A thyristor dial dual dimming drive circuit, dimming drive device and lamp

Abstract

The present application provides a thyristor dial dual dimming drive circuit, a dimming drive device and a lamp, which uses a thyristor dimmer to set a corresponding conduction angle to adjust the alternating current, selects the dimming and color adjustment gear through the dial switch module to output the corresponding dimming control signal and color adjustment control signal, and the driving and adjusting module adjusts the direct current output by the rectifier module according to the dimming control signal and the current output by the light source component. The control module generates a first pulse width modulation signal according to the color adjustment control signal and sends it to the color temperature control module to adjust the switching duty cycle of the color temperature control module to adjust the current output by the light source component, and generates a second pulse width modulation signal according to the conduction angle of the thyristor dimmer and sends it to the driving and adjusting module to adjust the direct current, thereby realizing the simultaneous adjustment of brightness and color temperature in different application scenarios, giving users an experience of dual dimming curves and different color temperatures.

Description

Technical Field

[0001] The present application belongs to the technical field of lamps, and in particular relates to a thyristor dial dual dimming drive circuit, a dimming drive device and a lamp. Background Art

[0002] LED lamps have the advantages of small size, high efficiency and large current, and are widely used in lighting and backlighting. In lighting systems, how to dim various light sources is a very challenging task. Dimming technology allows users to adjust the brightness of light sources according to actual needs. In application scenarios that do not require strong light, dimming technology can be used to dim the brightness of the light source, thereby reducing power consumption and saving energy.

[0003] However, the controllable dimming lamps currently available on the market can only achieve one dimming curve, which provides a single customer experience and cannot simultaneously meet the brightness and color temperature requirements of different application scenarios. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a thyristor-controlled dual-dimming driving circuit, a dimming driving device and a lamp to solve the technical problem in the prior art that it is impossible to simultaneously meet the requirements of brightness and color temperature in different application scenarios.

[0005] To achieve the above purpose, the technical solution adopted by the present application is: to provide a thyristor dial dual dimming driving circuit connected to the light source assembly, the thyristor dial dual dimming driving circuit comprising:

[0006] The thyristor dimmer is used to connect to the alternating current and set the corresponding conduction angle according to the thyristor control signal;

[0007] A rectifier module, connected to the thyristor dimmer, for rectifying the voltage signal output by the thyristor dimmer to generate direct current;

[0008] A DIP switch module, used for selecting a dimming and color adjustment gear, and outputting a color adjustment control signal and a dimming control signal according to the dimming and color adjustment gear;

[0009] A driving and regulating module, connected to the rectifier module, the DIP switch module and the light source assembly, for receiving the dimming control signal and collecting the current output by the light source assembly, and regulating the direct current according to the dimming control signal and the collection result;

[0010] A color temperature control module, connected to the light source assembly, for adjusting the current of each light-emitting unit in the light source assembly according to different switch duty ratios;

[0011] a thyristor detection module, connected to the rectifier module, for detecting a conduction angle of the thyristor dimmer according to the direct current, and generating a thyristor conduction angle signal; and

[0012] A control module is connected to the dip switch module, the drive adjustment module, the color temperature control module and the thyristor detection module, and is used to generate a first pulse width modulation signal according to the color adjustment control signal and send it to the color temperature control module to adjust the switch duty cycle of the color temperature control module, and generate a second pulse width modulation signal according to the thyristor conduction angle signal and send it to the drive adjustment module to adjust the direct current.

[0013] In one embodiment, the thyristor dial dual dimming driving circuit further includes:

[0014] The filter module is connected to the rectifier module and the drive adjustment module respectively, and is used for filtering the direct current output by the rectifier module and outputting the filtered direct current voltage to the drive adjustment module.

[0015] In one embodiment, the thyristor dial dual dimming driving circuit further includes:

[0016] An overcurrent protection module is connected to the rectifier module and is used to perform overcurrent protection on the alternating current.

[0017] In one embodiment, the thyristor dial dual dimming driving circuit further includes:

[0018] The ripple removal module is connected to the driving adjustment module and the light source assembly respectively, and is used to remove the ripple in the direct current.

[0019] In one embodiment, the thyristor dial dual dimming driving circuit further includes:

[0020] The power supply module is connected to the rectifier module and the control module respectively, and is used for receiving the direct current and performing voltage conversion on the direct current to supply power to the control module.

[0021] In one embodiment, the dip switch module includes: a multi-speed switching switch, multiple color adjustment resistors and at least one dimming resistor; wherein the common end of the multi-speed switching switch is grounded, and the multiple switching contacts of the multi-speed switching switch are respectively connected to the first ends of the multiple color adjustment resistors and the first end of the at least one dimming resistor in a one-to-one correspondence, the second ends of the multiple color adjustment resistors are commonly connected to the control module, and the second end of the at least one dimming resistor is connected to the drive adjustment module.

