Knob control circuit of illuminating lamp

Abstract

The utility model provides a knob control circuit of an illuminating lamp, which comprises a power supply circuit module, a knob switch module, a control module and an LED lamp driving module, the power supply circuit module is used for supplying power to the knob switch module, the control module and the LED lamp driving module, and the knob control circuit is characterized in that the knob switch module is connected with the input end of the control module; the output end of the control module is connected with the LED lamp driving module, the knob switch module is an encoder, the encoder outputs forward rotation, overturning and pressing signals to the control module, and the control module outputs corresponding control signals to the LED lamp driving module according to the received three signals. And the LED lamp driving module drives the LED lamp group connected with the LED lamp driving module to execute corresponding on-off and color temperature adjustment according to the control signal. The control circuit is convenient to control, simple, stable and reliable.

Description

Technical Field

[0001] This utility model relates to the technical field of lighting control, and particularly to a rotary 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 demands for intelligent and energy-saving switches.

[0003] Existing LED lamps usually do not have the function of adjusting light, including adjusting the intensity and color temperature of light. 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 simple above-mentioned 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 rotary control circuit for a lighting lamp, which realizes the switching, brightness and color temperature control of the lighting lamp through a rotary knob.

[0005] The purpose of this utility model can be achieved by the following technical solutions: A rotary control circuit for a lighting lamp includes a power supply circuit module, a rotary switch module, a control module and an LED lamp driving module. The power supply circuit module is used to supply power to the rotary switch module, the control module and the LED lamp driving module. It is characterized in that the rotary switch module is connected to the input end of the control module, the output end of the control module is connected to the LED lamp driving module, the rotary switch module is an encoder, the encoder outputs three signals of forward rotation, reverse rotation and pressing to the control module, the control module outputs corresponding control signals to the LED lamp driving module according to the three received signals, and the LED lamp driving module drives the LED lamp group connected thereto to perform corresponding lighting and extinguishing and color temperature adjustment according to the control signals.

[0006] Preferably, the power supply circuit module includes a 24V power input terminal, a 24V to 12V circuit, and a 24V to 5V circuit. The 24V power input terminal is respectively connected to the input ends of the 24V to 12V circuit and the 24V to 5V circuit. The 12V voltage output by the 24V to 12V circuit is respectively supplied to each LED lamp driving module. The 5V voltage output by the 24V to 5V circuit is respectively supplied to the rotary switch module and the control module.

[0007] Preferably, the 24V power input terminal is connected with a first filtering circuit, the output end of the 24V to 12V circuit is connected with a second filtering circuit, and the output end of the 24V to 5V circuit is connected with a third filtering circuit.

[0008] Preferably, there is at least one LED lamp driving module, and each LED lamp driving module is connected to an LED lamp group of one hue. When there is only one LED lamp driving module, the brightness adjustment of the monochromatic lamp group can be controlled by this LED lamp driving module.

[0009] Preferably, there are three LED lamp driving modules, which are respectively connected to the LED lamp groups of R, G, and B hues. By respectively controlling two LED lamp driving modules 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.

[0010] Preferably, the LED lamp driving module includes a first instruction input terminal, a second instruction input terminal, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a first triode, a second triode, a third triode, and a MOS field effect transistor; the first instruction input terminal receives the first instruction issued by the control module and sends it to the base of the first triode through the first resistor, the collector of the first triode is respectively connected to one end of the second resistor and one end of the third resistor, the other end of the second resistor is connected to the 12V voltage input, the other end of the third resistor is connected to the base of the second triode, the emitter of the second triode is connected to the 12V input, the collector of the second triode is respectively connected to one end of the fifth resistor, one end of the sixth resistor, and the collector of the third triode, the second instruction input terminal receives the second instruction issued by the control module and sends it to the base of the third triode through the fourth resistor, the other end of the fourth resistor is connected to the gate of the MOS field effect transistor, the drain of the MOS field effect transistor is connected to the LED lamp group, and the emitter of the first triode, the emitter of the third triode, the other end of the fifth resistor, and the source of the MOS field effect transistor are all grounded.

