CN215453342U - Lighting circuit, lighting device and LED lighting lamp - Google Patents
Lighting circuit, lighting device and LED lighting lamp Download PDFInfo
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- CN215453342U CN215453342U CN202121606813.7U CN202121606813U CN215453342U CN 215453342 U CN215453342 U CN 215453342U CN 202121606813 U CN202121606813 U CN 202121606813U CN 215453342 U CN215453342 U CN 215453342U
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Abstract
The application discloses a lighting circuit, a lighting device and an LED lighting lamp.A power supply module converts power supply voltage into first power supply voltage according to a first control signal, outputs the first power supply voltage to a display module and provides power for the display module so as to display an image by an input image signal; the power supply module also converts the power supply voltage into a second power supply voltage according to a second control signal, and outputs the second power supply voltage to the illumination compensation module, so that the illumination compensation module is powered on to emit light when inputting the second power supply voltage and performs light compensation on image display of the display module, the brightness and the color rendering index of the display module during image display are improved, and the illumination lamp can meet the requirements of normal illumination brightness and color rendering index while performing image display.
Description
Technical Field
The application belongs to the technical field of lighting, especially, relate to a lighting circuit, lighting device and LED illumination lamps and lanterns.
Background
The conventional LED (light-emitting diode) illuminating lamp only has the function of adjusting brightness or color, and cannot display images. And the display device with the image display function is generally an LED display screen or a landscape lighting lamp, and the display devices have the problems of low brightness or low color rendering index and cannot meet the lighting requirement of a normal scene.
SUMMERY OF THE UTILITY MODEL
The application aims to provide a power supply circuit, and aims to solve the problem that a traditional lighting circuit is low in brightness or color rendering index.
A first aspect of embodiments of the present application provides a lighting circuit, including:
the power supply module is configured to output a first power supply voltage according to the first control signal and output a second power supply voltage according to the second control signal;
the display module is connected with the power supply module and is configured to display images according to the first power supply voltage and input image signals; and
and the illumination compensation module is connected with the power supply module and is configured to perform optical compensation on the image display according to the second power supply voltage.
In one embodiment, the display module comprises a playing component and a display component;
the playing component is configured to output a display signal according to the image signal;
the display component is connected with the playing component and configured to display images according to the first power supply voltage and the display signal.
In one embodiment, the power module includes a control component, a first voltage transformation component and a second voltage transformation component;
the control component is configured to output a first pulse signal according to the first control signal and output a second pulse signal according to the second control signal;
the first voltage transformation component is connected with the control component and is configured to output the first power supply voltage according to the first pulse signal;
and the second voltage transformation component is connected with the control component and is configured to output the second power supply voltage according to the second pulse signal.
In one embodiment, the playing component includes a decoding unit, a storage unit and a control unit;
the storage unit is configured to store image data;
the decoding unit is connected with the storage unit and is configured to receive the image signal and decode the image data according to the image signal and generate a driving signal;
the control unit is connected with the decoding unit and configured to output the display signal according to the driving signal.
In one embodiment, the display assembly comprises an LED display array;
the LED display array is configured to be powered on when the first power supply voltage is input, and performs image display according to the display signal.
In one embodiment, the LED display array includes a plurality of cool white LED beads, a plurality of warm white LED beads, a plurality of blue LED beads, a plurality of green LED beads, a plurality of red LED beads, and a plurality of green LED beads.
In one embodiment, the first transformer assembly includes a first voltage modulation chip, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, a first photo resistor, a second photo resistor, a first diode, a second diode, a first field effect transistor, and a first inductor;
the first end of the first resistor is connected to the first pulse signal input end of the first voltage transformation component, the second end of the first resistor, the first end of the second capacitor and the control end of the first voltage modulation chip are connected in common, the first end of the third capacitor is connected with the power end of the first voltage modulation chip, the first end of the first capacitor, the first end of the third resistor, the first end of the fourth resistor, the anode of the first diode, the cathode of the second diode and the first end of the sixth resistor are connected in common and connected to the power supply voltage input end of the first voltage transformation component, the second end of the third resistor, the second end of the fourth resistor, the cathode of the first diode, the first end of the fifth capacitor, the first end of the seventh resistor and the current feedback end of the first voltage modulation chip are connected in common and connected to the first pulse signal input end of the first voltage transformation component A first output terminal of a supply voltage, a first terminal of the first inductor, a first terminal of the fifth capacitor, and a first terminal of the seventh resistor are connected to a second output terminal of the first supply voltage of the first transformer assembly, a second terminal of the sixth resistor is connected to a first terminal of the fourth capacitor, an anode of the second diode, a second terminal of the fourth capacitor, and a first terminal of the first photo resistor are connected in common, a second terminal of the first inductor is connected to a first terminal of the second photo resistor, a second terminal of the first photo resistor, a second terminal of the second photo resistor, a second terminal of the sixth capacitor, and a drain of the first fet are connected in common, a gate of the first fet is connected to a first terminal of the fifth resistor, and a second terminal of the fifth resistor is connected to an output terminal of the first voltage modulation chip, the second end of the second resistor, the second end of the first capacitor, the second end of the second capacitor, the second end of the sixth capacitor, the ground terminal of the first voltage modulation chip, the second end of the third capacitor, and the source electrode of the first field effect transistor are all connected with a power ground.
