CN205611005U

CN205611005U - Half -wave shunting LED lamp drive arrangement

Info

Publication number: CN205611005U
Application number: CN201620455654.8U
Authority: CN
Inventors: 黎辉; 赵龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-05-17
Filing date: 2016-05-17
Publication date: 2016-09-28
Anticipated expiration: 2026-05-17

Abstract

The utility model discloses a half -wave shunting LED lamp drive arrangement comprises with the half -wave branch circuit that connects in parallel at the power input end a LED lamp power supply circuit. Is LED lamp power supply circuit for being greater than 90 250VAC or 50 the NULL of 120VAC scope, the half -wave branch circuit connects in parallel LED lamp power supply circuit's AC input. The utility model discloses make full use of LED lamp power supply circuit wide region input voltage characteristic and connect in parallel the half -wave branch circuit of power supply circuit input is to the one -way reposition of redundant personnel power supply effect in LED lamp place alternating current return circuit, has realized conveniently that it establishes ties to utilize to realize the single live wire control to the LED lamp at the any controlling means with in a set of alternating current return circuit. The utility model discloses a simply, reliably, the single live wire control of LED lamp that has divided the convenient realization of stream mode of low -priced half -wave, have high using value in the aspect of intelligent house and intelligent lighting control.

Description

A kind of half-wave shunting LED driving means

Technical field

This utility model relates to Intelligent House Light control field, specifically a kind of half-wave shunting LED Driving lamp.

Background technology

LED the most quickly spreads to huge numbers of families, meanwhile, for LED etc. intelligent lighting controls product also Ordinary people man is spread to, if realizing illumination intelligence control on the premise of realizing motionless finishing quickly System, is necessary for using single live wire serial connection mounting means.At present, in electronics and the intelligence of single live wire serial connection installation Can control product, commonly used is to utilize the fine leak electric current of light fixture to provide single live wire control panel work The technology of electricity consumption, uses single live wire of this technology to control, light fixture when so-called "Off" state also It not closedown truly, but the fine energising shape that can't see light of the eye of people when minimum leakage current State.

But, if minimum " the most luminous " electric leakage of the leakage current of single live wire control panel and LED lamp When mating bad (this is common phenomenon) between stream, light arises that flicker state, and this has become as The most development obstacle that this industry is faced.

Utility model content

The purpose of this utility model is the wide-range input voltage characteristic utilizing LED, and uses diode Half-wave conducting principle realize in single loop by half-wave shunting in the way of, it is achieved to LED and with The control equipment of series connection realize completely self-contained half-wave and power.

Technical scheme is as follows:

A kind of half-wave shunting LED driving means, it is characterised in that include that at least one LED is driven Galvanic electricity source circuit and least one set half-wave shunt circuit；

Described LED drives power circuit to be defeated more than the exchange of 90-250VAC or 50-120VAC scope Entering, described half-wave shunt circuit is connected in parallel on described LED and drives the ac input end of power circuit.

Described half-wave shunt circuit be at least one ac circuit half-wave power shunt diode and at least one Can flow recovery protection device or circuit connected in series composition.When alternating current input is for positive half-wave, described exchange Loop half-wave power shunt diode conducting, for ac circuit provide half-wave power；When alternating current input is During negative half-wave, described ac circuit half-wave is powered shunt diode cut-off, and now, described LED drives Power circuit obtains half-wave supply input.

Described can flow recovery protection device or circuit include PTC thermistor, self-recoverage protective tube and Current foldback circuit；When the appearance in the conduction state short circuit of half-wave shunt circuit or over-current phenomenon avoidance, described Device or circuit can be protected by automatic cutoff circuit or to be in high-impedance state by flow recovery.

Beneficial effect:

This utility model takes full advantage of LED and drives the wide-range input voltage characteristic and also of power circuit It is associated in unidirectional point to alternating current loop, LED place of the half-wave shunt circuit driving power circuit input Flow independently-powered effect, conveniently achieve and utilize any control dress being connected in same group of alternating current loop Put and realize the control of the single live wire to LED.

Meanwhile, this utility model uses and device or circuit can be protected to can ensure that at mechanical switch short by flow recovery Overcurrent protection during road, thus realize intelligent control device and standard machinery compatible LED is returned of switch The control mode on road.

This utility model achieves LED easily by simple, reliable, cheap half-wave shunting mode Single live wire control, there is in terms of Smart Home and intelligent lighting controls high using value.

Accompanying drawing explanation

Fig. 1 is this utility model theory diagram.

Fig. 2 is that the single live wire smart machine for LED controls embodiment schematic diagram.

Fig. 3 is that this controls embodiment schematic diagram to the mechanical switch of LED.

Label represents: LED drives power circuit 101, and half-wave shunt circuit 201, ac circuit half-wave is powered Shunt diode 202, can flow recovery protection device or circuit 203, LED 301, half-wave shunting LED driving means 001, intelligent control device 002, LED loop shunt diode 401, controlled open Close element 501, intelligent control circuit 601, mechanical switch 502.

Detailed description of the invention

See Fig. 1, a kind of half-wave shunting LED driving means, it is characterised in that include at least one LED drives power circuit 101 and least one set half-wave shunt circuit 201.

Described LED drives power circuit 101 to be the alternating current more than 90-250VAC or 50-120VAC Pressure input (or DC output power) scope, described half-wave shunt circuit 201 is connected in parallel on described LED Drive the ac input end of power supply 101 circuit.

