CN2367047Y

CN2367047Y - LED neon light controlled by single chip microprocessor

Info

Publication number: CN2367047Y
Application number: CN 98251181
Authority: CN
Inventors: 李一龙
Original assignee: Individual
Current assignee: Individual
Priority date: 1998-12-31
Filing date: 1998-12-31
Publication date: 2000-03-01
Anticipated expiration: 2008-12-31

Abstract

The utility model relates to an LED neon light, which is controlled by a single chip microprocessor. A light-emitting unit is composed of the connection in parallel of two LEDs with opposite polarity, and a resistor. A light-emitting component composed of the connection in series of a plurality of light-emitting units can be directly connected with 220V AC commercial power. The connection in parallel of a series of light-emitting components can form various patterns and characters according to requirements. The neon light omits a transformer used by traditional neon lights; the integral cost is reduced. The utility model has the advantages of energy saving, convenient control and high lifetime, and can be made into neon lights which are orderly illumined by simulating writing order. Consequently, the LED neon light with high lifetime, low energy consumption, convenient control and infinite variation and with commercial power controlled by the single chip microprocessor can be widely applied in advertisement decoration.

Description

Single-chip Controlling commercial LED neon light

The utility model relates to electronic technology field, particularly the electric neon light technology.

The prosperity that the city appears night be unable to do without decorateeing of neon light with beautiful, present being seen neon light has two kinds: the one, and the principle of gas discharge is made under the application of high voltages, it controls inconvenience because of high-tension high-power, power consumption is big, and leakage transformer or electronic transformer cost are also high, and especially the short maintenance capacity of lamp tube service life is big, it two is the scorching hot tungsten filament principle of luminosity of applied current, the miniature bulb series connection is pressed in the plastic tube, use the low pressure neon light of civil power, but its life-span is also very short.

The utility model is at above-mentioned deficiency, proposes a kind ofly directly to connect the LED neon light of civil power with Single-chip Controlling, can reach high life, the low energy consumption purpose of control very easily again.

Technical solution of the present utility model is: as controller, become a luminescence unit with two opposite polarity light-emitting diodes are in parallel with resistance with single-chip microcomputer, and a plurality of units in series luminescence component of formation that gets up is directly received electric main.

Accompanying drawing 1 is luminescence component circuit diagram of the utility model (on be that 110 luminescence units are formed, form for 110 luminescence components of less than add an electric capacity down)

Accompanying drawing 2 is the utility model single chip machine controlling circuit structural representation

Accompanying drawing 3 is the utility model embodiment luminescence component grouping schematic diagram

In the accompanying drawing: A is that luminescence unit, B are that luminescence component, C are that rectifying voltage regulator, D are that the two-in-one chip 89c51 of central processing unit and program storage, E are that eight bit shifts/register 74HC595, F is bidirectional triode thyristor.

Now be described further in conjunction with the accompanying drawings:

In Fig. 1: the forward voltage drop of LED light-emitting diode is about 2V, and China's civil power is an alternating current 220V.Therefore, if 110 luminescence components that the luminescence unit serial connection forms just can directly connect the 220V electric main.Be less than 110 luminescence units, the electric capacity of can going here and there again also can be formed a luminescence component, directly connects the 220V electric main.

In the drawings in 2 the single chip machine controlling circuit: rectifying voltage regulator provides each the direct current 5V of operating voltage, central processing unit is connected eight bit shifts/register (as 74HC595) with program storage (as 89C51), can make each output high level or low level of eight bit shifts/register as required, and each output connects No. one bidirectional triode thyristor and a luminescence component, and a plurality of eight bit shifts/register is connected in series can be realized the bright of any a plurality of luminescence components or go out.The outstanding advantage of this circuit is an applicating software programming and make hardware circuit very succinct, arbitrarily expansion.

The utility model embodiment: " China Post " lamp decoration.

Accompanying drawing 3 is " China Post " four big words that a series of luminescence component is formed, decompose 48 groups according to order of strokes, use the 89C51 software programming of singlechip controller of the present utility model, make 6 74HC595 drive 48 controllable silicon conductings successively, just can make No. 0 to No. 48 luminescence component light successively, its effect is being write " China Post " four big words just as the people, if the traditional neon light that adopts big electric current, high voltage to make, control circuit will be much more difficult, be difficult for realizing.

The selected LED semiconductor light-emitting-diode of the utility model, the luminous efficiency height, its power consumption is less than 1/10 of traditional neon light under same brightness, though LED semiconductive luminescent materials price is more expensive, but directly use the 220V civil power and save transformer, its life-span is higher than tens times of traditional neon lights again more than 100,000 hours, as a complete unit, cost still greatly reduces; And because the little electric current of low-voltage, control is got up just very convenient.The LED semiconductive luminescent materials have send out red, green, yellow, coloured light such as indigo plant, also can match into colourful other coloured light, in advertisement and decoration, have a wide range of applications.

Total the above, that the utility model Single-chip Controlling LED civil power neon light has is easy to install and use, high life, low energy consumption be convenient to characteristics such as control again, can make to write order as simulation and with countless changes neon light such as light.

Claims

1, Single-chip Controlling commercial LED neon light, it is characterized in that: it adopts single-chip microcomputer to connect control, its luminescence unit is to be formed in parallel by two opposite polarity LED light-emitting diodes and a resistance, be in series by a plurality of luminescence units and form a luminescence component, luminescence component directly connects electric main.

2, Single-chip Controlling commercial LED neon light according to claim 1 is characterized in that: the luminescence component that it directly connects civil power can be in series by 110 luminescence units, when luminescence unit is less than 110, needs serial connection one electric capacity.

3, Single-chip Controlling commercial LED neon light according to claim 1, it is characterized in that: its single chip machine controlling circuit is to be connected eight bit shifts/register 74HC95 by the two-in-one chip 89C51 of central processing unit and program storage, and each output connects No. one bidirectional triode thyristor and a luminescence component, and output figure place available strings connects the method for eight bit shifts/register and expands arbitrarily.