CN219181722U

CN219181722U - Electrodeless color temperature adjusting circuit

Info

Publication number: CN219181722U
Application number: CN202222620157.7U
Authority: CN
Inventors: 吴勇杰; 高涛
Original assignee: Xiamen Topstar Lighting Co Ltd
Current assignee: Xiamen Topstar Lighting Co Ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-06-13
Anticipated expiration: 2032-09-30

Abstract

The utility model relates to the technical field of color temperature adjustment, in particular to an electrodeless color temperature adjusting circuit, which comprises a low-color temperature LED module, a high-color temperature LED module and a current distribution module, wherein the low-color temperature LED module is respectively and electrically connected with the high-color temperature LED module, the current distribution module and a peripheral dimming module, the current distribution module is respectively and electrically connected with the high-color temperature LED module and the peripheral dimming module, and the current of the low-color temperature LED module and the high-color temperature LED module is changed through the current distribution module to realize the brightness of different LED modules, so that the combination of different color temperatures is finally realized, and the selection requirements of users are enriched.

Description

Electrodeless color temperature adjusting circuit

Technical Field

The utility model relates to the technical field of color temperature adjustment, in particular to an electrodeless color temperature adjusting circuit.

Background

The dial switch on the existing lamp body can only realize the selection of five color temperatures at most, and can not realize the selection requirement of more color temperatures; in addition, in the existing design, the color temperature conversion is generally realized through a circuit combined by MCU and other devices, and the price is relatively high.

Disclosure of Invention

In order to overcome the defects in the prior art, the technical problems to be solved by the utility model are as follows: the electrodeless color temperature regulating circuit is provided, and the electrodeless color temperature regulating function is realized, so that the selection requirements of users are enriched.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the electrodeless color temperature adjusting circuit comprises a low-color temperature LED module, a high-color temperature LED module and a current distribution module, wherein the low-color temperature LED module is respectively and electrically connected with the high-color temperature LED module, the current distribution module and a peripheral dimming module, and the current distribution module is respectively and electrically connected with the high-color temperature LED module and the peripheral dimming module.

Further, the current distribution module comprises a rheostat R7, a first end of the rheostat R7 is electrically connected with the low-color-temperature LED module, a second end of the rheostat R7 is electrically connected with the high-color-temperature LED module, and a third end of the rheostat R7 is electrically connected with the peripheral dimming module.

Further, the low color temperature LED module includes more than two first light emitting diodes connected in series, one ends of the more than two first light emitting diodes connected in series are respectively electrically connected with the high color temperature LED module and the peripheral dimming module, and the other ends of the more than two first light emitting diodes connected in series are electrically connected with the current distribution module.

Further, the high color temperature LED module includes more than two second light emitting diodes connected in series, one ends of the more than two second light emitting diodes connected in series are respectively electrically connected with the low color temperature LED module and the peripheral dimming module, and the other ends of the more than two second light emitting diodes connected in series are electrically connected with the current distribution module.

The utility model has the beneficial effects that:

through setting up low colour temperature LED module, high colour temperature LED module and electric current distribution module, low colour temperature LED module is connected with high colour temperature LED module, electric current distribution module and peripheral hardware's module electricity of adjusting luminance respectively, and electric current distribution module is connected with high colour temperature LED module and peripheral hardware's module electricity of adjusting luminance respectively, realizes the luminance of different LED modules through electric current distribution module change low colour temperature LED module and high colour temperature LED module, finally realizes the combination into different colour temperatures to enrich user's selection demand.

Drawings

FIG. 1 is a block diagram showing a modular connection of an electrodeless color temperature circuit in accordance with the present utility model;

FIG. 2 is a schematic diagram of an electrodeless color temperature regulating circuit in accordance with the present utility model;

description of the reference numerals:

1. a low color temperature LED module; 2. a high color temperature LED module; 3. a current distribution module; 4. and a dimming module.

Detailed Description

In order to describe the technical contents, the achieved objects and effects of the present utility model in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.

Referring to fig. 1, the present utility model provides the following technical solutions:

From the above description, the beneficial effects of the utility model are as follows:

As can be seen from the above description, when the third end of the resistor R7 slides left and right, the resistance values of the resistor connected in series to the low color temperature LED module and the high color temperature LED module can be changed, so that the currents flowing through the low color temperature LED module and the high color temperature LED module can be changed to realize the brightness of different LED modules, and finally, the combination of different color temperatures can be realized.

Referring to fig. 1 and 2, a first embodiment of the present utility model is as follows:

referring to fig. 1, an electrodeless color temperature adjusting circuit comprises a low color temperature LED module 1, a high color temperature LED module 2 and a current distribution module 3, wherein the low color temperature LED module 1 is electrically connected with the high color temperature LED module 2, the current distribution module 3 and a peripheral dimming module 4 respectively, and the current distribution module 3 is electrically connected with the high color temperature LED module 2 and the peripheral dimming module 4 respectively.

Referring to fig. 2, the current distribution module 3 includes a varistor R7 (which may be a sliding varistor or a rotary varistor, and has a resistance value of 100-500 Ω), a first end of the varistor R7 is electrically connected to the low-color-temperature LED module 1, a second end of the varistor R7 is electrically connected to the high-color-temperature LED module 2, and a third end of the varistor R7 is electrically connected to the peripheral dimming module 4.

