CN201995188U - LED (light-emitting diode) film and television lamp with adjustable color temperature and brightness - Google Patents
LED (light-emitting diode) film and television lamp with adjustable color temperature and brightness Download PDFInfo
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- CN201995188U CN201995188U CN2011200966220U CN201120096622U CN201995188U CN 201995188 U CN201995188 U CN 201995188U CN 2011200966220 U CN2011200966220 U CN 2011200966220U CN 201120096622 U CN201120096622 U CN 201120096622U CN 201995188 U CN201995188 U CN 201995188U
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Abstract
The utility model discloses an LED (light-emitting diode) film and television lamp with adjustable color temperature and brightness, which comprises a power supply circuit and an LED working circuit. The LED film and television lamp is characterized by further comprising a control circuit; the control circuit comprises a singlechip, a first potentiometer capable of adjusting a color temperature, and a second potentiometer capable of adjusting brightness; the singlechip is provided with a power supply input end, a first adjusting signal input end, a second adjusting signal input end, a first light dimming output end and a second light dimming output end; the LED working circuit is provided with a first input end and a second input end; an output end of the power supply circuit is connected with the power supply input end of the singlechip; an output end of the first potentiometer is connected with the first adjusting signal input end of the singlechip; an output end of the second potentiometer is connected with the second adjusting signal input end of the singlechip; the first light dimming output end is connected with the first input end of the LED working circuit; and the second light dimming output end is connected with the second input end of the LED working circuit. By using the LED film and television lamp with the adjustable color temperature and brightness, the brightness and the color temperature of the LED lamp can be adjusted manually through the potentiometers; when the color temperature of an LED is constant, the color temperature cannot be changed while the brightness is adjusted; and similarly, when the brightness is constant, the brightness of the LED lamp cannot be changed while the color temperature is changed. Therefore, the color temperature and the brightness of the LED lamp can be freely adjusted in a certain range and controlled mutually independently, and the flexibility and the diversity for the use of the LED lamp are improved.
Description
Technical field
The utility model relates to a kind of LED video display lamp, the LED video display lamp of particularly a kind of colour temperature and adjustable brightness joint.
Background technology
In order to save the energy, new lighting source is constantly developed.Led light source has energy-saving and environmental protection as a kind of new light sources, plurality of advantages such as long service life, low energy consumption, and therefore, in the daily life, increasing place begins to replace traditional incandescent lamp and fluorescent lamp with led light source.
But usually LED etc. mostly is monochromatic illumination, can't regulate brightness and colour temperature, also is the adjusting that can only realize a kind of brightness and colour temperature even if regulate, and uses more singlely, can't reach the demand of answering the user and the purpose of regulating.In order to realize adjusting to the fluorescent tube illuminating effect, as the patent No. is the LED illuminating lamp that a kind of brightness can be regulated the Chinese utility model " a kind of multi-colored led illuminating lamp " of ZL200720031770.8 disclosed, this LED lamp comprises illuminating lamp tube, be provided with the luminous tube unit that three kinds of primary-color LEDs of red, green, blue constitute in the illuminating lamp tube, LED luminous tube unit is provided with many groups, three kinds of primary-color LED luminous tubes of red, green, blue are connected with led drive circuit respectively, and led drive circuit is connected with control circuit.Control circuit comprises that the single-chip microcomputer led drive circuit is for controlling the constant current LED drive circuit of three kinds of primary-color LED luminous tubes of red, green, blue respectively.Though this patent is red by adopting in the Digital Circuit Control luminescence unit, green, the luminous intensity of blue three primary colors, thereby obtain comprising that the light source of white light and multiple color is used for illumination and other purposes, but, the LED illumination adjustments of this patent needs prior mode with color or color dynamic change to leave in the control circuit, control circuit is controlled led drive circuit again, thereby control the luminous intensity of LED of all kinds, to reach the purpose of conversion color, therefore can not carry out artificial control, the user can't select and its illumination of conversion and color freely according to the hobby of oneself.