[0011] Preferably, the control module is connected with a first indication circuit for indicating the operation state of the knob switch module.

[0012] Preferably, the control module is connected with a second indication circuit for indicating the instruction output state of the control module.

[0013] Preferably, the control module is further connected with a programming interface circuit.

[0014] Compared with the prior art, the present utility model has the following advantages: The on and off of the light is realized through the knob switch, and the brightness and color temperature of the light are adjusted by rotating or pressing operations; the control of R, G, and B three-color lights can also be realized, and the corresponding brightness and color temperature adjustments are carried out; the circuit principle is simple, stable and reliable. Description of the Drawings

[0015] Figure 1 It is a schematic block diagram of the knob control circuit of the lighting lamp in the embodiment.

[0016] Figure 2 It is a circuit diagram of the control part of the knob control circuit of the lighting lamp in the embodiment.

[0017] Figure 3 It is a circuit diagram of the LED lamp driving module of the knob control circuit of the lighting lamp in the embodiment.

[0018] In the figure, 1 is the power supply circuit module; 1a is the 24V power input terminal; 1b is the 24V to 12V circuit; 1c is the 24V to 5V circuit; 1d is the first filter circuit; 1e is the second filter circuit; 1f is the third filter circuit; 2 is the knob switch module; 3 is the control module; 4 is the first LED lamp driving module; 5 is the second LED lamp driving module; 6 is the third LED lamp driving module; 7 is the first indication circuit; 8 is the second indication circuit; 9 is the programming interface circuit. Specific embodiments

[0019] The following are specific embodiments of the present invention and in combination with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.

[0020] As Figures 1-3 shown, the present invention provides a knob control circuit for a lighting lamp, including a power supply circuit module 1, a knob switch module 2, a control module 3 and an LED lamp driving module. The power supply circuit module 1 is used to supply power to the knob switch module 2, the control module 3 and the LED lamp driving module. The knob switch module 2 is connected to the input end of the control module 3, and the output end of the control module 3 is connected to the LED lamp driving module. The knob switch module 2 is an encoder, and the encoder outputs three signals of forward rotation, reverse rotation and pressing to the control module 3. The control module 3 outputs corresponding control signals to the LED lamp driving module according to the three received signals. The LED lamp driving module drives the LED lamp group connected thereto to perform corresponding lighting and color temperature adjustment according to the control signal. In this embodiment, the forward rotation and reverse rotation signals of the encoder are determined by the A phase and the B phase respectively, and the pressing signal is determined by the KEY path output. The number of times and duration of the signals triggered by the KEY path signal represent the switching of different modules. The control module 3 realizes the control of different modes of the LED lamp driving module according to the signals output by the A phase, B phase and KEY path of the encoder. It should be noted that the meanings represented by the number of times and duration of the signals output by the KEY path can be preset in the control module 3 in advance. For example, a single press can represent on / off; two consecutive presses represent mode switching, and a long continuous press represents the selection of different LED lamp driving modules, etc., which can be freely set by the user. This process is a conventional use process of the encoder setting.

[0021] Specifically, the power supply circuit module 1 includes a 24V power input terminal 1a, a 24V to 12V circuit 1b, and a 24V to 5V circuit 1c. The 24V power input terminal is respectively connected to the input terminals of the 24V to 12V circuit 1b and the 24V to 5V circuit 1c. The 12V voltage output by the 24V to 12V circuit 1b is respectively supplied to each LED lamp driving module, and the 5V voltage output by the 24V to 5V circuit 1c is respectively supplied to the knob switch module 2 and the control module 3. The first filter circuit 1d is composed of capacitors U2, C4, C11, and C12 in parallel, which effectively filters the power supply voltage input by the 24V power input terminal 1a to ensure the stability of the input power supply voltage. The 24V to 12V circuit 1b is implemented by a voltage regulator chip CJ78L12, and its output terminal is connected to the second filter circuit 1e, which is composed of capacitors C9 and C10 in parallel. The 24V to 5V circuit 1c is implemented by a voltage regulator chip 78L05. The third filter circuit 1f is composed of capacitors C13, C1, C2, and C3 in parallel.

