Multi-color-temperature switching LED lamp

Abstract

The utility model discloses an LED lamp capable of switching multiple color temperatures. The LED lamp comprises a control module, a dial switch module, a wall switch module and a double-color light source module, the first input end of the control module is connected with the output end of the dial switch module, and the dial switch module is used for receiving a dial switch signal; the second input end of the control module is connected with the output end of the wall-cut switch module, and the wall-cut switch module is used for receiving a wall-cut switch signal; the output end of the control module is connected with the control end of the double-color light source module; the control module is used for adjusting the current output to the double-color light source module according to the dial switch signal or the wall switch signal, so that the color temperature of the lamp can be directly determined by dialing the dial switch to a corresponding color temperature gear; and the color temperature can be selected by switching on and off the wall switch, so that the effect of flexibly switching the color temperature is achieved.

Description

Technical Field

[0001] This utility model relates to the field of intelligent lighting technology, and in particular to an LED lamp with multi-color temperature switching. Background Technology

[0002] To meet different lighting requirements, existing LED lights typically have color temperature adjustment capabilities. Currently, traditional color temperature switching solutions are implemented in the following two ways:

[0003] Option 1: This involves connecting LEDs in series using a multi-position DIP switch. Different resistor values ​​are connected in series at different switch positions to change the equivalent impedance of the corresponding color temperature LED series, thereby altering the current flowing through the light source and ultimately changing the color temperature. For example, changing the current to the white and yellow LEDs will change the color temperature. However, DIP switches are usually mounted on the light fixture. Some customers may need to adjust the color temperature based on season, temperature, or mood, requiring the fixture to be removed, the switch manually moved, and then reinstalled, which is very inconvenient.

[0004] Option 2: This option involves connecting a color temperature switching chip in series with the LED light. Taking a three-level color temperature switch as an example, the user switches between different color temperatures by repeatedly turning the wall switch on and off. However, this option requires repeated on / off operations, leading to issues such as users accidentally turning the light on and off too many times or failing to switch to the preset color temperature, resulting in a poor user experience. Furthermore, if multiple color temperature levels are set, repeated on / off operations are required, and the actual number of color temperature levels that can be set is limited, failing to meet a wide range of color temperature needs. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide an LED light with multiple color temperature switching capabilities to improve the flexibility of color temperature switching.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A multi-color temperature switching LED light includes a control module, a DIP switch module, a wall-off switch module, and a dual-color light source module. The first input terminal of the control module is connected to the output terminal of the DIP switch module, which receives DIP switch signals. The second input terminal of the control module is connected to the output terminal of the wall-off switch module, which receives wall-off switch signals. The output terminal of the control module is connected to the control terminal of the dual-color light source module. The control module adjusts the current output to the dual-color light source module according to the DIP switch signals or the wall-off switch signals.

[0008] Furthermore, the control module includes a control unit and a dual-color channel unit; the first input terminal of the control unit is connected to the output terminal of the DIP switch module; the second input terminal of the control unit is connected to the output terminal of the wall-cutting switch module; the output terminal of the control unit is connected to the input terminal of the dual-color channel unit; the first output terminal of the dual-color channel unit is connected to the first light source control terminal of the dual-color light source module; and the second output terminal of the dual-color channel unit is connected to the second light source control terminal of the dual-color light source module.

[0009] Furthermore, the dual-color channel unit includes a first MOS transistor and a second MOS transistor; the control unit includes a first pulse output terminal and a second pulse output terminal; the drain of the first MOS transistor is connected to the first light source control terminal of the dual-color light source module, and the gate is connected to the first pulse output terminal; the drain of the second MOS transistor is connected to the second light source control terminal of the dual-color light source module, and the gate is connected to the second pulse output terminal; the sources of both the first and second MOS transistors are connected to the ground terminal of the control unit.

[0010] Furthermore, the control module also includes a power supply unit; the input terminal of the power supply unit is used to connect to a power source; the output terminal of the power supply unit is connected to the power supply terminal of the control unit.

[0011] Furthermore, the power supply unit includes a first resistor, a second resistor, and a first Zener diode; one end of the first resistor is connected to a power source; the other end of the first resistor is connected to one end of the second resistor; the other end of the second resistor is connected to the negative terminal of the first Zener diode and the power supply terminal of the control unit, respectively; the positive terminal of the first Zener diode is connected to the ground terminal of the control unit.

