CN2796012Y

CN2796012Y - LED lamp synchronous controller

Info

Publication number: CN2796012Y
Application number: CNU2005200707714U
Authority: CN
Inventors: 黄鸣涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-15
Filing date: 2005-04-15
Publication date: 2006-07-12
Anticipated expiration: 2015-04-15

Abstract

The utility model relates to a synchronous controlling device of an LED lamp. The utility model is mainly and additionally provided with a synchronous signal generator on the basis that each set of the synchronous controlling device comprises LED lamps, a driving circuit and an LED controller, wherein the synchronous signal generator comprises an optical coupling part U1, a voltage-reducing resistor R1 and a protection diode D1; the input end of the optical coupling part U1 is connected with a mains supply through the voltage-reducing resistor R1; 50Hz pulse signals which are converted by 50Hz sinusoidal waves are synchronous with the frequency of the mains supply through the optical coupling part U1. The synchronous pulse signals are used for connecting the control end of the LED controller and are used for controlling output signals which are output from the output end of the LED controller; therefore, each of the LED lamps can be turned or off synchronously with the mains supply; each of the lamps in the system can be mutually synchronous. Each of the lamps is mutually interdependent and the wire laying of a signal wire is not needed, without the limit of the number of the lamps and distance. The utility model is widely used for LED lamps which needs synchronous change, such as road lamps, bridge guardrail lamps, etc.

Description

LED light fixture sync control device

Technical field

The utility model relates to a kind of control device, the control device that particularly a kind of synchro control a plurality of pattern, color, brightness and the light on and off that are the LED light fixture by several light emitting diode combined light fixtures respectively etc. change.

Background technology

LED light fixture with the light emitting diode combined of several multiple colors forms because of having remarkable advantages such as low energy consumption, long-life and brightness height, can replace daylight lamp, incandescent lamp, neon bulb to use, and can also be combined into various luminous patterns and can be extensive use of.But for several LED light fixtures, need carry out pattern by certain regular and synchronized, color, variation such as brightness and light on and off, as street lamp, light fixtures such as bridge Rail Guarding Lamp, adopt central controlled method to realize changing synchronously at present, a shared total controller, the multi-way control signals line is connected with the signal wire of each LED light fixture respectively, though this method can be controlled the working power of corresponding light emitting diode by certain regular and synchronized, realize that light fixture is at pattern, color, variation such as brightness and light on and off indicates trend of road with the eye-catching driving that is masked as, suggestion contents such as bridge position.But this centralized control method is long because of signal line wiring under the situation many to the light fixture number, that mounting distance is far away, cause signal attenuation easily and cause control malfunctioning.

Summary of the invention

The purpose of this utility model is to exist signal line wiring long in order to overcome a plurality of light fixtures of above-mentioned centralized control, cause signal attenuation easily and cause the malfunctioning weak point of control, design a kind of be installed in respectively in each LED light fixture and need not the LED light fixture sync control device that signal line wiring can synchro control.

LED light fixture sync control device of the present utility model; mainly be to comprise the LED light fixture at every cover; have additional synchronous generator on the basis of driving circuit and led controller; described synchronous generator comprises optocoupler U1; dropping resistor R1 and protection diode D1; resistance R 2 and capacitor C 1; the 1st pin of described optocoupler U1 is that input end is connected with the 220V AC power through dropping resistor R1 with the 2nd pin; the positive pole of protection diode D1 is connected with the 1st pin with the 2nd pin of optocoupler U1 respectively with negative pole; the 3rd pin ground connection of optocoupler U1; capacitor C 1 is connected between the 3rd pin and the 4th pin of optocoupler U1, and the 4th pin of optocoupler U1 is the output terminal of synchronous generator and is connected with positive source through resistance R 2.

Because it is the 220V AC power that the input signal of the optocoupler U1 of synchronous generator is directly taken from mains supply, its signal input part i.e. the 1st pin is connected with the 220V AC power through dropping resistor R1 with the 2nd pin, convert the 50HZ sine wave to the 50HZ pulse signal through optocoupler, the 50HZ pulse signal of i.e. the 4th pin output of the output terminal of optocoupler U1 directly and the Frequency Synchronization of the shared 220V AC power of each light fixture, with this 50HZ pulse signal control led controller, can make the LED of each light fixture realize its pattern, color, variation such as brightness and light on and off is carried out synchronously, owing to the separate signal line wiring that need not between each LED light fixture, can not be subjected to restrictions such as light fixture quantity and mounting distance, naturally overcome that existing must signal line wiring to occur long because of centralized control, caused signal attenuation easily and cause weak points such as control is malfunctioning.

Description of drawings

Accompanying drawing 1 is a block diagram of the present utility model;

Accompanying drawing 2 is circuit diagrams of the new synchronous generator of this practicality;

Accompanying drawing 3 is the circuit diagrams that accompanying drawing 2 are applied in a kind of embodiment on the light fixture.

Embodiment

Referring to accompanying drawing 1, light fixture of the present utility model mainly by synchronous generator 1, led controller 2, driving circuit 3 and, LED light fixture 4 and power supply form.Be on the synchronous every cover of existing needs comprises the basis of the light fixture that led controller 2, driving circuit 3 and LED light fixture 4 and power supply are formed, to have additional synchronous generator 1, the pulse signal control led controller synchronous that utilizes synchronous generator to produce with mains frequency, can make the LED light fixture not be subjected to quantity and distance limit, also need not signal line wiring and just can carry out variations such as pattern, color, brightness and light on and off by certain regular and synchronized of led controller program design.