[0022] In one embodiment, the color temperature control module includes:

[0023] an optical coupling unit, connected to the control module, and configured to receive the first pulse width modulation signal and perform optical coupling isolation processing on the first pulse width modulation signal;

[0024] The switch unit is connected to the optical coupling unit and the light source assembly, and is used for switching according to the first pulse width modulation signal after the optical coupling isolation process, so as to adjust the current of each light-emitting unit in the light source assembly.

[0025] In one embodiment, the switching unit includes: a switching tube, a voltage-regulating tube, a first voltage-dividing resistor and a second voltage-dividing resistor. The first end of the switching tube and the cathode of the voltage-regulating tube are commonly connected to an output end of the light source component, the first end of the first voltage-dividing resistor is connected to the input end of the light source component, the second end of the first voltage-dividing resistor, the first end of the second voltage-dividing resistor and the control end of the switching tube are commonly connected to a switching signal output end of the control module, and the second end of the switching tube, the anode of the voltage-regulating tube and the second end of the second voltage-dividing resistor are commonly connected to ground.

[0026] The embodiment of the present application further provides a dimming driving device, comprising a thyristor dial dual dimming driving circuit as described in any one of the above items.

[0027] The embodiment of the present application further provides a lamp, comprising: a light source assembly; and a thyristor-dimming dual-dimming driving circuit as described in any one of the above items, wherein the thyristor-dimming dual-dimming driving circuit is connected to the light source assembly.

[0028] The beneficial effect of the lamp provided by the present application is that: compared with the prior art, a thyristor dimmer is used to set a corresponding conduction angle to adjust the alternating current, and the dimming and color adjustment gear is selected by the dip switch module to output the corresponding dimming control signal and color adjustment control signal, the driving and adjusting module adjusts the direct current output by the rectifier module according to the dimming control signal and the current output by the light source assembly, the control module generates a first pulse width modulation signal according to the color adjustment control signal and sends it to the color temperature control module to adjust the switching duty cycle of the color temperature control module to adjust the current output by the light source assembly, and generates a second pulse width modulation signal according to the conduction angle of the thyristor dimmer and sends it to the driving and adjusting module to adjust the direct current, thereby realizing the simultaneous adjustment of brightness and color temperature in different application scenarios, giving users an experience of dual dimming curves and different color temperatures. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0030] Figure 1 A circuit structure diagram of a thyristor dial dual dimming drive circuit provided in an embodiment of the present application;

[0031] Figure 2 A circuit structure diagram of another thyristor dial dual dimming drive circuit provided in an embodiment of the present application;

[0032] Figure 3 A circuit structure diagram of another thyristor dial dual dimming drive circuit provided in an embodiment of the present application;

[0033] Figure 4 A circuit structure diagram of another thyristor dial dual dimming drive circuit provided in an embodiment of the present application;

[0034] Figure 5 A circuit structure diagram of another thyristor dial dual dimming drive circuit provided in an embodiment of the present application;

[0035] Figure 6 A circuit structure diagram of a thyristor dial dual dimming drive circuit provided in an embodiment of the present application;

[0036] Figure 7 A circuit structure diagram of a power supply module provided in an embodiment of the present application;

[0037] Figure 8 A circuit structure diagram of a control module provided in an embodiment of the present application;

[0038] Fig. 9 This is a circuit structure diagram of the DIP switch module provided in an embodiment of the present application. DETAILED DESCRIPTION

[0039] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0040] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0041] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] The present application embodiment provides a thyristor dial dual dimming driving circuit, see Figure 1 As shown, the thyristor dial dual dimming driving circuit is connected to the light source component 00. Specifically, the thyristor dial dual dimming driving circuit includes: a thyristor dimmer 10, a rectifier module 20, a dial switch module 30, a drive adjustment module 40, a color temperature control module 50, a thyristor detection module 60, and a control module 70. The thyristor dimmer 10 is used to access alternating current and set the corresponding conduction angle according to the thyristor control signal. The rectifier module 20 is connected to the thyristor dimmer 10 to rectify the voltage signal output by the thyristor dimmer 10 to generate direct current; the dial switch module 30 is used to select the dimming and color adjustment gear, and output the color adjustment control signal and the dimming control signal according to the dimming and color adjustment gear; the drive adjustment module 40 is connected to the rectifier module 20, the dial switch module 30 and the light source component 00 to receive the dimming control signal and collect light The current output by the source component 00 adjusts the direct current according to the dimming control signal and the collection result; the color temperature control module 50 is connected to the light source component 00, and is used to adjust the current of each light-emitting unit in the light source component 00 according to different switching duty cycles; the thyristor detection module 60 is connected to the rectifier module 20, and is used to detect the conduction angle of the thyristor dimmer 10 according to the direct current, and generate a thyristor conduction angle signal; and the control module 70 is connected to the dip switch module 30, the drive adjustment module 40, the color temperature control module 50 and the thyristor detection module 60, and is used to generate a first pulse width modulation signal according to the color adjustment control signal and send it to the color temperature control module 50 to adjust the switching duty cycle of the color temperature control module 50, and generate a second pulse width modulation signal according to the thyristor conduction angle signal and send it to the drive adjustment module 40 to adjust the direct current.

