CN201116671Y - An intelligent LED full-color lamp group and the decorative lamp string composed of it - Google Patents

Abstract

An intelligent LED full-color light group and the decorative light string composed thereof, the full-color light group is provided with a single-chip driver IC unit packaged with red, green and blue LED chips into a module with at least four pins, The decorative light string consists of at least two intelligent LED full-color light groups connected in series or/and parallel to form a light string or light matrix; there is also a main control IC that serially transmits external control signals in a single-wire connection with one in and one out . The utility model transmits signals in series, and only needs one signal line to complete the transmission of all control data, avoiding the transmission attenuation of control signals, and the structure can be wound and placed at will according to the design intention, and can be widely used in electric wires In products such as string lights for Christmas tree decorations for transmission control. It can also be determined by the main control IC to determine the chromaticity, brightness, speed control and other changes of the light string to form different combinations to complete various color conversion functions. Since the three chips are independently regulated by the main control IC, it can make the lamp group have good effects in terms of color brightness and uniformity.

Description

An intelligent LED full-color lamp group and the decorative lamp string composed of it

technical field

The utility model relates to LEDs, in particular to an intelligent LED full-color lamp group widely used in the field of LED lighting decorations and a decorative lamp string composed of the same.

Background technique

The existing ultra-small full-color LED display unit that can synchronously form dynamic patterns is embedded with a serial drive control chip, and uses a cascading mode of 6 lines to form a full-color display module. It can only use PCB as the substrate and cannot be folded. , winding. Its cost is high, its application range is not wide, and it is difficult to popularize. The common light strings or light strips composed of four monochromatic LEDs, and the light strings or light strips composed of traditional full-color LEDs, have few changes in color and color, and it is difficult to synchronize the full colors, and it is impossible to form dynamic patterns. For flaws such as string lights for Christmas tree decorations.

Utility model content

A technical problem to be solved by the utility model is to make up for the defects of the above-mentioned prior art, and propose an intelligent LED full-color lamp group widely used in the field of LED lighting.

Another technical problem to be solved by the utility model is to make up for the above-mentioned defects of the prior art, and propose an intelligent LED full-color decorative lamp string composed of intelligent LED full-color lamp groups that is widely used in the field of LED lighting.

The intelligent LED full-color lamp group of the utility model is realized through the following technical solutions:

This intelligent LED full-color lamp group includes three kinds of LED chips: red, green and blue.

The characteristics of this intelligent LED full-color light group are:

A single-chip driver IC unit is provided, and the single-chip driver IC unit is packaged with the red, green and blue LED chips into a module with at least four pins, wherein two pins are respectively connected to the positive pole and the negative pole of the power supply , at least two pins are respectively connected to the control signal input end and the output end.

There is also a constant current output circuit and a voltage stabilizing circuit.

The intelligent LED full-color lamp group of the utility model is realized through the following further technical solutions:

The constant current output circuit includes a MOS field effect transistor for driving an LED.

The package includes a standard diameter Φ5 plastic package, a larger diameter Φ5 plastic package, a piranha package, and a four-legged support.

The intelligent LED full-color decorative light string of the utility model is realized through the following technical solutions:

The features of this smart LED full-color decorative string lights are:

A light string or a light matrix is composed of at least two of the above-mentioned intelligent LED full-color light groups connected in series or/and in parallel;

There is also a main control IC that serially transmits external control signals in a one-in-one-out single-wire connection.

The intelligent LED full-color decorative light string of the utility model is realized through the following further technical solutions:

The main control IC includes a single-chip microprocessor and a data shift register connected with the single-chip microprocessor. The single-chip microprocessor receives the upper-level serial data, drives the constant current output circuit after calculation and processing, and promotes the red, green, and blue LEDs of the intelligent LED full-color light group at this level to achieve light and dark, brightness changes, Constitute a full-color display: at the same time, the change instruction is transmitted to the next level, and serial connections of any length can be completed sequentially according to application requirements.

The composed light string or light matrix constitutes a decoration composed of preset shapes, patterns, characters or combinations thereof and colors combined with shapes, patterns, and characters composed of multiple light colors.

The connection of the composed light string or light matrix includes the connection through three wire bundles of two power lines and one communication line.

The connection of the composed light string or light matrix includes connection through PCB and flexible PCB wiring.

The beneficial effect of the utility model compared with the prior art is:

The decorative light string realizes one-in-one-out single-wire serial communication control, and transmits signals in series. Only one signal line is needed to complete the transmission of all control data, avoiding the transmission attenuation of control signals, and the structure can be According to the design intention, it can be wound and placed at will, which can be widely used in products such as Christmas tree decorative light strings controlled by wire transmission, and can also be applied to decorative light strings with PCB and flexible PCB as substrates, and controlled by the main control IC. Determine the chromaticity, brightness, speed control and other changes of the light string to form different combinations to complete various color conversion functions. Since the three chips are independently regulated by the main control IC, it can make the lamp group have good effects in terms of color brightness and uniformity.

Description of drawings

Figure 1 is a schematic diagram of an intelligent LED full-color lamp group.

