CN204316840U

CN204316840U - Direct current thumb lamp controller

Info

Publication number: CN204316840U
Application number: CN201520033814.5U
Authority: CN
Inventors: 吴相勇
Original assignee: LINHAI NUOSAITE INDUSTRY TRADE Co Ltd
Current assignee: LINHAI NUOSAITE INDUSTRY TRADE Co Ltd
Priority date: 2015-01-19
Filing date: 2015-01-19
Publication date: 2015-05-06
Anticipated expiration: 2025-01-19

Abstract

The utility model discloses a kind of direct current thumb lamp controller, comprise, governor circuit, there is a control chip and a memory, this memory writes corresponding program by the mode of burning program, this control chip can read the program in this memory, and controls button to export a data-signal in response to one; Drive circuit, is made up of the cascade of polylith LED drive chip, and described LED drive chip comprises RGB output pin, signal input pin, signal output pin, and this memory and governor circuit are together packaged in shell.The utility model have employed the design of built-in storage chip, reaches the object of waterproof; In addition, adopt special LED drive chip to drive RGB tri coloured lantern, greatly simplify line construction, reduce cost, enhance control effects.

Description

Direct current thumb lamp controller

Technical field

The utility model belongs to LED control field, relates to a kind of direct current thumb lamp controller.

Background technology

At present, there is a kind of card insert type LED controller on the market, its shell is provided with SD draw-in groove, as long as the SD card that program is housed is inserted in this SD draw-in groove, the singlechip chip of controller inside can read the program in SD card, and under the triggering of outer button, realize the function switching LED lighting mode.

But, because this SD draw-in groove exists the possibility of water inlet, need to take certain seal approach, this complexity just making the structural design at SD draw-in groove place become, and, at present conventional hermetically-sealed construction is not long for useful life, there will be the decline of sealing property after repeatedly plug SD card, can not in the effect reaching waterproof truly.

In addition, current LED is in order to realize the switching of different colours, general in the LED (RGB) of same lampshade built with three kinds of colors, the display of shades of colour is reached according to the various combination of the lamp of three kinds of colors, and a whole cluster of lamps, ornamental is formed by connecting by many lampshade wires, but, product is in the market all the LED controlled separately by controller in each lampshade, this just makes the complex structure on circuit, required wire is also longer, cause cost higher, and, such mode also cannot grow with each passing hour in the realizing of control effects, meet current demand.

Therefore, for above problem, be necessary to propose a kind of new solution.

Utility model content

For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of direct current thumb lamp controller, have employed the design of built-in storage chip, reaches the object of waterproof; In addition, adopt special LED drive chip to drive RGB tri coloured lantern, greatly simplify line construction, reduce cost, enhance control effects.

For achieving the above object, the utility model provides following technical scheme: a kind of direct current thumb lamp controller, comprise, governor circuit, there is a control chip and a memory, this memory writes corresponding program by the mode of burning program, and this control chip can read the program in this memory, and controls button to export a data-signal in response to one; Drive circuit, be made up of the cascade of polylith LED drive chip, described LED drive chip comprises RGB output pin, signal input pin, signal output pin, wherein, RGB output pin couples RGB tri coloured lantern respectively, the signal input pin of first piece of LED drive chip be coupled to this data-signal, the signal input pin of all the other LED drive chip is coupled to the signal output pin of upper level LED drive chip all successively; This drive circuit in response to data-signal with the operating state of control RGB tri coloured lantern; This memory and governor circuit are together packaged in shell.

Further, described control chip is single-chip microcomputer.

Further, described LED drive chip is triple channel LED constant current driving chip.

Further, described direct current thumb lamp controller provides galvanic current by a power supply adaptor.

Compared with prior art, the utility model has the advantages that:

By being built in shell by this storage chip able to programme, avoid the waterproof defect of SD draw-in groove in prior art.In addition, the utility model make use of the drive circuit that is made up of polylith triple channel LED constant current driving chip to drive RGB tri coloured lantern, circuit structure is simplified, reduce cost, meanwhile, this triple channel LED constant current driving chip, by RGB output pin control RGB tri coloured lantern respectively, can realize the light on and off controlling separately a kind of LED of color, more reasonable in control mode, thus demand in the market can be met.

Accompanying drawing explanation

Fig. 1 is the control principle drawing of the utility model embodiment;

Fig. 2 is the circuit diagram of the governor circuit of the utility model embodiment;

Fig. 3 is the circuit diagram of the drive circuit of the utility model embodiment;

Fig. 4 is the structure chart of whole lamp string in the utility model embodiment.

Accompanying drawing marks: 100, control circuit, and 110, memory, 120, control chip, 200, drive circuit, 300, shell, 400, lampshade, IC1 ~ ICn, LED drive chip, R, G, B, tri coloured lantern, SW, control button.

Embodiment

Referring to figs. 1 through Fig. 4, the utility model embodiment is described further.