[0044] In this embodiment, a thyristor dimmer 10 is used to set a corresponding conduction angle to adjust the alternating current, and a dimming control signal and a color adjustment control signal are outputted through a dial switch module 30 to select a dimming and color adjustment gear, wherein the dimming control signal is used to set the dimming stroke of the driving and adjusting module 40, and the color adjustment control signal is used to set the color temperature of the light source component 00. Specifically, the driving and adjusting module 40 adjusts the direct current output by the rectifier module 20 according to the dimming control signal and the current output by the light source component 00 to realize dimming control of the light source component 00, and the control module 70 generates a first pulse width modulation signal according to the color adjustment control signal and sends it to the color temperature control module 50 to adjust the color. The switching duty cycle of the temperature control module 50 is adjusted, thereby adjusting the current output by each light-emitting unit in the light source assembly 00 to achieve color temperature control of the light source assembly 00. The thyristor detection module 60 is used to detect the dimming angle of the thyristor dimmer 10, convert the analog signal into a digital signal, and generate a thyristor conduction angle signal according to the conduction angle of the thyristor dimmer 10. The control module 70 generates a second pulse width modulation signal according to the conduction angle of the thyristor dimmer 10 and sends it to the drive adjustment module 40 to adjust the direct current, thereby achieving simultaneous adjustment of brightness and color temperature in different application scenarios, giving users an experience of dual dimming curves and different color temperatures.

[0045] In one embodiment, the dip switch module 30 can output multiple color adjustment control signals for providing a color temperature switching signal to the control module 70. The dip switch module 30 can also output at least one dimming control signal. The control module 70 switches the dimming curve based on the dimming control signal to switch the dimming curve, thereby realizing two dimming curves. For example, when the dimming stroke of the thyristor dimmer 10 changes in the range of 0%-100%, the output current of the control drive adjustment module 40 changes corresponding to 0%-100%. When the dimming stroke of the thyristor dimmer 10 changes in the range of 0%-50%, the output current changes corresponding to 0%-100%. When the dimming stroke of the thyristor dimmer 10 is 50%-100%, the output current remains 100% constant.

[0046] In one embodiment, see Figure 2 As shown, the thyristor dial dual dimming drive circuit also includes a filter module 81, which is respectively connected to the rectifier module 20 and the drive adjustment module 40, for filtering the DC power output by the rectifier module 20 and outputting the filtered DC voltage to the drive adjustment module 40.

[0047] In this embodiment, the direct current output by the rectifier module 20 is filtered by the filter module 81 to eliminate spikes and other noise in the direct current.

[0048] In one embodiment, see Figure 3 As shown, the thyristor dial dual dimming driving circuit also includes an overcurrent protection module 82, which is connected to the rectifier module 20 for overcurrent protection of the alternating current.

[0049] In this embodiment, an overcurrent protection module 82 is provided before the rectifier module 20 to provide overcurrent protection for the subsequent circuit, thereby preventing the subsequent circuit from being damaged by excessive current of the alternating current.

[0050] In one embodiment, see Figure 4 As shown, the thyristor dial dual dimming driving circuit also includes a ripple removal module 83, which is connected to the driving adjustment module 40 and the light source assembly 00 respectively, and is used to remove ripples in the direct current.

[0051] In this embodiment, a ripple removal module 83 is provided between the driving adjustment module 40 and the light source assembly 00 to remove ripples in the direct current and avoid flickering when the light source assembly 00 is turned on.

[0052] In one embodiment, see Figure 5 As shown, the thyristor dial dual dimming driving circuit also includes a power supply module 84, which is connected to the rectifier module 20 and the control module 70 respectively, for receiving direct current and performing voltage conversion on the direct current to supply power to the control module 70.

[0053] In this embodiment, the power supply module 84 draws power from the rectifier module 20 and converts the rectified DC power into voltage to power the control module 70. Furthermore, the power supply module 84 can also output multiple different voltages to power other functional modules in the thyristor dual dimming drive circuit.

[0054] In one embodiment, see Figure 6 As shown, the color temperature control module 50 includes an optical coupling unit 51 and a switch unit 52, wherein the optical coupling unit 51 is connected to the control module 70, and is used for receiving a first pulse width modulation signal and performing optical coupling isolation processing on the first pulse width modulation signal; the switch unit 52 is connected to the optical coupling unit 51 and the light source component 00, and is used for performing switch switching according to the first pulse width modulation signal after the optical coupling isolation processing, so as to adjust the current of each light-emitting unit in the light source component 00.

