Multi-control-mode dimming and color-adjusting lamp circuit

Abstract

The utility model discloses a light and color modulation lamp circuit with multiple control modes, which comprises a controller, a voice detection circuit, a light modulation circuit and a color modulation LED lamp circuit, the voice detection circuit is connected with the controller, the voice detection circuit is used for acquiring sound signals, the controller is used for identifying according to the sound signals, and the light modulation circuit is connected with the color modulation LED lamp circuit. A dimming and color modulation control signal is obtained; the dimming circuit is connected with the controller; the dimming circuit is connected with the dimming circuit, the controller is connected with the dimming circuit, the color modulation LED lamp circuit is connected with the dimming circuit and the controller, an LED lamp strip is arranged on the color modulation LED lamp circuit, the controller is used for outputting a PWM control signal according to the dimming and color modulation control signal to control the dimming circuit and the color modulation LED lamp circuit, and dimming and color modulation control is carried out on the LED lamp strip through the dimming circuit and the color modulation LED lamp circuit. A plurality of LED lighting lamps can be synchronously controlled in a voice instruction mode, so that the method is more convenient.

Description

Technical Field

[0001] This utility model relates to the field of lighting circuit technology, and in particular to a dimming and color-adjusting lamp circuit with multiple control modes. Background Technology

[0002] Light-emitting diodes (LEDs) possess outstanding advantages such as high luminous efficiency, low energy consumption, long lifespan, recyclable materials, and excellent dimming performance. Therefore, LEDs are widely used in the lighting field as a green and efficient light source. In jewelry lighting applications, the requirements for luminaires are relatively high in order to better illuminate the jewelry.

[0003] In existing lighting dimming technologies, the dimming of the lamp panel is mainly adjusted via buttons or infrared remote control. This method requires manual adjustment of each lamp individually, which is relatively cumbersome. Utility Model Content

[0004] The present invention aims to at least partially solve one of the technical problems in the related art. Therefore, one objective of the present invention is to provide a multi-mode dimming and color-adjusting lamp circuit.

[0005] To achieve the above objectives, a multi-mode dimming and color-changing lamp circuit according to an embodiment of the present invention includes:

[0006] Controller;

[0007] A voice detection circuit is connected to the controller. The voice detection circuit is used to acquire sound signals, and the controller is used to identify the sound signals to acquire dimming and color-adjusting control signals.

[0008] A dimming circuit, which is connected to the controller;

[0009] A color-adjusting LED light circuit is provided, which is connected to the dimming circuit and the controller respectively. The color-adjusting LED light circuit is provided with an LED light strip. The controller is used to output a PWM control signal according to the dimming and color-adjusting control signal to control the dimming circuit and the color-adjusting LED light circuit, and to control the dimming and color-adjusting of the LED light strip through the dimming circuit and the color-adjusting LED light circuit.

[0010] Furthermore, according to one embodiment of the present invention, the multi-control mode dimming and color-changing lamp circuit further includes a voice prompt circuit, which is connected to the controller to output sound prompts under the control of the controller.

[0011] Furthermore, according to one embodiment of the present invention, the voice prompt circuit includes:

[0012] Transistor Q3, the base of transistor Q3 is connected to a control terminal of the controller through resistor R44, and the emitter of transistor Q3 is connected to reference ground;

[0013] Speaker B1, one end of which is connected to the collector of transistor Q3, and the other end of which is connected to power supply VDD;

[0014] Diode D1, the anode of diode D1 is connected to the collector of transistor Q3, and the cathode of diode D1 is connected to the power supply VDD.

[0015] Furthermore, according to one embodiment of the present invention, the voice detection circuit includes:

[0016] Microphone J1,

[0017] An audio amplifier circuit is provided, wherein the signal input terminal of the audio amplifier circuit is connected to the audio signal output terminal of the microphone J1, and the output terminal of the audio amplifier circuit is connected to the controller to amplify the audio signal and output it to the controller.

[0018] Furthermore, according to one embodiment of the present invention, the audio amplification circuit includes:

[0019] Transistor Q2, the base of transistor Q2 is connected to the audio signal output terminal of microphone J1 through capacitor C22, the base of transistor Q2 is also connected to power supply VCC through resistor R42, the emitter of transistor Q2 is connected to reference ground, the collector of transistor Q2 is connected to power supply VCC through resistor R43, and the collector of transistor Q2 is also connected to the audio signal receiving terminal of controller.

