CN210202128U - LED lamp control circuit and LED lamp - Google Patents
LED lamp control circuit and LED lamp Download PDFInfo
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- CN210202128U CN210202128U CN201920277853.8U CN201920277853U CN210202128U CN 210202128 U CN210202128 U CN 210202128U CN 201920277853 U CN201920277853 U CN 201920277853U CN 210202128 U CN210202128 U CN 210202128U
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Abstract
The utility model provides a LED lamp control circuit, add the first LED light source module that is used for the illumination of colored lamp, a second LED light source module that is used for white light illumination and adjusts the colour temperature, and two LED light source modules independently supply power, so realize the regulation of colour temperature through the electric current of control second LED light source module, do not need first LED light source module to participate in the colour temperature regulation, the luminous flux and the color rendering index of having guaranteed every colour temperature section keep unanimous, when the regulation colour temperature that exists among the solution traditional technical scheme, the luminous flux and the color rendering index of every colour temperature section can't keep unanimous problem.
Description
Technical Field
The utility model belongs to the technical field of the LED control, especially, relate to a LED lamp control circuit and LED lamp.
Background
At present, the conventional LED dimming and color-mixing lamp usually adopts three colors of RGB (Red, Green, Blue) to synthesize white light, so that it cannot be ensured that the luminous flux of each color temperature segment is consistent and the color rendering index cannot be kept consistent when the color temperature is adjusted at 2200-.
Therefore, the conventional technical scheme has the problem that the luminous flux and the color rendering index of each color temperature section cannot be kept consistent when the color temperature is adjusted.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the utility model provides a LED lamp control circuit and LED lamp aims at solving the regulation colour temperature that exists among the traditional technical scheme, and luminous flux and the color rendering index of every colour temperature section can't keep unanimous problem.
The utility model provides a first aspect of the embodiment provides a LED lamp control circuit, include: the first LED light source module is used for colored light illumination; the second LED light source module is used for white light illumination and color temperature adjustment; the signal module is used for outputting a control signal for controlling the current according to the received control instruction; the rectifying module is used for accessing alternating current and outputting direct current; the power input end of the first power module is connected with the output end of the rectification module, the control end of the first power module is connected with the signal module, the power output end of the first power module is connected with the first LED light source module, and the first power module is used for controlling and adjusting the current output to the first LED light source module according to the control signal so as to adjust the light emitting color of the first LED light source module; and the power input end of the second power module is connected with the output end of the rectification module, the control end of the second power module is connected with the signal module, the output end of the second power module is connected with the second LED light source module, and the second power module is used for controlling and adjusting the current output to the second LED light source module according to the control signal so as to adjust the color temperature of the second LED light source module.
In one embodiment, the first LED light source module includes a red LED group, a green LED group, and a blue LED group, wherein anodes of the red LED group, the green LED group, and the blue LED group are commonly connected to the power output terminal of the first power module, a cathode of the red LED group is connected to the first signal output terminal of the first power module, a cathode of the green LED group is connected to the second signal output terminal of the first power module, and a cathode of the blue LED group is connected to the third signal output terminal of the first power module.
In one embodiment, the second LED light source module includes at least one white light emitting diode group, an anode of each white light emitting diode group is connected to the power output terminal of the second power module, and a cathode of each white light emitting diode group is connected to each signal output terminal of the second power module.
In one embodiment, the signal module includes a radio frequency transceiver chip and an antenna, the antenna is connected to the radio frequency transceiver chip, the antenna is configured to receive a control instruction, and the radio frequency transceiver chip is configured to output a control signal for controlling the magnitude of the current according to the control instruction.
In one embodiment, the first power module includes an LED power chip.
In one embodiment, the second power module includes an analog dimming driving chip.
In one embodiment, the LED lamp control circuit further includes a driving module, the first power module is connected to the first LED light source module through the driving module, and the driving module is configured to adjust a current of the first LED light source module.
In one embodiment, the driving module comprises a constant current LED driving chip.
A second aspect of the embodiments of the present invention provides an LED lamp, comprising the LED lamp control circuit of any one of claims 1 to 8.
In one embodiment, the LED lamp further includes a bulb case, a lamp cap, and a heat dissipation member, the LED lamp control circuit is disposed inside the bulb case, and the LED lamp control circuit and the heat dissipation member are disposed opposite to each other.