[0012] Furthermore, the DIP switch module includes a DIP switch unit, a third resistor, a fourth resistor, and a fifth resistor; the first input terminal of the control module includes a first sub-input terminal, a second sub-input terminal, and a third sub-input terminal; the first output terminal of the DIP switch unit is connected to one end of the third resistor and the first sub-input terminal; the second output terminal of the DIP switch unit is connected to one end of the fourth resistor and the second sub-input terminal; the third output terminal of the DIP switch unit is connected to one end of the fifth resistor and the third sub-input terminal; the other ends of the third resistor, the fourth resistor, and the fifth resistor are all used to connect to a power supply; the DIP switch unit is used to output different high and low level signals by electrically connecting to the third resistor, the fourth resistor, and the fifth resistor.

[0013] Furthermore, the wall-cutting switch module includes a sixth resistor, a seventh resistor, and a second Zener diode; one end of the sixth resistor is connected to a power supply; the other end of the sixth resistor is connected to one end of the seventh resistor, the cathode of the second Zener diode, and the second input terminal of the control module, and is used to detect the wall-cutting switch signal according to the operation of the external wall-cutting switch; the other end of the seventh resistor and the anode of the second Zener diode are both connected to the ground terminal of the control module.

[0014] Furthermore, it also includes a dimming constant current module; the input terminal of the dimming constant current module is used to connect to the power supply; the output terminal of the dimming constant current module is connected to the input terminal of the power supply unit and the input terminal of the dual-color light source module.

[0015] Furthermore, the dimming constant current module includes a dimming constant current unit, an eighth resistor, and a ninth resistor; the input terminal of the dimming constant current unit is used to connect to the positive terminal of the power supply; one end of the eighth resistor and one end of the ninth resistor are respectively connected to the power control terminal of the dimming constant current unit; the other end of the eighth resistor and the other end of the ninth resistor are both used to connect to the negative terminal of the power supply.

[0016] Furthermore, it also includes a rectifier module; the input terminal of the rectifier module is used to connect to a power supply; the output terminal of the rectifier module is connected to the input terminal of the dimming constant current module.

[0017] The beneficial effects of this utility model are as follows: by setting the DIP switch module and the wall-cut switch module to be connected to the control module respectively, the control module can adjust the current output to the dual-color light source module according to the DIP switch signal or the wall-cut switch signal, thereby realizing the ability to directly determine the color temperature of the lamp by moving the DIP switch to the corresponding color temperature position, and to select the color temperature by switching the wall-cut switch on and off, thus achieving the effect of flexibly switching the color temperature. Attached Figure Description

[0018] Figure 1 This is a circuit diagram of a multi-color temperature switching LED lamp according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of a control module for a multi-color temperature switching LED lamp in an embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram of a DIP switch module for a multi-color temperature switching LED lamp in an embodiment of this utility model;

[0021] Figure 4 This is a schematic diagram of a wall-mounted switch module for a multi-color temperature switching LED light in an embodiment of this utility model;

[0022] Figure 5This is a schematic diagram of a dimming constant current module for a multi-color temperature switching LED lamp in an embodiment of this utility model.

[0023] Figure 6 This is a schematic diagram of a control method for a multi-color temperature switching LED lamp in an embodiment of this utility model;

[0024] Label Explanation:

[0025] 1. Control module; 11. Dual-color channel unit; 12. Power supply unit; 2. DIP switch module; 3. Wall cut-off switch module; 4. Dual-color light source module; 5. Dimming constant current module; 6. Rectifier module;

[0026] IC2: Control unit; S: DIP switch unit; IC1: Dimming constant current unit; Q1: First MOSFET; Q2: Second MOSFET; ZD1: First Zener diode; ZD2: Second Zener diode; R1: First resistor; R2: Second resistor; R3: Third resistor; R4: Fourth resistor; R5: Fifth resistor; R6: Sixth resistor; R7: Seventh resistor; R8: Eighth resistor; R9: Ninth resistor. Detailed Implementation

[0027] To explain in detail the technical content, objectives, and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0028] A multi-color temperature switching LED light includes a control module, a DIP switch module, a wall-off switch module, and a dual-color light source module. The first input terminal of the control module is connected to the output terminal of the DIP switch module, which receives DIP switch signals. The second input terminal of the control module is connected to the output terminal of the wall-off switch module, which receives wall-off switch signals. The output terminal of the control module is connected to the control terminal of the dual-color light source module. The control module adjusts the current output to the dual-color light source module according to the DIP switch signals or the wall-off switch signals.

