CN223231354U - Touch-control type dimming and toning circuit and dimming lighting lamp - Google Patents
Touch-control type dimming and toning circuit and dimming lighting lampInfo
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- CN223231354U CN223231354U CN202422334344.8U CN202422334344U CN223231354U CN 223231354 U CN223231354 U CN 223231354U CN 202422334344 U CN202422334344 U CN 202422334344U CN 223231354 U CN223231354 U CN 223231354U
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Abstract
The disclosure provides a touch-control type dimming and toning circuit, which comprises a touch control circuit, a main lighting driving circuit, an atmosphere lamp driving circuit and a power taking circuit. The touch control circuit comprises a main control chip, a dimming touch control component and a switch component, wherein the dimming touch control component comprises three touch areas and a dimming touch strip and is used for receiving user touch control signals, and the switch component is used for controlling the switching of the main lighting lamp and the atmosphere lamp. The main control chip respectively controls the color temperature combination proportion of the main lighting lamp, the mixed light color proportion of the atmosphere lamp and the brightness of the main lighting lamp and the atmosphere lamp by outputting PWM signals with different duty ratios according to the received touch control signals. The touch-control type dimming and toning circuit is further provided with a dimming depth indicator lamp, a main illumination state indicator lamp and an atmosphere lamp state indicator lamp, so that a user can intuitively know the working state and the dimming depth of the lamp, and the user experience is improved and misoperation is reduced.
Description
Technical Field
The disclosure relates to the technical field of lighting fixtures, and in particular relates to a touch-control dimming and toning circuit and a dimming lighting fixture.
Background
Along with the rapid development of the LED lighting technology, the LED lamp has been widely applied to the fields of household, commercial and industrial lighting due to the remarkable advantages of high efficiency, energy saving, environmental protection and the like. In the aspect of intelligent control of the LED lamp, the touch dimming technology is favored by the market due to the convenience of operation. However, the existing LED touch dimming lamps generally have the problem of single function, and can only realize basic touch dimming functions, and lack feedback indication for user operation, resulting in poor user experience. Meanwhile, as the functions of the lamp are relatively single, the lamp is easy to lack of light color adjustment application, and the diversified requirements of a user on the light in a specific scene are difficult to meet.
For example, reference CN201510515094.0 discloses a touch LED dimming circuit, which first selects a dimming mode by configuring the high and low levels of the CS1, CS2, and CS3 pins of the capacitive touch chip after the system is powered on. When a finger touches the touch panel, a tiny capacitance change is formed between the touch sensing electrode and the finger, and after the change is detected by the capacitive touch chip U1, if the touch time is less than 550ms, the touch event is considered, and the PWM signal output end OUT outputs a high level or a low level to control the switching of the LED load. If the touch time is longer than 550ms, the long-press event is considered, the PWM signal output end OUT outputs a square wave signal, and continuous adjustment of the brightness of the LED is realized by changing the duty ratio of the square wave. In the stepless dimming mode with brightness memory, after brightness is adjusted by long-press touch, brightness value at loosening time is memorized, and the brightness is taken as initial brightness at the next click touch. But this scheme function is single, lacks the feedback instruction to user operation, and lacks the application of photochromic regulation, is difficult to satisfy the diversified demand of user to light under specific scene.
Disclosure of utility model
The disclosure aims to overcome the defects in the prior art and provide a touch-control dimming and toning circuit with feedback indication and a dimming lighting lamp.
The aim of the disclosure is achieved by the following technical scheme:
The utility model provides a touch-control formula mixing of colors circuit that adjusts luminance, includes touch control circuit, main lighting drive circuit, atmosphere lamp drive circuit and gets the circuit, it is used for providing the electric energy for touch control circuit to get the circuit.
The main lighting driving circuit is used for driving the cold light source and the warm light source to emit light rays with different color temperatures.
The atmosphere lamp driving circuit is used for driving the red, green and blue light sources to emit light rays of mixed light colors.
The touch control circuit comprises a main control chip, a dimming touch component and a switch component, wherein the dimming touch component comprises a first touch area, a second touch area, a third touch area and a dimming touch strip, the first touch area, the second touch area and the third touch area are arranged at intervals on the dimming touch strip, and the first touch area, the second touch area and the third touch area are respectively connected with a first sliding signal end, a second sliding signal end and a third sliding signal end of the main control chip.
The switch assembly comprises a main lighting lamp touch switch and an atmosphere lamp touch switch, and the main lighting lamp touch switch and the atmosphere lamp touch switch are respectively connected with a main lighting switch signal end and an atmosphere lamp switch signal end of the main control chip.