In an embodiment, the second voltage transformation component includes a second voltage modulation chip, a seventh capacitor, an eighth capacitor, a ninth capacitor, a tenth capacitor, an eleventh capacitor, a twelfth capacitor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a third photo resistor, a fourth photo resistor, a third diode, a fourth diode, a second field effect transistor, and a second inductor;
a first end of the eighth resistor is connected to the second pulse signal input end of the second voltage transformation component, a second end of the eighth resistor, a first end of the ninth resistor, a first end of the eighth capacitor and a control end of the second voltage modulation chip are connected in common, a first end of the ninth capacitor is connected to a power end of the second voltage modulation chip, a first end of the seventh capacitor, a first end of the tenth resistor, a first end of the eleventh resistor, an anode of the third diode, a cathode of the fourth diode and a first end of the thirteenth resistor are connected in common and connected to a power voltage input end of the second voltage transformation component, a second end of the tenth resistor, a second end of the eleventh resistor, a cathode of the third diode, a first end of the eleventh capacitor, a first end of the fourteenth resistor and a current feedback end of the second voltage modulation chip are connected in common and connected to the second voltage transformation component A first output terminal of a second power supply voltage of the device, a first terminal of the second inductor, a first terminal of the eleventh capacitor, and a first terminal of the fourteenth resistor are connected to the second output terminal of the second power supply voltage of the second voltage transformation device, a second terminal of the thirteenth resistor is connected to the first terminal of the tenth capacitor, an anode of the fourth diode, a second terminal of the tenth capacitor, and a first terminal of the third photo resistor are connected in common, a second terminal of the second inductor is connected to the first terminal of the fourth photo resistor, a second terminal of the third photo resistor, a second terminal of the fourth photo resistor, a second terminal of the twelfth capacitor, and a drain of the second fet are connected in common, a gate of the second fet is connected to the first terminal of the twelfth resistor, and a second terminal of the twelfth resistor is connected to the output terminal of the second voltage modulation chip, the second end of the ninth resistor, the second end of the seventh capacitor, the second end of the eighth capacitor, the second end of the twelfth capacitor, the ground terminal of the second voltage modulation chip, the second end of the ninth capacitor, and the source electrode of the second field effect transistor are all connected with a power ground.
A second aspect of embodiments of the present application provides a lighting device comprising the lighting circuit according to any one of the first aspect.
A third aspect of embodiments of the present application provides an LED lighting fixture, including the lighting circuit according to any one of the first aspect.
Compared with the prior art, the embodiment of the utility model has the following beneficial effects: converting the power supply voltage into a first power supply voltage according to the first control signal through the power supply module, and outputting the first power supply voltage to the display module, so that the display module performs image display according to an input image signal when the first power supply voltage is input, and image display is realized; the power supply module also converts the power supply voltage into a second power supply voltage according to a second control signal, and outputs the second power supply voltage to the illumination compensation module, so that the illumination compensation module is powered on to emit light when inputting the second power supply voltage and performs optical compensation on image display of the display module, the brightness and the color rendering index of the display module during image display are improved, and the illumination circuit can meet the requirements of normal illumination brightness and color rendering index while performing image display.
Drawings
Fig. 1 is a first exemplary functional block diagram of a lighting circuit provided by an embodiment of the present application;
fig. 2 is a second exemplary functional block diagram of a lighting circuit provided by an embodiment of the present application;
fig. 3 is a third exemplary functional block diagram of a lighting circuit provided by an embodiment of the present application;
fig. 4 is an exemplary circuit schematic diagram of a lighting circuit provided in an embodiment of the present application.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1, an embodiment of the present disclosure provides a lighting circuit including a power module 100, a display module 200, and an illumination compensation module 300.
