CN210247114U - LED lamp and LED lamp circuit thereof - Google Patents
LED lamp and LED lamp circuit thereof Download PDFInfo
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- CN210247114U CN210247114U CN201920865588.5U CN201920865588U CN210247114U CN 210247114 U CN210247114 U CN 210247114U CN 201920865588 U CN201920865588 U CN 201920865588U CN 210247114 U CN210247114 U CN 210247114U
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Abstract
The application discloses LED lamps and lanterns and LED lamp circuit thereof, this LED lamp circuit includes: the LED lamp comprises a rectifier, a white light emitting circuit, a color light emitting circuit, a high-voltage DC-DC converter and a control circuit; the white light emitting circuit comprises a white light constant current LED driver and a white light LED lamp bead array which are connected in series, wherein the white light LED lamp bead array comprises a plurality of white light LED lamp bead strings which are connected in parallel and have different color temperature values, and control switches which are respectively connected in series corresponding to the white light LED lamp bead strings; the color light emitting circuit is connected with the output end of the high-voltage DC-DC converter; and the power supply end of the control circuit is connected with the output end of the high-voltage DC-DC converter and used for outputting corresponding dimming signals to each control switch. The color temperature output range of the white light emitting circuit can be effectively expanded, the power required to be output by the color light LED lamp bead string is reduced, and then the power consumption and the cost are reduced, and the product integration is facilitated.
Description
Technical Field
The application relates to the technical field of LED driving, in particular to an LED lamp and an LED lamp circuit thereof.
Background
The LED (light Emitting diode) lamp is an electroluminescent semiconductor material chip, is solidified on a bracket by silver glue or white glue, then is connected with the chip and a circuit board by silver wires or gold wires, is sealed by epoxy resin at the periphery to play a role in protecting an internal core wire, and is finally provided with a shell. At present, the LED lamp is widely applied to daily work and life of people due to the excellent performances of energy conservation and long service life.
The LED lamp bead is a light-emitting element in the LED lamp. Different kinds of LED lamp beads can send different wavelengths, namely, different colors of light. When the LED lamp is driven, the brightness of the lamp light can be adjusted, and the color temperature of the lamp light can be adjusted. The white light LED lamp bead string used in the LED dimming scheme in the prior art generally has only one color temperature value, and on the basis of the color temperature value of the white light LED lamp bead string, the total color temperature is adjusted by lighting the color light LED lamp bead strings of other colors so as to obtain the target color temperature required by a user. Due to the fact that target color temperatures required by users are different greatly in different application scenes, for example, people generally use white light to read books, and light before sleeping is used to use yellow light. Therefore, when the actual required light total color temperature of a user and the color temperature value of the white light LED lamp bead string are different greatly, the output power of the colored light LED lamp bead string needs to be correspondingly improved, a high-power model needs to be selected, and the product integration and the cost saving are not facilitated.
In view of the above, it is an important need for those skilled in the art to provide a solution to the above technical problems.
SUMMERY OF THE UTILITY MODEL
An object of this application is to provide a LED lamps and lanterns and LED lamp circuit thereof to effectively expand the colour temperature output range of white light LED lamp pearl cluster, reduce the luminous power of glory LED lamp pearl cluster, thereby can choose the glory LED lamp pearl cluster of miniwatt model for use, effectively reduce consumption and cost and be convenient for product integration.
In order to solve the above technical problem, in a first aspect, the present application discloses an LED lamp circuit, which includes a rectifier, a white light emitting circuit, a color light emitting circuit, a high voltage DC-DC converter, and a control circuit;
the white light emitting circuit comprises a white light constant current LED driver and a white light LED lamp bead array which are connected in series, wherein the white light LED lamp bead array comprises a plurality of white light LED lamp bead strings which are connected in parallel and have different color temperature values, and control switches which are respectively connected in series corresponding to the white light LED lamp bead strings; each white light LED lamp bead string comprises a plurality of white light LED lamp beads with the same color temperature value;
the rectifier is used for rectifying the input alternating current to output high-voltage direct current; the input end of the high-voltage DC-DC converter is connected with the output end of the rectifier and is used for converting the high-voltage direct current to output low-voltage direct current; the color light emitting circuit is connected with the output end of the high-voltage DC-DC converter; and the power supply end of the control circuit is connected with the output end of the high-voltage DC-DC converter and is used for outputting corresponding dimming signals to each control switch.