The master control chip is characterized in that the cold light PWM output end and the warm light PWM output end of the master control chip are respectively connected with the cold light PWM signal receiving end and the warm light PWM signal receiving end of the main illumination driving circuit, and the red light PWM output end, the green light PWM output end and the blue light PWM output end of the master control chip are respectively connected with the red light PWM signal receiving end, the green light PWM signal receiving end and the blue light PWM signal receiving end of the atmosphere lamp driving circuit.
In one embodiment, the dimming touch assembly further comprises a dimming depth indicator lamp, the dimming depth indicator lamp is arranged on the dimming touch strip, and the dimming depth indicator lamp is connected with an indicator lamp signal end of the main control chip.
In one embodiment, the number of the dimming depth indicator lamps is multiple, the dimming depth indicator lamps are arranged on the dimming touch strip at intervals, and each dimming depth indicator lamp is connected with an indicator lamp signal end of the main control chip respectively.
In one embodiment, the switch assembly further comprises a main illumination state indicator and an atmosphere lamp state indicator, the main illumination state indicator is adjacent to the main illumination lamp touch switch, the atmosphere lamp state indicator is adjacent to the atmosphere lamp touch switch, the main illumination state indicator is connected with a main illumination state signal end of the main control chip, and the atmosphere lamp state indicator is connected with an atmosphere lamp state signal end of the main control chip.
In one embodiment, the main lighting driving circuit includes a first main lighting control circuit and a second main lighting control circuit, the first main lighting control circuit includes a luminescence dimming chip and a first resistor, a luminescence PWM output end of the main control chip is connected with a luminescence PWM signal receiving end of the luminescence dimming chip through the first resistor, the second main lighting control circuit includes a warm light dimming chip and a second resistor, and a warm light PWM output end of the main control chip is connected with a warm light PWM signal receiving end of the warm light dimming chip through the second resistor.
In one embodiment, the atmosphere lamp driving circuit comprises a first atmosphere lamp control circuit, a second atmosphere lamp control circuit and a third atmosphere lamp control circuit, wherein the red light PWM output end of the main control chip is connected with the red light PWM signal receiving end of the first atmosphere lamp control circuit, the green light PWM output end of the main control chip is connected with the green light PWM signal receiving end of the second atmosphere lamp control circuit, and the blue light PWM output end of the main control chip is connected with the blue light PWM signal receiving end of the third atmosphere lamp control circuit.
In one embodiment, the first atmosphere lamp control circuit comprises a third resistor and a first electronic switch tube, the red light PWM output end of the main control chip is connected with the control end of the first electronic switch tube through the third resistor, the first end of the first electronic switch tube is used for being connected with the red light LED lamp, and the second end of the first electronic switch tube is grounded.
In one embodiment, the second atmosphere lamp control circuit comprises a fourth resistor and a second electronic switch tube, the green light PWM output end of the main control chip is connected with the control end of the second electronic switch tube through the fourth resistor, the first end of the second electronic switch tube is used for being connected with the green light LED lamp, and the second end of the second electronic switch tube is grounded.
In one embodiment, the third atmosphere lamp control circuit includes a fifth resistor and a third electronic switching tube, the blue light PWM output end of the main control chip is connected with the control end of the third electronic switching tube through the fifth resistor, the first end of the third electronic switching tube is used for being connected with the blue light LED lamp, and the second end of the third electronic switching tube is grounded.
In one embodiment, the power taking circuit comprises a linear voltage stabilizer, wherein an input end of the linear voltage stabilizer is used for being connected with an external power supply, and an output end of the linear voltage stabilizer is connected with a power supply input end of the touch control circuit.
A dimming lighting fixture comprising a touch-controlled dimming and toning circuit as defined in any one of the above.
Compared with the prior art, the method has at least the following advantages:
1. According to the touch type dimming and color mixing circuit, after a user lightly touches the main lighting lamp touch switch and the atmosphere lamp touch switch, the main control chip recognizes touch signals and outputs level signals through the main lighting switch signal end and the atmosphere lamp switch signal end to respectively control the on-off states of the main lighting lamp and the atmosphere lamp, and further, when the duration of the user touching the main lighting lamp touch switch and the atmosphere lamp touch switch is longer than two seconds, the main control chip outputs PWM signals with different duty ratios through the PWM signal output end to respectively change the color temperature combination proportion of the main lighting lamp and the mixed light color of the atmosphere lamp, so that the main lighting lamp outputs light rays with different color temperatures, and the atmosphere lamp outputs mixed light colors with different colors. In addition, when a user touches the dimming touch bar and slides among three touch areas, the main control chip recognizes continuous touch signals of the dimming touch bar and controls the PWM output end to output corresponding duty ratio PWM signals so as to change the brightness of the main lighting lamp and the atmosphere lamp.
