CN206452570U

CN206452570U - Many breath light control circuits

Info

Publication number: CN206452570U
Application number: CN201621332107.7U
Authority: CN
Inventors: 王肖伟
Original assignee: Shanghai Chuanying Information Technology Co Ltd
Current assignee: Shanghai Chuanying Information Technology Co Ltd
Priority date: 2016-12-07
Filing date: 2016-12-07
Publication date: 2017-08-29
Anticipated expiration: 2026-12-07

Abstract

The many breath light control circuits of the utility model, including control chip and driving chip, the driving chip is controlled by the control chip, also include power switch one, the power switch two connected on the control chip, ..., power switch N, and it is series at the power switch one, power switch two, ..., LED light group one, LED light group two ... ... on power switch N, LED light group N, the LED light group one, LED light group two ... ..., LED light group N are driven by the LED interfaces one on the driving chip, LED interfaces two and LED interfaces three.The problem of can solving to be only 3 paths of LEDs lamps of driving or single RGB in the prior art using the utility model.

Description

Many breath light control circuits

Technical field

The utility model especially can control many breath lights simultaneously about a kind of breath light control circuit about a kind of Control circuit.

Background technology

Music is servo-actuated LED function and refers to that LED brightness changes with the size variation of music amplitude, so as to show Colorful and dynamic effect.LED color and brightness are controlled by chip.At present on the market with AW2028 master chips For solution, AW2028 chips are communicated by I2C, carry out one-time programming, you can complete the control of Self-breathing.In the chip Middle single channel driving current is 75mA, and I2C controls 256 grades of adjustable output currents, and with very high output resolution ratio, music is servo-actuated Effect is ideal.

Refer to shown in Fig. 1, be the circuit diagram of control circuit of the prior art.Pass through AP application chips 10 and AW2028 The control of driving chip 11, then drives 3 paths of LEDs lamps by the driving chip 11, the 3 paths of LEDs lamp is carried out color and brightness change Change.

However, existing driving chip acquiescence only supports the control of three tunnels, that is, three LEDs or single RGB, it is impossible to carry out LED or the RGB control of more multichannel.

More LED or RGB are how effectively controlled to turn into the problem of needing to solve under present basic framework.

Utility model content

The purpose of this utility model is a kind of many breath light control circuits of offer, and many breath light control circuits can make LED or many RGB with single driving chip driving more than 3 tunnels.

The utility model provides a kind of many breath light control circuits, including control chip and driving chip, the driving core Piece is controlled by the control chip, and it also includes power switch one, the power switch connected on the control chip Two ... ..., power switch N, and the LED light group being series on the power switch one, power switch two ... ..., power switch N First, LED light group two ... ..., LED light group N, the LED light group one, LED light group two ... ..., LED light group N pass through the driving LED interfaces one, LED interfaces two and LED interfaces three on chip drive.

Preferably, the multiple LED light group partly or entirely includes three LEDs.

Preferably, in the multiple LED light group each LED color is different.

Preferably, each LED light group is single RGB.

Preferably, the driving chip is AW2028 chips.

Preferably, the N is 2 or 3 or 4.

Preferably, the LED of the same color in the multiple LED light group is parallel to same LED interfaces.

Using many breath light control circuits of the present utility model, using single driving chip driving more than the LED on 3 tunnels or Many RGB.

Brief description of the drawings

Exemplary embodiment of the present utility model is described in detail below with reference to the accompanying drawings, it will be appreciated that retouch below The embodiment stated is only used for explaining the utility model, and without being restricted to scope of the present utility model, appended accompanying drawing is wherein：

Fig. 1 is the circuit diagram of many breath light control circuits of prior art；

Fig. 2 is the circuit diagram of one embodiment of many breath light control circuits of the utility model.

Embodiment

In different drawings, same or analogous part is presented with like reference characters.

It should be appreciated that accompanying drawing is only used for illustrating the utility model, the wherein size of part, proportionate relationship and portion The number of part is not as to limitation of the present utility model.