[0020] Furthermore, according to one embodiment of the present invention, the multi-control mode dimming and color-changing lamp circuit further includes:

[0021] An infrared receiving circuit includes an infrared receiver connected to the controller. The controller receives infrared control signals through the infrared receiving circuit and controls the dimming and color adjustment of the LED light strip according to the infrared control signals.

[0022] Furthermore, according to one embodiment of the present invention, a button control circuit is also included, the button control circuit comprising:

[0023] Control button K5, one end of which is connected to a DC power supply +5V through resistor R1, and the other end of which is connected to a reference ground through resistor R6. The other end of control button K5 is also connected to the controller.

[0024] Control button K4, one end of which is connected to one end of control button K5 via resistor R2, and the other end of control button K4 is connected to the other end of control button K5;

[0025] Control button K3, one end of which is connected to one end of control button K4 via resistor R3, and the other end of control button K3 is connected to the other end of control button K5;

[0026] Control button K2, one end of which is connected to one end of control button K3 via resistor R4, and the other end of control button K2 is connected to the other end of control button K5;

[0027] A control button K1 is provided, one end of which is connected to one end of the control button K2 via a resistor R5, and the other end of the control button K1 is connected to the other end of the control button K5.

[0028] Furthermore, according to one embodiment of the present invention, the dimming circuit includes:

[0029] A constant current controller U4, the power supply terminal of which is connected to the power supply VBUS through a resistor R15, and the dimming control terminal PWM of the constant current controller U4 is connected to a control terminal of the controller.

[0030] Inductor L2, one end of which is connected to the adjustment control terminal Drain of the constant current controller U4, and the other end of which is connected to the LED light strip;

[0031] Capacitor C8, one end of which is connected to the other end of inductor L2, and the other end of capacitor C8 is connected to power supply VBUS;

[0032] Diode D8, the anode of diode D8 is connected to one end of inductor L2, and the cathode of diode D8 is connected to power supply VBUS;

[0033] A current sensing resistor R25 is provided, one end of which is connected to the current sensing terminal of the constant current controller U4, and the other end of which is connected to the reference ground.

[0034] Furthermore, according to one embodiment of the present invention, the LED light strip includes a first color LED light strip and a second color LED light strip, and the color-adjusting LED light circuit further includes:

[0035] A first color adjustment control circuit is connected to the first color LED light strip to control the color adjustment of the first color LED light strip;

[0036] The second color adjustment control circuit is connected to the second color LED light strip to control the color adjustment of the two-color LED light strip.

[0037] Furthermore, according to one embodiment of the present invention, the first color-matching control circuit includes:

[0038] Transistor Q1, the base of transistor Q1 is connected to a color control terminal of the controller through resistor R16, and the emitter of transistor Q1 is connected to reference ground;

[0039] The collector of transistor Q1 is connected to the gate of MOSFET V3 through resistor R38. The gate of MOSFET V3 is also connected to power supply VBUS through resistor R11. The source of MOSFET V3 is connected to power supply VBUS. The drain of MOSFET V3 is connected to the first color LED strip.

[0040] This utility model provides a multi-mode dimming and color-adjusting lamp circuit with various control modes. It is connected to a controller via a voice detection circuit, which acquires sound signals. The controller identifies these sound signals to obtain dimming and color-adjusting control signals. A dimming circuit is connected to the controller. A color-adjusting LED lamp circuit is connected to both the dimming circuit and the controller. The color-adjusting LED lamp circuit has LED strips. The controller outputs a PWM control signal based on the dimming and color-adjusting control signals to control the dimming circuit and the color-adjusting LED lamp circuit. The dimming circuit and the color-adjusting LED lamp circuit then control the dimming and color-adjusting of the LED strips. Multiple LED lighting fixtures can be simultaneously controlled synchronously via voice commands, making the process more convenient. Attached Figure Description

[0041] Figure 1 A structural block diagram of a dimming and color-changing lamp circuit with multiple control modes provided by this utility model;

[0042] Figure 2 Schematic diagrams of the controller, voice detection circuit, and voice prompt circuit provided by this utility model;

[0043] Figure 3A schematic diagram of the infrared receiving circuit structure provided by this utility model;

[0044] Figure 4 A schematic diagram of the key control circuit structure provided by this utility model;

[0045] Figure 5 A schematic diagram of the dimming circuit structure provided by this utility model;

[0046] Figure 6 A schematic diagram of the color-adjustable LED lamp circuit structure provided by this utility model.