2. The touch-control formula mixing of colors circuit that adjusts luminance still includes main illumination state pilot lamp, atmosphere lamp state pilot lamp and a plurality of degree of depth pilot lamp that adjusts luminance, is favorable to the user to know the operating condition of main illumination lamp and atmosphere lamp directly perceivedly through main illumination state pilot lamp and atmosphere lamp state pilot lamp, can know the degree of depth of adjusting luminance of main illumination lamp and atmosphere lamp through the degree of depth pilot lamp that adjusts luminance simultaneously to user experience has been strengthened and the inconvenience that the maloperation brought has been avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present disclosure and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.
Fig. 1 is a schematic structural diagram of a touch-control dimming and toning circuit according to an embodiment;
FIG. 2 is a circuit diagram of the touch control circuit shown in FIG. 1;
FIG. 3 is a circuit diagram of the main illumination driving circuit shown in FIG. 1;
FIG. 4 is a circuit diagram of the ambient light driving circuit shown in FIG. 1;
FIG. 5 is a circuit diagram of the power extraction circuit shown in FIG. 1;
fig. 6 is a schematic diagram of a touch area of a dimming touch bar formed into a long bar shape when the PCB is laid out.
Detailed Description
In order that the disclosure may be understood, a more complete description of the disclosure will be rendered by reference to the appended drawings. Preferred embodiments of the present disclosure are shown in the drawings. This disclosure may, however, be embodied in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terminology used in the description of the disclosure herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
In order to better understand the technical scheme and beneficial effects of the present disclosure, the following further details are described in conjunction with specific embodiments:
As shown in fig. 1 to 5, a touch-control dimming and toning circuit 10 according to an embodiment of the present disclosure includes a touch control circuit 100, a main lighting driving circuit 200, an atmosphere lamp driving circuit 300, and a power-taking circuit 400, where the power-taking circuit 400 is used for providing power to the touch control circuit 100.
The main lighting driving circuit 200 is used for driving the cold light source and the warm light source to emit light rays with different color temperatures.
The atmosphere lamp driving circuit 300 is used for driving the red, green and blue light sources to emit light of mixed light color.
The touch control circuit 100 includes a main control chip U1, a dimming touch component and a switch component, where the dimming touch component includes a first touch area K1, a second touch area K2, a third touch area K3 and a dimming touch bar, the first touch area K1, the second touch area K2 and the third touch area K3 are set at intervals on the dimming touch bar, and the first touch area K1, the second touch area K2 and the third touch area K3 are respectively connected with a first sliding signal PIN19, a second sliding signal PIN18 and a third sliding signal PIN17 of the main control chip U1.
The switch assembly comprises a main lighting lamp touch switch K5 and an atmosphere lamp touch switch K4, and the main lighting lamp touch switch K5 and the atmosphere lamp touch switch K4 are respectively connected with a main lighting switch signal end PIN6 and an atmosphere lamp switch signal end PIN5 of the main control chip U1.
The cold light PWM output end PWM-C and the warm light PWM output end PWM-W of the main control chip U1 are respectively connected with the cold light PWM signal receiving end PWM-C1 and the warm light PWM signal receiving end PWM-W1 of the main illumination driving circuit 200, and the red light PWM output end PWM-R, the green light PWM output end PWM-G and the blue light PWM output end PWM-B of the main control chip U1 are respectively connected with the red light PWM signal receiving end PWM-R1, the green light PWM signal receiving end PWM-G1 and the blue light PWM signal receiving end PWM-B1 of the atmosphere lamp driving circuit 300.
