end of crystal oscillator pipe Y1 respectively, the reset terminal RST of process chip U4 connects one end of current-limiting resistance R9, the other end of current-limiting resistance R9 connects one end of current-limiting resistance R6, process chip U4 is used for producing data-signal and clock signal according to the program of write, and data-signal and clock signal are sent to enable control chip U3, enable control chip U3 for receiving data-signal and the clock signal of process chip U4 transmission, and produces enable signal according to data-signal and clock signal, and enable signal is sent to triple channel driving chip U1.
Alternatively, the model of triple channel driving chip U1 is DD313.
Alternatively, the model of enable control chip U3 is DM413.
Alternatively, the model of process chip U4 is 8051.
Alternatively, power supply is the alternating current of 12-18V.
Wherein, the operation principle of the triple channel high-power LED drive circuit shown in Fig. 2 is: D1 ~ D3 is blue-ray LED diode, D4 ~ D6 is red-light LED diode, D7 ~ D9 is green light LED diode, R1 ~ R5 is current-limiting resistance, C1 ~ C5 is filter capacitor, ZD1 ~ ZD2 is voltage stabilizing didoe, U1 is triple channel driving chip, R6 ~ R9 is current-limiting resistance, U3 is enable control chip, U4 is process chip, Y1 is crystal oscillator pipe; Process chip U4 produces data-signal and clock signal according to the program of write, and data-signal and clock signal are sent to enable control chip U3, enable control chip U3 produces enable signal according to the data-signal received and clock signal, and the Enable Pin of triple channel driving chip U1 is sent to from the current output terminal of enable control chip U3, triple channel driving chip U1 controls the operating state of light path according to enable signal; When the enable signal making the output 2 of energy control module U2 export is low level, the Enable Pin ENR of triple channel driving chip U1 is low level, ruddiness path L2 disconnects, ruddiness path L2 does not have electric current to flow through, red-light LED diode D4 ~ D6 does not work, when the enable signal making the output 2 of energy control module U2 export is high level, the Enable Pin ENR of triple channel driving chip U1 is high level, ruddiness path L2 conducting, ruddiness path L2 has electric current to flow through, and red-light LED diode D4, D5 and D6 work and send red light; When the enable signal making the output 3 of energy control module U2 export is low level, the Enable Pin ENG of triple channel driving chip U1 is low level, green glow path L3 disconnects, green glow path L3 does not have electric current to flow through, green light LED diode D7 ~ D9 does not work, when the enable signal making the output 3 of energy control module U2 export is high level, the Enable Pin ENG of triple channel driving chip U1 is high level, green glow path L3 conducting, green glow path L3 has electric current to flow through, and green light LED diode D7, D8 and D9 work and send green light; When the enable signal making the output 4 of energy control module U2 export is low level, the Enable Pin ENB of triple channel driving chip U1 is low level, blue light path L1 disconnects, blue light path L1 does not have electric current to flow through, blue-ray LED diode D1 ~ D3 does not work, when the enable signal making the output 4 of energy control module U2 export is high level, the Enable Pin ENB of triple channel driving chip U1 is high level, blue light path L1 conducting, blue light path L1 has electric current to flow through, and blue-ray LED diode D1, D2 and D3 work and send blue light; Make the output 2,3 and 4 of energy control module U2 can export a high level, control triple channel driving chip U1 work and only send single blue light, ruddiness or green glow, make the output 2,3 and 4 of energy control module U2 also can export two high level, control triple channel driving chip U1 to work and the mixed light sending bluish-green, blue red or red green two kinds of light, make the output 2,3 and 4 of energy control module U2 can also export three high level, control triple channel driving chip U1 and work and send the mixed light of bluish-green red three kinds of light.Wherein, the VCC of triple channel driving chip U1 power end and ground hold voltage stabilization between GND at 5.1V by voltage stabilizing didoe ZD1, can reduce the operating voltage of triple channel driving chip U1, thus can reduce power consumption; The stable operating voltage of enable control chip U3 and process chip U4 at 3.3V, can be reduced the operating voltage of enable control chip U3 and process chip U4, thus can reduce power consumption by voltage stabilizing didoe ZD2; Filter capacitor C1 ~ C3 is used for the voltage stablizing triple channel driving chip U1 constant current output end OUTB, OUTR and OUTG.
