Lighting device with anti-interference light control circuit

Abstract

A lighting device with an anti-interference light control circuit includes a photosensitive component, a first pull-up resistor, a light source driver, a detection current-limiting resistor, a controller, and a pull-up resistor adjustment circuit. The two ends of the photosensitive component are connected to a first node and a ground point, respectively. The two ends of the first pull-up resistor are connected to a first node and a second node, respectively, and the second node is connected to an operating voltage source. The controller has a detection signal input, a voltage input, a drive signal output, and a control signal output. The detection signal input is connected to the first node through the detection current-limiting resistor, the voltage input is connected to the second node, and the drive signal output is connected to the light source driver. The first, second, and third ends of the pull-up resistor adjustment circuit are connected to the first node, the second node, and the control signal output, respectively.

Description

Technical Field

[0001] The present invention relates to a lighting device, in particular to a lighting device with an anti-interference light control circuit. Background Art

[0002] Conventional lighting control circuits consist of a photosensitive component (e.g., a photoresistor, photodiode, etc.), a pull-up circuit, and a pull-down circuit. An MCU (microcontroller) detects the voltage on the photosensitive component to control the light source, thereby controlling the light output of the light source (e.g., a light-emitting diode).

[0003] However, existing light-control circuits in lighting devices still have many shortcomings that need improvement. For example, light from a light source cannot directly illuminate a photosensitive component. Doing so can cause self-interference, causing the light from the light source to flicker abnormally or reduce its brightness. Furthermore, when multiple lighting devices are activated simultaneously, if the photosensitive component of one lighting device is illuminated by the light source of another lighting device, this can also cause these adverse effects, thus limiting the application range of these lighting devices. Summary of the Invention

[0004] According to one embodiment of the present invention, a lighting device with an anti-interference light control circuit is proposed, which includes a photosensitive component, a first pull-up resistor, a light source driver, a detection current limiting resistor, a controller, and a pull-up resistor adjustment circuit. One end of the photosensitive component is connected to a first node, and the other end is connected to a ground point. One end of the first pull-up resistor is connected to the first node, and the other end is connected to a second node, and the second node is connected to an operating voltage source. The controller has a detection signal input terminal, a voltage input terminal, a drive signal output terminal, and a control signal output terminal. The detection signal input terminal is connected to the first node through the detection current limiting resistor, the voltage input terminal is connected to the second node, and the drive signal output terminal is connected to the light source driver. The first end of the pull-up resistor adjustment circuit is connected to the first node, the second end is connected to the second node, and the third end is connected to the control signal output terminal.

[0005] In one embodiment, the detection signal input terminal receives the detection signal, the drive signal output terminal outputs the drive signal, and the control signal output terminal outputs the control signal. The potential state of the drive signal is the same as the potential state of the detection signal and opposite to the potential state of the control signal.

[0006] In one embodiment, a pull-up resistor adjustment circuit includes a second pull-up resistor, a third pull-up resistor, a driver-controlled current-limiting resistor, and a switch. A first end of the switch is connected to a first node via the second pull-up resistor, a second end of the switch is connected to a second node, and a third end of the switch is connected to a control signal output terminal and the second node via the driver-controlled current-limiting resistor and the third pull-up resistor, respectively.

[0007] In one embodiment, the switch is a transistor or a metal oxide semiconductor field effect transistor.

[0008] In one embodiment, when the switch is in an on state, the first pull-up resistor and the second pull-up resistor are connected in parallel.

[0009] In one embodiment, when the switch is in the off state, the first pull-up resistor and the second pull-up resistor are not connected in parallel.

[0010] In one embodiment, the controller further has a ground terminal connected to a ground point.

[0011] In one embodiment, the controller is a microcontroller (MCU), a central processing unit (CPU), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other similar components.

[0012] In one embodiment, the light source driver includes a light source, a driving circuit, a power supply, a converter, a filter, and other related functional circuits.

