Touch control circuit of illuminating lamp

Abstract

The utility model provides a touch control circuit of illuminating lamp, including power supply circuit module, touch detection module, touch control module and LED lamp drive module, power supply circuit module is used for power supply to touch detection module, touch control module and LED lamp drive module, touch detection module is connected with the input terminal of touch control module, and the input terminal of touch control module is connected with the input terminal of LED lamp drive module. The output end of the touch control module is connected with the LED lamp driving module, the touch detection module comprises a touch capacitor and a plurality of touch resistors, the touch capacitor is used for adjusting touch sensitivity, and the touch resistors are used for enhancing touch interference resistance. And the touch control module outputs a corresponding control signal to the LED lamp driving module according to the electric signal transmitted by the touch detection module to drive the LED lamp group connected with the LED lamp driving module to execute corresponding switching, brightness and color temperature adjustment. The control circuit is convenient to control and stable and reliable.

Description

Technical Field

[0001] This utility model relates to the technical field of lighting control, and particularly to a touch control circuit for a lighting lamp. Background Art

[0002] With the gradual improvement of people's living standards, traditional control switches cannot meet people's needs for intelligent and energy-saving switches.

[0003] Existing LED lamps usually do not have the function of adjusting light, including adjusting the light intensity and color temperature. This makes the application range of LED lamps very narrow and not very convenient to use. In addition, LED lamps generally only have a mechanical button as a switch button, or some use an electrostatic induction device as a switch control. However, when LED lamps have the function of adjusting light, the above simple button or control method cannot meet the operation requirements, so it is necessary to improve the existing LED lamps. Summary of the Invention

[0004] In view of this, the purpose of this utility model is to provide a touch control circuit for a lighting lamp, which can realize the switching, brightness and color temperature regulation of the lighting lamp through a touch method.

[0005] The purpose of this utility model can be achieved by the following technical solutions: A touch control circuit for a lighting lamp, including a power supply circuit module, a touch detection module, a touch control module and an LED lamp driving module. The power supply circuit module is used to supply power to the touch detection module, the touch control module and the LED lamp driving module. It is characterized in that the touch detection module is connected to the input end of the touch control module, the output end of the touch control module is connected to the LED lamp driving module. The touch detection module includes a touch capacitor and a plurality of touch control resistors. The touch capacitor is used for adjusting touch sensitivity. The plurality of touch control resistors are arranged in sequence to form a touch control area, and each touch control resistor is respectively connected to the touch control module for triggering a touch control signal. The touch control module outputs a corresponding control signal to the LED lamp driving module according to the electrical signal transmitted by the touch detection module. The LED lamp driving module drives the LED lamp group connected thereto to perform corresponding switching, brightness and color temperature adjustment according to the control signal.

[0006] Preferably, there is one LED lamp driving module, and the LED lamp driving module is used to connect a white light lamp group or a warm light lamp group. When there is only one LED lamp driving module, the brightness conditions of a single white light lamp / single warm light lamp can be controlled through this LED lamp driving module.

[0007] Preferably, there are two LED lamp driving modules, which are respectively connected to the white light lamp group and the warm light lamp group. By controlling the two LED lamp driving modules respectively to control the white light lamp group and the warm light lamp group, the brightness adjustment and color temperature adjustment of the combined lamp group can be realized.

[0008] Preferably, the power supply circuit module includes a 12V power input terminal, a 12V to 5V circuit, a filtering circuit, and a 5V to 3V circuit. The 12V power input terminal is respectively connected to the 12V to 5V circuit and the LED lamp driving module. The output terminal of the 12V to 5V circuit is connected to the first filtering circuit. The output terminal of the first filtering circuit is connected to the 5V to 3V circuit, and the 5V to 3V circuit is connected to the input terminal of the touch control module.

[0009] Preferably, the 12V power input terminal is connected with a first reverse connection prevention circuit, and the output terminal of the first reverse connection prevention circuit is respectively connected to the 12V to 5V circuit and the LED lamp driving module.

[0010] Preferably, the input terminal of the 5V to 3V circuit is connected with a second reverse connection prevention circuit, and the output terminal is connected with a second filtering circuit.

[0011] Preferably, the touch control module is connected with an operation indication circuit for indicating the operation state of the touch control module.

[0012] Preferably, the touch control module is also connected with a programming interface circuit.

[0013] Compared with the prior art, the present running light control circuit has the following advantages: the on and off of the light is realized through touch control, and the brightness and color temperature of the light are adjusted by touching the touch area; the circuit principle is simple, stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is the principle block diagram of the touch control circuit of the lighting lamp in the embodiment.

[0015] Figure 2 is the circuit diagram of the control part of the touch control circuit of the lighting lamp in the embodiment.

[0016] Figure 3 is the circuit diagram of the LED lamp driving module of the touch control circuit of the lighting lamp in the embodiment.