[0029] As can be seen from the above description, the beneficial effects of this utility model are as follows: by setting the DIP switch module and the wall switch module to be connected to the control module respectively, the control module can adjust the current output to the dual-color light source module according to the DIP switch signal or the wall switch signal, thereby realizing that the color temperature of the lamp can be directly determined by moving the DIP switch to the corresponding color temperature position, and the color temperature can be selected by switching the wall switch on and off, thus achieving the effect of flexibly switching the color temperature.

[0030] Furthermore, the control module includes a control unit and a dual-color channel unit; the first input terminal of the control unit is connected to the output terminal of the DIP switch module; the second input terminal of the control unit is connected to the output terminal of the wall-cutting switch module; the output terminal of the control unit is connected to the input terminal of the dual-color channel unit; the first output terminal of the dual-color channel unit is connected to the first light source control terminal of the dual-color light source module; and the second output terminal of the dual-color channel unit is connected to the second light source control terminal of the dual-color light source module.

[0031] As described above, the control module, composed of the control unit and the dual-color channel unit, enables the control unit to receive DIP switch signals or wall-off switch signals and then control the first and second output terminals of the dual-color channel unit to output different control signals to the first and second light source control terminals of the dual-color light source module, thereby achieving the switching of the color temperature of the dual-color light source module.

[0032] Furthermore, the dual-color channel unit includes a first MOS transistor and a second MOS transistor; the control unit includes a first pulse output terminal and a second pulse output terminal; the drain of the first MOS transistor is connected to the first light source control terminal of the dual-color light source module, and the gate is connected to the first pulse output terminal; the drain of the second MOS transistor is connected to the second light source control terminal of the dual-color light source module, and the gate is connected to the second pulse output terminal; the sources of both the first and second MOS transistors are connected to the ground terminal of the control unit.

[0033] As described above, by forming a dual-color channel unit with the first MOS transistor and the second MOS transistor, the control unit can output different pulse signals to the gates of the first MOS transistor and the second MOS transistor, and control the conduction duty cycle of the first MOS transistor and the second MOS transistor to realize the current control of the first light source and the second light source in the dual-color light source module, thereby realizing the color temperature change.

[0034] Furthermore, the control module also includes a power supply unit; the input terminal of the power supply unit is used to connect to a power source; the output terminal of the power supply unit is connected to the power supply terminal of the control unit.

[0035] As can be seen from the above description, by setting up a power supply unit, a stable power supply voltage can be provided to the control module, enabling the control unit to work stably.

[0036] Furthermore, the power supply unit includes a first resistor, a second resistor, and a first Zener diode; one end of the first resistor is connected to a power source; the other end of the first resistor is connected to one end of the second resistor; the other end of the second resistor is connected to the negative terminal of the first Zener diode and the power supply terminal of the control unit, respectively; the positive terminal of the first Zener diode is connected to the ground terminal of the control unit.

[0037] As described above, the power supply unit is composed of a first resistor, a second resistor, and a first Zener diode. The first resistor and the second resistor divide the power supply, and the first Zener diode regulates the voltage before inputting it into the control unit, thereby making the control module work more stably.

[0038] Furthermore, the DIP switch module includes a DIP switch unit, a third resistor, a fourth resistor, and a fifth resistor; the first input terminal of the control module includes a first sub-input terminal, a second sub-input terminal, and a third sub-input terminal; the first output terminal of the DIP switch unit is connected to one end of the third resistor and the first sub-input terminal; the second output terminal of the DIP switch unit is connected to one end of the fourth resistor and the second sub-input terminal; the third output terminal of the DIP switch unit is connected to one end of the fifth resistor and the third sub-input terminal; the other ends of the third resistor, the fourth resistor, and the fifth resistor are all used to connect to a power supply; the DIP switch unit is used to output different high and low level signals by electrically connecting to the third resistor, the fourth resistor, and the fifth resistor.