[0013] In one embodiment, the light source is a light emitting diode, a fluorescent lamp or other similar components.

[0014] As described above, the lighting device with the anti-interference light control circuit according to the embodiments of the present invention may have one or more of the following advantages:

[0015] (1) In one embodiment of the present invention, a lighting device includes a pull-up resistor adjustment circuit, which is respectively connected to a controller, a first pull-up resistor, a photoresistor, and a detection current-limiting resistor. This circuit provides a unique pull-up resistor adjustment mechanism, enabling the light-controlled circuit including the photoresistor to have a pull-up resistor adjustment function. This effectively reduces interference caused by changes in external ambient light and prevents self-interference. The pull-up resistor adjustment mechanism can effectively prevent abnormal flickering or brightness reduction in the lighting device, thereby optimizing the efficiency of the lighting device.

[0016] (2) In one embodiment of the present invention, the lighting device includes a pull-up resistor adjustment circuit that provides a unique pull-up resistor adjustment mechanism. Furthermore, the controller may also provide a delay control mechanism. The combination of the aforementioned pull-up resistor adjustment mechanism and the delay control mechanism can effectively reduce interference caused by temporary, drastic changes in ambient light intensity. Consequently, the lighting device can achieve stable light output, further enhancing the lighting device's performance.

[0017] (3) In one embodiment of the present invention, the lighting device effectively integrates the aforementioned pull-up resistor adjustment mechanism and delay control mechanism, thereby effectively reducing interference caused by temporary and drastic changes in ambient light intensity. Consequently, the lighting device can achieve stable light output, significantly improving the lighting device's efficiency and thus better meeting the needs of practical applications.

[0018] (4) In one embodiment of the present invention, the pull-up resistor adjustment mechanism and delay control mechanism of the lighting device can be applied to various existing lighting devices with light control functions and can meet the needs of different environments. Therefore, it is more widely applicable and more flexible in use.

[0019] (5) In one embodiment of the present invention, the light control circuit of the lighting device can achieve the aforementioned pull-up resistor adjustment mechanism and delay control mechanism through a simple circuit design. Therefore, the desired effect can be achieved without significantly increasing costs, thereby significantly improving the market competitiveness of the lighting device. As a result, the lighting device can achieve extremely high commercial value. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A circuit diagram of a lighting device with an anti-interference light control circuit according to an embodiment of the present invention;

[0021] Figure 2 is a first schematic diagram of the operating state of a lighting device with an anti-interference light control circuit according to an embodiment of the present invention;

[0022] Figure 3 is a second schematic diagram illustrating the operating state of a lighting device having an anti-interference light control circuit according to an embodiment of the present invention;

[0023] Figure 4 is a third schematic diagram illustrating the operating state of a lighting device having an anti-interference light control circuit according to an embodiment of the present invention;

[0024] Figure 5 Flowchart of a control method of a lighting device with an anti-interference light control circuit according to an embodiment of the present invention.

[0025] Description of reference numerals:

[0026] 1-lighting device; CU-controller; C1-detection signal input terminal; C2-voltage input terminal; C3-drive signal output terminal; C4-control signal output terminal; C5-ground terminal; QR-photosensitive component; PC-pull-up resistor adjustment circuit; p1-first terminal of the pull-up resistor adjustment circuit; p2-second terminal of the pull-up resistor adjustment circuit; p3-third terminal of the pull-up resistor adjustment circuit; R1-detection current limiting resistor; R2-drive control current limiting resistor; R3-third pull-up resistor; R4-second pull-up resistor; R5-first pull-up resistor; Q1-switch; q1-first terminal of the switch; q2-second terminal of the switch; q3-third terminal of the switch; DR-light source driver; K1-light source; K2-drive circuit; N1-first node; N2-second node; Vcc-working voltage source; GND-ground point; As-control signal; Ds-drive signal; Ts-detection signal; S51~S55-step process.