Above, be exactly scheme and the principles and methods of the embodiment of the present invention 2, sum up is exactly that process chip U4 produces data-signal and clock signal according to the program of write, and data-signal and clock signal are sent to enable control chip U3, enable control chip U3 produces enable signal according to the data-signal received and clock signal, the Enable Pin of triple channel driving chip U1 is sent to from the current output terminal of enable control chip U3, when the enable signal that enable control chip U3 produces is high level, the Enable Pin of corresponding control triple channel driving chip U1 is high level, the light path conducting that Enable Pin is corresponding, electric current is had to flow through light path, light path work is also luminous, when the enable signal that enable control chip U3 produces is low level, the Enable Pin of corresponding control triple channel driving chip U1 is low level, the light path disconnection that Enable Pin is corresponding.
Triple channel high-power LED drive circuit disclosed in the embodiment of the present invention according to the color of the program control lamp of write, therefore, can simplify light modulation and the toning of LED monochromatic light combination.
Above the triple channel high-power LED drive circuit that the embodiment of the present invention provides is described in detail, apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. a triple channel high-power LED drive circuit, is characterized in that, comprising:
Blue light path L1, ruddiness path L2, green glow path L3, current-limiting resistance R1 ~ R5, filter capacitor C1 ~ C3, triple channel driving chip U1, make energy control module U2, wherein:
The input IN of described blue light path L1 is for connecting power supply, the output OUT of described blue light path L1 connects one end of described filter capacitor C1, the other end of described filter capacitor C1 is used for connecting earth terminal, the input IN of described ruddiness path L2 is for connecting power supply, the output OUT of described ruddiness path L2 connects one end of described filter capacitor C2, the other end of described filter capacitor C2 is used for connecting earth terminal, the input IN of described green glow path L3 is for connecting power supply, the output OUT of described green glow path L3 connects one end of described filter capacitor C3, the other end of described filter capacitor C3 is used for connecting earth terminal, one end of described current-limiting resistance R4 is for connecting power supply, the other end of described current-limiting resistance R4 connects the power end VCC of described triple channel driving chip U1, the ground end GND of described triple channel driving chip U1 is used for connecting earth terminal, the constant current output end OUTB of described triple channel driving chip U1 connects the output OUT of described blue light path L1, the plug-in resistance terminal REXIB of described triple channel driving chip U1 connects one end of described current-limiting resistance R1, the other end of described current-limiting resistance R1 is used for connecting earth terminal, the plug-in resistance terminal REXIR of described triple channel driving chip U1 connects one end of described current-limiting resistance R2, the other end of described current-limiting resistance R2 is used for connecting earth terminal, the constant current output end OUTR of described triple channel driving chip U1 connects the output OUT of described ruddiness path L2, the constant current output end OUTG of described triple channel driving chip U1 connects the output OUT of described green glow path L3, the plug-in resistance terminal REXIG of described triple channel driving chip U1 connects one end of described current-limiting resistance R3, the other end of described current-limiting resistance R3 is used for connecting earth terminal, the Enable Pin ENR of described triple channel driving chip U1, the output 2 of energy control module U2 is made described in ENG with ENB is connected respectively, 3 and 4, one end of described current-limiting resistance R5 is for connecting power supply, the power input 1 of energy control module U2 is made described in the other end connection of described current-limiting resistance R5, described enable signal for generation of enable signal, and is sent to described triple channel driving chip U1 by the described energy control module U2 that makes, the described enable signal of described triple channel driving chip U1 for making energy control module U2 send described in receiving, and the operating state of different light path is controlled according to described enable signal.
2. circuit as claimed in claim 1, it is characterized in that, described circuit also comprises:
Voltage stabilizing didoe ZD1 ~ ZD2, filter capacitor C4 ~ C5, wherein:
The negative pole of described voltage stabilizing didoe ZD1 connects the other end of described current-limiting resistance R4, the positive pole of described voltage stabilizing didoe ZD1 connects the ground end GND of described triple channel driving chip U1, described filter capacitor C4 is connected in parallel described voltage stabilizing didoe ZD1, the negative pole of described voltage stabilizing didoe ZD2 connects the other end of described current-limiting resistance R5, the positive pole of described voltage stabilizing didoe ZD2 is used for connecting earth terminal, and described filter capacitor C5 is connected in parallel described voltage stabilizing didoe ZD2.