The power module 100 is configured to output a first supply voltage according to a first control signal and output a second supply voltage according to a second control signal.
The display module 200 is connected to the power module 100 and configured to display an image according to the first power supply voltage and an input image signal.
And an illumination compensation module 300 connected to the power supply module 100 and configured to perform optical compensation on the image display according to the second supply voltage.
In this embodiment, the power module 100 converts a power voltage into a first power voltage according to a first control signal input from the outside, and outputs the first power voltage to the display module 200, so that the display module 200 performs image display according to an input image signal when the first power voltage is input, and the image display changes along with the change of the image signal, so that the display module 200 can implement dynamic image display; the brightness of the image display of the display module 200 is positively correlated with the first power supply voltage, so that the first power supply voltage can be controlled by the first control signal, thereby controlling the brightness of the image display of the display module 200. The power supply module 100 also converts the power supply voltage into a second power supply voltage according to a second control signal input from the outside, and outputs the second power supply voltage to the illumination compensation module 300, so that the illumination compensation module 300 is powered on to emit light when the second power supply voltage is input, and performs light compensation on image display of the display module 200, thereby improving the brightness and the color rendering index when the display module 200 performs image display, so that the illumination circuit can meet the requirements of normal illumination brightness and color rendering index when performing image display.
The first control signal is a wired signal or a wireless signal; the second control signal is a wired signal or a wireless signal; the image signal is a wired signal or a wireless signal. The first control signal and the second control signal may be illumination signals output by the illumination sensor, and when the illumination signals are smaller, the first control signal and the second control signal are both smaller, and at this time, the first power supply voltage and the second power supply voltage output by the power output module are both correspondingly increased.
The image display of the display module 200 may be a dynamic image display or a static image display. When the image display of the display module 200 is a dynamic image display, it can be understood that the display module 200 is playing a video.
Referring to FIG. 2, in one embodiment, the display module 200 includes a playback component 210 and a display component 220.
The playing component 210 is configured to output a display signal according to the image signal.
And the display component 220 is connected with the playing component 210 and configured to display images according to the first power supply voltage and the display signal.
In this embodiment, the playing component 210 outputs a display signal to the display component 220 according to the image signal, so that the display component 220 performs corresponding image display according to the display signal when the first power supply voltage is input, thereby implementing image display of the display module 200.
The display component 220 may be an LED display screen, an LCD display screen, an OLED display screen, or other devices having a display function.
Referring to fig. 2, in an embodiment, a power module 100 includes a control component 110, a first voltage transformation component 120, and a second voltage transformation component 130.
The control component 110 is configured to output a first pulse signal according to a first control signal and output a second pulse signal according to a second control signal.
The first voltage transformation component 120 is connected to the control component 110 and configured to output a first supply voltage according to the first pulse signal.
The second voltage transformation component 130 is connected to the control component 110 and configured to output a second supply voltage according to the second pulse signal.
In the present embodiment, the control component 110 outputs a first pulse signal to the first voltage transformation component 120 according to a first control signal, so that the first voltage transformation component 120 converts the power voltage into a first power voltage according to the first pulse signal; meanwhile, the control component 110 outputs a second pulse signal to the second voltage transformation component 130 according to the second control signal, so that the second voltage transformation component 130 converts the power voltage into a second power supply voltage according to the second pulse signal. The stability of transforming the power voltage by controlling the first transforming component 120 and the second transforming component 130 can be improved by controlling the first transforming component 120 and the second transforming component 130 through the pulse signal.
The control component 110 includes a single chip for outputting a pulse signal.
Referring to fig. 3, in an embodiment, the playing component 210 includes a decoding unit 212, a storage unit 213, and a control unit 211.
A storage unit 213 configured to store image data.
The decoding unit 212 is connected to the storage unit 213, and configured to receive the image signal, decode the image data according to the image signal, and generate a driving signal.
And a control unit 211 connected to the decoding unit 212 and configured to output a display signal according to the driving signal.
In the present embodiment, the decoding unit 212, upon receiving the image signal, calls and decodes the image data in the storage unit 213 according to the image signal to generate a drive signal, and outputs the drive signal to the control unit 211. The control unit 211 outputs a corresponding display signal to the display module 200 according to the driving signal, so that the display module 200 displays a corresponding image according to the display signal.
In one embodiment, the display assembly 220 includes an LED display array.
And the LED display array is configured to be powered on when the first power supply voltage is input, and performs image display according to the display signal.