[0027] The detailed features and advantages of the present invention are described in detail in the following embodiments, and the content is sufficient to enable anyone skilled in the relevant art to understand the technical content of the present invention and implement it accordingly. Moreover, based on the content, claims and drawings disclosed in this specification, anyone skilled in the relevant art can easily understand the purposes and advantages of this creation. DETAILED DESCRIPTION

[0028] The following describes embodiments of lighting devices with anti-interference light-control circuits according to the present invention with reference to the relevant drawings. For clarity and ease of illustration, the dimensions and proportions of the components in the drawings may be exaggerated or reduced. In the following description and / or claims, when a component is referred to as being "connected" or "coupled" to another component, it may be directly connected or coupled to the other component or with intervening components. When a component is referred to as being "directly connected" or "directly coupled" to another component, no intervening components are present. Other terms used to describe relationships between components or layers should be interpreted similarly. For ease of understanding, identical components in the following embodiments are labeled with the same reference numerals.

[0029] See also Figure 1 , which is a circuit diagram of a lighting device with an anti-interference light-control circuit according to one embodiment of the present invention. As shown, the lighting device 1 includes a photosensitive element QR, a first pull-up resistor R5, a light source driver DR, a detection current-limiting resistor R1, a controller CU, and a pull-up resistor adjustment circuit PC.

[0030] One end of the photosensitive element QR is connected to the first node N1, and the other end of the photosensitive element QR is connected to the ground point GND. In one embodiment, the photosensitive element QR can be a photoresistor, a photodiode or other similar components.

[0031] One end of the first pull-up resistor R5 is connected to the first node N1, and the other end of the first pull-up resistor R5 is connected to the second node N2. The second node N2 is connected to the operating voltage source Vcc.

[0032] The controller CU has a detection signal input terminal C1, a voltage input terminal C2, a drive signal output terminal C3, a control signal output terminal C4, and a ground terminal C5. In one embodiment, the controller is a microcontroller (MCU), a central processing unit (CPU), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other similar components. The detection signal input terminal C1 is connected to a first node N1 via a detection current-limiting resistor R1. The voltage input terminal C2 is connected to a second node N2. The drive signal output terminal C3 is connected to the light source driver DR.

[0033] A first terminal p1 of the pull-up resistor adjustment circuit PC is connected to a first node N1, a second terminal p2 of the pull-up resistor adjustment circuit PC is connected to a second node N2, and a third terminal p3 of the pull-up resistor adjustment circuit PC is connected to a control signal output terminal C4. A ground terminal C5 is connected to a ground point GND. The pull-up resistor adjustment circuit PC includes a second pull-up resistor R4, a third pull-up resistor R3, a drive control current limiting resistor R2, and a switch Q1. A first terminal q1 of the switch Q1 is connected to the first node N1 via the second pull-up resistor R4, a second terminal q2 of the switch Q1 is connected to the second node N2, and a third terminal q3 of the switch Q1 is connected to the control signal output terminal C4 and the second node N2 via the drive control current limiting resistor R2 and the third pull-up resistor R3, respectively. In one embodiment, the switch Q1 may be a transistor (BJT), a metal oxide semiconductor field effect transistor (MOS), or other similar components. In this embodiment, the switch Q1 can be a p-type metal oxide semiconductor field effect transistor (PMOS), the drain of the switch Q1 (first end q1) is connected to the first node N1 through the second pull-up resistor R4, the source of the switch Q1 (second end q2) is connected to the second node N2, and the gate of the switch Q1 (third end q3) is connected to the control signal output terminal C4 and the second node N2 through the driving control current limiting resistor R2 and the third pull-up resistor R3.

[0034] The light source driver DR includes a light source K1 and a drive circuit K2. Furthermore, the light source driver DR may include a power supply, a converter, a filter, and other related functional circuits. In this embodiment, the light source K1 is a light-emitting diode (LED); in another embodiment, the light source K1 may be a fluorescent lamp or other similar component. The circuit structure and function of the light source driver DR are well known to those skilled in the art and will not be described in detail here.