3. circuit as claimed in claim 1, it is characterized in that, described blue light path L1 comprises blue-ray LED diode D1 ~ D3, wherein:
The positive pole of described blue-ray LED diode D1 is for connecting power supply, the negative pole of described blue-ray LED diode D1 connects the positive pole of described blue-ray LED diode D2, the negative pole of described blue-ray LED diode D2 connects the positive pole of described blue-ray LED diode D3, and the negative pole of described blue-ray LED diode D3 connects one end of described filter capacitor C1.
4. circuit as claimed in claim 1, it is characterized in that, described ruddiness path L2 comprises red-light LED diode D4 ~ D6, wherein:
The positive pole of described red-light LED diode D4 is for connecting power supply, the negative pole of described red-light LED diode D4 connects the positive pole of described red-light LED diode D5, the negative pole of described red-light LED diode D5 connects the positive pole of described red-light LED diode D6, and the negative pole of described red-light LED diode D6 connects one end of described filter capacitor C2.
5. circuit as claimed in claim 1, it is characterized in that, described green glow path L3 comprises green light LED diode D7 ~ D9, wherein:
The positive pole of described green light LED diode D7 is for connecting power supply, the negative pole of described green light LED diode D7 connects the positive pole of described green light LED diode D8, the negative pole of described green light LED diode D8 connects the positive pole of described green light LED diode D9, and the negative pole of described green light LED diode D9 connects one end of described filter capacitor C3.
6. circuit as claimed in claim 1, is characterized in that, described in energy control module U2 is comprised:
Current-limiting resistance R6 ~ R9, enable control chip U3, process chip U4, crystal oscillator pipe Y1, wherein:
One end of described current-limiting resistance R6 connects the other end of described current-limiting resistance R5, the current output terminal ROUT of described enable control chip U3 connects the other end of described current-limiting resistance R6 and the Enable Pin ENR of described triple channel driving chip U1 respectively, one end of described current-limiting resistance R7 connects one end of described current-limiting resistance R6, the current output terminal GOUT of described enable control chip U3 connects the other end of described current-limiting resistance R7 and the Enable Pin ENG of described triple channel driving chip U1 respectively, one end of described current-limiting resistance R8 connects one end of described current-limiting resistance R6, the current output terminal BOUT of described enable control chip U3 connects the other end of described current-limiting resistance R8 and the Enable Pin ENB of described triple channel driving chip U1 respectively, the current polarity selecting side POL of described enable control chip U3, ground end GND, plug-in resistance terminal RREX, plug-in resistance terminal GREX and plug-in resistance terminal BREX is used for connecting earth terminal, the power end VCC of described enable control chip U3 connects one end of described current-limiting resistance R6, serial data input DAI and the clock signal input terminal CKI of described enable control chip U3 are connected serial data output terminal SDO and the clock signal output terminal CKO of described process chip U4 respectively, the power end VCC of described process chip U4 connects one end of described current-limiting resistance R6, the ground end GND of described process chip U4 is used for connecting earth terminal, external crystal oscillator end XO and the XI of described process chip U4 connects one end of described crystal oscillator pipe Y1 respectively, the reset terminal RST of described process chip U4 connects one end of described current-limiting resistance R9, the other end of described current-limiting resistance R9 connects one end of described current-limiting resistance R6, described process chip U4 is used for producing data-signal and clock signal according to the program of write, and described data-signal and clock signal is sent to described enable control chip U3, described enable control chip U3 is for receiving described data-signal and the clock signal of described process chip U4 transmission, and produce described enable signal according to described data-signal and clock signal, and described enable signal is sent to described triple channel driving chip U1.
7. the circuit as described in any one of claim 1-6, is characterized in that, the model of described triple channel driving chip U1 is DD313.
8. the circuit as described in any one of claim 1-6, is characterized in that, the model of described enable control chip U3 is DM413.
9. the circuit as described in any one of claim 1-6, is characterized in that, the model of described process chip U4 is 8051.