[0047] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0048] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the present invention.

[0049] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the present invention. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0050] See Figure 1 This utility model embodiment provides a dimming and color-adjusting lamp circuit with multiple control modes, including: a controller, a voice detection circuit, a dimming circuit, and a color-adjusting LED lamp circuit. The voice detection circuit is connected to the controller and is used to acquire sound signals. The controller is used to identify the sound signals to obtain dimming and color-adjusting control signals. The dimming circuit is connected to the controller. The color-adjusting LED lamp circuit is connected to both the dimming circuit and the controller. The color-adjusting LED lamp circuit is equipped with LED light strips. The controller is used to output PWM control signals according to the dimming and color-adjusting control signals to control the dimming circuit and the color-adjusting LED lamp circuit, thereby controlling the dimming and color-adjusting of the LED light strips through the dimming circuit and the color-adjusting LED lamp circuit.

[0051] Specifically, such as Figure 1As shown, the voice detection circuit can detect sound signals. When a sound signal is detected, the controller can identify it to determine if there is a corresponding dimming and color-adjustment control command. When the corresponding control command is identified, the controller can output a corresponding control signal to the dimming circuit and the color-adjustment LED circuit. The dimming circuit outputs a dimming signal to the color-adjustment LED circuit, which can further adjust the color temperature according to the control signal, thereby achieving dimming and color-adjustment control of the LED light strip. Compared to the existing technology of dimming and color-adjustment control via buttons, voice command control is more convenient, especially in applications with many individual lights distributed at a height. Voice commands allow for simultaneous synchronous control of multiple LED lighting fixtures, further enhancing convenience.

[0052] See Figure 1 and Figure 2 The multi-mode dimming and color-changing lamp circuit also includes a voice prompt circuit, which is connected to the controller to output sound prompts under the control of the controller. In some applications, the voice prompt circuit can provide corresponding prompts to guide the user to perform appropriate operations. Figure 2 As shown, the voice prompt circuit includes: a transistor Q3, a speaker B1, and a diode D1. The base of transistor Q3 is connected to a control terminal of the controller through a resistor R44, and the emitter of transistor Q3 is connected to a reference ground. One end of speaker B1 is connected to the collector of transistor Q3, and the other end of speaker B1 is connected to the power supply VDD. The anode of diode D1 is connected to the collector of transistor Q3, and the cathode of diode D1 is connected to the power supply VDD. Figure 2 As shown, when the controller needs to control the speaker B1 to output a sound signal, it can control the transistor Q3. In some embodiments, the speaker B1 can be a speaker device with integrated sound storage and playback. The transistor Q3 can control the conduction of power to the speaker B1. When the controller outputs a high-level signal, the transistor Q3 can be turned on to power the speaker B1, and the speaker B1 can play a corresponding prompt sound. For example, it can be a sound guiding the user to perform sound dimming operations. In some other embodiments, the speaker B1 can also be a buzzer. The controller outputs a PWM signal to control the conduction and cutoff of the transistor Q3, thereby driving the buzzer to emit a corresponding sound to indicate the corresponding operation result.

[0053] See Figure 2The voice detection circuit includes a microphone J1 and an audio amplifier circuit. The signal input terminal of the audio amplifier circuit is connected to the audio signal output terminal of the microphone J1, and the output terminal of the audio amplifier circuit is connected to the controller to amplify the audio signal and output it to the controller.

[0054] like Figure 2 As shown, the audio amplifier circuit includes: a transistor Q2, the base of which is connected to the audio signal output terminal of the microphone J1 through a capacitor C22, the base of which is also connected to the power supply VCC through a resistor R42, the emitter of which is connected to a reference ground, the collector of which is connected to the power supply VCC through a resistor R43, and the collector of which is also connected to the audio signal receiving terminal of the controller.