[0035] Of course, this embodiment is only used for illustration and does not limit the scope of the present invention. Equivalent modifications or changes made to the lighting device 1 with an anti-interference light control circuit according to this embodiment should still be included in the patent scope of the present invention.

[0036] See also Figure 2 , which is a first schematic diagram illustrating the operating state of a lighting device with an anti-interference light-control circuit according to an embodiment of the present invention. As shown in the figure, when lighting device 1 is in its default state, it does not need to emit light and is therefore in the off state. At this time, the drive circuit K2 of the light source driver DR does not drive the light source K1 (light source K1 does not emit light).

[0037] When the lighting device 1 is in its default state, the controller CU's drive signal output terminal C3 outputs a low-voltage drive signal Ds to the light source driver DR. The drive signal Ds is at a low voltage (below 1.5V). The controller CU's control signal output terminal C4 outputs a control signal As to the switch Q1. A high-voltage control signal As turns off the switch Q1. The first pull-up resistor R5 and the photosensor QR form a light-controlled detection circuit to detect ambient brightness.

[0038] When the ambient brightness is high, the photosensitive component QR receives sufficient light. At this point, the internal resistance of the photosensitive component QR decreases, but the internal resistance of the first pull-up resistor R5 remains unchanged. When the upper terminal potential (first node N1) of the photosensitive component QR reaches a low potential, the detection signal Ts received by the detection signal input terminal C1 of the controller CU is also low. Simultaneously, the drive signal output terminal C3 of the controller CU outputs a drive signal Ds to the light source driver DR, turning off the light source driver DR (the drive circuit K2 of the light source driver DR does not drive the light source K1, so the light source K1 does not emit light). Furthermore, the control signal output terminal C4 of the controller CU outputs a high-potential control signal As to the switch Q1, turning the switch Q1 off. When the switch Q1 is in the off state, the first pull-up resistor R5 and the second pull-up resistor R4 are not connected in parallel.

[0039] Of course, this embodiment is only used for illustration and does not limit the scope of the present invention. Equivalent modifications or changes made to the lighting device 1 with an anti-interference light control circuit according to this embodiment should still be included in the patent scope of the present invention.

[0040] See also Figure 3, which is a second schematic diagram of the operating state of a lighting device with an anti-interference light-control circuit according to an embodiment of the present invention. As shown in the figure, when the ambient brightness decreases, the internal resistance of the photosensitive element QR increases, while the internal resistance of the first pull-up resistor R5 remains unchanged. Therefore, the divided voltage of the photosensitive element QR gradually rises to a high level, causing the detection signal Ts received by the detection signal input terminal C1 of the controller CU to be high. At this time, the drive signal output terminal C3 of the controller CU outputs a high drive signal Ds to the light source driver DR, turning on the light source driver DR (the drive circuit K2 of the light source driver DR drives the light source K1, causing it to emit light). After the light source driver DR is turned on, the control signal output terminal C4 of the controller CU outputs a low control signal As to the switch Q1, turning on the switch Q1. When the switch Q1 is in the on state, the first pull-up resistor R5 and the second pull-up resistor R4 are connected in parallel, reducing the total pull-up resistance of the photosensitive element QR. Therefore, by properly adjusting the values of R4 / R5 , the upper terminal potential (first node N1 ) of the photosensitive element QR can be maintained at a high potential.