In one embodiment, the LED display array includes a plurality of cool white LED beads, a plurality of warm white LED beads, a plurality of blue LED beads, a plurality of green LED beads, a plurality of red LED beads, and a plurality of green LED beads.
In this embodiment, the display module 220 is composed of a plurality of cold white LED beads, a plurality of warm white LED beads, a plurality of blue LED beads, a plurality of green LED beads, a plurality of red LED beads, and a plurality of green LED beads, so that the display effect of the display module 220 is more various.
Referring to fig. 4, in an embodiment, the first voltage transforming component 120 includes a first voltage modulation chip U1, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, a first photo resistor RL1, a second photo resistor RL2, a first diode D1, a second diode D2, a first field effect transistor Q1, and a first inductor L1.
A first end of the first resistor R1 is connected to the first pulse signal input end of the first transformer module 120, a second end of the first resistor R1, a first end of the second resistor R2, a first end of the second capacitor C2 and a control end of the first voltage modulation chip U1 are connected in common, a first end of the third capacitor C3 is connected to the power supply end of the first voltage modulation chip U1, a first end of the first capacitor C1, a first end of the third resistor R3, a first end of the fourth resistor R4, an anode of the first diode D1, a cathode of the second diode D2 and a first end of the sixth resistor R6 are connected in common and connected to the VIN input end of the first transformer module 120, a second end of the third resistor R3, a second end of the fourth resistor R4, a cathode of the first diode D1, a first end of the fifth capacitor C5, a first end of the seventh resistor R7 and a first end of the first voltage modulation chip U1 are connected to the first transformer module VIN output end of the first voltage feedback module 120, a first end of a first inductor L1, a first end of a fifth capacitor C5, and a first end of a seventh resistor R7 are commonly connected to a second output end of the first power supply voltage of the first voltage transformation element 120, a second end of a sixth resistor R6 is connected to a first end of a fourth capacitor C4, an anode of a second diode D2, a second end of a fourth capacitor C4, and a first end of a first photoresistor RL1 are commonly connected, a second end of a first inductor L1 is connected to a first end of a second photoresistor RL2, a second end of a first photoresistor RL1, a second end of a second photoresistor RL2, a second end of a sixth capacitor C6, and a drain of a first field effect transistor Q1 are commonly connected, a gate of a first field effect transistor Q1 is connected to a first end of a fifth resistor R5, a second end of a fifth resistor R5 is connected to an output end of a first voltage modulation chip U1, a second end of a second resistor R2, a second end of a second resistor R1, a second end of a second capacitor C2, a second end of a second capacitor C362, and a first end of a second capacitor C2, The second terminal of the sixth capacitor C6, the ground terminal of the first voltage modulation chip U1, the second terminal of the third capacitor C3, and the source of the first fet Q1 are all connected to ground.
Referring to fig. 4, in an embodiment, the second voltage transforming component 130 includes a second voltage modulating chip U2, a seventh capacitor C7, an eighth capacitor C8, a ninth capacitor C9, a tenth capacitor C10, an eleventh capacitor C11, a twelfth capacitor C12, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a third photo resistor RL3, a fourth photo resistor RL4, a third diode D3, a fourth diode D4, a second fet Q2, and a second inductor L2.
A first end of an eighth resistor R8 is connected to the second pulse signal input end of the second transformer assembly 130, a second end of an eighth resistor R8, a first end of a ninth resistor R9, a first end of an eighth capacitor C8 and a control end of the second voltage modulation chip U2 are connected in common, a first end of a ninth capacitor C9 is connected to the power supply end of the second voltage modulation chip U2, a first end of a seventh capacitor C7, a first end of a tenth resistor R10, a first end of an eleventh resistor R11, an anode of a third diode D3, a cathode of a fourth diode D4 and a first end of a thirteenth resistor R13 are connected in common and to the supply voltage VIN input end of the second transformer assembly 130, a second end of a tenth resistor R10, a second end of an eleventh resistor R11, a cathode of a third diode D3, a first end of an eleventh capacitor C11, a first end of a fourteenth resistor R14 and a cathode of the second voltage modulation chip U2 are connected to the common supply voltage VIN input end of the second transformer assembly 130, a first end of a second inductor L2, a first end of an eleventh capacitor C11, and a first end of a fourteenth resistor R14 are commonly connected to a second output end of the second power supply voltage of the second voltage transformation element 130, a second end of a thirteenth resistor R13 is connected to a first end of a tenth capacitor C10, an anode of a fourth diode D4, a second end of a tenth capacitor C10, and a first end of a third photo resistor RL3 are commonly connected, a second end of the second inductor L2 is connected to a first end of a fourth photo resistor RL4, a second end of the third photo resistor RL3, a second end of a fourth photo resistor RL4, a second end of a twelfth capacitor C12, and a drain of a second fet Q2 are commonly connected, a gate of the second fet Q2 is connected to a first end of a twelfth resistor R12, a second end of the twelfth resistor R12 is connected to an output end of the second voltage modulation chip 2, a seventh end of the ninth resistor R9, and a seventh end of the seventh capacitor C7, The second terminal of the eighth capacitor C8, the second terminal of the twelfth capacitor C12, the ground terminal of the second voltage modulation chip U2, the second terminal of the ninth capacitor C9, and the source of the second fet Q2 are all connected to ground.