10. the circuit as described in any one of claim 1-6, is characterized in that, described power supply is the alternating current of 12-18V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310641927.9A CN104684182A (en) | 2013-12-03 | 2013-12-03 | Three-channel high-power LED (Light Emitting Diode) drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310641927.9A CN104684182A (en) | 2013-12-03 | 2013-12-03 | Three-channel high-power LED (Light Emitting Diode) drive circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104684182A true CN104684182A (en) | 2015-06-03 |
Family
ID=53318599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310641927.9A Pending CN104684182A (en) | 2013-12-03 | 2013-12-03 | Three-channel high-power LED (Light Emitting Diode) drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104684182A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106954309A (en) * | 2017-04-20 | 2017-07-14 | 南京邮电大学 | A kind of wireless power LED illumination System Color control circuit and method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201374852Y (en) * | 2009-03-20 | 2009-12-30 | 电子科技大学 | Light-emitting diode light source constant current driving module |
| CN202018810U (en) * | 2011-04-29 | 2011-10-26 | 深圳市达特工程技术有限公司 | LED display device |
| CN202150980U (en) * | 2011-08-09 | 2012-02-22 | 杭州盘古自动化系统有限公司 | LED color driving network controller |
| CN202524596U (en) * | 2012-01-11 | 2012-11-07 | 上海亿旺光电科技发展有限公司 | LED three-channel point light source driving circuit |
| CN203038639U (en) * | 2012-12-18 | 2013-07-03 | 深圳市大族元亨光电股份有限公司 | Led pixel lamp circuit |
-
2013
- 2013-12-03 CN CN201310641927.9A patent/CN104684182A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201374852Y (en) * | 2009-03-20 | 2009-12-30 | 电子科技大学 | Light-emitting diode light source constant current driving module |
| CN202018810U (en) * | 2011-04-29 | 2011-10-26 | 深圳市达特工程技术有限公司 | LED display device |
| CN202150980U (en) * | 2011-08-09 | 2012-02-22 | 杭州盘古自动化系统有限公司 | LED color driving network controller |
| CN202524596U (en) * | 2012-01-11 | 2012-11-07 | 上海亿旺光电科技发展有限公司 | LED three-channel point light source driving circuit |
| CN203038639U (en) * | 2012-12-18 | 2013-07-03 | 深圳市大族元亨光电股份有限公司 | Led pixel lamp circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106954309A (en) * | 2017-04-20 | 2017-07-14 | 南京邮电大学 | A kind of wireless power LED illumination System Color control circuit and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103687228B (en) | A kind of landscape decorative lamp system and geocoding thereof and display control method | |
| US20140333859A1 (en) | Backlight Driving Board and LCD Device | |
| CN105101521A (en) | Light emitting diode circuit and driving method thereof | |
| CN203378124U (en) | Projector LED light source drive module with single step-down converter | |
| CN203416462U (en) | Internet of Things intelligent full-color LED lamp | |
| CN102325401B (en) | LED driving device, lamp strip and backlight device | |
| CN104684182A (en) | Three-channel high-power LED (Light Emitting Diode) drive circuit | |
| CN110798950A (en) | Bulb lamp circuit capable of being connected in series and bulb lamp string | |
| CN104376816A (en) | LED backlight drive circuit, LED backlight device and display device | |
| CN203734893U (en) | Intelligent LED lamp controller based on Z-wave network and control system of intelligent LED lamp controller | |
| CN202524615U (en) | Drive device of light emitting diode | |
| CN106028508B (en) | A kind of flashlight | |
| CN109618462B (en) | Lighting control device and system based on wired communication | |
| CN204145854U (en) | What integral control circuit controlled directly drives LED illumination System | |
| CN103874289A (en) | External LED (light-emitting diode) light-emitting device based on mobile phone audio signal control | |
| CN202769506U (en) | Intelligent and multi-functional light-emitting diode (LED) string lights | |
| CN103177697A (en) | Backlight driving circuit, backlight driving method and liquid crystal display | |
| CN203801115U (en) | Singlechip microcomputer and NCP5623 chip based three-primary color LED backlight source | |
| CN208509326U (en) | A kind of Double-way light regulating circuit | |
| CN103415118B (en) | Backlight drive circuit, electronic installation and backlight driving method | |
| CN203243561U (en) | Light emitting diode assembly packaging improved structure having driving chip | |
| CN207399586U (en) | A kind of light modulator for signal light control | |
| US20140333227A1 (en) | Light Source Module, Light Source Module Driving Circuit and Driving Method | |
| CN204157142U (en) | What integral control circuit controlled directly drives LED illumination System | |
| CN204377223U (en) | A kind of LED with the RGB/RGBW/RGBY of Data Control |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150603 |