Referring to fig. 2, the low color temperature LED module 1 includes more than two first LEDs connected in series, one ends of the more than two first LEDs connected in series are respectively electrically connected with the high color temperature LED module 2 and the peripheral dimming module 4, and the other ends of the more than two first LEDs connected in series are electrically connected with the current distribution module 3. The low-color temperature LED module 1 is a circuit formed by a plurality of low-color temperature LED light sources with consistent color temperature, and the circuit can be connected in series, in parallel or in series-parallel.

Referring to fig. 2, the high color temperature LED module 2 includes more than two second light emitting diodes connected in series, one ends of the more than two second light emitting diodes connected in series are respectively electrically connected with the low color temperature LED module 1 and the peripheral dimming module 4, and the other ends of the more than two second light emitting diodes connected in series are electrically connected with the current distribution module 3. The high-color temperature LED module 2 is a circuit formed by a plurality of high-color temperature LED light sources with consistent color temperatures, and the circuit can be connected in series, in parallel or in series-parallel.

Referring to fig. 2, the dimming module 4 includes a diode D1 (model ES 1J), a fuse resistor F1 (with a resistance value of 3.3-33Ω), a rectifier bridge BD (model MB 10F), a resistor R1 (with a resistance value of 1-2mΩ), a resistor R2 (with a resistance value of 500 Ω -2kΩ), a resistor R3 (with a resistance value of 1-33Ω), a resistor R4 (with a resistance value of 1-20Ω), a resistor R5 (with a resistance value of 100-500kΩ), a resistor R6 (with a resistance value of 33-100kΩ), a capacitor E1 (with a capacitance value of 15-68 μf), and a chip IC1 (with a model BP 5178), and the specific connection relationships among the components are shown in fig. 2.

The working principle of the electrodeless color temperature regulating circuit is as follows:

when the third end of the resistor R7 slides or rotates left and right, the resistance values of the resistor connected in series to the low color temperature LED module 1 and the high color temperature LED module 2 can be changed, so that the currents flowing through the low color temperature LED module 1 and the high color temperature LED module 2 are changed to realize the brightness of different LED modules, and finally, the combination of different color temperatures is realized.

LN alternating current mains supply is input, and is rectified into a direct current signal through a rectifier bridge BD, wherein a third pin of the rectifier bridge BD is an anode, a fourth pin of the rectifier bridge BD is a cathode (commonly called ground), and the anode of the rectifier bridge BD outputs to a Triac pin of a chip IC1 through a resistor R1 for detecting a dimmer;

the positive output of the rectifier bridge BD is connected to the Vin pin of the chip IC1 through a resistor R2, so as to provide a zero-crossing maintaining current for the dimmer, and ensure that the dimmer is not restarted to cause the lamp to flash;

the positive output of the rectifier bridge BD supplies current to the LED load through a diode D1, the current is input through the VD pin of the chip IC1, the capacitor E1 is arranged at two ends of the LED load to provide voltage stabilizing effect for the LED load, the resistor R6 is a dummy load, and a discharge loop is provided for the capacitor E1;

the CS1 pin of the chip IC1 is a dimmer current peak value detection pin and is used for limiting the maximum value of the dimmer current, and the current R3 is a string current R4 and provides detection voltage for the CS1 pin;

the CS2 pin of the chip IC1 is an LED current peak value detection pin and is used for limiting the maximum value of the LED current, and the resistor R4 is used for providing detection voltage for the CS2 pin;

the fourth pin of the ground bridge BD of the chip IC1 provides a complete loop for the whole current.

In summary, according to the electrodeless color temperature adjusting circuit provided by the utility model, by arranging the low-color temperature LED module, the high-color temperature LED module and the current distribution module, the low-color temperature LED module is respectively and electrically connected with the high-color temperature LED module, the current distribution module and the peripheral dimming module, the current distribution module is respectively and electrically connected with the high-color temperature LED module and the peripheral dimming module, and the current of the low-color temperature LED module and the high-color temperature LED module is changed through the current distribution module to realize the brightness of different LED modules, so that the combination into different color temperatures is finally realized, and the selection requirements of users are enriched.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.

Claims

1. The electrodeless color temperature adjusting circuit is characterized by comprising a low-color temperature LED module, a high-color temperature LED module and a current distribution module, wherein the low-color temperature LED module is respectively and electrically connected with the high-color temperature LED module, the current distribution module and a peripheral dimming module, and the current distribution module is respectively and electrically connected with the high-color temperature LED module and the peripheral dimming module.

2. The electrodeless color temperature regulating circuit as defined in claim 1, wherein the current distribution module comprises a varistor R7, a first end of the varistor R7 is electrically connected with the low color temperature LED module, a second end of the varistor R7 is electrically connected with the high color temperature LED module, and a third end of the varistor R7 is electrically connected with the peripheral dimming module.

3. The electrodeless color temperature regulating circuit as defined in claim 1, wherein the low color temperature LED module comprises more than two first light emitting diodes connected in series, one ends of the more than two first light emitting diodes connected in series are respectively electrically connected with the high color temperature LED module and the peripheral dimming module, and the other ends of the more than two first light emitting diodes connected in series are electrically connected with the current distribution module.

4. The electrodeless color temperature regulating circuit as defined in claim 1, wherein the high color temperature LED module comprises more than two second light emitting diodes connected in series, one ends of the more than two second light emitting diodes connected in series are respectively electrically connected with the low color temperature LED module and the peripheral dimming module, and the other ends of the more than two second light emitting diodes connected in series are electrically connected with the current distribution module.