Summary of the invention
Technical problem to be solved in the utility model be provide at above-mentioned prior art present situation a kind of easy to operate and can be free the LED video display lamp of conversion illumination colour temperature and brightness.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: the LED video display lamp of a kind of colour temperature and adjustable brightness joint includes
Power circuit is converted to DC power supply with AC power, and the output output constant DC of this power circuit is pressed;
The LED operating circuit, the work of driving LED lamp;
It is characterized in that: also include a control circuit, this control circuit includes first potentiometer and intensity adjustable second potentiometer of single-chip microcomputer, adjustable color temperature, wherein, described single-chip microcomputer has power input, the first conditioning signal input, the second conditioning signal input, the first light modulation output and the second light modulation output, and described LED operating circuit has the first input end and second input; The output of described power circuit links to each other with the power input of described single-chip microcomputer, the output of described first potentiometer connects the first conditioning signal input of described single-chip microcomputer, the output of described second potentiometer connects the second conditioning signal input of described single-chip microcomputer, the described first light modulation output connects the first input end of described LED operating circuit, and the described second light modulation output connects second input of described LED operating circuit.
The shortcoming of traditional simulation light modulation is that the light modulation brightness range is smaller, and along with the variation colour temperature of LED brightness can be offset to some extent, in order to obtain better dimming effect, as preferably, described single-chip microcomputer is that model is the single-chip microcomputer of S3F9488, and the first light modulation output of this single-chip microcomputer and the second light modulation output be output pwm signal respectively.So the single-chip microcomputer of present embodiment adopts the PWM dimming mode, produce the purpose that pwm signal is realized light modulation by single-chip microcomputer, this light modulation advantage is that colour temperature changes not obvious with brightness.
As preferably, described LED operating circuit includes first drive circuit of control warm colour LED, second drive circuit and the LED panel of control cool colour LED, the first input end that the input of described first drive circuit is described LED operating circuit connects the described first light modulation output, and second input that the input of described second drive circuit is described LED operating circuit connects the described second light modulation output.
As further preferred, described first drive circuit and second drive circuit include the LED constant-flow driver that model is PT4115 respectively, each described LED constant-flow driver all has the DIM pin, the VIN pin, the CSN pin, SW pin and GND pin, wherein, the DIM pin of described LED constant-flow driver links to each other with the light modulation output of described single-chip microcomputer correspondence, the SW pin one tunnel of described LED constant-flow driver links to each other with voltage-stabiliser tube is anodal, another road links to each other through the negative electrode of inductance with described LED lamp, the CSN pin of described LED constant-flow driver is through resistance R ' s connects the direct voltage of described power circuit output, the VIN pin of described LED constant-flow driver directly connects the direct voltage through described power circuit output, the GND pin ground connection of described LED constant-flow driver.
As preferably, described power circuit includes power supply adaptor and filter circuit of pressure-stabilizing, the input input 220V electric main of described power supply adaptor, the output of this power supply adaptor is exported first direct voltage and is linked to each other with the input of described filter circuit of pressure-stabilizing, and the output of this filter circuit of pressure-stabilizing is exported second direct voltage.
As further preferred, it is the pressurizer of 78L05 that described filter circuit of pressure-stabilizing includes diode, first electric capacity, first electrochemical capacitor, second electric capacity, second electrochemical capacitor and model, the positive terminal of described first direct voltage links to each other with the anode of described diode, the negative pole end ground connection of this first direct voltage; The negative electrode first via of described diode and the input of described pressurizer link to each other, and the second the tunnel through first capacity earth, and Third Road links to each other with the positive pole of described first electrochemical capacitor; The direct ground connection of the earth terminal of described pressurizer, the output first via of this pressurizer are through second capacity earth, and the second the tunnel connects second direct voltage, and Third Road connects the positive pole of described second electrochemical capacitor, the minus earth of this second electrochemical capacitor.
For the ease of the brightness and the colour temperature adjustment state of checking the LED lamp, as preferably, described single-chip microcomputer also includes the demonstration output, is connected with the LCD display that can show the gentle brightness of described LED lamp current color on this demonstration output.
Compared with prior art, advantage of the present utility model is: be connected single-chip microcomputer by two potentiometers that can control colour temperature and brightness respectively, and realize the colour temperature of LED lamp and the adjusting of brightness respectively by single-chip microcomputer, present embodiment can be by the brightness and the colour temperature of potentiometer manual adjustments LED lamp, after the LED color temperature constant, regulate brightness and can not change colour temperature, in like manner, behind brightness constancy, regulate the brightness that colour temperature also can not change the LED lamp, this makes the colour temperature of LED lamp and brightness can regulate freely and separate control in certain scope, flexibility and diversity that the LED lamp uses have been improved, and can realize manual adjustment and control by the personal like, more convenient to operate.
