CN215073058U

CN215073058U - LED full-color lamp band circuit with built-in IC

Info

Publication number: CN215073058U
Application number: CN202121217451.2U
Authority: CN
Inventors: 范永明
Original assignee: Shenzhen Century Photoelectric Lighting Co ltd
Current assignee: Shenzhen Century Photoelectric Lighting Co ltd
Priority date: 2021-06-02
Filing date: 2021-06-02
Publication date: 2021-12-07
Anticipated expiration: 2031-06-02

Abstract

The utility model discloses a full-color lamp area circuit of built-in IC's LED, the utility model discloses in: the input end of the stabilized voltage power supply is connected with an alternating current power supply; the output end of the voltage-stabilized power supply outputs direct current to supply power for the IC chip and the driving circuit; the IC chip is electrically connected with the drive circuit; the driving circuit is connected with the LED lamp group; the IC chip is also connected with a crystal oscillator, and the crystal oscillator provides a clock signal for the IC chip; the IC chip outputs PWM signals to control the on-off and brightness of the LED lamp group; the driving circuit controls the on-off and brightness of the red LED lamp, the green LED lamp and the blue LED lamp according to the PWM signal output by the IC chip. The utility model discloses a set up the steady voltage power supply and supply power to the banks, improved the stability of power, avoid the unsteady fluctuation of current to cause the influence to the banks to bright the going out through the switch that sets up IC chip output PWM signal control banks, constitute the output that has realized different colour light through the difference that sets up red LED banks, green LED banks and blue LED banks, it is simple to have a circuit, and is with low costs.

Description

LED full-color lamp band circuit with built-in IC

Technical Field

The utility model belongs to the technical field of the LED lamp, especially, relate to a full-color lamp area circuit of built-in IC's LED.

Background

The lamp strip is characterized in that the LED lamp beads are assembled on a strip-shaped FPC or PCB hard board, the shape of the lamp strip is like a strip, and the LED lamp strip is popularized and used more and more along with the gradual development of the lighting industry. The existing LED lamp belts in the market are multicolor LED lamp belts besides single-color LED lamp belts; the magic color LED strip refers to a magic color visual effect that LEDs on the strip can be controlled to change various colors so as to bring color change to users.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a full-color lamp of built-in IC's LED area circuit, supply power to banks through setting up steady voltage power supply, improved the stability of power, it is undulant to cause the influence to banks to avoid the conversion to fluctuate to bright the going out through the switch that sets up IC chip output PWM signal control banks, constitute the output that has realized different colour light through the difference that sets up red LED banks, green LED banks and blue LED banks, it is simple to have a circuit, and is with low costs.

In order to solve the technical problem, the utility model discloses a realize through following technical scheme:

the utility model relates to a built-in IC LED full-color lamp belt circuit, which comprises an IC chip, a stabilized voltage power supply and a drive circuit, wherein the input end of the stabilized voltage power supply is connected with an AC power supply; the output end of the voltage-stabilized power supply outputs direct current to supply power for the IC chip and the driving circuit; the IC chip is electrically connected with the drive circuit; the driving circuit is connected with the LED lamp group; the IC chip is also connected with a crystal oscillator, and the crystal oscillator provides a clock signal for the IC chip; the IC chip outputs PWM signals to control the on-off and brightness of the LED lamp group; the LED lamp group comprises a red LED lamp, a green LED lamp and a blue LED lamp; the driving circuit controls the on-off and the brightness of the red LED lamp, the green LED lamp and the blue LED lamp according to the PWM signal output by the IC chip.

Further, the regulated power supply comprises a rectifier bridge; the input end of the rectifier bridge is connected with a 220V alternating current power supply, and the output end of the rectifier bridge is connected with a diode D6 to the lamp group in series; the type of the diode D6 is IN 4007; a resistor R2 is connected to the ground at the middle connection point of the rectifier bridge and the diode D6; both ends of the resistor R2 are connected in parallel with a diode D5.

Further, the output end of the rectifier bridge is also connected with a grounding capacitor C2.

Further, the driving circuit comprises an NPN triode Q1, and the base of the NPN triode Q1 is connected with the output end of the IC chip; the collector of the NPN triode Q1 is grounded; and an emitting electrode of the NPN triode Q1 is sequentially connected in series with the matching resistor R1 and the LED lamp group to the voltage source VCC.