[0041] After the light source driver DR is turned on, the light emitted by the light source K1 will illuminate the photosensitive element QR, reducing the internal resistance of the photosensitive element QR. Therefore, without the pull-up resistor adjustment mechanism provided by the pull-up resistor adjustment circuit PC, the detection signal input terminal C1 of the controller CU will receive a low-voltage detection signal Ts (due to the reduced internal resistance of the photosensitive element QR), causing the drive signal output terminal C3 of the controller CU to output a low-voltage drive signal Ds, thereby turning off the light source driver DR. After the light source driver DR is turned off, the detection signal input terminal C1 of the controller CU will again receive a high-voltage detection signal Ts (due to the increased internal resistance of the photosensitive element QR), causing the drive signal output terminal C3 of the controller CU to again output a high-voltage drive signal Ds, thereby turning on the light source driver DR. Therefore, without the pull-up resistor adjustment mechanism provided by the pull-up resistor adjustment circuit PC, the lighting device 1 is prone to abnormal flickering or brightness reduction due to self-interference.

[0042] Of course, this embodiment is only used for illustration and does not limit the scope of the present invention. Equivalent modifications or changes made to the lighting device 1 with an anti-interference light control circuit according to this embodiment should still be included in the patent scope of the present invention.

[0043] See also Figure 4 , which is a third schematic diagram of the operating state of the lighting device with an anti-interference light control circuit according to an embodiment of the present invention, and please also refer to Figure 2 .like Figure 4As shown, as the ambient brightness continues to increase, the photosensitive element QR is simultaneously illuminated by the ambient light and the light emitted by the light source K1, and the internal resistance of the photosensitive element QR continues to decrease. When the internal resistance of the photosensitive element QR continues to decrease to a low level due to the parallel connection of the first pull-up resistor R5 and the second pull-up resistor R4, the detection signal input terminal C1 of the controller CU receives a low-level detection signal Ts (due to the reduced internal resistance of the photosensitive element QR), causing the drive signal output terminal C3 of the controller CU to output a low-level drive signal Ds, thereby turning off the light source driver DR.

[0044] like Figure 2 As shown, at the same time, the control signal output terminal C4 of the controller CU outputs a high potential control signal As to the switch Q1 to cut off the switch Q1; thus, the lighting device 1 returns to the Figure 2 At this point, the first pull-up resistor R5 and the second pull-up resistor R4 return from a parallel connection to a non-parallel connection, increasing the total pull-up resistance of the photosensitive element QR and further reducing the top-end potential (first node N1) of the photosensitive element QR. This mechanism effectively prevents the top-end potential (first node N1) of the photosensitive element QR from oscillating between high and low potentials, thereby preventing abnormal flickering or brightness reduction in the lighting device 1.

[0045] As mentioned above, the potential state of the driving signal Ds outputted by the driving signal output terminal C3 is the same as the potential state of the detection signal Ts received by the detection signal input terminal C1, but opposite to the potential state of the control signal As outputted by the control signal output terminal C4.

[0046] As can be seen from the above description, the lighting device 1 of this embodiment includes a pull-up resistor adjustment circuit PC, which is connected to the controller CU, the first pull-up resistor R5, the photoresistor QR, and the detection current-limiting resistor R1. This circuit PC provides a unique pull-up resistor adjustment mechanism, enabling the light-controlled circuit including the photoresistor QR to have a pull-up resistor adjustment function. This effectively reduces interference caused by changes in external ambient light and prevents self-interference. This pull-up resistor adjustment mechanism effectively prevents abnormal flickering or brightness drop in the lighting device 1, thereby optimizing the performance of the lighting device 1.

[0047] In addition, in order to effectively reduce the interference caused by temporary and drastic changes in ambient light intensity (such as car lights, flashlight lights, lightning, etc.), the controller CU can also provide a delay control mechanism. For example, when the light source driver DR is in the on state, the photosensitive component QR detects a temporary and drastic change in ambient light intensity, causing the upper end potential of the photosensitive component QR to change from a high potential to a low potential. At this time, the detection signal input terminal C1 of the controller CU will receive a low-potential detection signal Ts, but the drive signal output terminal C3 of the controller CU will not immediately output a low-potential drive signal Ds to the light source driver DR. In this case, the controller CU will detect the detection signal Ts of the detection signal input terminal C1 again after a preset delay time (such as 5 seconds, 10 seconds...). If after the preset delay time, the controller CU determines that the detection signal Ts of its detection signal input terminal C1 is still a low potential, the drive signal output terminal of the controller CU outputs a low-potential drive signal Ds to the light source driver DR to switch the light source driver DR. On the contrary, if the controller CU determines that the detection signal Ts of the detection signal input terminal C1 is at a high level after the preset delay time, the light source driver DR will continue to remain in the on state.