A kind of direct current thumb lamp controller, comprise governor circuit 100, there is control chip 120 and a memory 110, this memory 110 writes corresponding program by the mode of burning program, its model is CAT25040SI-TE13, this control chip 120 can read the program in this memory 110, and controls button SW to export a data-signal data in response to one; Drive circuit 200, as shown in Figure 3, be made up of polylith LED drive chip (IC1 ~ ICn) cascade, LED drive chip comprises RGB output pin (OUTR, OUTG, OUTB), signal input pin DI, signal output pin DO, wherein, RGB output pin (OUTR, OUTG, OUTB) couples RGB tri coloured lantern respectively, the signal input pin DI of first piece of LED drive chip (being IC1 in figure) be coupled to this data-signal data, the signal input pin DI of all the other LED drive chip (IC2 ~ ICn) is coupled to the signal output pin DO of upper level LED drive chip all successively; This drive circuit 200 realizes controlling the difference of RGB tri coloured lantern in response to data-signal data; This memory 110 is together packaged in shell 300 with governor circuit 100.

Therefore, the present embodiment by memory 110 is built in governor circuit 100, to be wholely closed in shell 300, thus avoids the defect of SD draw-in groove water inlet in prior art.In addition, this drive circuit 200 is formed by multiple LED drive chip (IC1 ~ ICn) cascade, the data-signal data input pin of first piece of LED drive chip (being IC1 in figure) is only needed to be connected with control chip, the signal input pin DI of all the other LED drive chip (IC2 ~ ICn) is coupled to the signal output pin DO of upper level LED drive chip all successively, like this, just the wiring trouble and Cost Problems that cause because the LED in each independent lampshade 400 is directly connected with control circuit in prior art is avoided.

In the present embodiment, control chip 120 is single-chip microcomputer.Its model is AT89C52.

LED drive chip (IC1 ~ ICn) is triple channel LED constant current driving chip.Its model is GW6202B, this chip adopts the communication modes of single line NRZ, chip is after electrification reset, signal input part DI receives the data-signal data(24bit data transmitted from control chip 120), first after the data-signal data brought is extracted by first chip (IC1), deliver to the data latches of chip internal, remaining data start to forward by signal output part DO the chip exporting to next cascade after inner Shape correction circuit shaping is amplified, often through the transmission of a chip, signal reduces 24bit.Chip adopts automatic shaping retransmission technique, makes the cascade number of this chip not by the restriction that signal transmits, only constrained signal transmission speed requirement.

The data latches of chip internal is according to the 24bit data received, at OUTR, OUTG, OUTB end produces the drive singal (light on and off of control RGB tri coloured lantern) of different duty ratios, when waiting for DI end input RESET signal, the data received are delivered to each section by all chip synchronization, chip accepts new data again by after this signal ended, after receiving the 24bit data of beginning, by DO mouth forwarding data mouth, chip is not before receiving RESET code, OUTR, OUTG, the former output of OUTB pin remains unchanged, after receiving the above low level RESET code of 10 μ s, just now the 24bit PWM data pulse widths received is outputted to OUTR by chip, OUTG, on OUTB pin.

Therefore, only needing by touching by this control button SW, making control chip 120 export different data signals, just can realize the independent control to the RGB tri coloured lantern in first lampshade 400.

In addition, as can see from Figure 2, the utility model directly provides+5V voltage by a DC power supply, such benefit is can be more convenient in the galvanic occasion of some easy acquisitions, time such as out of doors, directly cannot obtain civil power (220V), so just can obtain operating voltage by the DC power supply of outside.This DC power supply can be storage battery.

Above, functional effect described by the utility model is based upon in the structural design of circuit, major way is by program-carried built-in chip type and have employed above-mentioned LED drive chip to drive RGB tri coloured lantern, and program does not belong to the technical solution of the utility model, and the technical solution of the utility model is not dependence program yet implements.

Claims

1. a direct current thumb lamp controller, comprises,

Governor circuit, have a control chip and a memory, this memory writes corresponding program by the mode of burning program, and this control chip can read the program in this memory, and controls button to export a data-signal in response to one;

Drive circuit, be made up of the cascade of polylith LED drive chip, described LED drive chip comprises RGB output pin, signal input pin, signal output pin, wherein, RGB output pin couples RGB tri coloured lantern respectively, the signal input pin of first piece of LED drive chip be coupled to this data-signal, the signal input pin of all the other LED drive chip is coupled to the signal output pin of upper level LED drive chip all successively;

This drive circuit in response to data-signal with the operating state of control RGB tri coloured lantern;

This memory and governor circuit are together packaged in shell.

2. direct current thumb lamp controller according to claim 1, described control chip is single-chip microcomputer.

3. direct current thumb lamp controller according to claim 1, described LED drive chip is triple channel LED constant current driving chip.