[0017] In the figure, 1 is the power circuit module; 1a is the 2V power input terminal; 1b is the 12V to 5V circuit; 1c is the first filter circuit; 1d is the 5V to 3V circuit; 1e is the first reverse connection prevention circuit; 1f is the second reverse connection prevention circuit; 1g is the second filter circuit; 2 is the touch detection module; 2a is the touch capacitor; 2b is the touch resistor; 3 is the touch control module; 4 is the LED lamp driving module; 5 is the white light lamp group; 6 is the warm light lamp group; 7 is the operation indication circuit; 8 is the programming interface circuit. Detailed implementation manners

[0018] The following are specific embodiments of the present invention and, in conjunction with the accompanying drawings, further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0019] As Figures 1-3 shown, the present invention provides a touch control circuit for a lighting lamp, including a power circuit module 1, a touch detection module 2, a touch control module 3, and an LED lamp driving module 4. The power circuit module 1 is used to supply power to the touch detection module 2, the touch control module 3, and the LED lamp driving module 4. The touch detection module 2 is connected to the input end of the touch control module 3, and the output end of the touch control module 3 is connected to the LED lamp driving module 4. The touch control module 3 outputs corresponding control signals to the LED lamp driving module 4 according to the electrical signals transmitted by the touch detection module 2, and the LED lamp driving module 4 drives the LED lamp group connected thereto to execute corresponding switching, brightness, and power conditions according to the control signals.

[0020] Specifically, the touch detection module 2 includes a touch capacitor 2a and a plurality of touch resistors 2b. In this embodiment, the touch capacitor 2a is capacitor CAP1. The first end of the capacitor CAP1 is connected to the touch signal input end of the touch control module 3, and the second end is grounded. The plurality of touch resistors 2b are sequentially R14 - R21, arranged in sequence to form a touch area, and each touch resistor 2b is respectively connected to the touch control module 3 for triggering touch control signals. The touch area can be in the shape of a long strip or a circular ring, etc., which is convenient for layout and use, and can be specifically designed according to actual needs.

[0021] In an embodiment of the present utility model, there are two LED lamp driving modules 4, which are respectively connected to the white light lamp group 5 and the warm light lamp group 6. By respectively controlling the two LED lamp driving modules 4 to control the white light lamp group 5 and the warm light lamp group 6 respectively, the brightness adjustment and color temperature adjustment of the combined lamp group are realized. The first LED lamp driving module 4 includes resistors R6 - R9, a driving chip U2 and a MOS transistor Q2, where the model of the driving chip U2 is EG27517. The first ends of the resistor R6 and the resistor R7 are connected to the control signal output end of the touch control module 3, the second end of the resistor R6 is grounded, the second end of the resistor R7 is connected to the input pin IN+ of the driving chip U2, the power supply pin VDD of the driving chip U2 is connected to the 12V power supply input end, the power supply input pin IN- and the ground pin GND of the driving chip U2 are both grounded, the output pin OUT of the driving chip U2 is respectively connected to the first ends of the resistor R8 and the resistor R9, the second end of the resistor R8 is grounded, the second end of the resistor R9 is connected to the gate G of the MOS transistor Q2, the source S of the MOS transistor Q2 is grounded, and the drain D of the MOS transistor is used to connect to the white light lamp group 5. The second LED lamp driving module 4 includes resistors R10 - R13, a driving chip U3 and a MOS transistor Q3, where the model of the driving chip U3 is also EG27517. Correspondingly, the drain D of the MOS transistor Q3 is used to connect to the warm light lamp. The circuit connection mode of the second LED lamp driving module 4 and the first LED lamp driving module 4 is the same, so it will not be described in detail.

[0022] The power supply circuit module 1 includes a 12V power input terminal 1a, a 12V-to-5V circuit 1b, a first filter circuit 1c, and a 5V-to-3V circuit 1d. The 12V power input terminal 1a is respectively connected to the 12V-to-5V circuit 1b and the LED lamp driving module 4. The output terminal of the 12V-to-5V circuit 1b is connected to the first filter circuit 1c. The output terminal of the first filter circuit 1c is connected to the 5V-to-3V circuit 1d. The 5V-to-3V circuit 1d is connected to the input terminal of the touch control module 3. Specifically, the 12V-to-5V circuit 1b includes a resistor R1 and a voltage regulator chip U5. The 12V power input terminal 1a is connected to the first end of the resistor R1. The second end of the resistor R1 is respectively connected to the LED lamp driving module 4 and the input pin VIN of the voltage regulator chip U5. The ground pin ND of the voltage regulator chip U5 is grounded, and the output pin VOUT outputs 5V voltage to the lower-level circuit. The 12V power input terminal 1a is connected to a first reverse connection prevention circuit 1e. The first reverse connection prevention circuit 1e includes a capacitor C4 and a transient voltage suppression diode U4 connected in parallel. The positive electrode of the transient voltage suppression diode U4 is grounded, and the negative electrode of the transient voltage suppression diode U4 is respectively connected to the 12V-to-5V circuit 1b. The 5V-to-3V circuit 1d includes a voltage regulator chip Q1. The input pin VIN of the voltage regulator chip Q1 is connected to the output pin VOUT of the voltage regulator chip U5. The output pin VOUT of the voltage regulator chip Q1 is connected to the power input pin VDD of the touch control module 3. The ground pin GND of the voltage regulator chip Q1 is grounded. The first filter circuit 1c is composed of capacitors C1 - C4 connected in parallel. In this embodiment, the voltage regulator chip U5 is AMS1117 - 5.0V, the voltage regulator chip Q1 is AMS1117 - 3.3V, and the transient voltage suppression diode U4 is SMF12V.