In this embodiment, when a user briefly touches the main illumination lamp touch switch K5, the main control chip U1 detects a short touch signal, then the main illumination switch signal terminal PIN6 of the main control chip U1 outputs a high level signal, meanwhile, the cold light PWM output terminal PWM-C and the warm light PWM output terminal PWM-W of the main control chip U1 output PWM signals respectively, after the cold light PWM signal receiving terminal PWM-C1 and the warm light PWM signal receiving terminal PWM-W1 of the main illumination driving circuit 200 receive PWM signals, the cold light source and the warm light source respectively output light rays of cold light and warm light color temperature and mix light to output the light rays as the main illumination lamp light rays, when the user touches the main illumination lamp touch switch K5 for a duration of more than two seconds, the main control chip U1 detects a long touch signal, and simultaneously, the cold light PWM output terminal PWM-C and the warm light PWM output terminal PWM-W of the main control chip U1 output PWM signals with different duty ratios to the cold light PWM signal receiving terminal PWM-C1 and the warm light PWM signal receiving terminal PWM-W1 respectively, and the cold light source and the warm light source are controlled by adjusting the duty ratios of the two signals to control the cold light and warm light source to stop the current and the main illumination lamp touch switch K5 for a duration of more than two seconds, thereby realizing continuous color temperature change of the main illumination lamp K2700, and continuous color temperature change when the main illumination lamp touch panel K is touched.
Further, when a user briefly touches the atmosphere lamp touch switch K4, the main control chip U1 detects a short touch signal, then the atmosphere lamp switch signal end PIN5 of the main control chip U1 outputs a high-level signal, meanwhile, the red PWM output end PWM-R, the green PWM output end PWM-G and the blue PWM output end PWM-B of the main control chip U1 respectively output PWM signals to the red PWM signal receiving end PWM-R1, the green PWM signal receiving end PWM-G1 and the blue PWM signal receiving end PWM-B1 of the atmosphere lamp driving circuit 300, so that red light, green light and blue light sources respectively output light rays of red, green and blue colors, and serve as colored atmosphere lamp light to be output after the light rays are mixed, when the duration of the user touches the atmosphere lamp touch switch K4 is longer than two seconds, the main control chip U1 detects a long-time touch signal, and meanwhile, the red PWM output end PWM-R, the green PWM output end PWM-G and the blue PWM output end PWM-B of the main control chip U1 respectively output PWM signals with different duty ratios, the green PWM signal receiving ends PWM-G and the blue PWM signal receiving end PWM-B are different in proportion, and the three-green light signals are different in proportion from the PWM signal receiving end PWM signal receiving ratio, and the blue light is different from the green light source to the atmosphere lamp driving circuit 300.
Specifically, when a user stops touching the atmosphere lamp touch switch K4, the red PWM output end PWM-R, the green PWM output end PWM-G and the blue PWM output end PWM-B of the main control chip U1 output current duty ratio PWM signals, the red PWM signal receiving end PWM-R1, the green PWM signal receiving end PWM-G1 and the blue PWM signal receiving end PWM-B1 of the atmosphere lamp driving circuit 300 receive the current duty ratio PWM signals, so that the atmosphere lamp is stopped at the current light color and keeps outputting light, and if the user touches the atmosphere lamp touch switch K4 again, the main control chip U1 continues to output PWM signals with different duty ratios according to the current light color state, so that the atmosphere lamp continues to circularly output different light colors on the basis of the current light color, and stops at the current light color after the atmosphere lamp touch switch K4 is released again.
Further, the dimming touch bar is a long bar touch area formed by the first touch area K1, the second touch area K2 and the third touch area K3 when the PCB is arranged, and the specific layout is shown in fig. 6. When a user slides on the dimming touch bar through a finger and the main lighting driving circuit 200 and the atmosphere lamp driving circuit 300 are in a working state, the main control chip U1 detects a touch signal through the dimming touch bar, the position of the touch signal is identified through the first touch area K1, the second touch area K2 and the third touch area K3, then the main control chip U1 controls the cold light PWM output end PWM-C, the warm light PWM output end PWM-W, the red light PWM output end PWM-R, the green light PWM output end PWM-G and the blue light PWM output end PWM-B to output PWM signals with corresponding duty ratios, so that the output currents of the main lighting driving circuit 200 and the atmosphere lamp driving circuit 300 are changed, the brightness of the main lighting lamp and the atmosphere lamp is changed, the duty ratio of the PWM signals output by the PWM output ends can be changed between 0% and 100%, and the user only needs to touch the touch area and slide on the touch area, and the corresponding light brightness of the main lighting lamp and the atmosphere lamp can be adjusted between the main lighting lamp and the atmosphere lamp can be turned off.