Optionally, the white light constant current LED driver is a high voltage DC-DC constant current LED driver;
the input end of the high-voltage DC-DC constant-current LED driver is connected with the output end of the rectifier, and the output end of the high-voltage DC-DC constant-current LED driver is connected with the first end of the white-light LED lamp bead array; and the second end of the white light LED lamp bead array is grounded.
Optionally, the first ends of the white light LED lamp bead strings are connected with each other to serve as the first end of the white light LED lamp bead array; the second end of each white light LED lamp bead string is respectively connected with the first end of the corresponding control switch; and the second ends of the control switches are connected with each other to serve as the second ends of the white light LED lamp bead array.
Optionally, the white light LED lamp bead array includes 2 white light LED lamp bead strings with different color temperature values connected in parallel;
the color temperature value of the first white light LED lamp bead string is 2700K, and the color temperature value of the second white light LED lamp bead string is 6500K.
Optionally, the color light emitting circuit includes a red LED light string, a green LED light string, a blue LED light string, and a three-way linear constant current LED driver;
the first ends of the red light LED lamp bead string, the green light LED lamp bead string and the blue light LED lamp bead string are all connected with the output end of the high-voltage DC-DC converter; and the second ends of the red light LED lamp bead string, the green light LED lamp bead string and the blue light LED lamp bead string are respectively connected to three driving ends of the three-way linear constant-current LED driver.
Optionally, a connection interface between the three-way linear constant-current LED driver and the control circuit includes any one or any combination of the following:
an I2C interface, an SPI interface and an IO interface.
Optionally, the control circuit includes a power conversion circuit and a control unit connected in sequence;
the power supply conversion circuit is used for carrying out voltage reduction and voltage stabilization conversion on the low-voltage direct current and outputting working voltage for supplying power to the control unit;
the control unit is integrated with a wireless module for receiving wireless instructions, and the control unit is used for outputting the dimming signals corresponding to the wireless instructions.
In a second aspect, the present application also discloses an LED lamp comprising any one of the LED lamp circuits described above.
The application provides an LED lamp circuit includes: the LED lamp comprises a rectifier, a white light emitting circuit, a color light emitting circuit, a high-voltage DC-DC converter and a control circuit; the white light emitting circuit comprises a white light constant current LED driver and a white light LED lamp bead array which are connected in series, wherein the white light LED lamp bead array comprises a plurality of white light LED lamp bead strings which are connected in parallel and have different color temperature values, and control switches which are respectively connected in series corresponding to the white light LED lamp bead strings; each white light LED lamp bead string comprises a plurality of white light LED lamp beads with the same color temperature value; the rectifier is used for rectifying the input alternating current to output high-voltage direct current; the input end of the high-voltage DC-DC converter is connected with the output end of the rectifier and is used for converting the high-voltage direct current to output low-voltage direct current; the color light emitting circuit is connected with the output end of the high-voltage DC-DC converter; and the power supply end of the control circuit is connected with the output end of the high-voltage DC-DC converter and is used for outputting corresponding dimming signals to each control switch.
This application is through setting up the white light LED lamp pearl cluster of multiple different colour temperature values in white light emitting circuit, can expand white light emitting circuit's colour temperature output range effectively, improves the colour temperature that white light emitting circuit exported and the proximity of user demand colour temperature to reduce the power that glory LED lamp pearl cluster needs to be exported, and then can choose the glory LED lamp pearl cluster of miniwatt model for use, effectively reduce system's consumption and cost. Meanwhile, the chip size of the low-power color LED lamp bead string is small, and product integration is facilitated. The LED lamp provided by the application also has the beneficial effects.
Drawings
In order to more clearly illustrate the technical solutions in the prior art and the embodiments of the present application, the drawings that are needed to be used in the description of the prior art and the embodiments of the present application will be briefly described below. Of course, the following description of the drawings related to the embodiments of the present application is only a part of the embodiments of the present application, and it will be obvious to those skilled in the art that other drawings can be obtained from the provided drawings without any creative effort, and the obtained other drawings also belong to the protection scope of the present application.
Fig. 1 is a structural diagram of an LED lamp circuit disclosed in an embodiment of the present application;
FIG. 2 is a block diagram of a specific LED lamp circuit disclosed in an embodiment of the present application;
fig. 3 is a structural diagram of a color light emitting circuit according to an embodiment of the present application.