[0055] Specifically, the audio amplifier circuit operates as follows: resistors R42 and R43 provide the corresponding bias voltage to transistor Q2. The audio signal acquired by microphone J1 is isolated from the DC signal by capacitor C22 and then output to the base of transistor Q2 for amplification. Finally, the signal is output from the collector of transistor Q2 to the audio signal acquisition terminal of the controller for audio signal acquisition and control command recognition. The audio amplifier circuit may also include capacitors C21 and C23, which can be used to filter out interference signals and prevent the acquisition of excessive noise signals.

[0056] See Figure 1 and Figure 3 The multi-control mode dimming and color-adjusting lamp circuit further includes: an infrared receiving circuit, which includes an infrared receiver connected to the controller. The controller is used to receive infrared control signals through the infrared receiving circuit and to control the dimming and color-adjusting of the LED light strip according to the infrared control signals. Figure 3 As shown, the infrared receiver is installed on the IR interface. It receives remote control signals from the infrared remote control and outputs them to the controller via the IRdat signal terminal. This allows the controller to receive the remote control signals, which can be dimming or color-adjusting signals. Users can then control the dimming and color-adjusting of the LED light circuit using the remote control. For example, the brightness of the LED light circuit can be adjusted to a specific level according to lighting requirements. Individual dimming and color-adjusting control of a single light fixture can be achieved through the infrared receiving circuit. Simultaneous control of multiple lights in conjunction with voice control further enhances the user's lighting adjustment needs. For example, when multiple indoor lights need to be adjusted simultaneously, voice commands can be used; when adjusting a single light fixture, an infrared remote control can be used.

[0057] See Figure 1 and Figure 4 The multi-mode dimming and color-adjusting lamp circuit also includes a button control circuit, which includes control buttons K5, K4, K3, K2, and K1. One end of control button K5 is connected to a +5V DC power supply via resistor R1, and the other end of control button K5 is connected to ground via resistor R6. The other end of control button K5 is also connected to the controller. One end of control button K4 is connected to the same end of control button K5 via resistor R2, and the other end of control button K4 is connected to the same control button. The other end of key K5 is connected; one end of control key K3 is connected to one end of control key K4 through resistor R3, and the other end of control key K3 is connected to the other end of control key K5; one end of control key K2 is connected to one end of control key K3 through resistor R4, and the other end of control key K2 is connected to the other end of control key K5; one end of control key K1 is connected to one end of control key K2 through resistor R5, and the other end of control key K1 is connected to the other end of control key K5.

[0058] In some other embodiments, control buttons can also be used to send control commands to the controller for adjusting the lights. For example... Figure 4 As shown, the button control circuit operates as follows: Control buttons K5, K4, K3, K2, and K1 form a voltage divider circuit between resistors R6 and R1-R5, dividing the +5V DC power supply and outputting it to the controller via signal terminal K. Thus, when different control buttons (K1-R5) are pressed and activated, they output different voltage values ​​to the controller via signal terminal K. The controller can then receive different dimming and color-adjusting control commands and perform dimming and color-adjusting control.

[0059] See Figure 5The dimming circuit includes: a constant current controller U4, an inductor L2, a capacitor C8, a diode D8, and a current sensing resistor R25. The power supply terminal of the constant current controller U4 is connected to the power supply VBUS through a resistor R15, and the dimming control terminal PWM of the constant current controller U4 is connected to one control terminal of the controller. One end of the inductor L2 is connected to the adjustment control terminal Drain of the constant current controller U4, and the other end of the inductor L2 is connected to the LED light strip. One end of the capacitor C8 is connected to the other end of the inductor L2, and the other end of the capacitor C8 is connected to the power supply VBUS. The anode of the diode D8 is connected to the first end of the inductor L2, and the cathode of the diode D8 is connected to the power supply VBUS. One end of the current sensing resistor R25 is connected to the current sensing terminal of the constant current controller U4, and the other end of the current sensing resistor R25 is connected to a reference ground.

[0060] Specifically, the dimming circuit constitutes a BUCK constant current circuit, where diode D8 is a freewheeling diode, and inductor L2 and capacitor C8 are voltage regulation and filtering components, respectively. The constant current controller U4 detects the current in the circuit through current sensing resistor R25 and adjusts the control based on the circuit current to ensure the stability of the output current. The magnitude of the current in the dimming circuit can be controlled by the controller outputting a PWM signal. Since the brightness of an LED lamp is typically linearly related to the current, the brightness can be adjusted by regulating the overall circuit current of the LED lamp.