[0022] In this embodiment, there are three LED lamp driving modules. The first LED lamp driving module 4 is correspondingly connected to the LED lamp group of the R color tone, the second LED lamp driving module 5 is correspondingly connected to the LED lamp group of the G color tone, and the third LED lamp driving module 6 is correspondingly connected to the LED lamp group of the B color tone. By respectively controlling the three LED lamp driving modules, the brightness adjustment and color temperature adjustment of the RGB three-color combined lamp group are realized. As Figure 3, taking the first LED lamp driving module 4 as an example for detailed description. The first LED lamp driving module 4 includes: resistors R3, R4, R5, R9, R10, R24; triodes Q3, Q5, Q9; and MOS transistor Q2. One end of resistor R3 serves as the input end of the first command MOS_POUT1, and the other end is connected to the base of triode Q5. The collector of triode Q5 is respectively connected to one ends of resistor R9 and resistor R10. The other end of resistor R9 is connected to the 12V input, and the other end of resistor R10 is connected to the base of triode Q3. The emitter of triode Q3 is connected to the 12V input, and the collector is respectively connected to one end of resistor R5, one end of resistor R4, and the collector of triode Q9. One end of resistor R24 serves as the input end of the second command MOS_NOUT1, and the other end is connected to the base of triode Q9. The other end of resistor R5 is connected to the gate of MOS field effect transistor Q2, and the drain of MOS field effect transistor Q2 is connected to the corresponding color LED lamp group. The emitters of triode Q5 and triode Q9 are both grounded, the other end of resistor R4 is grounded, and the source of MOS field effect transistor Q2 is grounded. The second LED lamp driving module 5 includes: resistors R11, R12, R13, R14, R15, R25; triodes Q7, Q8, Q10; and MOS transistor Q6. The third LED lamp driving module 6 includes: resistors R26, R27, R28, R29, R30, R31; triodes Q12, Q13, Q14; and MOS transistor Q11. Since the circuit connection modes of the second LED lamp driving module 5, the third LED lamp driving module 6 and the first LED lamp driving module 5 are the same, they will not be described in detail.

[0023] In addition, it should be noted that in other embodiments of the present invention, the LED lamp driving module can be only one or two, etc., and the specific quantity can be flexibly adjusted according to actual requirements.

[0024] The control module 3 adopts a controller U1 with the model of STC8H1K08-36I-TSSOP20. Its three pairs of output pins MOS_NOUT1 / MOS_POUT1, MOS_NOUT2 / MOS_POUT2 and MOS_NOUT3 / MOS_POUT3 respectively correspond to the three pairs of command input ends of the three LED lamp driving modules. The control module 3 is connected with a second indication circuit 7 for indicating the operation state of the knob switch module 2. This second indication circuit 7 is realized by the series connection of LED lamp RIN1 and resistor R7. One end of this LED lamp RIN1 is connected to the 5V power input, and the other end is connected to the RUN_LED pin of the control module 3. Further, the control module 3 is also connected with a second indication circuit 8 for indicating the command output state of the control module 3. This second indication circuit 8 is realized by the series connection of LED lamp OUT1 and resistor R36. One end of this LED lamp OUT1 is connected to the 5V power input, and the other end is connected to the OUT1_LED pin of the control module 3.

[0025] In addition, a programming interface circuit 9 is also connected to the control module 3 for downloading the programmed program into the flash memory of the single-chip microcomputer so that it can be executed.