Detailed Description
The core of the application lies in providing an LED lamps and lanterns and LED lamp circuit thereof to effectively expand the colour temperature output range of white light LED lamp pearl cluster, reduce the luminous power of glory LED lamp pearl cluster, thereby the glory LED lamp pearl cluster of miniwatt model can be chooseed for use, effectively reduce consumption and cost and be convenient for product integration.
In order to more clearly and completely describe the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
At present, when the drive LED lamp, white light LED lamp pearl cluster that the LED dimming scheme among the prior art used generally only has a colour temperature value, on white light LED lamp pearl cluster colour temperature value's basis, adjusts total colour temperature through the glory LED lamp pearl cluster of lighting other colours to acquire the required target colour temperature of user. Due to the fact that target color temperatures required by users are different greatly in different application scenes, for example, people generally use white light to read books, and light before sleeping is used to use yellow light. Therefore, when the actual required light total color temperature of a user and the color temperature value of the white light LED lamp bead string are different greatly, the output power of the colored light LED lamp bead string needs to be correspondingly improved, and the heating and power consumption are increased. In view of this, the present application provides an LED lamp circuit, which can effectively solve the above problems.
Referring to fig. 1, the embodiment of the application discloses an LED lamp circuit, which mainly includes a rectifier 1, a white light emitting circuit 2, a color light emitting circuit 3, a high-voltage DC-DC converter 4, and a control circuit 5;
the white light emitting circuit 2 comprises a white light constant current LED driver 21 and a white light LED lamp bead array 22 which are connected in series, wherein the white light LED lamp bead array 22 comprises a plurality of white light LED lamp bead strings which are connected in parallel and have different color temperature values, and control switches K which are respectively connected in series corresponding to the white light LED lamp bead strings; each white light LED lamp bead string comprises a plurality of white light LED lamp beads with the same color temperature value;
the rectifier 1 is used for rectifying input alternating current to output high-voltage direct current; the input end of the high-voltage DC-DC converter 4 is connected with the output end of the rectifier 1 and is used for converting high-voltage direct current to output low-voltage direct current; the color light emitting circuit 3 is connected with the output end of the high-voltage DC-DC converter 4; the power supply terminal of the control circuit 5 is connected to the output terminal of the high-voltage DC-DC converter 4 for outputting the corresponding dimming signal to each control switch K.
It should be noted that, in the LED lamp circuit provided in the embodiment of the present application, the white light emitting circuit 2 specifically includes a plurality of white light LED lamp bead strings with different color temperature values.
Among them, color temperature is a characteristic of visible light that has important applications in the fields of photography, video recording, and the like. The color temperature of a light source is determined by comparing its color to a theoretical thermal black body radiator. The kelvin temperature at which a thermal black body radiator matches the color of the light source is the color temperature of the light source, which is directly related to planck's black body radiation law.
It is well known that white light is actually a mixed light. The white lights with different color temperatures have different cold and warm feelings. The lower the color temperature is, the more red the color tone is, and the feeling of people is warm color tone; the higher the color temperature, the more bluish the hue, giving the impression of a cool hue.
Generally, the color temperature value of the warm white light is in the range of 2700K to 4000K, the whole light color effect gives people a warm, comfortable and healthy feeling, and the warm white light is suitable for being used in places such as families, dormitories, hotels, hospitals and the like. The light with the color temperature value of 4000K-6500K is generally white light, belongs to intermediate color, has softer light, presents a pleasant and comfortable feeling, and is used in places such as shops, waiting rooms, offices, hospitals, restaurants and the like. The color temperature of the cold white light is generally above 6500K, is bright, is the daylight color which enables people to concentrate, and is suitable for places such as classrooms, reading rooms, offices, drawing rooms, meeting rooms, design rooms, libraries and the like.
At present, white light LED lamp beads usually utilize blue light technology to cooperate with fluorescent powder to emit white light. By adjusting the proportion of each color component in the fluorescent powder, the color temperature value of the emitted white light can be changed, and therefore white light LED lamp beads with different color temperature values can be obtained.
It is easy to understand that a plurality of white light LED lamp beads with the same color temperature value are connected in series to form a white light LED lamp bead string. Because the color temperature value of each white light LED lamp bead is the same, the color temperature value is also the color temperature value of the white light LED lamp bead string.
