Control circuit for realizing color temperature switching and wall-controlled dimming and color modulation by utilizing toggle switch

Abstract

The utility model provides a control circuit for realizing color temperature switching and wall-controlled dimming and color modulation by using a toggle switch. The control circuit comprises a power control circuit, a color temperature switching circuit, a wall switch detection and control circuit, an LED light source and a toggle switch control circuit, the wall switch detection and control circuit outputs a first control signal to the power control circuit to adjust the brightness of the LED light source, and the wall switch detection and control circuit outputs a second control signal to the color temperature switching circuit to switch the color temperature of the LED light source; when the toggle switch control circuit is switched to a first gear, the first control signal and the second control signal are pulled up to a high level state at the same time; when the toggle switch control circuit is switched to a second gear, the first control signal is pulled up to a high level state, and the second control signal is pulled down to a low level state; and when the toggle switch control circuit is switched to a third gear, the toggle switch control circuit is vacant, and the first control signal and the second control signal are output by the wall switch detection and control circuit.

Description

Technical Field

[0001] The utility model relates to the field of lighting, and particularly to switch switching. Background Art

[0002] At present, many lighting fixture products use toggle switches to achieve switching between different color temperatures, and many also use wall switches to achieve diverse dimming and color mixing functions. However, there is no means to combine these two functions to meet different needs of people. Summary of the Utility Model

[0003] The main technical problem to be solved by the utility model is to provide a control circuit that can not only meet the needs of some customers for simple single-color temperature selection, but also meet the needs of some customers for diverse dimming and color mixing functions.

[0004] To solve the above technical problems, the utility model provides a control circuit for using a toggle switch to achieve color temperature switching and wall control dimming and color mixing, including: a power control circuit, a color temperature switching circuit, a wall switch detection and control circuit, an LED light source, and a toggle switch control circuit;

[0005] The wall switch detection and control circuit outputs a first control signal to the power control circuit to adjust the brightness of the LED light source, and the wall switch detection and control circuit outputs a second control signal to the color temperature switching circuit to switch the color temperature of the LED light source;

[0006] When the toggle switch control circuit switches to the first gear, the first control signal and the second control signal are simultaneously pulled high to the high level state; when the toggle switch control circuit switches to the second gear, the first control signal is pulled high to the high level state, and the second control signal is pulled low to the low level state; when the toggle switch control circuit switches to the third gear, the toggle switch control circuit is vacant, and the first control signal and the second control signal are output by the wall switch detection and control circuit.

[0007] In a preferred embodiment: the toggle switch control circuit includes a toggle switch S1, resistors R1, R2, R3, and a switching transistor Q1;

[0008] The 2nd and 6th terminals of the toggle switch are connected in parallel to VCC; the 1st and 3rd terminals are connected to PWM1; the 5th terminal is connected to PWM2; the 7th terminal is connected to the switching transistor control circuit.

[0009] In a preferred embodiment: the 7th terminal of the toggle switch is grounded through series-connected resistors R1 and R2; it is also grounded through series-connected resistors R3 and the switching transistor Q1; the control electrode of the switching transistor Q1 is connected to the common terminal of resistors R1 and R2.

[0010] In a preferred embodiment: The switching transistor Q1 is a thyristor.

[0011] The present utility model also provides a control circuit for realizing color temperature switching and wall control dimming and color mixing by using a toggle switch, including: a dimming and color mixing circuit, a wall switch detection and control circuit, an LED light source, and a toggle switch control circuit;

[0012] The wall switch detection and control circuit outputs a first control signal to the dimming and color mixing circuit to adjust the brightness of the LED light source, and the wall switch detection and control circuit outputs a second control signal to the dimming and color mixing circuit to switch the color temperature of the LED light source;

[0013] When the toggle switch control circuit switches to the first gear, the first control signal and the second control signal are simultaneously pulled high to the high level state; when the toggle switch control circuit switches to the second gear, the first control signal is pulled high to the high level state, and the second control signal is pulled low to the low level state; when the toggle switch control circuit switches to the third gear, the toggle switch control circuit is vacant, and the first control signal and the second control signal are output by the wall switch detection and control circuit.

[0014] In a preferred embodiment: The toggle switch control circuit includes a toggle switch S1, resistors R1, R2, R3, and a switching transistor Q1;

[0015] The 2nd and 6th terminals of the toggle switch are connected in parallel to VCC; the 1st and 3rd terminals are connected to PWM1; the 5th terminal is connected to PWM2; the 7th terminal is connected to the switching transistor control circuit.