[0055] In this embodiment, the optical coupling unit 51 can perform optical coupling isolation processing on the first pulse width modulation signal output by the control module 70, and enhance the anti-interference ability during the color temperature adjustment process by setting insulation between the input and output and setting unidirectional transmission.

[0056] In one embodiment, see Figure 6As shown, the drive adjustment module 40 includes: a first inductor L1, a first diode D1, a constant current drive chip U1, 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, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirty-first resistor R31, a first voltage regulator tube Z1, a first capacitor C1, a second capacitor C2, a third capacitor C3, a first switch tube Q1 and a fourth capacitor C4; wherein the first end of the first inductor L1 is connected to the filter module 81, the second end of the first inductor L1, the anode of the first diode D1 and the constant current drive The switching pin SW of the chip U1 is connected in common, the voltage feedback signal pin FB of the constant current driving chip U1, the cathode of the first voltage regulator Z1, the first end of the first capacitor C1 and the first end of the thirty-first resistor R31 are connected in common to form the voltage feedback signal input terminal FB of the driving adjustment module 40, the anode of the first voltage regulator Z1 is connected to the first end of the first resistor R1, the second end of the first resistor R1, the second end of the first capacitor C1 and the first end of the third capacitor C3 are connected in common to the error amplifier output pin EA of the constant current driving chip U1, the second end of the thirty-first resistor R31 and the first end of the second capacitor C2 are connected in common to the power supply pin VCC of the constant current driving chip U1, and the current setting pin VCC of the constant current driving chip U1 is connected in common to the power supply pin VCC of the constant current driving chip U1. The set pin SET, the first end of the fourth resistor R4 and the first end of the ninth resistor R9 are connected together, the overvoltage protection pin OVP of the constant current driver chip U1, the first end of the third resistor R3 and the first end of the tenth resistor R10 are connected together, the second end of the tenth resistor R10, the first end of the seventh resistor R7 and the first end of the first switch tube Q1 are connected together, the control end of the first switch tube Q1 and the first end of the eighth resistor R8 are connected to the second pulse width modulation signal output end G2 of the control module 70, the CS pin of the constant current driver chip U1, the first end of the eleventh resistor R11 and the first end of the twelfth resistor R12 are connected to the dimming control signal end CS of the dip switch module 30, and the constant current driver chip U1 The ground pin GND, the second end of the eleventh resistor R11, the second end of the twelfth resistor R12, the second end of the third capacitor C3, the second end of the second capacitor C2, the second end of the fourth resistor R4, the second end of the ninth resistor R9, the second end of the eighth resistor R8, the second end of the seventh resistor R7, the first end of the fourth capacitor C4, and the first end of the sixth resistor R6 are connected to the ground, the second end of the sixth resistor R6 is connected to the first end of the fifth resistor R5, the second end of the third resistor R3 is connected to the first end of the second resistor R2, the second end of the second resistor R2, the cathode of the first diode D1, the second end of the fourth capacitor C4, and the second end of the fifth resistor R5 are connected to the ripple removal module 83.

[0057] In this embodiment, the constant current driver chip U1 and its peripheral circuits constitute a main circuit to provide a constant operating current for the light source component 00. The CS pin of the constant current driver chip U1 is connected to the dimming control signal terminal CS of the dip switch module 30. The dimming control signal output by the dip switch module 30 is received through the CS pin to set the corresponding dimming curve, and the voltage feedback signal is received through the voltage feedback signal pin FB to adjust the current of the DC power.

[0058] In one embodiment, see Figure 6 As shown, the filtering module 81 includes: a second diode D2, a second inductor L2, a thirteenth resistor R13, a fifth capacitor C5, a sixth capacitor C6, a seventh capacitor C7 and a fourteenth resistor R14, wherein the anode of the second diode D2 is connected to the rectifier module 20, the cathode of the second diode D2, the first end of the second inductor L2, the first end of the thirteenth resistor R13 and the first end of the fifth capacitor C5 are connected in common, the second end of the second inductor L2, the second end of the thirteenth resistor R13, the first end of the sixth capacitor C6 and the first end of the seventh capacitor C7 are connected in common to the driving adjustment module 40, the second end of the sixth capacitor C6 is connected to the first end of the fourteenth resistor R14, the second end of the fifth capacitor C5, the second end of the fourteenth resistor R14 and the second end of the seventh capacitor C7 are connected in common to the ground.

[0059] In this embodiment, the second diode D2, the second inductor L2, the thirteenth resistor R13, the fifth capacitor C5, the sixth capacitor C6, the seventh capacitor C7, the thirteenth resistor R13 and the fourteenth resistor R14 form a filter circuit to filter the DC power output by the rectifier module 20.