It should be noted that, because there are many possibilities for the color temperature value of the light actually required by the user, and the color temperature value of the white LED bead string is fixed, in the LED lamp circuit provided in the embodiment of the present application, besides the white LED bead string, a color light emitting circuit 3 is further provided. The color light emitting circuit 3 may specifically include a color light LED lamp string and a corresponding driver, and the control circuit 5 is not only configured to send a dimming signal to the control switch K in the white light emitting circuit 2, but also configured to perform dimming control on the color light emitting circuit 3. The white light LED lamp bead string and the colored light LED lamp bead strings with other colors are lightened according to a certain proportion, and the final total color temperature can be adjusted to reach the expected color temperature of a user.
It is easy to understand that if the color temperature value of the white light LED bead string already meets the user requirement, the colored light LED bead string does not need to be lighted. Therefore, in order to fully utilize the white light LED lamp bead string, that is, to improve the output power of the white light LED lamp bead string and to reduce the output power of the color light LED lamp bead string, in the embodiment of the present application, a plurality of white light LED lamp bead strings with different color temperature values are provided at the output end of the white light constant current LED driver 21, and each white light LED lamp bead string is turned on and controlled by the control switch K connected in series with the white light LED lamp bead string, so as to form the white light LED lamp bead array 22.
Therefore, the more the types of the white light LED lamp bead strings are, the larger the range of the color temperature value output by the white light LED lamp bead array is, the higher the proximity degree of the color temperature output by the white light LED lamp bead array 22 and the color temperature required by a user is, correspondingly, the smaller the lumen value, namely the luminous flux, required to be output by the color light LED lamp bead strings is, and the lower-power model can be selected.
On this basis, as a specific embodiment, the control circuit 5 for sending the corresponding dimming signal to each control switch K may specifically include a power conversion circuit and a control unit connected in sequence;
the power supply conversion circuit is used for carrying out voltage reduction and voltage stabilization conversion on the low-voltage direct current and outputting working voltage for supplying power to the control unit; the control unit is integrated with a wireless module for receiving wireless instructions and is used for outputting dimming signals corresponding to the wireless instructions.
It should be noted that, the connection sequence between the white LED string and the corresponding control switch K is not further limited in the present application, and those skilled in the art can select and set the connection sequence according to the actual application situation.
The LED lamp circuit provided by the embodiment comprises a white light emitting circuit 2, a rectifier 1, a high-voltage DC-DC converter 4 and a control circuit 5; the white light emitting circuit 2 comprises a white light constant current LED driver 21 and a white light LED lamp bead array 22 which are connected in series, wherein the white light LED lamp bead array 22 comprises a plurality of white light LED lamp bead strings which are connected in parallel and have different color temperature values, and control switches K which are respectively connected in series corresponding to the white light LED lamp bead strings; each white light LED lamp bead string comprises a plurality of white light LED lamp beads with the same color temperature value; the rectifier 1 is used for rectifying input alternating current to output high-voltage direct current; the input end of the high-voltage DC-DC converter 4 is connected with the output end of the rectifier 1 and is used for converting high-voltage direct current to output low-voltage direct current; the power supply terminal of the control circuit 5 is connected to the output terminal of the high-voltage DC-DC converter 4 for outputting the corresponding dimming signal to each control switch K.
It is thus clear that this application can expand white light emitting circuit 2's colour temperature output range effectively through set up the white light LED lamp pearl cluster of multiple different colour temperature values in white light emitting circuit 2, improves the colour temperature that white light emitting circuit 2 output and the degree of closeness of user's demand colour temperature to reduce the power that colored light LED lamp pearl cluster needs to be exported, and then can choose the colored light LED lamp pearl cluster of miniwatt model for use, effectively reduce system's consumption and cost. Meanwhile, the chip size of the low-power color LED lamp bead string is small, and product integration is facilitated.
Referring to fig. 2, the embodiment of the application discloses a specific LED lamp circuit.
On the basis of the above, as a specific embodiment, in the LED lamp circuit provided in this embodiment, the white light constant current LED driver 21 is a high voltage DC-DC constant current LED driver;
the input end of the high-voltage DC-DC constant-current LED driver is connected with the output end of the rectifier 1, and the output end of the high-voltage DC-DC constant-current LED driver is connected with the first end of the white-light LED lamp bead array 22; the second end of the white light LED lamp bead array 22 is grounded.