Description of drawings
Fig. 1 is the schematic block circuit diagram of the utility model embodiment.
Fig. 2 is the filter circuit of pressure-stabilizing structural representation of the utility model embodiment.
Fig. 3 is the single chip machine controlling circuit structural representation of the utility model embodiment.
Fig. 4 is the led drive circuit structural representation of utility model embodiment.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As Fig. 1～shown in Figure 4, the LED video display lamp of present embodiment includes
Power circuit 1, being used for that AC-input voltage is converted to constant DC presses, this power circuit 1 includes power supply adaptor 11 and filter circuit of pressure-stabilizing 12, the input input 220V electric main of power supply adaptor, the output 111 of power supply adaptor 11 is exported 12V first direct voltages and is connected to the input of filter circuit of pressure-stabilizing, 121 output of the output of filter circuit of pressure-stabilizing 12 5V, second direct voltage; Wherein, it is the pressurizer U1 of 78L05 that filter circuit of pressure-stabilizing 12 includes diode D, first capacitor C 11, the first electrochemical capacitor C21, second capacitor C 12, the second electrochemical capacitor C22 and model, the positive terminal of 12V first direct voltage links to each other with the anode of diode D, the negative pole end ground connection of this 12V first direct voltage; The negative electrode first via of diode D links to each other with the input a of pressurizer U1, and the second the tunnel through first capacitor C, 11 ground connection, and Third Road links to each other with the positive pole of the first electrochemical capacitor C21; The direct ground connection of earth terminal c of pressurizer U1, the output b first via of this pressurizer U1 are through second capacitor C, 12 ground connection, and the second the tunnel receives on 5V second direct voltage, and Third Road connects the positive pole of the second electrochemical capacitor C22, the minus earth of this second electrochemical capacitor C22.
Wherein, first drive circuit 31 and second drive circuit 32 are respectively that the LED constant-flow driver U2 of PT4115 is a core with the model, each LED constant-flow driver U2 all has the DIM pin, the VIN pin, the CSN pin, SW pin and GND pin, wherein, the DIM pin of LED constant-flow driver U2 links to each other with the light modulation output of single-chip microcomputer 23 correspondences, the SW pin one tunnel of LED constant-flow driver U2 links to each other with voltage-stabiliser tube is anodal, another road links to each other with LED lamp cathode on the LED panel through inductance, the CSN pin of LED constant-flow driver U2 is through resistance R ' s connects the 12V direct voltage by power circuit output, the VIN pin of LED constant-flow driver U2 directly connects the 12V direct voltage by power circuit output, the GND pin ground connection of LED constant-flow driver U2.
Usually, can be divided into the adjusting of brightness (light intensity) and colour temperature to the adjusting of white LED lamp.Tradition LED lamp dimming mode adopts analog light-adjusting circuit more, and the shortcoming of this analog light-adjusting circuit is that the light modulation brightness range is smaller, and along with the variation colour temperature of LED brightness can be offset to some extent; What present embodiment adopted is by the change of PWM regulative mode realization to lamp brightness of LED face onboard led and colour temperature, if just change brightness, then equal proportion ground changes the duty ratio of pwm signal in the led drive circuit; Change colour temperature if desired,, thereby realize the adjusting of three kinds of colour component ratios in the white light and regulate colour temperature then by using different duty to control to the white LED lamp of two kinds of colour temperatures.
The LED panel of present embodiment is that the LED lamp of 3200K (warm tones) and LED lamp bank that tone is 5600K (cool tone) row combine by tone, input to single-chip microcomputer 23 by the voltage ratio of regulating first potentiometer and second potentiometer, can give led drive circuit by output pwm signal at the first light modulation output 21 and the second light modulation output 22 through single-chip microcomputer 23, finally can realize the colour temperature of the LED panel of 3200K and two kinds of shade combinations of 5600K and the adjusting of brightness, thereby the colour temperature that has realized the LED panel is from 3200K to 5600K and the regulated at will of different brightness, it is that colour temperature is not obvious with the brightness variation that present embodiment adopts the advantage of PWM dimming mode, can be according to more convenient required brightness and the colour temperature of control LED lamp of user's hobby.
Because the PWM regulative mode is realized the colour temperature of LED lamp and the variation of brightness and is belonged to prior art, repeats no more the operation principle of PWM in the present embodiment.