[0060] In one embodiment, see Figure 6 As shown, the rectifier module 20 may include a rectifier bridge BD, wherein a first input end of the rectifier bridge BD is connected to the live wire L through an overcurrent protection module 82, a second input end of the rectifier bridge BD is connected to the neutral wire N, a first output end of the rectifier bridge BD is connected to the filter module 81, and a second output end of the rectifier bridge BD is grounded.

[0061] In one embodiment, see Figure 6As shown, the thyristor detection module 60 includes: a fifteenth resistor R15, a sixteenth resistor R16, a second switch tube Q2, a second voltage regulator tube Z2, an eighth capacitor C8, and a thirty-second resistor R32, wherein a first end of the thirty-second resistor R32 is connected to the rectifier module 20, a second end of the thirty-second resistor R32, a first end of the fifteenth resistor R15, a first end of the eighth capacitor C8, a cathode of the second voltage regulator tube Z2, and a control end of the second switch tube Q2 are connected in common, an anode of the second voltage regulator tube Z2, a second end of the eighth capacitor C8, and a second end of the fifteenth resistor R15 are connected in common to the ground, a first end of the second switch tube Q2 and a first end of the sixteenth resistor R16 are connected in common to the thyristor conduction angle signal input end of the control module 70, a second end of the second switch tube Q2 is grounded, and a second end of the sixteenth resistor R16 is connected to the power supply end.

[0062] In this embodiment, the fifteenth resistor R15, the sixteenth resistor R16, the second switch tube Q2, the second voltage regulator tube Z2, the eighth capacitor C8, and the thirty-second resistor R32 form a thyristor conduction angle detection circuit, and convert the analog signal into a corresponding digital signal and send it to the control module 70. The control module 70 performs logical operations based on the received thyristor conduction angle signal and the dimming control signal output by the dip switch module 30 to adjust the current of the DC power.

[0063] In one embodiment, the second switch tube Q2 is an N-type MOS tube.

[0064] In one embodiment, see Figure 6 As shown, the overcurrent protection module 82 includes a first fuse FR1 and a second fuse FR2, the first fuse FR1 and the second fuse FR2 are connected in series, wherein the first end of the first fuse FR1 is connected to the live wire, the second end of the first fuse FR1 is connected to the first end of the second fuse FR2, and the second end of the second fuse FR2 is connected to the filtering module 81.

[0065] In this embodiment, the first fuse FR1 and the second fuse FR2 are connected in series to form an overcurrent protection circuit to provide double overcurrent protection for the input AC power. If either of the first fuse FR1 and the second fuse FR2 blows due to overcurrent, the subsequent circuit can be protected.

[0066] In one embodiment, see Figure 6As shown, the ripple removal module 83 includes: a third switch tube Q3, a third voltage regulator tube Z3 and a ninth capacitor C9, wherein the cathode of the third voltage regulator tube Z3 and the first end of the third switch tube Q3 are connected to the drive adjustment module 40, the anode of the third voltage regulator tube Z3, the control end of the third switch tube Q3 and the first end of the ninth capacitor C9 are connected in common, and the second end of the third switch tube Q3 and the second end of the ninth capacitor C9 are connected in common to the positive terminal LED+ of the light source component 00.

[0067] In one embodiment, the third switch tube Q3 may be an N-type MOS tube.

[0068] In one embodiment, the switching unit 52 includes: a switching tube, a voltage-regulating tube, a first voltage-dividing resistor and a second voltage-dividing resistor. The first end of the switching tube and the cathode of the voltage-regulating tube are connected to an output end of the light source component 00, the first end of the first voltage-dividing resistor is connected to the input end of the light source component 00, the second end of the first voltage-dividing resistor, the first end of the second voltage-dividing resistor and the control end of the switching tube are connected to a switching signal output end of the control module 70, and the second end of the switching tube, the anode of the voltage-regulating tube and the second end of the second voltage-dividing resistor are connected to the ground.

[0069] In this embodiment, the first voltage-dividing resistor and the second voltage-dividing resistor form a voltage-dividing circuit, which performs voltage-dividing processing on the input voltage signal, and then sends the voltage-dividing signal to the control end of the switch tube to switch the switch tube on and off, wherein the first end of the switch tube is connected to a negative terminal in the light source component 00, and the multiple light-emitting units of the light source component 00 are connected to the negative terminal one by one.

[0070] In one embodiment, see Figure 6 As shown, the optocoupler unit 51 includes: an optocoupler chip U2, a fourth voltage regulator tube Z4, and a twenty-first resistor R21, wherein the first end of the twenty-first resistor R21 is connected to the first pulse width modulation signal output terminal G1 of the control module 70, the second end of the twenty-first resistor R21 is connected to the first input pin of the optocoupler chip U2, the second input pin of the optocoupler chip U2 is grounded, the first output end of the optocoupler chip U2 and the cathode of the fourth voltage regulator tube Z4 are connected to the switch unit 52, and the second output end of the optocoupler chip U2 and the anode of the fourth voltage regulator tube Z4 are connected to the common ground terminal PGND.