Fig. 2 is a circuit diagram of a specific embodiment of an intelligent LED full-color light string with power supplies connected in series.

Fig. 3 is a circuit diagram of a specific embodiment of an intelligent LED full-color light string with power supplies connected in parallel.

Detailed ways

The intelligent LED full-color light group shown in Figure 1 adopts a standard diameter Φ5 plastic package, and the four in-line pins are pins 2 and 3 respectively connected to the positive VDD and negative GND of the DC 5V power supply, and The pins 4 and 1 are connected to the serial control signal input terminal Din and the output terminal D _OUT respectively. Adopt 3009L four-legged bracket. The interior consists of red, green and blue LED chips and a single-chip driver IC unit. In order to make the brightness and color mixing of LED light uniform and expand the viewing angle, the Φ5 plastic mold adopts the shape of flat head or concave head, and the injection glue is misty.

As shown in Figure 2, the circuit diagram of the intelligent LED full-color light string with the power supply in series, the mains AC220V or AC110V is regulated by the switching power supply to output DC300V DC voltage. The power supply of the lamp group is connected in series, that is, the positive pole of the power supply is connected to the negative pole of the upper stage, and the negative pole of the power supply is connected to the positive pole of the next stage power supply. The circuit has been proved by experiments that 56 lamp groups N1-N56 can be connected in series. The serial control signal output by the main control IC is also serially connected to the lamp group with a single line of one input and one output.

As shown in Figure 3, the circuit diagram of the intelligent LED full-color light string connected in parallel with the power supply uses 64 light groups N1.1 to N8.8 to form an 8×8 matrix, which is applied to curtains and curtain wall lighting to change various colors and shapes , patterns, characters. The mains AC220V or AC110V output DC5V and 3A DC voltage through the switching power supply, and connect them in parallel to each lamp group. The serial communication signals are respectively connected to the eight street lamps through the eight output interfaces of D1~D8 of the main control IC. The input port Din of the first lamp group Ni.1 of the string (8 lamp groups per channel), and the signal lines of the 8 lamp groups Ni.1~Ni.8 in the string are also connected in series with a single line of one input and one output. The ends are connected end to end, and the output pin of the eighth light group Ni.8 can be left in the air. The main control IC has a total of 16 output interfaces, which can control up to 16 light strings.

According to different use environments, the power supply of the lamp group is DC5V, which can be implemented in series or parallel, and work under the power supply of AC220V or AC110V and batteries to meet the needs of different users.

The red, green and blue LED chips used in this specific implementation mode are common high-brightness LED chips on the market, which is convenient for LED manufacturers to mass-produce according to the original process. The main control IC is designed and matched by a special N-MOS process. application.

The above content is a further detailed description of the utility model in combination with specific preferred embodiments, and it cannot be assumed that the specific implementation of the utility model is only limited to these descriptions. For those of ordinary skill in the technical field to which the utility model belongs, without departing from the concept of the utility model, some simple deduction or replacement can also be made, which should be regarded as belonging to the utility model by the submitted claims. Determine the scope of patent protection.

Claims (8)

1. An intelligent LED full-color lamp group, including three kinds of LED chips of red, green and blue, is characterized in that: A single-chip driver IC unit is provided, and the single-chip driver IC unit is packaged with the red, green and blue LED chips into a module with at least four pins, wherein two pins are respectively connected to the positive pole and the negative pole of the power supply , at least two pins are respectively connected to the control signal input end and the output end; There is also a constant current output circuit and a voltage stabilizing circuit. 2. The intelligent LED full-color lamp group according to claim 1, characterized in that: The constant current output circuit includes a MOS field effect transistor for driving an LED. 3. The intelligent LED full-color lamp group according to claim 1 or 2, characterized in that: The package includes a standard diameter Φ5 plastic package, a larger diameter Φ5 plastic package, a piranha package, and a four-legged support. 4. An intelligent LED full-color light string, characterized in that: At least two intelligent LED full-color light groups are connected in series or/and in parallel to form a light string or a light matrix. The intelligent LED full-color light group is provided with a single-chip driver IC unit, and the single-chip driver IC unit is connected to The red, green and blue LED chips are packaged into a module with at least four pins, two of which are respectively connected to the positive and negative poles of the power supply, and at least two pins are connected to the input and output terminals of the control signal , there is also a constant current output circuit and a voltage stabilizing circuit; There is also a main control IC that serially transmits external control signals in a one-in-one-out single-wire connection. 5. The intelligent LED full-color light string according to claim 4, characterized in that: The main control IC includes a single-chip microprocessor and a data shift register connected with the single-chip microprocessor. 6. The intelligent LED full-color light string according to claim 4 or 5, characterized in that: The composed light string or light matrix constitutes a decoration composed of preset shapes, patterns, characters or combinations thereof and colors combined with shapes, patterns, and characters composed of multiple light colors. 7. The intelligent LED full-color light string according to claim 6, characterized in that: The connection of the composed light string or light matrix includes the connection through three wire bundles of two power lines and one communication line. 8. The intelligent LED full-color light string according to claim 7, characterized in that: The connection of the composed light string or light matrix includes connection through PCB and flexible PCB wiring.

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