Claims (7)
1. the LED video display lamp of colour temperature and adjustable brightness joint includes
Power circuit is converted to DC power supply with AC power, and the output output constant DC of this power circuit is pressed;
The LED operating circuit, the work of driving LED lamp;
It is characterized in that: also include a control circuit, this control circuit includes first potentiometer and intensity adjustable second potentiometer of single-chip microcomputer, adjustable color temperature, wherein, described single-chip microcomputer has power input, the first conditioning signal input, the second conditioning signal input, the first light modulation output and the second light modulation output, and described LED operating circuit has the first input end and second input; The output of described power circuit links to each other with the power input of described single-chip microcomputer, the output of described first potentiometer connects the first conditioning signal input of described single-chip microcomputer, the output of described second potentiometer connects the second conditioning signal input of described single-chip microcomputer, the described first light modulation output connects the first input end of described LED operating circuit, and the described second light modulation output connects second input of described LED operating circuit.
2. the LED video display lamp of colour temperature according to claim 1 and adjustable brightness joint, it is characterized in that: described single-chip microcomputer is that model is that model is the 8-bit microcontroller of Samsung S3F9488XZZ, and the first light modulation output of this single-chip microcomputer and the second light modulation output be output pwm signal respectively.
3. the LED video display lamp of colour temperature according to claim 1 and adjustable brightness joint, it is characterized in that: described LED operating circuit includes first drive circuit of control warm colour LED, second drive circuit and the LED panel of control cool colour LED, the first input end that the input of described first drive circuit is described LED operating circuit connects the described first light modulation output, and second input that the input of described second drive circuit is described LED operating circuit connects the described second light modulation output.
4. the LED video display lamp of colour temperature according to claim 3 and adjustable brightness joint, it is characterized in that: described first drive circuit and second drive circuit include the LED constant-flow driver that model is PT4115 respectively, each described LED constant-flow driver all has the DIM pin, the VIN pin, the CSN pin, SW pin and GND pin, wherein, the DIM pin of described LED constant-flow driver links to each other with the light modulation output of described single-chip microcomputer correspondence, the SW pin one tunnel of described LED constant-flow driver links to each other with voltage-stabiliser tube is anodal, another road links to each other through the negative electrode of inductance with described LED lamp, the CSN pin of described LED constant-flow driver is through resistance R ' s connects the direct voltage of described power circuit output, the VIN pin of described LED constant-flow driver directly connects the direct voltage through described power circuit output, the GND pin ground connection of described LED constant-flow driver.
According in the claim 1～4 described colour temperature of arbitrary claim and adjustable brightness the joint LED video display lamp, it is characterized in that: described power circuit includes power supply adaptor and filter circuit of pressure-stabilizing, the input input 220V electric main of described power supply adaptor, the output of this power supply adaptor is exported first direct voltage and is linked to each other with the input of described filter circuit of pressure-stabilizing, and the output of this filter circuit of pressure-stabilizing is exported second direct voltage.
6. the LED video display lamp of colour temperature according to claim 5 and adjustable brightness joint, it is characterized in that: it is the pressurizer of 78L05 that described filter circuit of pressure-stabilizing includes diode, first electric capacity, first electrochemical capacitor, second electric capacity, second electrochemical capacitor and model, the positive terminal of described first direct voltage links to each other with the anode of described diode, the negative pole end ground connection of this first direct voltage; The negative electrode first via of described diode and the input of described pressurizer link to each other, and the second the tunnel through first capacity earth, and Third Road links to each other with the positive pole of described first electrochemical capacitor; The direct ground connection of the earth terminal of described pressurizer, the output first via of this pressurizer are through second capacity earth, and the second the tunnel connects second direct voltage, and Third Road connects the positive pole of described second electrochemical capacitor, the minus earth of this second electrochemical capacitor.