The utility model discloses following beneficial effect has:

the utility model discloses set up the steady voltage power supply and supply power to the banks, improved the stability of power, avoid the unsteady fluctuation of current to cause the influence to the banks to bright the going out through the switch that sets up IC chip output PWM signal control banks, constitute the output that has realized different colour light through the difference that sets up red LED banks, green LED banks and blue LED banks, it is simple to have a circuit, and is with low costs.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments 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 that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a system block diagram of an LED full-color lamp strip circuit with an IC built in;

FIG. 2 is a circuit diagram of a regulated power supply;

fig. 3 is a circuit diagram of the driving circuit.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

In the description of the present invention, it is to be understood that the terms "open hole", "upper", "lower", "thickness", "top", "middle", "length", "inner", "around", and the like, indicate positional or positional relationships, are merely for convenience in describing the present invention and to simplify the description, and do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Referring to fig. 1, the utility model relates to a built-in IC LED full color lamp belt circuit, which comprises an IC chip, a regulated power supply and a driving circuit, wherein the input end of the regulated power supply is connected with an ac power supply; the output end of the voltage-stabilized power supply outputs direct current to supply power for the IC chip and the driving circuit; the IC chip is electrically connected with the drive circuit; the driving circuit is connected with the LED lamp group; the IC chip is also connected with a crystal oscillator, and the crystal oscillator provides a clock signal for the IC chip; the IC chip outputs PWM signals to control the on-off and brightness of the LED lamp group; the LED lamp group comprises a red LED lamp, a green LED lamp and a blue LED lamp; the driving circuit controls the on-off and brightness of the red LED lamp, the green LED lamp and the blue LED lamp according to the PWM signal output by the IC chip.

Wherein, as shown in fig. 2, the regulated power supply comprises a rectifier bridge; the input end of the rectifier bridge is connected with a 220V alternating current power supply, and the output end of the rectifier bridge is connected with a diode D6 to the LED lamp bank in series; the model of the diode D6 is IN 4007; the middle connection point of the rectifier bridge and the diode D6 is connected with a resistor R2 to the ground; two ends of the resistor R2 are connected in parallel with the diode D5, and the output end of the rectifier bridge is also connected with a grounding capacitor C2.

As shown in fig. 3, the driving circuit includes an NPN transistor Q1, and a base of the NPN transistor Q1 is connected to an output terminal of the IC chip; the collector of the NPN triode Q1 is grounded; an emitting electrode of the NPN triode Q1 is sequentially connected with the matching resistor R1 and the LED lamp group in series to the voltage source VCC.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a full-color lamp of LED area circuit of built-in IC, includes IC chip, constant voltage power supply, drive circuit, its characterized in that: the input end of the stabilized voltage power supply is connected with an alternating current power supply; the output end of the voltage-stabilized power supply outputs direct current to supply power for the IC chip and the driving circuit; the IC chip is electrically connected with the drive circuit; the driving circuit is connected with the LED lamp group;

the IC chip is also connected with a crystal oscillator, and the crystal oscillator provides a clock signal for the IC chip;

the IC chip outputs PWM signals to control the on-off and brightness of the LED lamp group; the LED lamp group comprises a red LED lamp, a green LED lamp and a blue LED lamp; the driving circuit controls the on-off and the brightness of the red LED lamp, the green LED lamp and the blue LED lamp according to the PWM signal output by the IC chip.

2. The Integrated Circuit (IC) -embedded LED full-color lamp strip circuit according to claim 1, wherein the regulated power supply comprises a rectifier bridge; the input end of the rectifier bridge is connected with a 220V alternating current power supply, and the output end of the rectifier bridge is connected with a diode D6 to the lamp group in series; the type of the diode D6 is IN 4007;

a resistor R2 is connected to the ground at the middle connection point of the rectifier bridge and the diode D6; both ends of the resistor R2 are connected in parallel with a diode D5.

3. The LED full-color lamp strip circuit with a built-in IC according to claim 2, wherein the output end of the rectifier bridge is further connected with a grounding capacitor C2.

4. The LED full-color lamp belt circuit with a built-in IC according to claim 1, characterized in that the driving circuit comprises an NPN triode Q1, the base of the NPN triode Q1 is connected with the output end of the IC chip;

the collector of the NPN triode Q1 is grounded; and an emitting electrode of the NPN triode Q1 is sequentially connected in series with the matching resistor R1 and the LED lamp group to the voltage source VCC.