[0048] As can be seen from the above, the controller CU of this embodiment also provides a delay control mechanism. The combination of the aforementioned pull-up resistor adjustment mechanism and the delay control mechanism can effectively reduce interference caused by temporary and drastic changes in ambient light intensity. As a result, the lighting device 1 can achieve stable light output, further enhancing its performance.

[0049] Of course, this embodiment is only used for illustration and does not limit the scope of the present invention. Equivalent modifications or changes made to the lighting device 1 with an anti-interference light control circuit according to this embodiment should still be included in the patent scope of the present invention.

[0050] It's worth mentioning that existing light-control circuits in lighting devices still have many shortcomings that need improvement. For example, the light emitted by the light source cannot directly illuminate the photosensitive component, otherwise self-interference will occur, causing the light emitted by the light source to flicker abnormally or reduce the brightness of the light emitted by the light source. Furthermore, when multiple lighting devices are activated simultaneously, if the photosensitive component of one lighting device is illuminated by the light source of another lighting device, the aforementioned adverse effects will also occur, thereby affecting the application range of these lighting devices. In contrast, according to an embodiment of the present invention, the lighting device includes a pull-up resistor adjustment circuit, which is respectively connected to the controller, the first pull-up resistor, the photosensitive resistor, and the detection current-limiting resistor. This circuit provides a special pull-up resistor adjustment mechanism, which enables the light-control circuit including the photosensitive resistor to have a pull-up resistor adjustment function, effectively reducing interference caused by changes in external ambient light and preventing self-interference. The above-mentioned pull-up resistor adjustment mechanism can effectively prevent abnormal flickering or brightness reduction in the lighting device, thereby optimizing the efficiency of the lighting device.

[0051] Furthermore, according to an embodiment of the present invention, the lighting device includes a pull-up resistor adjustment circuit, which provides a unique pull-up resistor adjustment mechanism. Furthermore, the controller also provides a delay control mechanism. The combination of the aforementioned pull-up resistor adjustment and delay control mechanisms effectively reduces interference caused by temporary, drastic changes in ambient light intensity. Consequently, the lighting device can achieve stable light output, further enhancing its performance.

[0052] Furthermore, according to embodiments of the present invention, the lighting device effectively integrates the aforementioned pull-up resistor adjustment mechanism and delay control mechanism, thereby effectively reducing interference caused by temporary and drastic changes in ambient light intensity. Consequently, the lighting device can achieve stable light output, significantly improving its efficiency and making it more suitable for practical applications.

[0053] Furthermore, according to the embodiments of the present invention, the pull-up resistor adjustment mechanism and delay control mechanism of the lighting device can be applied to various existing lighting devices with light control functions and can meet the needs of different environments. Therefore, the application is wider and the use is more flexible.

[0054] Furthermore, according to embodiments of the present invention, the light-control circuit of a lighting device can implement the aforementioned pull-up resistor adjustment mechanism and delay control mechanism through a simple circuit design. Therefore, the desired functionality can be achieved without significantly increasing costs, significantly enhancing the lighting device's market competitiveness. Consequently, the lighting device can achieve extremely high commercial value. Furthermore, as can be seen from the foregoing, the lighting device with an anti-interference light-control circuit according to embodiments of the present invention can indeed achieve excellent technical effects.