[0039] As described above, by connecting the output of the DIP switch unit to one end of the third, fourth, and fifth resistors respectively, and connecting it to the corresponding input of the control module, the control module will receive different high and low level signals when the DIP switch is toggled to different positions. The control unit will then determine and output different control signals, thereby achieving color temperature change.

[0040] Furthermore, the wall-cutting switch module includes a sixth resistor, a seventh resistor, and a second Zener diode; one end of the sixth resistor is connected to a power supply; the other end of the sixth resistor is connected to one end of the seventh resistor, the cathode of the second Zener diode, and the second input terminal of the control module, and is used to detect the wall-cutting switch signal according to the operation of the external wall-cutting switch; the other end of the seventh resistor and the anode of the second Zener diode are both connected to the ground terminal of the control module.

[0041] As described above, by setting the sixth resistor, the seventh resistor, and the second diode, the power-down signal and the power-on signal of the power supply can be effectively collected, thereby determining whether the user has performed a wall switch action, detecting the wall switch signal based on the wall switch action, and outputting a corresponding pulse signal based on the wall switch signal to achieve color temperature switching.

[0042] Furthermore, it also includes a dimming constant current module; the input terminal of the dimming constant current module is used to connect to the power supply; the output terminal of the dimming constant current module is connected to the input terminal of the power supply unit and the input terminal of the dual-color light source module.

[0043] As described above, by setting up a dimming constant current module to connect to the power supply, the input power can be converted into a stable voltage and current to power subsequent modules, thereby improving the overall stability of the circuit.

[0044] Furthermore, the dimming constant current module includes a dimming constant current unit, an eighth resistor, and a ninth resistor; the input terminal of the dimming constant current unit is used to connect to the positive terminal of the power supply; one end of the eighth resistor and one end of the ninth resistor are respectively connected to the power control terminal of the dimming constant current unit; the other end of the eighth resistor and the other end of the ninth resistor are both used to connect to the negative terminal of the power supply.

[0045] As described above, by setting the dimming constant current unit, the eighth resistor, and the ninth resistor, the dimming constant current unit can stabilize the current while the output power of the dimming constant current unit can be set by the eighth resistor and the ninth resistor, thereby ensuring that the dimming constant current unit operates at a suitable power.

[0046] Furthermore, it also includes a rectifier module; the input terminal of the rectifier module is used to connect to a power supply; the output terminal of the rectifier module is connected to the input terminal of the dimming constant current module.

[0047] As described above, by setting up a rectifier module, the input AC power can be converted into DC power, thereby providing DC power to the subsequent circuit modules.

[0048] The multi-color temperature switching LED lamp provided by this utility model can be applied to lighting products, realizing color temperature switching via a DIP switch on the LED lamp, as well as via a wall switch. The following is a detailed description of the implementation method:

[0049] Example 1

[0050] Please refer to Figure 1A multi-color temperature switching LED light includes a control module 1, a DIP switch module 2, a wall-off switch module 3, a dual-color light source module 4, a dimming constant current module 5, and a rectifier module 6. The input terminal of the rectifier module 6 is connected to a power supply (L&N) to rectify AC power into DC power to supply power to subsequent modules in the circuit. The output terminal of the rectifier module 6 is connected to the input terminal of the dimming constant current module 5, and the output terminal of the dimming constant current module 5 is connected to the input terminals of the control module 1 and the dual-color light source module 4. The first input terminal of the control module 1 is connected to the output terminal of the DIP switch module 2, which receives DIP switch signals. The second input terminal of the control module 1 is connected to the output terminal of the wall-off switch module 3, which receives wall-off switch signals. The output terminal of the control module 1 is connected to the control terminal of the dual-color light source module 4. The control module 1 adjusts the current output to the dual-color light source module 4 according to the DIP switch signals or the wall-off switch signals. In this embodiment, the dual-color light source module 4 includes a first light source (W1-W8) and a second light source (A1-A8). For example, the first light source is 2700K and the second light source is 5000K.

[0051] Please refer to Figure 2 The control module 1 includes a control unit IC2, a dual-color channel unit 11, and a power supply unit 12. The first input terminal of the control unit IC2 is connected to the output terminal of the DIP switch module 2. The second input terminal of the control unit IC2 is connected to the output terminal of the wall-cutting switch module 3. The output terminal of the control unit IC2 is connected to the input terminal of the dual-color channel unit 11. The first output terminal of the dual-color channel unit 11 is connected to the first light source control terminal of the dual-color light source module 4. The second output terminal of the dual-color channel unit 11 is connected to the second light source control terminal of the dual-color light source module 4. The input terminal of the power supply unit 12 is used to connect to a power source. The output terminal of the power supply unit 12 is connected to the power supply terminal of the control unit IC2.