[0016] In a preferred embodiment: The 7th terminal of the toggle switch is grounded through the series-connected resistors R1 and R2; it is also grounded through the series-connected resistors R3 and the switching transistor Q1; the control electrode of the switching transistor Q1 is connected to the common terminal of the resistors R1 and R2.

[0017] In a preferred embodiment: The switching transistor Q1 is a thyristor.

[0018] Compared with the prior art, the technical solution of the present utility model has the following beneficial effects:

[0019] The present utility model provides a control circuit for realizing color temperature switching and wall control dimming and color mixing by using a toggle switch. A toggle switch control circuit is added on the basis of the wall switch dimming and color mixing circuit, and the high and low level switching of the PWM signal is controlled by the gear of the toggle switch to realize the selection of fixed color temperature control and wall switch control. Description of the Drawings

[0020] Figure 1 It is the circuit diagram of the preferred embodiment 1 of the present utility model;

[0021] Figure 2 This is the circuit diagram of the preferred embodiment 2 of the present utility model. Detailed implementation manners

[0022] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model; obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0023] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "provided with", "sheathed / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a wall-mounted connection, a detachable connection, or an integral connection, can be a mechanical connection, an electrical connection, can be directly connected, or can be indirectly connected through an intermediate medium, and can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0025] Embodiment 1

[0026] Referring to Figure 1 , this embodiment provides a control circuit for realizing color temperature switching and wall control for dimming and color mixing by using a toggle switch, including: a power control circuit, a color temperature switching circuit, a wall switch detection and control circuit, an LED light source, and a toggle switch control circuit; except for the toggle switch control circuit, the rest is a typical wall switch control circuit for dimming and color mixing. After adding the toggle switch control circuit, fixed color temperature control and wall switch control can be selected.

[0027] The wall switch detection and control circuit outputs a first control signal to the power control circuit to adjust the brightness of the LED light source, and the wall switch detection and control circuit outputs a second control signal to the color temperature switching circuit to switch the color temperature of the LED light source; in this embodiment, the first control signal is PWM1, and the second control signal is PWM2. The wall switch detection and control circuit can output PWM1 and PWM2 signals with different duty cycles by detecting the state of the wall switch, realizing the functions of dimming and color adjustment.

[0028] When the toggle switch control circuit switches to the first gear, the first control signal and the second control signal are simultaneously pulled high to the high level state; when the toggle switch control circuit switches to the second gear, the first control signal is pulled high to the high level state, and the second control signal is pulled low to the low level state; when the toggle switch control circuit switches to the third gear, the toggle switch control circuit is vacant, and the first control signal and the second control signal are output by the wall switch detection and control circuit.

[0029] Specifically, the toggle switch control circuit includes a toggle switch S1, resistors R1, R2, R3, and a switching transistor Q1; the 2nd and 6th terminals of the toggle switch are connected in parallel to VCC; the 1st and 3rd terminals are connected to PWM1; the 5th terminal is connected to PWM2; the 7th terminal is connected to the switching transistor control circuit. The 7th terminal of the toggle switch is grounded through the series-connected resistors R1 and R2; it is also grounded through the series-connected resistor R3 and the switching transistor Q1; the control electrode of the switching transistor Q1 is connected to the common terminal of the resistors R1 and R2. The switching transistor Q1 is a thyristor.

[0030] Specific implementation process:

[0031] In the first gear (the leftmost of the toggle switch), the common pole VCC is conducted with 1 and 5, that is, PWM1 and PWM2 are connected to VCC. PWM1 is forced to be at a high level to control the main circuit for full power, and PWM2 is forced to be at a high level to control one group of color temperatures to work. At this time, one group of color temperatures is controlled to work at full power.

[0032] In the second gear (the toggle switch is in the middle), the common pole VCC is conducted with 3 and 7, that is, PWM1 is connected to VCC, and PWM1 is still forced to be at a high level to control the main circuit for full power. After VCC is connected to 7, the switching transistor (a thyristor in this example) will be conducted and grounded, and PWM2 is forced to be pulled low to a low level. At this time, the other group of color temperatures is controlled to work at full power.

[0033] In the third gear (the rightmost of the toggle switch), 4 and 8 are vacant, and the circuit returns to the previous wall switch control state. At this time, if the wall switch is continuously turned off and on, it is the preset dimming and color adjustment function.

[0034] The above process realizes the switching between different conventional color temperatures with the gear switching of the toggle switch and also realizes the function of full wall switch control by toggling one of the gears.