The circuit of described synchronous generator as shown in Figure 2; its circuit comprises optocoupler U1; dropping resistor R1 and protection diode D1; resistance R 2 and capacitor C 1; the 1st pin of described optocoupler U1 is that input end is connected with the 220V AC power through dropping resistor R1 with the 2nd pin; the positive pole of protection diode D1 is connected with the 1st pin with the 2nd pin of optocoupler U1 respectively with negative pole; the 3rd pin ground connection of optocoupler U1; capacitor C 1 is connected between the 3rd pin and the 4th pin of optocoupler U1, and the 4th pin of optocoupler U1 is the output terminal of synchronous generator and is connected with positive source through resistance R 2.

Accompanying drawing 3 is the circuit diagrams that above-mentioned synchronous generator are used for a kind of embodiment of LED light fixture, led controller wherein and driving circuit comprise single-chip microcomputer U2,5V voltage stabilizing diode D2, resistance R 3, exclusion R4 and R5, triode Q1-Q5 and power supply, wherein, the 4th pin of single-chip microcomputer U2 is that synchronous signal input end is connected with the 4th pin of optocoupler U1, the 1st pin of single-chip microcomputer U2 is connected with resistance R 3 with 5V voltage stabilizing diode D2 negative pole, resistance R 3 other ends are connected with positive source, single-chip microcomputer U2 the 8th pin and 5V voltage stabilizing diode D2 plus earth, the 2nd of single-chip microcomputer U2,3,5,6,7 pin are connected with the base stage of triode Q1-Q5 through exclusion R4 respectively, the collector of triode Q1-Q5 is connected the grounded emitter of triode Q1-Q5 through the LED 1-LED5 and the exclusion R5 of LED light fixture respectively with positive source.Described LED 1-LED5 represents the pattern of certain color or one group of light emitting diode in parallel or connect of literal respectively, optocoupler is selected P521 type optocoupler for use, single-chip microcomputer U2 selects PIC12C5XX type single-chip microcomputer for use, and the also available conventional, electric-resistance of exclusion R4 and R5 replaces.For needs more during the output signal of multichannel, U2 can be selected for use 51 Series chip and suitably increase the quantity of triode and exclusion.The working power of single-chip microcomputer and LED can be selected common capacitance decompression rectifier power source or Switching Power Supply for use.

Because the input end of the optocoupler U1 of synchronous generator is that the 220V AC power is connected through dropping resistor R1 with mains supply, so it is 50HZ pulse signal and mains frequencies that the 50HZ sine wave converts to is synchronous through optocoupler, be connected with the control end of led controller and control the output signal that led controller is exported by setup program with the 50HZ pulse signal of the output of this optocoupler U1, after amplifying, driving circuit can make the light on and off of LED light fixture and mains supply synchronous again, because each LED light fixture is all synchronous with mains supply, also can the phase mutually synchronization between each LED light fixture so also just make.Can make the LED of each light fixture realize that variations such as its pattern, color, brightness and light on and off carry out synchronously, owing to the separate signal line wiring that need not between each LED light fixture, can not be subjected to restrictions such as light fixture quantity and distance, naturally overcome that existing must signal line wiring to occur long because of centralized control, caused signal attenuation easily and cause the weak point that control is malfunctioning.Can be widely used in need be by the LED light fixture of several synchronous variations of forming as street lamp, bridge Rail Guarding Lamp etc.

Claims

1; a kind of LED light fixture sync control device; comprise the LED light fixture; driving circuit and led controller; it is characterized in that also including synchronous generator; described synchronous generator comprises optocoupler U1; dropping resistor R1 and protection diode D1; resistance R 2 and capacitor C 1; the 1st pin of described optocoupler U1 is that input end is connected with the 220V AC power through dropping resistor R1 with the 2nd pin; the positive pole of protection diode D1 is connected with the 1st pin with the 2nd pin of optocoupler U1 respectively with negative pole; the 3rd pin ground connection of optocoupler U1; capacitor C 1 is connected between the 3rd pin and the 4th pin of optocoupler U1, and the 4th pin of optocoupler U1 is the output terminal of synchronous generator and is connected with positive source through resistance R 2.

2, LED light fixture sync control device as claimed in claim 1, it is characterized in that described led controller and driving circuit comprise single-chip microcomputer U2,5V voltage stabilizing diode D2, resistance R 3, exclusion R4 and R5, triode Q1-Q5 and power supply, wherein, the 4th pin of single-chip microcomputer U2 is that synchronous signal input end is connected with the 4th pin of optocoupler U1, the 1st pin of single-chip microcomputer U2 is connected with resistance R 3 with 5V voltage stabilizing diode D2 negative pole, resistance R 3 other ends are connected with positive source, single-chip microcomputer U2 the 8th pin and 5V voltage stabilizing diode D2 plus earth, the 2nd of single-chip microcomputer U2,3,5,6,7 pin are connected with the base stage of triode Q1-Q5 through exclusion R4 respectively, the collector of triode Q1-Q5 is connected the grounded emitter of triode Q1-Q5 through the LED 1-LED5 and the exclusion R5 of LED light fixture respectively with positive source.