[0071] In one embodiment, see Figure 6As shown, the switch unit 52 includes: a fourth switch tube Q4, a fifth switch tube Q5, a third diode D3, a fourth diode D4, a fifth diode D5, an eighteenth resistor R18, a nineteenth resistor R19, a twentieth resistor R20, and a seventeenth resistor R17, wherein a first end of the seventeenth resistor R17 is connected to the positive terminal LED+ of the light source assembly 00, a second end of the seventeenth resistor R17, a control end of the fourth switch tube Q4, a cathode of the fourth diode D4, and a first end of the eighteenth resistor R18 are commonly connected to the optical coupling unit 51, and a first end of the fourth switch tube Q4 and a cathode of the third diode D3 are commonly connected to the optical coupling unit 51. The first negative terminal LED1- of the source component 00, the anode of the third diode D3, the control end of the fifth switch tube Q5, the cathode of the fifth diode D5, the first end of the nineteenth resistor R19 and the first end of the twentieth resistor R20 are connected together, the first end of the fifth switch tube Q5 and the second negative terminal LED2- of the light source component 00, the second end of the eighteenth resistor R18, the anode of the fourth diode D4, the anode of the fifth diode D5, the second end of the nineteenth resistor R19 and the second end of the fifth switch tube Q5 and the common ground terminal PGND are connected to the voltage feedback signal input terminal FB of the driving adjustment module 40.

[0072] In one embodiment, the common ground terminal PGND may be grounded via a resistor.

[0073] In one embodiment, see Figure 7 As shown, the power supply module 84 includes: a sixth diode D6, a tenth capacitor C10, an eleventh capacitor C11, a third inductor L3, a twelfth capacitor C12, a twenty-first resistor R21 and a power supply chip U3, wherein the anode of the sixth diode D6 is connected to the output terminal VBUS of the rectifier module 20, the internal high-power tube drain pin DR of the power supply chip U3, the cathode of the sixth diode D6 and the first end of the tenth capacitor C10 are connected in common, the chip ground pin PG of the power supply chip U3, the first end of the eleventh capacitor C11 and the first end of the third inductor L3 are connected in common, the output voltage selection pin SEL and the power supply pin VCC of the power supply chip U3 are connected in common to the second end of the eleventh capacitor C11, the output pin OUT of the power supply chip U3, the second end of the third inductor L3, the first end of the twenty-first resistor R21 and the first end of the twelfth capacitor C12 are connected in common to form the power supply terminal VCC, and the second end of the tenth capacitor C10, the second end of the twenty-first resistor R21 and the second end of the twelfth capacitor C12 are grounded.

[0074] In this embodiment, the power supply chip U3 and its peripheral circuits form a voltage conversion circuit, which converts direct current into at least one voltage to power the control module 70 or other functional modules.

[0075] In one embodiment, see Figure 8As shown, the control module 70 includes: a main control chip U4, a thirteenth capacitor C13 and a twenty-second resistor R22, wherein the ADC pin of the main control chip U4, the first end of the thirteenth capacitor C13 and the first end of the twenty-second resistor R22 are commonly connected to the color adjustment control signal output terminal TS2 of the dial switch module 30, the second end of the thirteenth capacitor C13 is grounded, the power pin of the main control chip U4 and the second end of the twenty-second resistor R22 are commonly connected to the power supply terminal VCC, the first pulse width modulation signal output terminal of the main control chip U4 constitutes the first pulse width modulation signal output terminal G1 of the control module 70, the second pulse width modulation signal output terminal of the main control chip U4 constitutes the second pulse width modulation signal output terminal G2 of the control module 70, and the thyristor conduction angle signal input terminal of the main control chip U4 constitutes the thyristor conduction angle signal input terminal TS1 of the control module 70.

[0076] In one embodiment, the dip switch module 30 includes: a multi-speed switching switch, multiple color adjustment resistors and at least one dimming resistor; wherein the common end of the multi-speed switching switch is grounded, and the multiple switching contacts of the multi-speed switching switch are respectively connected one-to-one with the first ends of the multiple color adjustment resistors and the first end of the at least one dimming resistor, the second ends of the multiple color adjustment resistors are commonly connected to the control module 70, and the second end of the at least one dimming resistor is connected to the drive adjustment module 40.

[0077] In one embodiment, participating Fig. 9 As shown, the dip switch module 30 includes: a multi-speed switching switch SW, a twenty-third resistor R23, a twenty-fourth resistor R24, a twenty-fifth resistor R25, a twenty-sixth resistor R26, a twenty-seventh resistor R27 and a twenty-eighth resistor R28, wherein the first ends of the twenty-third resistor R23, the twenty-fourth resistor R24, the twenty-fifth resistor R25, the twenty-sixth resistor R26 and the twenty-seventh resistor R27 are commonly connected to the color adjustment control signal input terminal TS2 of the control module 70, the second ends of the twenty-third resistor R23, the twenty-fourth resistor R24, the twenty-fifth resistor R25, the twenty-sixth resistor R26 and the twenty-seventh resistor R27 are respectively connected to the first switching contact, the second switching contact, the third switching contact, the fourth switching contact and the fifth switching contact of the multi-speed switching switch SW in a one-to-one correspondence, the sixth switching contact of the multi-speed switching switch SW is connected to the first end of the twenty-eighth resistor R28, and the second end of the twenty-eighth resistor R28 is connected to the dimming control signal input terminal CS of the driving adjustment module 40.