The LED lamp control circuit is added with the first LED light source module for color lamp illumination, the second LED light source module for white light illumination and color temperature adjustment, and the two LED light source modules are independently powered, so that the color temperature adjustment is realized by controlling the current of the second LED light source module, the first LED light source module is not needed to participate in the color temperature adjustment, the light flux and the color rendering index of each color temperature section are ensured to be kept consistent, and the problem that the light flux and the color rendering index of each color temperature section cannot be kept consistent when the color temperature is adjusted in the traditional technical scheme is solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic circuit diagram of an LED lamp control circuit according to an embodiment of the present invention;
FIG. 2 is an exemplary circuit schematic of a first LED light source module in the LED lamp control circuit of FIG. 1;
FIG. 3 is an exemplary circuit schematic of a second LED light source module in the LED lamp control circuit of FIG. 1;
FIG. 4 is an exemplary circuit schematic of a first power module in the LED lamp control circuit of FIG. 1;
FIG. 5 is an exemplary circuit schematic of a second power module in the LED lamp control circuit of FIG. 1;
fig. 6 is another schematic circuit diagram of an LED lamp control circuit according to an embodiment of the present invention;
fig. 7 is an exemplary circuit schematic of a driver module in the LED lamp control circuit of fig. 6;
fig. 8 is a schematic circuit diagram of an LED lamp according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, a circuit schematic diagram of an LED lamp control circuit according to a first aspect of the present invention is shown, for convenience of description, only the relevant portions of the embodiment are shown, and detailed descriptions are as follows:
the LED lamp control circuit of this embodiment includes: the LED light source module comprises a first LED light source module 100, a second LED light source module 200, a signal module 300, a rectification module 400, a first power supply module 500 and a second power supply module 600, wherein a power supply input end of the first power supply module 500 is connected with an output end of the rectification module 400, a control end of the first power supply module 500 is connected with the signal module 300, a power supply output end of the first power supply module 500 is connected with the first LED light source module 100, a power supply input end of the second power supply module 600 is connected with an output end of the rectification module 400, a control end of the second power supply module 600 is connected with the signal module 300, and an output end of the second power supply module 600 is connected with the second LED light source module 200; the first LED light source module 100 is used for color light illumination, the second LED light source module 200 is used for adjusting color temperature, the signal module 300 is configured to output a control signal for controlling the magnitude of current according to a received instruction, the rectifier module 400 is configured to access ac and output dc, the first power source module 500 is configured to adjust the current output to the first LED light source module 100 to adjust the light emitting color thereof according to the control signal, and the second power source module 600 is configured to adjust the current output to the second LED light source module 200 to adjust the color temperature thereof according to the control signal.
It should be understood that the power of the signal module 300 may be supplied by an external power source, the first power module 500 or the second power module 600, and the signal module 300 may output a plurality of control signals, the number of which is equal to or different from the number of control signals required by the first LED light source module 100 and the second LED light source module 200.
It should be understood that the first LED light source module 100 may be formed by combining light emitting diodes of three primary colors of RGB; the second LED light source module 200 may be formed by combining white light emitting diodes; the signal module 300 may be formed by a chip or an integrated circuit, such as a radio frequency transceiver chip, a single chip, etc., which receives a control instruction and outputs a control signal; the rectification module 400 may be formed of an integrated circuit or a chip having a rectification function, such as a full-bridge rectification circuit, a half-bridge rectification circuit, or the like; the first power module 500 may be formed of a chip or an integrated circuit, such as a DC-DC conversion chip or an LED power chip, which converts an input voltage and current into a predetermined voltage and current and outputs the voltage and current; the second power module 600 may be formed of a chip or an integrated circuit, for example, a DC-DC conversion chip, an LED power chip, or the like, which converts an input voltage and current into a predetermined voltage and current and outputs the voltage and current.
It should be understood that the control signal may be a pulse signal, a level signal, or the like.
The LED lamp control circuit in this implementation adds the first LED light source module 100 that is used for the illumination of colored lamp, the second LED light source module 200 that is used for white light illumination and regulation colour temperature, and two LED light source modules supply power independently, so realize the regulation of colour temperature through the electric current of control second LED light source module 200, do not need first LED light source module 100 to participate in the colour temperature regulation, the luminous flux and the color rendering index of having guaranteed every colour temperature section keep unanimous, when solving the regulation colour temperature that exists among the traditional technical scheme, the luminous flux and the color rendering index of every colour temperature section can't keep unanimous problem.