[0052] The dual-color channel unit 11 includes a first MOS transistor Q1 and a second MOS transistor Q2; the control unit IC2 includes a first pulse output terminal (pwm1c) and a second pulse output terminal (pwm1b); the drain of the first MOS transistor Q1 is connected to the first light source control terminal of the dual-color light source module 4, i.e., the negative terminal of the light-emitting diode; the gate is connected to the first pulse output terminal; the drain of the second MOS transistor Q2 is connected to the second light source control terminal of the dual-color light source module 4, i.e., the negative terminal of the light-emitting diode; the gate is connected to the second pulse output terminal; the sources of the first MOS transistor Q1 and the second MOS transistor Q2 are both connected to the ground terminal of the control unit IC2.

[0053] The power supply unit 12 includes a first resistor R1, a second resistor R2, and a first Zener diode ZD1. One end of the first resistor R1 is connected to the power supply. The other end of the first resistor R1 is connected to one end of the second resistor R2. The other end of the second resistor R2 is connected to the cathode of the first Zener diode ZD1 and the power supply terminal of the control unit IC2. The anode of the first Zener diode ZD1 is connected to the ground terminal (GND) of the control unit IC2. In this embodiment, a stable 4.7V power supply voltage is obtained through the first resistor R1, the second resistor R2, and the first Zener diode ZD1; and a linear power supply scheme is adopted, which saves costs.

[0054] Please refer to Figure 3 The DIP switch module 2 includes a DIP switch unit S, a third resistor R3, a fourth resistor R4, and a fifth resistor R5; the first input terminal of the control module 1 includes a first sub-input terminal, a second sub-input terminal, and a third sub-input terminal; the first output terminal of the DIP switch unit S is connected to one end of the third resistor R3 and the first sub-input terminal; the second output terminal of the DIP switch unit S is connected to one end of the fourth resistor R4 and the second sub-input terminal; the third output terminal of the DIP switch unit S is connected to one end of the fifth resistor R5 and the third sub-input terminal; the other ends of the third resistor R3, the fourth resistor R4, and the fifth resistor R5 are all used to connect to a power supply; the DIP switch unit S is used to output different high and low level signals by being electrically connected to the third resistor R3, the fourth resistor R4, and the fifth resistor R5.

[0055] The DIP switch unit S uses a switch S with ≥2 positions, such as... Figure 3As shown, this embodiment uses a 5-position switch. The pins PIN3 / 4 / 5 of the control unit IC2 are pulled up to VCC through the third resistor R3, the fourth resistor R4, and the fifth resistor R5, respectively. By toggling the switch, the voltage levels of the three pins PIN3 / 4 / 5 are changed. According to the information in Table 1 below, the control unit IC2 outputs different PWM1 / PWM2 signals to the gates of the first MOSFET Q1 and the second MOSFET Q2 in the dual-color channel unit 11, controlling the duty cycle of the two MOSFETs to control the LED current of the first and second light sources in the dual-color light source module 4, thereby achieving color temperature change. For example, by toggling the switch from left to right on the light fixture, the following settings can be achieved: first setting = 2700K, second setting = 3000K, third setting = 3500K, fourth setting = 4000K, and fifth setting = 5000K. If the user's desired color temperature is 3500K, then the user only needs to toggle the switch to the third setting (3500K) before installing the light fixture. Upon powering on, the corresponding color temperature will be displayed. In other words, toggling the switch to any setting before powering on will automatically adjust the color temperature, satisfying the user's need for a simple, clear, and quick way to adjust the target color temperature using a hardware DIP switch.