[0061] See Figure 6 The LED light circuit may include multiple LED light strips. The LED light strips are connected to the dimming circuit via LED2 - power supply terminal, so that the brightness can be adjusted and controlled under the control of the dimming circuit.

[0062] like Figure 6 As shown, the LED light strip includes a first-color LED light strip and a second-color LED light strip. The color-adjusting LED light circuit further includes: a first color-adjusting control circuit and a second color-adjusting control circuit. The first color-adjusting control circuit is connected to the first-color LED light strip to control the color of the first-color LED light strip; the second color-adjusting control circuit is connected to the second-color LED light strip to control the color of the second-color LED light strip. There are one or more first-color LED light strips, and the color-adjusting terminals of each first-color LED light strip are respectively connected to the first color-adjusting control circuit. There are one or more second-color LED light strips, and the color-adjusting terminals of each second-color LED light strip are respectively connected to the dimming terminal LED2- of the dimming circuit. Thus, dimming can be performed under the control of the dimming circuit.

[0063] like Figure 6 As shown, the first color control circuit includes: a transistor Q1 and a MOSFET V3. The base of the transistor Q1 is connected to a color control terminal of the controller through a resistor R16, and the emitter of the transistor Q1 is connected to a reference ground. The collector of the transistor Q1 is connected to the gate of the MOSFET V3 through a resistor R38. The gate of the MOSFET V3 is also connected to the power supply VBUS through a resistor R11. The source of the MOSFET V3 is connected to the power supply VBUS, and the drain of the MOSFET V3 is connected to the first color LED strip.

[0064] Specifically, the first color-tuning control circuit operates as follows: the controller outputs a PWM signal with a certain duty cycle through the IO1 signal terminal. When the PWM signal is high, transistor Q1 and MOSFET V3 are turned on, supplying power to the LED circuit. Under the dimming circuit, the LED circuit outputs a constant current, causing the LED beads to emit light. When the PWM signal is low, transistor Q1 and MOSFET V3 are turned off, extinguishing the LED beads. By adjusting the duty cycle of this PWM signal, the average current of the LED circuit can be adjusted. This further adjusts the average current on the first-color LED strip, thereby further controlling the brightness of the first-color LED strip.

[0065] Specifically, such as Figure 6 As shown, the second color-tuning control circuit operates in the same way as the first color-tuning control circuit. The second color-tuning control circuit can further adjust and control the average current on the second-color LED strip, thereby further adjusting and controlling the brightness of the first-color LED strip. Further adjustment of the color temperature of the lamp can be achieved by mixing the two colors of light.

[0066] The above are merely embodiments of this utility model, but do not limit the patent scope of this utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

[0067] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0068] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention, and all such changes and variations are within the protection scope of the present invention.

Claims

1. A multi-control mode dimming and color-tuning light circuit, characterized in that, It comprises: a controller; a voice detection circuit connected with the controller, the voice detection circuit being used to acquire a sound signal, and the controller being used to identify according to the sound signal to acquire a dimming and color control signal; a dimming circuit connected with the controller; a color LED lamp circuit connected with the dimming circuit and the controller respectively, the color LED lamp circuit being provided with an LED lamp strip, and the controller being used to output a PWM control signal to control the dimming circuit and the color LED lamp circuit according to the dimming and color control signal, and the LED lamp strip being controlled by the dimming circuit and the color LED lamp circuit for dimming and color control.

2. The multi-control-mode dimmable tunable lamp circuit of claim 1, wherein, It further comprises a voice prompt circuit connected with the controller to output a sound prompt under the control of the controller.

3. The multi-mode control dimmable color lamp circuit of claim 2, wherein, The voice prompt circuit comprises: a triode Q3, a base of the triode Q3 being connected with a control end of the controller through a resistor R44, and an emitter of the triode Q3 being connected with a reference ground; a speaker B1, one end of the speaker B1 being connected with a collector of the triode Q3, and the other end of the speaker B1 being connected with a power supply VDD; a diode D1, an anode of the diode D1 being connected with the collector of the triode Q3, and a cathode of the diode D1 being connected with the power supply VDD.