Referring to fig. 2, in an embodiment, the first LED light source module 100 includes a red LED group 110, a green LED group 120, and a blue LED group 130, wherein an anode of the red LED group 110, an anode of the green LED group 120, and an anode of the blue LED group 130 are commonly connected to a power output terminal of the first power module 500, a cathode of the red LED group 110 is connected to a first signal output terminal of the first power module 500, a cathode of the green LED group 120 is connected to a second signal output terminal of the first power module 500, and a cathode of the blue LED group 130 is connected to a third signal output terminal of the first power module 500.
It should be understood that, in the present embodiment, the first LED light source module 100 includes the red LED group 110, the green LED group 120, and the blue LED group 1303, so that the signal module 300 outputs 3 control signals to the first power module 500 for controlling the current of the first LED light source module 100.
It is to be understood that the red led group 110 includes at least one red led, each of which is connected in series, the green led group 120 includes at least one green led, each of which is connected in series, the blue led group 130 includes at least one blue led, each of which is connected in series, in the present embodiment, the red light emitting diode group 110 includes two red light emitting diodes D1 and D2, the green light emitting diode group 120 includes two green light emitting diodes D3 and D4, the blue light emitting diode group 130 includes two blue light emitting diodes D5 and D6, in other embodiments, the red led group 110 may include one or more red leds, the green led group 120 may include one or more green leds, and the blue led group 130 may include one or more blue leds.
Referring to fig. 3, in an embodiment, the second LED light source module 200 includes at least one white light emitting diode group, an anode of each white light emitting diode group is connected to the power output terminal of the second power module 600, and a cathode of each white light emitting diode group is connected to each signal output terminal of the second power module 600.
It should be understood that in this embodiment, the second LED light source module 200 includes two white light emitting diode sets 210 and 220, the white light emitting diode set 210 includes white light emitting diodes D7 and D8, the white light emitting diode set 220 includes white light emitting diodes D9 and D10, the signal module 300 outputs two control signals to the second power module 600 for controlling the current of the second LED light source module 200, in other embodiments, the second LED light source module 200 may also include one or more white light emitting diode sets, and the signal module 300 outputs one control signal or multiple control signals to the second power module 600 for controlling the current of the second LED light source module 200.
It is to be understood that each white light emitting diode group may include at least one white light emitting diode.
In one embodiment, the signal module 300 includes an rf transceiver chip and an antenna, where the antenna is connected to the rf transceiver chip, the antenna is configured to receive the control command, and the rf transceiver chip is configured to output a control signal for controlling the current according to the control command.
It should be understood that in the present embodiment, the type of the rf transceiver chip is EFR32MG1, and in other embodiments, the rf transceiver chip may also be another type of chip.
Referring to fig. 4, in one embodiment, the first power module 500 includes an LED power chip U1.
It should be understood that, in the present embodiment, the model number of the LED power chip U1 is SY5018, and in other embodiments, the LED power chip U1 may also be other models of chips.
Referring to fig. 5, in one embodiment, the second power module 600 includes an analog dimming driving chip U2.
It should be understood that in the present embodiment, the model of the analog dimming driving chip U2 is BP2306X, and in other embodiments, the analog dimming driving chip U2 may also be another model of chip.
Referring to fig. 6, in an embodiment, the LED lighting device further includes a driving module 700, the first power module 500 is connected to the first LED lighting module 100 through the driving module 700, and the driving module 700 is used to adjust a current of the first LED lighting module 100.
It should be understood that, in the present embodiment, the driving module 700 is added to drive the first power module 500 with a constant current, so that the first power module 500 can adjust the light emitting color thereof more precisely and controllably without affecting the luminous flux and the color rendering index of each color temperature segment.
It is to be understood that the driving module 700 may be constituted by a driving chip having a constant current control.
Referring to fig. 7, in one embodiment, the driving module 700 includes a constant current LED driving chip U3.
In this embodiment, the constant current LED driving chip U3 has a chip model of SM1533E, and in other embodiments, the constant current LED driving chip U3 may also adopt other models, for example, when the first power module 500 includes N groups of light emitting diodes, the constant current LED driving chip U3 may adopt an N-channel constant current LED driving chip.