[0056] Table 1. S-state table of DIP switch unit

[0057]

[0058] Please refer to Figure 4 The wall-cutting switch module 3 includes a sixth resistor R6, a seventh resistor R7, and a second Zener diode ZD2. One end of the sixth resistor R6 is connected to the power supply. The other end of the sixth resistor R6 is connected to one end of the seventh resistor R7, the cathode of the second Zener diode ZD2, and the second input terminal of the control module 1, and is used to detect the wall-cutting switch signal based on the operation of the external wall-cutting switch. The other end of the seventh resistor R7 and the anode of the second Zener diode ZD2 are both connected to the ground terminal of the control module 1. The system uses the sixth resistor R6, the seventh resistor R7, and the second Zener diode ZD2 to collect data on whether the bus voltage after the rectifier bridge has dropped to determine whether the user has activated the wall switch.

[0059] For example, after installing the light fixture and turning it on, the control unit IC2's PIN2 pin will detect the power-on and power-off signals when the wall switch is turned on and off. At this time, the control unit IC2 outputs PWM1 / PWM2 signals according to Table 2 below, causing the light fixture to enter a color temperature cycling state, such as 2700K→3000K→3500K→4000K→5000K→2700K→…, with each color temperature lasting for 2 seconds. When the target color temperature, such as 3500K, is reached, the wall switch is turned off, and 3500K is remembered. After powering on again, the light will continue to illuminate normally at 3500K. Unless the wall switch is turned on and off again, the light will continue to illuminate at 3500K to achieve the AUTO function, that is, the function of automatically cycling through color temperatures and selecting the color temperature when power is off. The wall switch can be programmed and defined to activate the color temperature selection function by switching the wall switch on and off at least 3 times within 3 seconds, or at least 5 times within 5 seconds. This allows users to easily and flexibly switch color temperatures without easily making mistakes. The wall switch operation does not affect the voltage levels of pins 3 / 4 / 5 of the control unit IC2; only the DIP switch can change the voltage levels of these three pins. If the light fixture is subsequently controlled via the DIP switch, it will automatically exit the color temperature defined by the AUTO function and return to the color temperature set by the DIP switch.

[0060] Table 2. Output PWM1 / PWM2 signals of control unit IC2

[0061]

[0062] Please refer to Figure 5 The dimming constant current module 5 includes a dimming constant current unit IC1, an eighth resistor R8, and a ninth resistor R9. The input terminal of the dimming constant current unit IC1 is connected to the positive terminal of the power supply. One end of the eighth resistor R8 and one end of the ninth resistor R9 are respectively connected to the power control terminal of the dimming constant current unit IC1. The other ends of the eighth resistor R8 and the ninth resistor R9 are both connected to the negative terminal of the power supply. By setting the resistance values ​​of the eighth resistor R8 and the ninth resistor R9, the SCR dimming function of the entire lamp and the setting of the maximum power of the entire lamp are realized.

[0063] Please refer to Figure 6The control unit IC2 has a software program to handle the priority of AUTO mode and DIP switch operation. After the lamp is powered on, it first checks whether the voltage levels of pins 3 / 4 / 5 of the control unit IC2 are the same as before the last power-off. ① If the levels are the same, it indicates that the DIP switch has not been toggled, and the PWM1 / PWM2 states before the last power-off are maintained, i.e., the color temperature remains unchanged. ② If the levels are different, it indicates that the DIP switch has been toggled, i.e., the user wants to change the color temperature through the DIP switch. In this case, the PWM1 / PWM2 states are output according to the toggled level as shown in Table 1.

[0064] When the light is on normally, if the switch is turned on ≥3 times within 3 seconds, the color temperature cycle jump state in Table 2 will begin. When the user turns off the power in a certain state, the control unit IC2 remembers that state (including the high / low level of pins 3 / 4 / 5). The next time the power is turned on, it will check whether the level of pins 3 / 4 / 5 is the same as before the last power-off, and then proceed with actions ① and ② above. The program runs according to this logic. The final color temperature is determined by the latter operation. The color temperature can be changed accurately and flexibly according to the user's psychological desires, which is both intelligent and convenient.

[0065] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A multi-color temperature switching LED lamp, characterized in that, Includes a control module, a DIP switch module, a wall-cutting switch module, and a dual-color light source module; The first input terminal of the control module is connected to the output terminal of the DIP switch module, and the DIP switch module is used to receive DIP switch signals. The second input terminal of the control module is connected to the output terminal of the wall cut-off switch module, and the wall cut-off switch module is used to receive the wall cut-off switch signal. The output terminal of the control module is connected to the control terminal of the dual-color light source module; The control module is used to adjust the current output to the dual-color light source module according to the DIP switch signal or the wall cut-off switch signal.