After the user lightly touches the main lighting lamp touch switch K5 and the atmosphere lamp touch switch K4, the main control chip U1 recognizes the touch signal and respectively controls the on-off states of the main lighting lamp and the atmosphere lamp through the output level signals of the main lighting switch signal end PIN6 and the atmosphere lamp switch signal end PIN5, and further, when the duration of the user touching the main lighting lamp touch switch K5 and the atmosphere lamp touch switch K4 is longer than two seconds, the main control chip U1 respectively changes the color temperature combination proportion of the main lighting lamp and the mixed light color of the atmosphere lamp through the PWM signals of different duty ratios output by the PWM signal output end, so that the main lighting lamp outputs light rays of different color temperatures and the atmosphere lamp outputs mixed light colors of different colors. In addition, when the user touches the dimming touch bar and slides among the three touch areas, the main control chip U1 recognizes continuous touch signals of the dimming touch bar and controls the PWM output end to output corresponding duty ratio PWM signals so as to change the brightness of the main lighting lamp and the atmosphere lamp.
As shown in fig. 2 and 3, in one embodiment, the dimming touch assembly further includes a dimming depth indicator, the dimming depth indicator is disposed on the dimming touch bar, and the dimming depth indicator is connected to the signal end of the indicator of the main control chip U1. In this embodiment, the dimming depth indicator is used for visually displaying the current dimming depth or brightness level, when a user touches and slides on the dimming touch strip, the main control chip U1 detects the touch position according to the received touch signal and calculates the required dimming depth level according to the touch signal, and then, the main control chip U1 outputs a control signal to the dimming depth indicator through the signal end of the indicator and lights the dimming depth indicator corresponding to the dimming depth, so that the user can visually understand the dimming depth through the dimming depth indicator.
As shown in fig. 2 and 3, in one embodiment, the number of the dimming depth indicator lamps is multiple, the dimming depth indicator lamps are arranged on the dimming touch strip at intervals, and each dimming depth indicator lamp is connected with a signal end of an indicator lamp of the main control chip U1. In this embodiment, each dimming depth indicator corresponds to a specific dimming depth range, when a user touches the dimming touch strip and slides between three touch areas, the main control chip U1 calculates the current dimming depth according to the touch signal after detecting the touch position, and when the user touches a certain position between three touch areas, the main control chip U1 outputs a control signal to the corresponding dimming depth indicator through the indicator signal end, so that the corresponding dimming depth indicator is lightened, and as the user slides on the dimming touch strip, different dimming depth indicators are sequentially lightened or extinguished, so as to form visual feedback, thereby being beneficial to the user to accurately know the current dimming state.
As shown in fig. 2 and 3, in one embodiment, the switch assembly further includes a main lighting status indicator lamp D2 and an atmosphere lamp status indicator lamp D1, the main lighting status indicator lamp D2 is disposed adjacent to the main lighting touch switch K5, the atmosphere lamp status indicator lamp D1 is disposed adjacent to the atmosphere lamp touch switch K4, the main lighting status indicator lamp D2 is connected with the main lighting status signal terminal PIN13 of the main control chip U1, and the atmosphere lamp status indicator lamp D1 is connected with the atmosphere lamp status signal terminal PIN12 of the main control chip U1. In this embodiment, the main lighting status indicator lamp D2 and the atmosphere lamp status indicator lamp D1 are used for visually displaying the current status of the main lighting lamp and the atmosphere lamp, when the user touches the main lighting lamp touch switch K5 or the atmosphere lamp touch switch K4 to turn on or off the corresponding light, the main control chip U1 detects a touch signal, and outputs a control signal to the corresponding status indicator lamp through the main lighting status signal terminal PIN13 or the atmosphere lamp status signal terminal PIN12, so that the main lighting status indicator lamp D2 and the atmosphere lamp status indicator lamp D1 are turned on or off, thereby providing visual feedback for the user to display whether the main lighting lamp or the atmosphere lamp is currently in the on or off status. In addition, when the user adjusts the luminance of main light or atmosphere lamp through the touch strip of adjusting luminance, if main light or atmosphere lamp are in degree of depth and luminance darker, main lighting state pilot lamp D2 and atmosphere lamp state pilot lamp D1 are favorable to the user to confirm whether it is in normal operating condition.
As shown in fig. 3, in one embodiment, the main lighting driving circuit 200 includes a first main lighting control circuit and a second main lighting control circuit, the first main lighting control circuit includes a cold light dimming chip U2 and a first resistor R1, a cold light PWM output end PWM-C of the main control chip U1 is connected with a cold light PWM signal receiving end PWM-C1 of the cold light dimming chip U2 through the first resistor R1, the second main lighting control circuit includes a warm light dimming chip U3 and a second resistor R2, and a warm light PWM output end PWM-W of the main control chip U1 is connected with a warm light PWM signal receiving end PWM-W1 of the warm light dimming chip U3 through the second resistor R2. In this embodiment, the cold light dimming chip U2 and the warm light dimming chip U3 are respectively configured to receive PWM signals output from the cold light PWM output end PWM-C and the warm light PWM output end PWM-W of the main control chip U1, and adjust currents output to the cold light source and the warm light source according to duty ratios of the received PWM signals, so as to control brightness of the cold light source and the warm light source, and further enable the main lighting lamp to output light rays with different color temperatures and brightness according to requirements of users to meet requirements of various lighting scenes.