A second aspect of the present embodiment provides an LED lamp including the LED lamp control circuit described above.
Referring to fig. 8, in an embodiment, the LED lighting device further includes a bulb 20, a lamp head 30 and a heat sink 40, the LED lamp control circuit 10 is disposed inside the bulb 20, the LED lamp control circuit 10 is disposed opposite to the heat sink 40, and the lamp head 30 is electrically connected to an external ac power source.
It should be understood that the LED lamp control circuit 10 and the heat dissipation member 40 may be disposed opposite to each other, and the heat dissipation member 40 may be disposed on the upper surface or the lower surface of the circuit board of the LED lamp control circuit 10, or the LED lamp control circuit 10 may be disposed in an inner cavity defined by the heat dissipation member 40.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. An LED lamp control circuit, comprising:
the first LED light source module is used for colored light illumination;
the second LED light source module is used for white light illumination and color temperature adjustment;
the signal module is used for outputting a control signal for controlling the current according to the received control instruction;
the rectifying module is used for accessing alternating current and outputting direct current;
the power input end of the first power module is connected with the output end of the rectification module, the control end of the first power module is connected with the signal module, the power output end of the first power module is connected with the first LED light source module, and the first power module is used for controlling and adjusting the current output to the first LED light source module according to the control signal so as to adjust the light emitting color of the first LED light source module; and
the power input end of the second power module is connected with the output end of the rectification module, the control end of the second power module is connected with the signal module, the output end of the second power module is connected with the second LED light source module, and the second power module is used for controlling, adjusting and outputting current to the second LED light source module according to the control signal so as to adjust the color temperature of the current.
2. The LED lamp control circuit of claim 1, wherein the first LED light source module comprises a red LED group, a green LED group, and a blue LED group, wherein an anode of the red LED group, an anode of the green LED group, and an anode of the blue LED group are connected to the power output terminal of the first power module, a cathode of the red LED group is connected to the first signal output terminal of the first power module, a cathode of the green LED group is connected to the second signal output terminal of the first power module, and a cathode of the blue LED group is connected to the third signal output terminal of the first power module.
3. The LED lamp control circuit of claim 1, wherein the second LED light source module comprises at least one white LED group, an anode of each white LED group is connected to the power output terminal of the second power module, and a cathode of each white LED group is connected to the signal output terminal of the second power module.
4. The LED lamp control circuit according to claim 1, wherein the signal module comprises a radio frequency transceiver chip and an antenna, the antenna is connected to the radio frequency transceiver chip, the antenna is configured to receive a control command, and the radio frequency transceiver chip is configured to output a control signal for controlling the current according to the control command.
5. The LED lamp control circuit of claim 1, wherein the first power module comprises an LED power chip.
6. The LED lamp control circuit of claim 1, wherein the second power module comprises an analog dimming driver chip.
7. The LED lamp control circuit of claim 1, further comprising a driver module, wherein the first power module is connected to the first LED light source module through the driver module, and the driver module is configured to regulate a current of the first LED light source module.
8. The LED lamp control circuit according to claim 7, wherein the driving module comprises a constant current LED driving chip.
9. An LED lamp comprising the LED lamp control circuit of any one of claims 1 to 8.
10. The LED lamp of claim 9, further comprising a lamp envelope, a lamp cap, and a heat sink, the LED lamp control circuit disposed within the lamp envelope, the LED lamp control circuit disposed opposite the heat sink.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920277853.8U CN210202128U (en) | 2019-03-05 | 2019-03-05 | LED lamp control circuit and LED lamp |
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| CN201920277853.8U CN210202128U (en) | 2019-03-05 | 2019-03-05 | LED lamp control circuit and LED lamp |
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| CN210202128U true CN210202128U (en) | 2020-03-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114258179A (en) * | 2021-12-23 | 2022-03-29 | 欧普照明股份有限公司 | Lamp and lamp control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114258179A (en) * | 2021-12-23 | 2022-03-29 | 欧普照明股份有限公司 | Lamp and lamp control method |
| CN114258179B (en) * | 2021-12-23 | 2024-03-29 | 欧普照明股份有限公司 | Lamp and lamp control method |
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