[0078] In this embodiment, when the multi-gear switch SW is in the first five gears, that is, when the multi-gear switch SW switches between the first switching contact, the second switching contact, the third switching contact, the fourth switching contact, and the fifth switching contact, the ADC pin of the main control chip U4 detects different voltage values ​​corresponding to the five-gear signals of the multi-gear switch SW through the TS2 port, that is, VTS2 =5V*Rx / (Rx+R22), Rx is the resistance value of the resistor connected to the switch among the twenty-third resistor R23, the twenty-fourth resistor R24, the twenty-fifth resistor R25, the twenty-sixth resistor R26, and the twenty-seventh resistor R27, R22 is the resistance value of the twenty-second resistor R22, V TS2 is the voltage of the color adjustment control signal. When the code switch is set to different Rx values, the main control chip U4 will obtain different voltage values ​​through TS2, and output different first pulse width modulation signals to port G1 according to calling different internal programs, so that different color temperature results of the whole lamp can be obtained by controlling the duty cycle of multiple light-emitting units in the light source component 00. At this time, the thyristor angle detection signal TS1 will not participate in the judgment logic processing output of the main control chip U4.

[0079] When the DIP switch module 30 performs five-speed color adjustment control, the twenty-eighth resistor R28 is suspended and not grounded, and the peak limiting current of the drive = 0.3V / (R11 / / R12), where R11 / / R12 is the resistance value of the eleventh resistor R11 and the twelfth resistor R12 in parallel. At this time, the output current will change from 0%-100% accordingly as the dimming stroke of the thyristor changes. During the five-speed color adjustment control, the signal detected by TS1 will not participate in the logic output of the main control chip U4, and the main control chip U4 ignores the information changes obtained by the TS1 port.

[0080] When the DIP switch module 30 is switched to the sixth gear, that is, the twenty-eighth resistor R28 is connected to the multi-gear switch SW, the twenty-eighth resistor R28 is connected in parallel with the eleventh resistor R11 and the twelfth resistor R12, V TS2 =5V, the main control chip U4 starts to detect the duty cycle of TS1 at the same time. The change of the thyristor dimming angle will change the duty cycle of TS1, thereby converting the analog signal into a digital signal and transmitting it to the main control chip U4 for detection. When the stroke of the thyristor controller changes from 0% to 50%, at this time, since the twenty-eighth resistor R28 is connected to the CS pin, the peak limiting current of the drive is increased to 0.3 / (R11 / / R12 / / R28), R11 / / R12 / / R28 is the resistance value of the eleventh resistor R11, the twelfth resistor R12 and the twenty-eighth resistor R28 in parallel, the output current will be output from 0% to 100% accordingly, and at the same time, the port G1 synchronously outputs the PWM signal corresponding to the duty cycle change of 100%-50%, and dimming and color adjustment are realized at this stage. When the stroke of the thyristor controller changes from 50% to 100%, due to the connection of the twenty-eighth resistor R28, the output current no longer changes, and the port G1 simultaneously outputs a PWM signal corresponding to a duty cycle change of 50% to 0%. In this stage, only color adjustment is achieved without dimming.

[0081] In one embodiment, the multi-speed switching switch SW may be a dip switch.

[0082] The embodiment of the present application further provides a dimming driving device, comprising any one of the thyristor dial dual dimming driving circuits described above.

[0083] The embodiment of the present application further provides a lamp, comprising: a light source assembly 00 ; and a thyristor-dimming dual-dimming driving circuit as described above, wherein the thyristor-dimming dual-dimming driving circuit is connected to the light source assembly 00 .

[0084] The beneficial effect of the lamp provided by the present application is that: compared with the prior art, a thyristor dimmer is used to set a corresponding conduction angle to adjust the alternating current, and the dimming and color adjustment gear is selected by the dip switch module to output the corresponding dimming control signal and color adjustment control signal, the driving and adjusting module adjusts the direct current output by the rectifier module according to the dimming control signal and the current output by the light source assembly, the control module generates a first pulse width modulation signal according to the color adjustment control signal and sends it to the color temperature control module to adjust the switching duty cycle of the color temperature control module to adjust the current output by the light source assembly, and generates a second pulse width modulation signal according to the conduction angle of the thyristor dimmer and sends it to the driving and adjusting module to adjust the direct current, thereby realizing the simultaneous adjustment of brightness and color temperature in different application scenarios, giving users an experience of dual dimming curves and different color temperatures.