[0023] A second reverse connection prevention circuit 1f is connected to the input end of the 5V-to-3V circuit 1d, and a second filter circuit 1g is connected to the output end. The second reverse connection prevention circuit 1f includes a transient voltage suppression diode D1, and its model is SMF5.0A. The second filter circuit 1g is composed of capacitors C5 - C8 connected in parallel.

[0024] The touch control module 3 is connected to an operation indication circuit 7 for indicating the operation state of the touch control module 3. The operation indication circuit 7 is implemented by an LED lamp. One end of the LED lamp is connected to the 3.3V power input, and the other end is connected to the P0.0 pin of the touch control module 3. In addition, a programming interface circuit 8 is also connected to the touch control module 3.

[0025] In another embodiment of the present invention, there is one LED lamp driving module 4. The specific circuit of the LED lamp driving module 4 is the same as the above, and will not be described in detail again. The LED lamp driving module 4 is used to connect to the white light lamp group 5 or the warm light lamp group 6, and the brightness condition of the single white light lamp group 5 / single warm light lamp group 6 can be controlled through the LED lamp driving module 4.

[0026] The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art to which the present utility model pertains may make various modifications or supplements to the described specific embodiments or use similar means for substitution, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. A touch control circuit for an illumination lamp, comprising a power circuit module (1), a touch detection module (2), a touch control module (3) and an LED lamp driving module (4), wherein the power circuit module (1) is used to supply power to the touch detection module (2), the touch control module (3) and the LED lamp driving module (4), and is characterized in that: The touch detection module (2) is connected to the input end of the touch control module (3); the output end of the touch control module (3) is connected to the LED lamp driving module (4); the touch detection module (2) comprises a touch capacitor (2a) and a plurality of touch resistors (2b); the touch capacitor (2a) is used to adjust the touch sensitivity; the plurality of touch resistors (2b) are arranged in sequence to form a touch area and each touch resistor (2b) is respectively connected to the touch control module (3) for triggering a touch control signal; the touch control module (3) outputs a corresponding control signal to the LED lamp driving module (4) according to the electrical signal transmitted by the touch detection module (2); the LED lamp driving module (4) drives the LED lamp group connected thereto to perform corresponding switching, brightness and color temperature adjustment according to the control signal.

2. The touch control circuit of a lighting lamp according to claim 1, characterized in that: The LED lamp driving module (4) has one LED lamp driving module (4), and the LED lamp driving module (4) is used to connect to a white light lamp group (5) or a warm light lamp group (6).

3. The touch control circuit of a lighting lamp according to claim 1, characterized in that: There are two LED lamp driving modules (4), which are respectively connected to the white light lamp group (5) and the warm light lamp group (6).

4. A touch control circuit for a lighting lamp according to claim 1, 2 or 3, characterized in that: The power circuit module (1) comprises a 12V power input terminal (1a), a 12V to 5V circuit (1b), a filter circuit and a 5V to 3V circuit (1d); the 12V power input terminal (1a) is respectively connected to the 12V to 5V circuit (1b) and the LED lamp driving module (4); the output terminal of the 12V to 5V circuit (1b) is connected to a first filter circuit (1c); the output terminal of the first filter circuit (1c) is connected to a 5V to 3V circuit (1d); and the 5V to 3V circuit (1d) is connected to an input terminal of a touch control module (3).

5. The touch control circuit of a lighting lamp according to claim 4, characterized in that: The 12V power supply input end (1a) is connected to a first anti-reverse connection circuit (1e), and the output end of the first anti-reverse connection circuit (1e) is respectively connected to a 12V to 5V circuit (1b) and an LED lamp driving module (4).

6. The touch control circuit of a lighting lamp according to claim 5, characterized in that: The input end of the 5V to 3V circuit (1d) is connected to a second anti-reverse connection circuit (1f), and the output end is connected to a second filter circuit (1g).

7. A touch control circuit for an illuminating lamp according to claim 1, 2 or 3, characterized in that: The touch control module (3) is connected to an operation indication circuit (7) for indicating the operation status of the touch control module (3).

8. A touch control circuit for a lighting lamp according to claim 1, 2 or 3, characterized in that: The touch control module (3) is also connected to a burning interface circuit (8).

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