It should be noted that drivers of LED light bead strings can be divided into two categories: the LED driver comprises a high-voltage DC-DC constant current LED driver working at high voltage and a linear constant current LED driver working at low voltage. Specifically, the linear constant-current LED driver needs to be used together with the high-voltage DC-DC converter 4, so that the efficiency is low, the power consumption is high, and the linear constant-current LED driver is suitable for a color-light LED lamp string with low power requirement; and the high-voltage DC-DC constant-current LED driver has higher driving efficiency and is suitable for the white-light LED lamp bead array 22. Therefore, the driving efficiency can be further effectively improved, and the system power consumption and heat generation can be further reduced.
Of course, a person skilled in the art may use a linear constant current LED driver operating at a low voltage as the white light constant current LED driver 21, which is not limited in this application.
On the basis of the above, further, the first ends of the white light LED lamp bead strings are connected with each other to serve as the first end of the white light LED lamp bead array 22; the second end of each white light LED lamp bead string is respectively connected with the first end of the corresponding control switch K; the second ends of the control switches K are connected with each other to serve as the second end of the white light LED lamp bead array 22.
As mentioned above, the connection position of the white LED string and the corresponding control switch K can be exchanged by those skilled in the art, which is not further limited in the present application.
On the basis of the above content, as a specific embodiment, in the LED lamp circuit provided in the embodiment of the present application, the white LED lamp bead array 22 may specifically include 2 white LED lamp bead strings connected in parallel and having different color temperature values;
the color temperature value of the first white light LED lamp bead string is 2700K, and the color temperature value of the second white light LED lamp bead string is 6500K.
Of course, those skilled in the art can also adjust the type of the white LED bead string and the color temperature value of each white LED bead string according to the actual application, which is not limited in the present application.
Referring to fig. 3, the embodiment of the present application discloses a circuit structure of a color light emitting circuit 3.
On the basis of the above content, as a specific implementation manner, in the LED lamp circuit provided in the embodiment of the present application, the color light emitting circuit 3 includes a red LED lamp string, a green LED lamp string, a blue LED lamp string, and a three-way linear constant current LED driver;
the first ends of the red light LED lamp bead string, the green light LED lamp bead string and the blue light LED lamp bead string are connected with the output end of the high-voltage DC-DC converter 4; and the second ends of the red light LED lamp bead string, the green light LED lamp bead string and the blue light LED lamp bead string are respectively connected to three driving ends of the three linear constant-current LED drivers.
Specifically, red, green and blue are three primary colors of color light, and the red light LED lamp bead string, the green light LED lamp bead string and the blue light LED lamp bead string can be matched with the white light LED lamp bead string to adjust the color temperature of white light, and can also be randomly mixed to obtain other color lights.
It should be noted that, in this embodiment, since the output power requirements of the color light emitting circuit 3 and the high-voltage DC-DC converter 4 are not high, the color light emitting circuit 3 can be driven by using a three-way linear constant-current LED driver in cooperation with the high-voltage DC-DC converter 4; as for the white light emitting circuit 2, as described above, a high voltage DC-DC constant current LED driver may be used for driving. The three-way linear constant-current LED driver is a linear constant-current LED driver with three-way output.
Further, the connection interface between the three-way linear constant-current LED driver and the control circuit 5 may specifically include any one or any combination of the following:
an I2C interface, an SPI interface and an IO interface.
Specifically, for the three-way linear constant-current LED driver, the dimming signal correspondingly adopted by the control circuit 5 may specifically be a PWM wave signal transmitted based on an IO interface, and may also specifically be a corresponding type of communication command signal transmitted based on an I2C interface or an SPI interface.
Further, the application also discloses an LED lamp comprising any one of the LED lamp circuits described above.
Therefore, the LED lamp disclosed by the application can effectively expand the color temperature output range of the white light emitting circuit 2 by arranging the white light LED lamp bead strings with various different color temperature values in the white light emitting circuit 2, improve the approach degree of the color temperature output by the white light emitting circuit 2 and the color temperature required by a user, so that the power required to be output by the color light LED lamp bead strings can be reduced, and then the color light LED lamp bead strings with low-power models can be selected for use, thereby effectively reducing the power consumption and the cost of the system. Meanwhile, the chip size of the low-power color LED lamp bead string is small, and product integration is facilitated.
For the specific content of the LED lamp, reference may be made to the foregoing detailed description of the LED lamp circuit, which is not repeated herein.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. For the equipment disclosed by the embodiment, the description is relatively simple because the equipment corresponds to the method disclosed by the embodiment, and the relevant parts can be referred to the method part for description.