[0085] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A thyristor dial dual dimming driving circuit, characterized in that: Connected with the light source assembly, the thyristor dial dual dimming drive circuit includes: The thyristor dimmer is used to connect to the alternating current and set the corresponding conduction angle according to the thyristor control signal; A rectifier module, connected to the thyristor dimmer, for rectifying the voltage signal output by the thyristor dimmer to generate direct current; A DIP switch module, used for selecting a dimming and color adjustment gear, and outputting a color adjustment control signal and a dimming control signal according to the dimming and color adjustment gear; A driving and regulating module, connected to the rectifier module, the DIP switch module and the light source assembly, for receiving the dimming control signal and collecting the current output by the light source assembly, and regulating the direct current according to the dimming control signal and the collection result; A color temperature control module, connected to the light source assembly, for adjusting the current of each light-emitting unit in the light source assembly according to different switch duty ratios; a thyristor detection module, connected to the rectifier module, for detecting a conduction angle of the thyristor dimmer according to the direct current, and generating a thyristor conduction angle signal; and A control module is connected to the dip switch module, the drive adjustment module, the color temperature control module and the thyristor detection module, and is used to generate a first pulse width modulation signal according to the color adjustment control signal and send it to the color temperature control module to adjust the switch duty cycle of the color temperature control module, and to generate a second pulse width modulation signal according to the thyristor conduction angle signal and send it to the drive adjustment module to adjust the direct current; the dimming control signal is used to set the dimming stroke of the drive adjustment module, and the color adjustment control signal is used to set the color temperature of the light source assembly.

2. The thyristor dial dual dimming driving circuit according to claim 1, characterized in that: The thyristor dial dual dimming driving circuit also includes: The filter module is connected to the rectifier module and the drive adjustment module respectively, and is used for filtering the direct current output by the rectifier module and outputting the filtered direct current voltage to the drive adjustment module.

3. The thyristor dial dual dimming driving circuit according to claim 1, characterized in that: The thyristor dial dual dimming driving circuit also includes: An overcurrent protection module is connected to the rectifier module and is used to perform overcurrent protection on the alternating current.

4. The thyristor dial dual dimming driving circuit according to claim 1, characterized in that: The thyristor dial dual dimming driving circuit also includes: The ripple removal module is connected to the driving adjustment module and the light source assembly respectively, and is used to remove the ripple in the direct current.

5. The thyristor dial dual dimming driving circuit according to claim 1, characterized in that: The thyristor dial dual dimming driving circuit also includes: The power supply module is connected to the rectifier module and the control module respectively, and is used for receiving the direct current and performing voltage conversion on the direct current to supply power to the control module.

6. The thyristor dial dual dimming driving circuit according to claim 1, characterized in that: The dip switch module includes: a multi-speed switching switch, a plurality of color adjustment resistors and at least one dimming resistor; wherein the common end of the multi-speed switching switch is grounded, the plurality of switching contacts of the multi-speed switching switch are respectively connected to the first ends of the plurality of color adjustment resistors and the first end of the at least one dimming resistor in a one-to-one correspondence, the second ends of the plurality of color adjustment resistors are commonly connected to the control module, and the second end of the at least one dimming resistor is connected to the drive adjustment module.

7. The thyristor dial dual dimming driving circuit according to claim 1, characterized in that: The color temperature control module comprises: an optical coupling unit, connected to the control module, and configured to receive the first pulse width modulation signal and perform optical coupling isolation processing on the first pulse width modulation signal; The switch unit is connected to the optical coupling unit and the light source assembly, and is used for switching according to the first pulse width modulation signal after the optical coupling isolation process, so as to adjust the current of each light-emitting unit in the light source assembly.

8. The thyristor dial dual dimming driving circuit as claimed in claim 7, characterized in that: The switch unit includes: a switch tube, a voltage-regulating tube, a first voltage-dividing resistor and a second voltage-dividing resistor. The first end of the switch tube and the cathode of the voltage-regulating tube are commonly connected to an output end of the light source component, the first end of the first voltage-dividing resistor is connected to the input end of the light source component, the second end of the first voltage-dividing resistor, the first end of the second voltage-dividing resistor and the control end of the switch tube are commonly connected to a switch signal output end of the control module, and the second end of the switch tube, the anode of the voltage-regulating tube and the second end of the second voltage-dividing resistor are commonly connected to the ground.

9. A dimming driving device, characterized in that: It comprises the thyristor dial dual dimming drive circuit as described in any one of claims 1 to 8.

10. A lamp, characterized in that: include: Light source assembly; And the thyristor dial dual dimming drive circuit as described in any one of claims 1 to 8, wherein the thyristor dial dual dimming drive circuit is connected to the light source assembly.

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