The lighting circuit shown in fig. 4 is described below with reference to the working principle:
the control device 110 outputs a first pulse signal to the control terminal of the first voltage modulation chip U1 according to the input first control signal, and the first voltage modulation chip U1 outputs a third pulse signal to the gate of the first fet Q1 according to the first pulse signal, so as to control the on-ratio of the first fet Q1. When the third pulse signal is at a low level, the first field effect transistor Q1 is turned off, and the power supply voltage VIN is converted into a first power supply voltage; when the third pulse signal is at a high level, the first field effect transistor Q1 is turned on, and the power supply voltage VIN stops being converted into the first power supply voltage; therefore, the first power supply voltage is related to the turn-on ratio of the first fet Q1, and the magnitude of the first power supply voltage can be controlled by controlling the turn-on ratio of the first fet Q1. The first power supply voltage supplies power to the display module 200 so that the display module 200 performs image display according to an input image signal. Meanwhile, the control component 110 outputs a second pulse signal to the control terminal of the first voltage modulation chip U1 according to the input first control signal, so as to control the magnitude of the second power supply voltage by controlling the on-ratio of the second fet Q2. The second power supply voltage supplies power to the illumination compensation module 300, so that the illumination compensation module 300 is powered on to optically compensate for image display of the display module 200.
The embodiment of the present application further provides an illumination device, which includes the illumination circuit according to any of the above embodiments, because the illumination device according to the present embodiment includes the illumination circuit according to any of the above embodiments, the illumination device according to the present embodiment at least includes the corresponding advantageous effects of the illumination circuit according to any of the above embodiments.
The embodiment of the present application further provides an LED lighting fixture, which includes the lighting circuit according to any of the above embodiments, and because the LED lighting fixture according to the present embodiment includes the lighting circuit according to any of the above embodiments, the LED lighting fixture according to the present embodiment at least includes the beneficial effects corresponding to the lighting circuit according to any of the above embodiments.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. A lighting circuit, comprising:
the power supply module is configured to output a first power supply voltage according to the first control signal and output a second power supply voltage according to the second control signal;
the display module is connected with the power supply module and is configured to display images according to the first power supply voltage and input image signals; and
and the illumination compensation module is connected with the power supply module and is configured to perform optical compensation on the image display according to the second power supply voltage.
2. The lighting circuit of claim 1, wherein the display module comprises a playback component and a display component;
the playing component is configured to output a display signal according to the image signal;
the display component is connected with the playing component and configured to display images according to the first power supply voltage and the display signal.
3. The lighting circuit of claim 1, wherein the power module comprises a control component, a first voltage transformation component, and a second voltage transformation component;
the control component is configured to output a first pulse signal according to the first control signal and output a second pulse signal according to the second control signal;
the first voltage transformation component is connected with the control component and is configured to output the first power supply voltage according to the first pulse signal;
and the second voltage transformation component is connected with the control component and is configured to output the second power supply voltage according to the second pulse signal.
4. The lighting circuit of claim 2, wherein the play component comprises a decoding unit, a storage unit, and a control unit;
the storage unit is configured to store image data;
the decoding unit is connected with the storage unit and is configured to receive the image signal and decode the image data according to the image signal and generate a driving signal;
the control unit is connected with the decoding unit and configured to output the display signal according to the driving signal.
5. The lighting circuit of claim 2, wherein the display component comprises an LED display array;
the LED display array is configured to be powered on when the first power supply voltage is input, and performs image display according to the display signal.
6. The lighting circuit of claim 5, wherein the LED display array comprises a number of cool white LED beads, a number of warm white LED beads, a number of blue LED beads, a number of red LED beads, and a number of green LED beads.