2. The multi-color temperature switching LED lamp according to claim 1, characterized in that, The control module includes a control unit and a dual-color channel unit; The first input terminal of the control unit is connected to the output terminal of the DIP switch module; The second input terminal of the control unit is connected to the output terminal of the wall cut-off switch module; The output terminal of the control unit is connected to the input terminal of the dual-color channel unit; The first output terminal of the dual-color channel unit is connected to the first light source control terminal of the dual-color light source module; The second output terminal of the dual-color channel unit is connected to the second light source control terminal of the dual-color light source module.

3. The multi-color temperature switching LED lamp according to claim 2, characterized in that, The dual-color channel unit includes a first MOS transistor and a second MOS transistor; the control unit includes a first pulse output terminal and a second pulse output terminal; The drain of the first MOS transistor is connected to the first light source control terminal of the dual-color light source module, and the gate is connected to the first pulse output terminal. The drain of the second MOS transistor is connected to the second light source control terminal of the dual-color light source module, and the gate is connected to the second pulse output terminal. The source of the first MOS transistor and the source of the second MOS transistor are both connected to the ground terminal of the control unit.

4. The multi-color temperature switching LED lamp according to claim 2, characterized in that, The control module also includes a power supply unit; The input terminal of the power supply unit is used to connect to a power source; The output terminal of the power supply unit is connected to the power supply terminal of the control unit.

5. A multi-color temperature switching LED lamp according to claim 4, characterized in that, The power supply unit includes a first resistor, a second resistor, and a first Zener diode; One end of the first resistor is used to connect to the power supply; The other end of the first resistor is connected to one end of the second resistor; The other end of the second resistor is connected to the negative terminal of the first Zener diode and the power supply terminal of the control unit, respectively. The positive terminal of the first Zener diode is connected to the ground terminal of the control unit.

6. A multi-color temperature switching LED lamp according to claim 2, characterized in that, The DIP switch module includes a DIP switch unit, a third resistor, a fourth resistor, and a fifth resistor; The first input terminal of the control module includes a first sub-input terminal, a second sub-input terminal, and a third sub-input terminal; The first output terminal of the DIP switch unit is connected to one end of the third resistor and the first sub-input terminal; The second output terminal of the DIP switch unit is connected to one end of the fourth resistor and the second sub-input terminal; The third output terminal of the DIP switch unit is connected to one end of the fifth resistor and the third sub-input terminal; The other ends of the third resistor, the fourth resistor, and the fifth resistor are all used to connect to the power supply terminal of the control unit. The DIP switch unit is used to output different high and low level signals by being electrically connected to the third resistor, the fourth resistor, and the fifth resistor.

7. A multi-color temperature switching LED lamp according to claim 1, characterized in that, The wall-cutting switch module includes a sixth resistor, a seventh resistor, and a second Zener diode; One end of the sixth resistor is used to connect to the power supply; The other end of the sixth resistor is connected to one end of the seventh resistor, the cathode of the second Zener diode, and the second input terminal of the control module, and is used to detect the wall-cutting switch signal according to the operation of the external wall-cutting switch; The other end of the seventh resistor and the positive terminal of the second Zener diode are both connected to the ground terminal of the control module.

8. A multi-color temperature switching LED lamp according to claim 4, characterized in that, It also includes a dimming constant current module; The input terminal of the dimming constant current module is used to connect to the power supply; The output terminal of the dimming constant current module is connected to the input terminal of the power supply unit and the input terminal of the dual-color light source module.

9. A multi-color temperature switching LED lamp according to claim 8, characterized in that, The dimming constant current module includes a dimming constant current unit, an eighth resistor, and a ninth resistor; The input terminal of the dimming constant current unit is used to connect to the positive terminal of the power supply; One end of the eighth resistor and one end of the ninth resistor are respectively connected to the power control terminal of the dimming constant current unit. The other end of the eighth resistor and the other end of the ninth resistor are both used to connect to the negative terminal of the power supply.

10. A multi-color temperature switching LED lamp according to claim 8, characterized in that, It also includes a rectifier module; The input terminal of the rectifier module is used to connect to the power supply; The output terminal of the rectifier module is connected to the input terminal of the dimming constant current module.

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