As shown in fig. 4, in one embodiment, the atmosphere lamp driving circuit 300 includes a first atmosphere lamp control circuit, a second atmosphere lamp control circuit and a third atmosphere lamp control circuit, a red light PWM output end PWM-R of the main control chip U1 is connected with a red light PWM signal receiving end PWM-R1 of the first atmosphere lamp control circuit, a green light PWM output end PWM-G of the main control chip U1 is connected with a green light PWM signal receiving end PWM-G1 of the second atmosphere lamp control circuit, and a blue light PWM output end PWM-B of the main control chip U1 is connected with a blue light PWM signal receiving end PWM-B1 of the third atmosphere lamp control circuit. In this embodiment, the first, second and third atmosphere lamp control circuits are respectively configured to receive PWM signals output by the red, green and blue PWM output terminals PWM-R, PWM-G and PWM-B of the main control chip U1, and respectively adjust currents output to the red, green and blue light sources according to duty ratios of the received PWM signals, so as to accurately control brightness of the red, green and blue light sources, and by mixing light of the three light colors, the atmosphere lamp is capable of outputting mixed light colors of multiple different colors, thereby satisfying diversified requirements of users for atmosphere illumination.
As shown in fig. 4, in one embodiment, the first atmosphere lamp control circuit includes a third resistor R24 and a first electronic switch tube Q1, a red light PWM output end PWM-R of the main control chip U1 is connected to a control end of the first electronic switch tube Q1 through the third resistor R24, a first end of the first electronic switch tube Q1 is used to be connected to a red light LED lamp, and a second end of the first electronic switch tube Q1 is grounded. In this embodiment, when the red light PWM output terminal PWM-R of the main control chip U1 outputs a high level signal, the high level signal flows to the control terminal of the first electronic switching tube Q1, so that the voltage of the control terminal of the first electronic switching tube Q1 is greater than the threshold voltage thereof, thereby making the first electronic switching tube Q1 conductive and allowing current to pass through to drive the red LED lamp to emit light, when the PWM signal is low level, the first electronic switching tube Q1 is turned off and cuts off the current loop to extinguish the red LED lamp, specifically, by adjusting the duty ratio of the PWM signal, i.e., the ratio of the high level to the low level, the average current of the red LED lamp can be controlled, thereby precisely adjusting the brightness of the red LED lamp. Meanwhile, the third resistor R24 plays a role in current limiting and protection, so that the control end of the first electronic switching tube Q1 is ensured not to be damaged due to overlarge current.
In another embodiment, the first electronic switching tube Q1 is an N-channel MOS tube, the first end of the first electronic switching tube Q1 is a drain electrode of the N-channel MOS tube, the second end of the first electronic switching tube Q1 is a source electrode of the N-channel MOS tube, and the control end of the first electronic switching tube Q1 is a gate electrode of the N-channel MOS tube.
As shown in fig. 4, in one embodiment, the second atmosphere lamp control circuit includes a fourth resistor R25 and a second electronic switch tube Q2, the green light PWM output end PWM-G of the main control chip U1 is connected to the control end of the second electronic switch tube Q2 through the fourth resistor R25, the first end of the second electronic switch tube Q2 is used to connect to the green light LED lamp, and the second end of the second electronic switch tube Q2 is grounded. In this embodiment, when the green light PWM output terminal PWM-G of the main control chip U1 outputs a high level signal, the high level signal flows to the control terminal of the second electronic switching tube Q2, so that the voltage of the control terminal of the second electronic switching tube Q2 is greater than the threshold voltage thereof, thereby making the second electronic switching tube Q2 conductive and allowing current to pass through to drive the green light LED lamp to emit light, when the PWM signal is at a low level, the second electronic switching tube Q2 is turned off, cutting off the current loop to extinguish the green light LED lamp, specifically, by adjusting the duty ratio of the PWM signal, i.e., the ratio of the high level to the low level, the average current of the green light LED lamp can be controlled, thereby precisely adjusting the brightness of the green light LED lamp. Meanwhile, the fourth resistor R25 plays a role in current limiting and protection, so that the control end of the second electronic switching tube Q2 is ensured not to be damaged due to overlarge current.