7. The lighting circuit of claim 3, wherein the first voltage transforming component comprises a first voltage modulating chip, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, a first light dependent resistor, a second light dependent resistor, a first diode, a second diode, a first field effect transistor, and a first inductor;
the first end of the first resistor is connected to the first pulse signal input end of the first voltage transformation component, the second end of the first resistor, the first end of the second capacitor and the control end of the first voltage modulation chip are connected in common, the first end of the third capacitor is connected with the power end of the first voltage modulation chip, the first end of the first capacitor, the first end of the third resistor, the first end of the fourth resistor, the anode of the first diode, the cathode of the second diode and the first end of the sixth resistor are connected in common and connected to the power supply voltage input end of the first voltage transformation component, the second end of the third resistor, the second end of the fourth resistor, the cathode of the first diode, the first end of the fifth capacitor, the first end of the seventh resistor and the current feedback end of the first voltage modulation chip are connected in common and connected to the first pulse signal input end of the first voltage transformation component A first output terminal of a supply voltage, a first terminal of the first inductor, a first terminal of the fifth capacitor, and a first terminal of the seventh resistor are connected to a second output terminal of the first supply voltage of the first transformer assembly, a second terminal of the sixth resistor is connected to a first terminal of the fourth capacitor, an anode of the second diode, a second terminal of the fourth capacitor, and a first terminal of the first photo resistor are connected in common, a second terminal of the first inductor is connected to a first terminal of the second photo resistor, a second terminal of the first photo resistor, a second terminal of the second photo resistor, a second terminal of the sixth capacitor, and a drain of the first fet are connected in common, a gate of the first fet is connected to a first terminal of the fifth resistor, and a second terminal of the fifth resistor is connected to an output terminal of the first voltage modulation chip, the second end of the second resistor, the second end of the first capacitor, the second end of the second capacitor, the second end of the sixth capacitor, the ground terminal of the first voltage modulation chip, the second end of the third capacitor, and the source electrode of the first field effect transistor are all connected with a power ground.
8. The lighting circuit of claim 3, wherein the second voltage transforming component comprises a second voltage modulating chip, a seventh capacitor, an eighth capacitor, a ninth capacitor, a tenth capacitor, an eleventh capacitor, a twelfth capacitor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a third light dependent resistor, a fourth light dependent resistor, a third diode, a fourth diode, a second field effect transistor, and a second inductor;
a first end of the eighth resistor is connected to the second pulse signal input end of the second voltage transformation component, a second end of the eighth resistor, a first end of the ninth resistor, a first end of the eighth capacitor and a control end of the second voltage modulation chip are connected in common, a first end of the ninth capacitor is connected to a power end of the second voltage modulation chip, a first end of the seventh capacitor, a first end of the tenth resistor, a first end of the eleventh resistor, an anode of the third diode, a cathode of the fourth diode and a first end of the thirteenth resistor are connected in common and connected to a power voltage input end of the second voltage transformation component, a second end of the tenth resistor, a second end of the eleventh resistor, a cathode of the third diode, a first end of the eleventh capacitor, a first end of the fourteenth resistor and a current feedback end of the second voltage modulation chip are connected in common and connected to the second voltage transformation component A first output terminal of a second power supply voltage of the device, a first terminal of the second inductor, a first terminal of the eleventh capacitor, and a first terminal of the fourteenth resistor are connected to the second output terminal of the second power supply voltage of the second voltage transformation device, a second terminal of the thirteenth resistor is connected to the first terminal of the tenth capacitor, an anode of the fourth diode, a second terminal of the tenth capacitor, and a first terminal of the third photo resistor are connected in common, a second terminal of the second inductor is connected to the first terminal of the fourth photo resistor, a second terminal of the third photo resistor, a second terminal of the fourth photo resistor, a second terminal of the twelfth capacitor, and a drain of the second fet are connected in common, a gate of the second fet is connected to the first terminal of the twelfth resistor, and a second terminal of the twelfth resistor is connected to the output terminal of the second voltage modulation chip, the second end of the ninth resistor, the second end of the seventh capacitor, the second end of the eighth capacitor, the second end of the twelfth capacitor, the ground terminal of the second voltage modulation chip, the second end of the ninth capacitor, and the source electrode of the second field effect transistor are all connected with a power ground.
9. A lighting device comprising a lighting circuit as claimed in any one of claims 1 to 8.
10. An LED lighting fixture comprising the lighting circuit of any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121606813.7U CN215453342U (en) | 2021-07-14 | 2021-07-14 | Lighting circuit, lighting device and LED lighting lamp |
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