Described half-wave shunt circuit 201 at least one ac circuit half-wave power shunt diode 202 with At least one can protect device or circuit 203 to be composed in series by flow recovery.Can flow recovery protection device or Circuit refers to protect device or can protect device circuitry by flow recovery by flow recovery.

When alternating current input is for positive half-wave, described ac circuit half-wave shunt diode 202 of powering turns on, Half-wave is provided to power for ac circuit；When alternating current input is for negative half-wave, described ac circuit half-wave supplies Electricity shunt diode 202 ends, and now, described LED drives power circuit 101 to obtain half-wave and powers Input.

Described can protect device or circuit 203 to include that PTC thermistor, self-recoverage insure by flow recovery Pipe and current foldback circuit；When half-wave shunt circuit 201 is in the conduction state, short circuit or over-current phenomenon avoidance occur Time, described can flow recovery protection device or circuit 203 by automatic cutoff circuit or be in high-impedance state.

Embodiment one: the single live wire smart machine for LED controls application.

Seeing Fig. 2, half-wave shunting LED driving means 001 is serially connected with intelligent control device 002 LED loop shunt diode 401 in 220VAC alternating current loop, in described intelligent control device 002 Connect with controllable switch element 501, more in parallel with intelligent control circuit 601 after be serially connected with ac circuit it In.LED loop shunt diode 401 and ac circuit half-wave power shunt diode 202 in the loop Closure contrary.Controllable switch element 501 is controlled to implement LED by intelligent control circuit 601 Drive the on-off control in power circuit 101 loop.

When alternating current input is for positive half-wave, described ac circuit half-wave shunt diode 202 of powering turns on, Thering is provided half-wave to power for the intelligent control device 002 in ac circuit, now, LED loop shunts two poles Pipe 401 is in cut-off state, and no matter whether the controllable switch element 501 of series connection with it opens a way, intelligence control Circuit 601 processed all can obtain half-wave and power and be in running status；When alternating current input is for negative half-wave, Described ac circuit half-wave shunt diode 202 of powering ends, now, and LED loop shunt diode 401 conductings, when controllable switch element 501 is implemented " turning on light " control by intelligent control circuit 601, then control Making described controllable switch element 501 to turn on, described LED drives power circuit 101 to obtain half-wave and powers Input, makes LED 301 open, if controllable switch element 501 is implemented by intelligent control circuit 601 " turn off the light " control time, then control described controllable switch element 501 and open a way, described LED drive power supply Circuit 101 half-wave power failure, makes LED 301 close.

Due to described LED drive power circuit 101 be wide-range input voltage, therefore, when described can Control switch element 501 is when turning on, even if being powered shunting two by described ac circuit half-wave at exchange positive half-wave In the case of pole pipe 202 by-pass shunt, LED drives power circuit 101 still can persistently export, and keeps The opening of LED 301.

Embodiment two: the mechanical switch for LED controls application.

Seeing Fig. 3, half-wave shunting LED driving means 001 is connected on same with mechanical switch 502 Loop, when described mechanical switch 502 is closure state and alternating current input is positive half-wave, ac circuit Half-wave shunt diode 202 of powering turns on, and, can flow recovery protection device or circuit 203 enter meanwhile Open circuit or high-impedance state, be equivalent to loop open circuit；And alternating current input for negative half-wave time, then ac circuit Half-wave shunt diode 202 of powering ends, and now, LED drives power circuit 101 to obtain half-wave and powers, LED 301 is made to open.

When described mechanical switch 502 is open-circuit condition, whole loop disconnects, and LED drives power circuit 101 cannot obtain power supply, make LED 301 close.

In real case ac circuit half-wave power the closure of shunt diode can be with present case phase Instead.

Above double wavelength-division streaming LED driving means of this utility model case study on implementation is carried out detailed Jie Continue, for those skilled in the art, according to the thought of this utility model embodiment, in specific embodiment party All will change in formula and range of application, in sum, this specification content should not be construed as this The restriction of utility model.

Claims

1. a half-wave shunting LED driving means, it is characterised in that include that at least one LED is driven Galvanic electricity source circuit and least one set half-wave shunt circuit；

Described LED drives power circuit to be that the alternating voltage more than 90-250VAC or 50-120VAC is defeated Entering scope, described half-wave shunt circuit is connected in parallel on described LED and drives the ac input end of power circuit.

A kind of half-wave shunting LED driving means the most according to claim 1, it is characterised in that Described half-wave shunt circuit be at least one ac circuit half-wave power shunt diode can be extensive with at least one Multiple over-current protection device or circuit connected in series composition；When alternating current input is for positive half-wave, described ac circuit half Ripple power shunt diode conducting, for ac circuit provide half-wave power；When alternating current input is negative half-wave Time, described ac circuit half-wave power shunt diode cut-off, now, described LED drive power supply electricity Road obtains half-wave supply input.

A kind of half-wave shunting LED driving means the most according to claim 2, it is characterised in that Described can protect device or circuit include PTC thermistor, self-recoverage protective tube and cross stream by flow recovery Protection circuit；Short circuit occurs or during over-current phenomenon avoidance when half-wave shunt circuit is in the conduction state, described can be extensive Multiple over-current protection device or circuit by automatic cutoff circuit or are in high-impedance state.