It is further noted that, throughout this document, relational terms such as "first" and "second" are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The technical solutions provided by the present application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. It should be noted that, for those skilled in the art, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall into the protection scope of the present application.
Claims (8)
1. An LED lamp circuit is characterized by comprising a rectifier, a white light emitting circuit, a color light emitting circuit, a high-voltage DC-DC converter and a control circuit;
the white light emitting circuit comprises a white light constant current LED driver and a white light LED lamp bead array which are connected in series, wherein the white light LED lamp bead array comprises a plurality of white light LED lamp bead strings which are connected in parallel and have different color temperature values, and control switches which are respectively connected in series corresponding to the white light LED lamp bead strings; each white light LED lamp bead string comprises a plurality of white light LED lamp beads with the same color temperature value;
the rectifier is used for rectifying the input alternating current to output high-voltage direct current; the input end of the high-voltage DC-DC converter is connected with the output end of the rectifier and is used for converting the high-voltage direct current to output low-voltage direct current; the color light emitting circuit is connected with the output end of the high-voltage DC-DC converter; and the power supply end of the control circuit is connected with the output end of the high-voltage DC-DC converter and is used for outputting corresponding dimming signals to each control switch.
2. The LED lamp circuit according to claim 1, wherein the white light constant current LED driver is a high voltage DC-DC constant current LED driver;
the input end of the high-voltage DC-DC constant-current LED driver is connected with the output end of the rectifier, and the output end of the high-voltage DC-DC constant-current LED driver is connected with the first end of the white-light LED lamp bead array; and the second end of the white light LED lamp bead array is grounded.
3. The LED lamp circuit according to claim 2, wherein first ends of the respective strings of white LED lamps are connected to each other as first ends of the array of white LED lamps; the second end of each white light LED lamp bead string is respectively connected with the first end of the corresponding control switch; and the second ends of the control switches are connected with each other to serve as the second ends of the white light LED lamp bead array.
4. The LED lamp circuit according to claim 1, wherein the white LED lamp bead array comprises 2 white LED lamp bead strings with different color temperature values connected in parallel;
the color temperature value of the first white light LED lamp bead string is 2700K, and the color temperature value of the second white light LED lamp bead string is 6500K.
5. The LED lamp circuit according to claim 1, wherein the color light emitting circuit comprises a red LED lamp string, a green LED lamp string, a blue LED lamp string and a three-way linear constant current LED driver;
the first ends of the red light LED lamp bead string, the green light LED lamp bead string and the blue light LED lamp bead string are all connected with the output end of the high-voltage DC-DC converter; and the second ends of the red light LED lamp bead string, the green light LED lamp bead string and the blue light LED lamp bead string are respectively connected to three driving ends of the three-way linear constant-current LED driver.
6. The LED lamp circuit according to claim 5, wherein the connection interface of the three-way linear constant-current LED driver and the control circuit comprises any one or any combination of the following:
an I2C interface, an SPI interface and an IO interface.
7. The LED lamp circuit according to any one of claims 1 to 6, wherein the control circuit comprises a power conversion circuit and a control unit which are connected in sequence;
the power supply conversion circuit is used for carrying out voltage reduction and voltage stabilization conversion on the low-voltage direct current and outputting working voltage for supplying power to the control unit;
the control unit is integrated with a wireless module for receiving wireless instructions, and the control unit is used for outputting the dimming signals corresponding to the wireless instructions.
8. An LED lamp comprising an LED lamp circuit according to any one of claims 1 to 7.
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| CN201920865588.5U CN210247114U (en) | 2019-06-10 | 2019-06-10 | LED lamp and LED lamp circuit thereof |
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| CN201920865588.5U CN210247114U (en) | 2019-06-10 | 2019-06-10 | LED lamp and LED lamp circuit thereof |
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| CN210247114U true CN210247114U (en) | 2020-04-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113301684A (en) * | 2021-05-20 | 2021-08-24 | 生迪智慧科技有限公司 | LED control circuit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113301684A (en) * | 2021-05-20 | 2021-08-24 | 生迪智慧科技有限公司 | LED control circuit |
| CN113301684B (en) * | 2021-05-20 | 2023-12-08 | 生迪智慧科技有限公司 | LED control circuit |
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