Refer to shown in Fig. 2, many breath light control circuits 100 of the present utility model include control chip 20, driving chip 30th, multiple power switches 41,42,43,44 and multiple LED light groups.The control chip 20 is MCP (Media in the present embodiment Communication Processor), multiple power switches 41,42,43,44 are connected with control chip 20, are respectively electricity Source switch 1, power switch 2 42, power switch 3 43 and power switch 4 44.Control chip 20 simultaneously with driving chip 30 Connected by I2C buses and control driving chip 30, driving chip 30 is AW2028H chips in the present embodiment.In driving core There are three LED interfaces, respectively LED interface 1, LED interface 2 32 and LED interface 3 33 on piece 30. It is parallel with 4 LEDs on LED interface 31, respectively L1, L4, L7, L10,4 LEDs is parallel with LED interface 32, Respectively L2, L5, L8, L11, are parallel with 4 LEDs, respectively L3, L6, L9, L12 on LED interface 33.Above-mentioned LED L1, L2, L3 constitute LED light group one, are connected with above-mentioned power switch 1, control it whether to turn on by power switch 1. Above-mentioned LED L4, L5, L6 constitute LED light group two, are connected with above-mentioned power switch 2 42, and it is controlled by power switch 2 42 Whether turn on.Above-mentioned LED L7, L8, L9 constitute LED light group three, are connected with above-mentioned power switch 3 43, pass through power switch three 43 control it whether to turn on.Above-mentioned LED L10, L11, L12 constitute LED light group four, are connected with above-mentioned power switch 4 44, lead to Crossing the control of power switch 4 44, whether it turns on.

At work, if turn-on power switch 1, LED light group one is turned on, L1/L2/L3 work, for others Power switch 42,42,44, it is identical with this, this group of LED light group can be controlled.If multiple power switches are simultaneously turned on, can Control the conducting of multigroup lamp group.In the present embodiment, every road breath light driving current of the AW2028 is 75mA, and per in the lump Driving current required for the LED of connection is 20mA or so, after the parallel connection of four tunnels, and the electric current distributed on every paths of LEDs lamp is 18.5mA or so, because brightness can be controlled effectively.Certainly, in other embodiments, as long as the electric current distributed in each LED Substantially meet demand, you can to complete the utility model, belong to well known to those skilled in the art.

In the present embodiment, using 3 LED one LED light groups of formation, the face of the LED in any one described lamp group Color is preferably respective difference, the use of the LED in parallel of same LED interface is preferably same color, can also be as needed And it is different.Certainly, in other embodiments, the color configuration of LED can also have different configuration modes, institute as needed Stating LED light group can also be substituted with single RGB.In the present embodiment, 4 power switches have been used, certainly in others implementation In example, the power switch can also have other numbers, be 2,3 etc..

The utility model is described only in conjunction with the most practical preferred embodiment considered after mesh above, it is to be understood that It is that described above is not that, to limitation of the present utility model, the utility model is also not limited to the example above, the art The variations, modifications, additions or substitutions that those of ordinary skill is made in essential scope of the present utility model, should also belong to this reality With new protection domain.

Claims

1. a kind of many breath light control circuits, including control chip and driving chip, the driving chip pass through the control core Piece is controlled, it is characterised in that also including the power switch one, the power switch two ... ... that are connected on the control chip, power supply is opened Close N, and LED light group one, the LED light group being series on the power switch one, power switch two ... ..., power switch N Two ... ..., LED light group N, the LED light group one, LED light group two ... ..., LED light group N pass through the LED on the driving chip Interface one, LED interfaces two and LED interfaces three drive.

2. many breath light control circuits as claimed in claim 1, it is characterised in that the multiple LED light group is part or all of Including three LEDs.

3. many breath light control circuits as claimed in claim 2, it is characterised in that each LED in the multiple LED light group Color is different.

4. many breath light control circuits as claimed in claim 3, it is characterised in that each LED light group is single RGB.

5. many breath light control circuits as described in claim 1 or 2 or 3, it is characterised in that the driving chip is AW2028 Chip.

6. many breath light control circuits as described in claim 1 or 2 or 3, it is characterised in that the N is 2 or 3 or 4.

7. many breath light control circuits as described in claim 1 or 2 or 3, it is characterised in that in the multiple LED light group The LED of same color is parallel to same LED interfaces.