[0055] See also Figure 5 , which is a flow chart of a method for controlling a lighting device with an anti-interference light control circuit according to an embodiment of the present invention. As shown in the figure, the method for controlling the lighting device 1 according to this embodiment may include the following steps:

[0056] Step S51: When the lighting device is in a default state, the low drive signal output terminal of the controller outputs a low potential drive signal to the light source driver, and the control signal output terminal of the controller outputs a high potential control signal to the switch of the pull-up resistor adjustment circuit.

[0057] Step S52: When the ambient brightness continues to increase and the upper end potential of the photosensitive component reaches a low potential, the detection signal received by the detection signal input end of the controller is a low potential, and the driving signal output end of the controller outputs a driving signal to the light source driver to turn off the light source driver.

[0058] Step S53: the control signal output terminal of the controller outputs a high-potential control signal to the switch of the pull-up resistor adjustment circuit, so that the switch of the pull-up resistor adjustment circuit is in a cut-off state.

[0059] Step S54: When the ambient brightness decreases, causing the internal resistance of the photosensitive component to increase and the voltage divider of the photosensitive component to gradually increase to a high potential, the detection signal received by the detection signal input end of the controller is a high potential, and the driving signal output end of the controller outputs a high potential driving signal to the light source driver to turn on the light source driver.

[0060] Step S55 : When the light source driver is turned on, the control signal output terminal of the controller outputs a low-voltage control signal to the switch of the pull-up resistor adjustment circuit, so that the switch of the pull-up resistor adjustment circuit is in a conducting state.

[0061] The control method of the lighting device 1 of this embodiment provides a unique pull-up resistor adjustment mechanism, enabling the light-controlled circuit including the photoresistor QR to have pull-up resistor adjustment capabilities. This effectively reduces interference caused by changes in ambient light and prevents self-interference. This pull-up resistor adjustment mechanism effectively prevents abnormal flickering or brightness drops in the lighting device 1, thereby optimizing the performance of the lighting device 1.

[0062] Furthermore, the aforementioned control method can further incorporate a delay control mechanism. The combination of the aforementioned pull-up resistor adjustment mechanism and the delay control mechanism can effectively reduce interference caused by temporary, drastic changes in ambient light intensity. Consequently, lighting device 1 can achieve stable light output, further enhancing its performance.

[0063] Of course, this embodiment is only used for illustration and does not limit the scope of the present invention. Equivalent modifications or changes made to the control method of the lighting device with the anti-interference light control circuit according to this embodiment should still be included in the patent scope of the present invention.

[0064] Although the steps of the method described in the present invention are shown and described in a particular order, the order of operation of each method can be changed, and some steps can be performed in a reverse order, or some steps can be performed simultaneously with other steps. In another embodiment, different steps can be implemented in an intermittent and / or alternating manner.

[0065] In summary, according to an embodiment of the present invention, a lighting device includes a pull-up resistor adjustment circuit, which is connected to the controller, the first pull-up resistor, the photoresistor, and the detection current-limiting resistor. This circuit provides a unique pull-up resistor adjustment mechanism, enabling the light-controlled circuit including the photoresistor to have a pull-up resistor adjustment function. This effectively reduces interference caused by changes in external ambient light and prevents self-interference. This pull-up resistor adjustment mechanism can effectively prevent abnormal flickering or brightness reduction in the lighting device, thereby optimizing the lighting device's performance.

[0066] Furthermore, according to an embodiment of the present invention, the lighting device includes a pull-up resistor adjustment circuit, which provides a unique pull-up resistor adjustment mechanism. Furthermore, the controller also provides a delay control mechanism. The combination of the aforementioned pull-up resistor adjustment and delay control mechanisms effectively reduces interference caused by temporary, drastic changes in ambient light intensity. Consequently, the lighting device can achieve stable light output, further enhancing its performance.

[0067] Furthermore, according to embodiments of the present invention, the lighting device effectively integrates the aforementioned pull-up resistor adjustment mechanism and delay control mechanism, thereby effectively reducing interference caused by temporary and drastic changes in ambient light intensity. Consequently, the lighting device can achieve stable light output, significantly improving its efficiency and making it more suitable for practical applications.