7. the LED video display lamp of colour temperature according to claim 1 and adjustable brightness joint, it is characterized in that: described single-chip microcomputer also includes the demonstration output, is connected with the LCD display that can show the gentle brightness of described LED lamp current color on this demonstration output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200966220U CN201995188U (en) | 2011-03-29 | 2011-03-29 | LED (light-emitting diode) film and television lamp with adjustable color temperature and brightness |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200966220U CN201995188U (en) | 2011-03-29 | 2011-03-29 | LED (light-emitting diode) film and television lamp with adjustable color temperature and brightness |
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| CN201995188U true CN201995188U (en) | 2011-09-28 |
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| CN2011200966220U Expired - Fee Related CN201995188U (en) | 2011-03-29 | 2011-03-29 | LED (light-emitting diode) film and television lamp with adjustable color temperature and brightness |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152941A (en) * | 2013-02-27 | 2013-06-12 | 深圳市华高芯源科技有限公司 | LED (Light Emitting Diode) lamp capable of adjusting color temperature |
| CN103298216A (en) * | 2013-06-20 | 2013-09-11 | 余姚利帅影视器材有限公司 | Light-emitting diode (LED) film and television lamp circuit and structure with detachable lamp panel |
| CN104125683A (en) * | 2013-04-29 | 2014-10-29 | 聚积科技股份有限公司 | Light emitting device capable of adjusting color temperature |
| CN104349534A (en) * | 2013-08-01 | 2015-02-11 | 弘凯光电(深圳)有限公司 | Light emitting diode driving apparatus capable of adjusting color temperature and brightness |
| CN105357815A (en) * | 2015-09-16 | 2016-02-24 | 彭洲龙 | LED (light emitting diode) table lamp |
| CN108601147A (en) * | 2018-05-15 | 2018-09-28 | 苏州瑞腾照明科技股份有限公司 | The adjusting method of light source color temperature in a kind of dimming lamp |
| CN110290618A (en) * | 2019-07-19 | 2019-09-27 | 无锡奥利杰科技有限公司 | A kind of circuit of MCU control colour temperature switching Linear Driving LED illumination |
| WO2019183706A1 (en) * | 2018-03-26 | 2019-10-03 | Adam Chaimberg | Dimmable led light fixture maintaining brightness during color temperature change |
| CN110475403A (en) * | 2019-07-22 | 2019-11-19 | 鹰潭阳光照明有限公司 | A kind of the colour temperature setting method and its circuit of intelligence light-adjustable LED lamp |
| CN111343745A (en) * | 2020-04-07 | 2020-06-26 | 巨尔(上海)光电照明有限公司 | Control device and control method of LED light source |
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2011
- 2011-03-29 CN CN2011200966220U patent/CN201995188U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103152941A (en) * | 2013-02-27 | 2013-06-12 | 深圳市华高芯源科技有限公司 | LED (Light Emitting Diode) lamp capable of adjusting color temperature |
| CN104125683A (en) * | 2013-04-29 | 2014-10-29 | 聚积科技股份有限公司 | Light emitting device capable of adjusting color temperature |
| CN103298216A (en) * | 2013-06-20 | 2013-09-11 | 余姚利帅影视器材有限公司 | Light-emitting diode (LED) film and television lamp circuit and structure with detachable lamp panel |
| CN104349534A (en) * | 2013-08-01 | 2015-02-11 | 弘凯光电(深圳)有限公司 | Light emitting diode driving apparatus capable of adjusting color temperature and brightness |
| CN104349534B (en) * | 2013-08-01 | 2016-09-14 | 弘凯光电(深圳)有限公司 | Adjustable color temperature and the light emitting diode drive device of brightness |
| CN105357815A (en) * | 2015-09-16 | 2016-02-24 | 彭洲龙 | LED (light emitting diode) table lamp |
| WO2019183706A1 (en) * | 2018-03-26 | 2019-10-03 | Adam Chaimberg | Dimmable led light fixture maintaining brightness during color temperature change |
| US11206720B2 (en) | 2018-03-26 | 2021-12-21 | Globe Electric Company Inc. | Dimmable LED light fixture maintaining brightness during color temperature change |
| CN108601147A (en) * | 2018-05-15 | 2018-09-28 | 苏州瑞腾照明科技股份有限公司 | The adjusting method of light source color temperature in a kind of dimming lamp |
| CN110290618A (en) * | 2019-07-19 | 2019-09-27 | 无锡奥利杰科技有限公司 | A kind of circuit of MCU control colour temperature switching Linear Driving LED illumination |
| CN110290618B (en) * | 2019-07-19 | 2022-11-01 | 无锡奥利杰科技有限公司 | Circuit for MCU to control color temperature switching linear driving LED illumination |
| CN110475403A (en) * | 2019-07-22 | 2019-11-19 | 鹰潭阳光照明有限公司 | A kind of the colour temperature setting method and its circuit of intelligence light-adjustable LED lamp |
| CN111343745A (en) * | 2020-04-07 | 2020-06-26 | 巨尔(上海)光电照明有限公司 | Control device and control method of LED light source |
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Granted publication date: 20110928 Termination date: 20170329 |