4. The multi-mode control dimmable tunable lamp circuit of claim 1, wherein, The voice detection circuit comprises: a microphone J1, an audio amplification circuit, a signal input end of the audio amplification circuit being connected with an audio signal output end of the microphone J1, and an output end of the audio amplification circuit being connected with the controller to output an amplified audio signal to the controller.

5. The multi-control mode dimmable tunable lamp circuit of claim 4, wherein, The audio amplification circuit comprises: a triode Q2, a base of the triode Q2 being connected with the audio signal output end of the microphone J1 through a capacitor C22, the base of the triode Q2 being further connected with a power supply VCC through a resistor R42, an emitter of the triode Q2 being connected with the reference ground, a collector of the triode Q2 being connected with the power supply VCC through a resistor R43, and the collector of the triode Q2 being further connected with an audio signal receiving end of the controller.

6. The multi-mode control dimmable tunable lamp circuit of claim 1, wherein, It further comprises: an infrared receiving circuit comprising an infrared receiver, the infrared receiver being connected with the controller, the controller being used to receive an infrared control signal through the infrared receiving circuit and control the LED lamp strip for dimming and color control according to the infrared control signal.

7. The multi-mode control dimmable tunable lamp circuit of claim 1, wherein, It further comprises a key control circuit comprising: a control key K5, one end of the control key K5 being connected with a direct current power supply +5V through a resistor R1, the other end of the control key K5 being connected with the reference ground through a resistor R6, and the other end of the control key K5 being further connected with the controller; a control key K4, one end of the control key K4 being connected with the one end of the control key K5 through a resistor R2, and the other end of the control key K4 being connected with the other end of the control key K5; A control button K3, one end of the control button K3 is connected with the one end of the control button K4 through a resistor R3, the other end of the control button K3 is connected with the other end of the control button K5; A control button K2, one end of the control button K2 is connected with the one end of the control button K3 through a resistor R4, the other end of the control button K2 is connected with the other end of the control button K5; A control button K1, one end of the control button K1 is connected with the one end of the control button K2 through a resistor R5, the other end of the control button K1 is connected with the other end of the control button K5.

8. The multi-mode control dimmable tunable lamp circuit of claim 1, wherein, The dimming circuit comprises: A constant current controller U4, a power supply end of the constant current controller U4 is connected with a power supply VBUS through a resistor R15, a dimming control end PWM of the constant current controller U4 is connected with a control end of the controller; An inductor L2, one end of the inductor L2 is connected with a regulation control end Drain of the constant current controller U4, the other end of the inductor L2 is connected with the LED light bar; A capacitor C8, one end of the capacitor C8 is connected with the other end of the inductor L2, the other end of the capacitor C8 is connected with the power supply VBUS; A diode D8, an anode of the diode D8 is connected with the one end of the inductor L2, a cathode of the diode D8 is connected with the power supply VBUS; A current detection resistor R25, one end of the current detection resistor R25 is connected with a current detection end of the constant current controller U4, the other end of the current detection resistor R25 is connected with a reference ground.

9. The multi-mode control dimmable tunable lamp circuit of claim 1, wherein, The LED light bar comprises a first color LED light bar and a second color LED light bar, and the color adjusting LED light circuit further comprises: A first color adjusting control circuit, the first color adjusting control circuit is connected with the first color LED light bar to perform color adjusting control on the first color LED light bar; A second color adjusting control circuit, the second color adjusting control circuit is connected with the second color LED light bar to perform color adjusting control on the second color LED light bar.

10. The multi-mode control dimmable color lamp circuit of claim 9, wherein, The first color adjusting control circuit comprises: A transistor Q1, a base of the transistor Q1 is connected with a color adjusting control end of the controller through a resistor R16, an emitter of the transistor Q1 is connected with a reference ground; A MOS tube V3, a collector of the transistor Q1 is connected with a gate of the MOS tube V3 through a resistor R38, the gate of the MOS tube V3 is also connected with the power supply VBUS through a resistor R11, a source of the MOS tube V3 is connected with the power supply VBUS, a drain of the MOS tube V3 is connected with the first color LED light bar.

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