[0068] Furthermore, according to the embodiments of the present invention, the pull-up resistor adjustment mechanism and delay control mechanism of the lighting device can be applied to various existing lighting devices with light control functions and can meet the needs of different environments. Therefore, the application is wider and the use is more flexible.

[0069] Furthermore, according to embodiments of the present invention, the light control circuit of the lighting device can implement the aforementioned pull-up resistor adjustment mechanism and delay control mechanism through a simple circuit design. Therefore, the desired functionality can be achieved without significantly increasing costs, significantly enhancing the market competitiveness of the lighting device and thus achieving extremely high commercial value.

[0070] It should be noted that although the above embodiments have been described herein, this does not limit the scope of patent protection of the present invention. Therefore, based on the innovative concept of the present invention, changes and modifications to the embodiments described herein, or equivalent structural or equivalent process transformations made using the contents of the present invention's description and drawings, and direct or indirect application of the above technical solutions to other related technical fields are all included in the scope of protection of the present invention's patent.

Claims

1. A lighting device with an anti-interference light control circuit, characterized in that: Include: a photosensitive component, one end of which is connected to the first node, and the other end of which is connected to the ground point; a first pull-up resistor, one end of which is connected to the first node, and the other end of which is connected to a second node, wherein the second node is connected to an operating voltage source; Light source driver; Detection of current limiting resistor; a controller having a detection signal input terminal, a voltage input terminal, a drive signal output terminal, and a control signal output terminal, wherein the detection signal input terminal is connected to the first node through the detection current limiting resistor, the voltage input terminal is connected to the second node, and the drive signal output terminal is connected to the light source driver; as well as a pull-up resistor adjustment circuit, comprising a second pull-up resistor, a third pull-up resistor, a drive-controlled current-limiting resistor, and a switch, wherein a first end of the switch is connected to the first node through the second pull-up resistor, a second end of the switch is connected to the second node, and a third end of the switch is connected to the control signal output end through the drive-controlled current-limiting resistor and the third pull-up resistor, and is connected to the second node through the third pull-up resistor; When the ambient brightness increases and the upper end potential of the photosensitive component reaches a low potential, the detection signal received by the detection signal input end is a low potential, the drive signal output end outputs a low potential drive signal to the light source driver to turn off the light source driver, and the control signal output end outputs a high potential control signal to the switch to cut off the switch, and makes the first pull-up resistor and the second pull-up resistor not in a parallel state; when the ambient brightness decreases and the divided voltage of the photosensitive component increases to a high potential, the detection signal received by the detection signal input end is a high potential, the drive signal output end outputs a high potential drive signal to the light source driver to turn on the light source driver, and the control signal output end outputs a low potential control signal to the switch to turn on the switch, and makes the first pull-up resistor and the second pull-up resistor in a parallel state to reduce the total pull-up resistance of the photosensitive component, and the upper end potential of the photosensitive component is the potential of the first node.

2. The lighting device with an anti-interference light control circuit according to claim 1, wherein: The potential state of the driving signal is the same as the potential state of the detection signal and opposite to the potential state of the control signal.

3. The lighting device with an anti-interference light control circuit according to claim 1, wherein: The switch is a triode or a metal oxide semiconductor field effect transistor.

4. The lighting device with an anti-interference light control circuit according to claim 1, wherein: The controller further has a ground terminal connected to the ground point.

5. The lighting device with an anti-interference light control circuit according to claim 1, wherein: The controller is a microcontroller, a central processing unit, a dedicated integrated circuit chip or a field programmable logic gate array.

6. The lighting device with an anti-interference light control circuit according to claim 1, wherein: The light source driver includes a light source and a driving circuit.

7. The lighting device with an anti-interference light control circuit according to claim 6, characterized in that: The light source is a light emitting diode.

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