[0035] Embodiment 2

[0036] Reference Figure 2 , the difference between this embodiment and Embodiment 1 is that the power control circuit and the color temperature switching circuit in Embodiment 1 are integrated into a dimming and color mixing circuit. Specifically, a control circuit that uses a toggle switch to switch the color temperature and control wall dimming and color mixing includes: a dimming and color mixing circuit, a wall switch detection and control circuit, an LED light source, and a toggle switch control circuit; the wall switch detection and control circuit outputs a first control signal to the dimming and color mixing circuit to adjust the brightness of the LED light source, and the wall switch detection and control circuit outputs a second control signal to the dimming and color mixing circuit to switch the color temperature of the LED light source. The rest is the same as Embodiment 1 and will not be elaborated here.

[0037] As mentioned above, the above are only the preferred specific embodiments of the present invention, but the design concept of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention who makes non-substantive modifications to the present invention using this concept shall fall within the scope of infringement of the protection of the present invention.

Claims

1. A control circuit for realizing color temperature switching and wall control for dimming and color mixing by using a toggle switch, characterized in that Comprising: A power control circuit, a color temperature switching circuit, a wall switch detection and control circuit, an LED light source, and a toggle switch control circuit; The wall switch detection and control circuit outputs a first control signal to the power control circuit to adjust the brightness of the LED light source, and the wall switch detection and control circuit outputs a second control signal to the color temperature switching circuit to switch the color temperature of the LED light source; When the toggle switch control circuit switches to the first gear, the first control signal and the second control signal are simultaneously pulled high to the high level state; when the toggle switch control circuit switches to the second gear, the first control signal is pulled high to the high level state, and the second control signal is pulled low to the low level state; when the toggle switch control circuit switches to the third gear, the toggle switch control circuit is vacant, and the first control signal and the second control signal are output by the wall switch detection and control circuit.

2. The control circuit for realizing color temperature switching and wall control dimming and color mixing by using a toggle switch according to claim 1, characterized in that: The toggle switch control circuit includes a toggle switch S1, resistors R1, R2, R3, and a switching transistor Q1; The 2nd and 6th terminals of the toggle switch are connected in parallel to VCC; the 1st and 3rd terminals are connected to PWM1; the 5th terminal is connected to PWM2; the 7th terminal is connected to the switching transistor control circuit.

3. The control circuit for realizing color temperature switching and wall control dimming and color mixing by using a toggle switch according to claim 2, characterized in that: The 7th terminal of the toggle switch is grounded through the serially connected resistors R1 and R2; it is also grounded through the serially connected resistor R3 and the switching transistor Q1; the control electrode of the switching transistor Q1 is connected to the common terminal of the resistors R1 and R2.

4. The control circuit for realizing color temperature switching and wall control dimming and color mixing by using a toggle switch according to claim 2, characterized in that: The switching transistor Q1 is a thyristor or other transistor.

5. A control circuit that uses a toggle switch to achieve color temperature switching and wall control for dimming and color adjustment, characterized in that Comprising: A dimming and color mixing circuit, a wall switch detection and control circuit, an LED light source, and a toggle switch control circuit; The wall switch detection and control circuit outputs a first control signal to the dimming and color mixing circuit to adjust the brightness of the LED light source, and the wall switch detection and control circuit outputs a second control signal to the dimming and color mixing circuit to switch the color temperature of the LED light source; When the toggle switch control circuit switches to the first gear, the first control signal and the second control signal are simultaneously pulled high to the high level state; when the toggle switch control circuit switches to the second gear, the first control signal is pulled high to the high level state, and the second control signal is pulled low to the low level state; when the toggle switch control circuit switches to the third gear, the toggle switch control circuit is vacant, and the first control signal and the second control signal are output by the wall switch detection and control circuit.

6. The control circuit for realizing color temperature switching and wall control dimming and color mixing by using a toggle switch according to claim 5, characterized in that: The toggle switch control circuit includes a toggle switch S1, resistors R1, R2, R3, and a switching transistor Q1; The 2nd and 6th terminals of the toggle switch are connected in parallel to VCC; the 1st and 3rd terminals are connected to PWM1; the 5th terminal is connected to PWM2; the 7th terminal is connected to the switching transistor control circuit.

7. The control circuit for realizing color temperature switching and wall control dimming and color mixing by using a toggle switch according to claim 6, wherein: The 7th terminal of the toggle switch is grounded through the serially connected resistors R1 and R2; it is also grounded through the serially connected resistor R3 and the switching transistor Q1; the control electrode of the switching transistor Q1 is connected to the common terminal of the resistors R1 and R2.

8. The control circuit for realizing color temperature switching and wall control dimming and color adjustment by using a toggle switch according to claim 6, characterized in that: The switching transistor Q1 is a thyristor or other transistor.

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