In another embodiment, the second electronic switching tube Q2 is an N-channel MOS tube, the first end of the second electronic switching tube Q2 is a drain electrode of the N-channel MOS tube, the second end of the second electronic switching tube Q2 is a source electrode of the N-channel MOS tube, and the control end of the second electronic switching tube Q2 is a gate electrode of the N-channel MOS tube.
As shown in fig. 4, in one embodiment, the third atmosphere lamp control circuit includes a fifth resistor R26 and a third electronic switch tube Q3, the blue light PWM output PWM-B of the main control chip U1 is connected to the control end of the third electronic switch tube Q3 through the fifth resistor R26, the first end of the third electronic switch tube Q3 is used for being connected to the blue light LED lamp, and the second end of the third electronic switch tube Q3 is grounded. In this embodiment, when the blue light PWM output terminal PWM-B of the main control chip U1 outputs a high level signal, the high level signal flows to the control terminal of the third electronic switching tube Q3, so that the voltage of the control terminal of the third electronic switching tube Q3 is greater than the threshold voltage thereof, thereby making the third electronic switching tube Q3 conductive and allowing current to pass through to drive the blue light LED lamp to emit light, when the PWM signal is low level, the third electronic switching tube Q3 is turned off and cuts off the current loop to extinguish the blue light LED lamp, specifically, by adjusting the duty ratio of the PWM signal, that is, the ratio of the high level to the low level, the average current of the blue light LED lamp can be controlled, thereby precisely adjusting the brightness of the blue light LED lamp. Meanwhile, the fifth resistor R26 plays a role in current limiting and protecting, so that the control end of the third electronic switching tube Q3 is ensured not to be damaged due to overlarge current.
In another embodiment, the third electronic switching tube Q3 is an N-channel MOS tube, the first end of the third electronic switching tube Q3 is a drain electrode of the N-channel MOS tube, the second end of the third electronic switching tube Q3 is a source electrode of the N-channel MOS tube, and the control end of the third electronic switching tube Q3 is a gate electrode of the N-channel MOS tube.
A dimmed lighting fixture comprising a touch-sensitive dimming toning circuit 10 according to any one of the above. In this embodiment, when a user briefly touches the main illumination lamp touch switch K5, the main control chip U1 detects a short touch signal, then the main illumination switch signal terminal PIN6 of the main control chip U1 outputs a high level signal, meanwhile, the cold light PWM output terminal PWM-C and the warm light PWM output terminal PWM-W of the main control chip U1 output PWM signals respectively, after the cold light PWM signal receiving terminal PWM-C1 and the warm light PWM signal receiving terminal PWM-W1 of the main illumination driving circuit 200 receive PWM signals, the cold light source and the warm light source respectively output light rays of cold light and warm light color temperature and mix light to output the light rays as the main illumination lamp light rays, when the user touches the main illumination lamp touch switch K5 for a duration of more than two seconds, the main control chip U1 detects a long touch signal, and simultaneously, the cold light PWM output terminal PWM-C and the warm light PWM output terminal PWM-W of the main control chip U1 output PWM signals with different duty ratios to the cold light PWM signal receiving terminal PWM-C1 and the warm light PWM signal receiving terminal PWM-W1 respectively, and the cold light source and the warm light source are controlled by adjusting the duty ratios of the two signals to control the cold light and warm light source to stop the current and the main illumination lamp touch switch K5 for a duration of more than two seconds, thereby realizing continuous color temperature change of the main illumination lamp K2700, and continuous color temperature change when the main illumination lamp touch panel K is touched. Further, when the user briefly touches the atmosphere lamp touch switch K4, the main control chip U1 detects a short touch signal, and then the atmosphere lamp switch signal terminal PIN5 of the main control chip U1 outputs a high-level signal, and simultaneously the red light PWM output terminal PWM-R, the green light PWM output terminal PWM-G and the blue light PWM output terminal PWM-B of the main control chip U1 output PWM signals to the red light PWM signal receiving terminal PWM-R1, the green light PWM signal receiving terminal PWM-G1 and the blue light PWM signal receiving terminal PWM-B1 of the atmosphere lamp driving circuit 300 respectively, so that the red light, the green light and the blue light sources output red light, green light and blue light respectively, When a user touches the atmosphere lamp touch switch K4 for a duration longer than two seconds, the main control chip U1 detects a long-time touch signal, meanwhile, the red PWM output end PWM-R, the green PWM output end PWM-G and the blue PWM output end PWM-B of the main control chip U1 respectively output PWM signals with different duty ratios, and after receiving the PWM signals