[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 can make various modifications or supplements to the described specific embodiments or use similar ways of 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 knob control circuit for a lighting lamp, comprising a power circuit module (1), a knob switch module (2), a control module (3) and an LED lamp driving module, wherein the power circuit module (1) is used to supply power to the knob switch module (2), the control module (3) and the LED lamp driving module, and wherein: The knob switch module (2) is connected to the input end of the control module (3), and the output end of the control module (3) is connected to the LED lamp driving module. The knob switch module (2) is an encoder, and the encoder outputs three signals of forward rotation, reverse rotation and pressing to the control module (3). The control module (3) outputs corresponding control signals to the LED lamp driving module according to the received three signals, and the LED lamp driving module drives the LED lamp group connected thereto to perform corresponding on and off and color temperature adjustment according to the control signals.

2. The knob control circuit of a lighting lamp according to claim 1, characterized in that: The power circuit module (1) comprises a 24V power input terminal (1a), a 24V to 12V circuit (1b), and a 24V to 5V circuit (1c); the 24V power input terminal (1a) is respectively connected to the input terminals of the 24V to 12V circuit (1b) and the 24V to 5V circuit (1c); the 12V voltage output by the 24V to 12V circuit (1b) is respectively transmitted to each LED lamp driving module; and the 5V voltage output by the 24V to 5V circuit (1c) is respectively transmitted to the knob switch module (2) and the control module (3).

3. The knob control circuit of a lighting lamp according to claim 2, characterized in that: The 24V power supply input end (1a) is connected to a first filter circuit (1d), the 24V to 12V circuit (1b) output end is connected to a second filter circuit (1e), and the 24V to 5V circuit (1c) output end is connected to a third filter circuit (1f).

4. A knob control circuit for a lighting lamp according to claim 1, 2 or 3, characterized in that: There is at least one LED lamp driving module, and each LED lamp driving module is connected to an LED lamp group of a certain color tone.

5. The knob control circuit of a lighting lamp according to claim 4, characterized in that: There are three LED lamp driving modules, the first LED lamp driving module (4) corresponds to the LED lamp group with R tone, the second LED lamp driving module (5) corresponds to the LED lamp group with G tone, and the third LED lamp driving module (6) corresponds to the LED lamp group with B tone.

6. The knob control circuit of a lighting lamp according to claim 5, characterized in that: The LED lamp driving module comprises a first instruction input end, a second instruction input end, a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a first transistor, a second transistor, a third transistor and a MOS field effect transistor; the first instruction input end receives a first instruction issued by the control module (3) and sends it to the base of the first transistor through the first resistor; the collector of the first transistor is respectively connected to one end of the second resistor and one end of the third resistor; the other end of the second resistor is connected to a 12V voltage input; the other end of the third resistor is connected to the base of the second transistor; the emitter of the second transistor is connected to the 12V input; the collector of the second transistor is respectively connected to one end of the fifth resistor, one end of the sixth resistor and the collector of the third transistor; the second instruction input end receives a second instruction issued by the control module (3) and sends it to the base of the third transistor through the fourth resistor; the other end of the fourth resistor is connected to the gate of the MOS field effect transistor; the drain of the MOS field effect transistor is connected to the LED lamp driving module; The lamp group, the emitter of the first transistor, the emitter of the third transistor, the other end of the fifth resistor and the source of the MOS field effect tube are all grounded.

7. A knob control circuit for a lighting lamp according to claim 1, 2 or 3, characterized in that: The control module (3) is connected to a first indication circuit (7) for indicating the operating state of the knob switch module (2).

8. The knob control circuit of a lighting lamp according to claim 7, characterized in that: The control module (3) is connected to a second indicating circuit (8) for indicating the command output state of the control module (3).

9. The knob control circuit of a lighting lamp according to claim 1, 2 or 3, characterized in that: The control module (3) is also connected to a burning interface circuit (9).

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