with different duty ratios, the red PWM signal receiving end PWM-R1, the green PWM signal receiving end PWM-G1 and the blue PWM signal receiving end PWM-B1 of the atmosphere lamp driving circuit 300 can make red, green, blue and blue, The three light sources of green and blue light emit light rays with different proportions and are mixed to form colored atmosphere lamp light rays. Specifically, when a user stops touching the atmosphere lamp touch switch K4, the red PWM output end PWM-R, the green PWM output end PWM-G and the blue PWM output end PWM-B of the main control chip U1 output current duty ratio PWM signals, the red PWM signal receiving end PWM-R1, the green PWM signal receiving end PWM-G1 and the blue PWM signal receiving end PWM-B1 of the atmosphere lamp driving circuit 300 receive the current duty ratio PWM signals, so that the atmosphere lamp is stopped at the current light color and keeps outputting light, and if the user touches the atmosphere lamp touch switch K4 again, the main control chip U1 continues to output PWM signals with different duty ratios according to the current light color state, so that the atmosphere lamp continues to circularly output different light colors on the basis of the current light color, and stops at the current light color after the atmosphere lamp touch switch K4 is released again. Further, the dimming touch bar is a long bar touch area formed by the first touch area K1, the second touch area K2 and the third touch area K3 when the PCB is arranged, and the specific layout is shown in fig. 6. When a user slides on the dimming touch bar through a finger and the main lighting driving circuit 200 and the atmosphere lamp driving circuit 300 are in a working state, the main control chip U1 detects a touch signal through the dimming touch bar, the position of the touch signal is identified through the first touch area K1, the second touch area K2 and the third touch area K3, then the main control chip U1 controls the cold light PWM output end PWM-C, the warm light PWM output end PWM-W, the red light PWM output end PWM-R, the green light PWM output end PWM-G and the blue light PWM output end PWM-B to output PWM signals with corresponding duty ratios, so that the output currents of the main lighting driving circuit 200 and the atmosphere lamp driving circuit 300 are changed, the brightness of the main lighting lamp and the atmosphere lamp is changed, the duty ratio of the PWM signals output by the PWM output ends can be changed between 0% and 100%, and the user only needs to touch the touch area and slide on the touch area, and the corresponding light brightness of the main lighting lamp and the atmosphere lamp can be adjusted between the main lighting lamp and the atmosphere lamp can be turned off. .
Compared with the prior art, the method has at least the following advantages:
1. After the user lightly touches the main lighting lamp touch switch K5 and the atmosphere lamp touch switch K4, the main control chip U1 recognizes the touch signal and respectively controls the on-off states of the main lighting lamp and the atmosphere lamp through the output level signals of the main lighting switch signal end PIN6 and the atmosphere lamp switch signal end PIN5, and further, when the duration of the user touching the main lighting lamp touch switch K5 and the atmosphere lamp touch switch K4 is longer than two seconds, the main control chip U1 respectively changes the color temperature combination proportion of the main lighting lamp and the mixed light color of the atmosphere lamp through the PWM signals of different duty ratios output by the PWM signal output end, so that the main lighting lamp outputs light rays of different color temperatures and the atmosphere lamp outputs mixed light colors of different colors. In addition, when the user touches the dimming touch bar and slides among the three touch areas, the main control chip U1 recognizes continuous touch signals of the dimming touch bar and controls the PWM output end to output corresponding duty ratio PWM signals so as to change the brightness of the main lighting lamp and the atmosphere lamp.
2. Touch-control formula mixing of colors circuit 10 that adjusts luminance still includes main lighting state pilot lamp D2, atmosphere lamp state pilot lamp D1 and a plurality of degree of depth pilot lamp that adjusts luminance, is favorable to the user to know the operating condition of main lighting lamp and atmosphere lamp directly perceivedly through main lighting state pilot lamp D2 and atmosphere lamp state pilot lamp D1, can know the degree of depth of adjusting luminance of main lighting lamp and atmosphere lamp through the degree of depth pilot lamp that adjusts luminance simultaneously to user experience has been strengthened and the inconvenience that the maloperation brought has been avoided.
The foregoing examples represent only a few embodiments of the present disclosure, which are described in more detail and detail, but are not to be construed as limiting the scope of the disclosure. It should be noted that variations and modifications can be made by those skilled in the art without departing from the spirit of the disclosure, which are within the scope of the disclosure. Accordingly, the scope of protection of the present disclosure should be determined by the following claims.
Claims (10)
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