CN101577999A

CN101577999A - Circuit device of light-emitting diode (LED) drive stabilizing system

Info

Publication number: CN101577999A
Application number: CNA2008100972116A
Authority: CN
Inventors: 彭煜瀚
Original assignee: RUISHENG SCIENCE AND TECHNOLOGY Co Ltd; TOP-BOUND ENTERPRISE Co Ltd
Current assignee: RUISHENG SCIENCE AND TECHNOLOGY Co Ltd; TOP-BOUND ENTERPRISE Co Ltd
Priority date: 2008-05-06
Filing date: 2008-05-06
Publication date: 2009-11-11
Anticipated expiration: 2028-05-06
Also published as: CN101577999B

Abstract

The invention relates to a circuit device of a light-emitting diode (LED) drive stabilizing system, which mainly comprises an alternating current/direct current (AC/DC) controllable drive voltage source, a feedback drive controller, an LED modulation drive controller controllable drive voltage source and an LED assembly module device, wherein condition factors of the inner part are produced by integral or local set operation, and the outer part is connected with an input signal source according to characteristics of different attributes, thereby achieving the function of automatic adjustment so as to reduce the luminance brightness decay rate when the LED assembly module device is used for a long time, saving electric power loss and reducing the heat source production, and prolonging the service life of an LED.

Description

The circuit arrangement of light-emitting diode (LED) drive stabilizing system

Technical field

The present invention relates to the circuit arrangement that a kind of light-emitting diode (LED) drives stabilizing system, be meant a kind of except that its inner each condition element is produced by whole or local setting computing especially, also can be by the characteristic binding input signal source of outside according to the different attribute condition, and then reach self-adjusting function, when making the LED assembly module be installed on long-time use, can reduce the brightness rate of decay, save power loss and reduce thermal source producing, so can prolong the useful life of LED.

Background technology

Along with modern science and technology develops fast, commercially available illumination light source structure also replaces bulb and mercurous fluorescent tube with LED gradually, advantage such as do not feel well that mainly to be that power consumption is low because LED has, assembly life-span long, do not need warm lamp time, reaction speed can glimmer soon and not cause user is dazzling; Again because but little vibration resistance of its volume and volume production are easy, more can make very small dimensions or array type assembly in response to demand, so, can find that all LED is the main flow of following lighting source development in the utilization of 3C digital product, the light fixture of auto industry, the light source of decorative lamp etc.

The light emitting source of LED illumination has now reached the illumination effect of suitable brightness all, but mainly still have several technical problems to be overcome, it at first is the problem of associated components heat radiation, with the patent of common LED product and located by prior art on the market, major part all is devoted to improve the efficient of heat radiation, but though the correlation technique efficiently radiates heat, avoid temperature too high, but cause the power wastage of supplying with LED easily, and after long-time the use, the brightness rate of decay of this LED will improve gradually, further reduces useful life.

Again, the light emitting source that uses the LED illumination is as product, since its only can be with direct current but not alternating current as its power source, so if will make the thorough universalness of LED or substitute general household appliances illuminating product, problem can't be as if general electric equipment products on being to use, can use after being inserted in common any socket, and must add the transducer of one (AC/DC) AC-DC, so on using, its inconvenience is arranged.

Summary of the invention

Main purpose of the present invention aims to provide the circuit arrangement that a kind of light-emitting diode (LED) drives stabilizing system, can reduce the brightness rate of decay, prolongs the useful life of LED

An of the present invention purpose aims to provide the circuit arrangement that a kind of light-emitting diode (LED) drives stabilizing system, can save power loss and reduce thermal source to produce.

For reaching above-mentioned purpose, the present invention mainly comprises the controlled driving voltage of one (AC/DC) AC-DC source, should the controlled driving voltage of (AC/DC) AC-DC source be external and in the circuit arrangement in order to AC civil power alternating-current voltage source is changed into the DC direct voltage source, with the voltage source device of supply LED and other associated circuits device; The controlled driving voltage of one LED modulation driving control device source, when the controlled driving voltage of this LED modulation driving control device came from the controlled driving voltage of described (AC/DC) AC-DC source AC civil power alternating-current voltage source is changed into the DC direct voltage source, the power source after imposing a condition in order to the whole selectivity of the effective and stable quilt of further supply gave the voltage source of LED and other associated circuits device; One back coupling driving control device; When the AC electric main is connected in the controlled driving voltage of described (AC/DC) AC-DC source, to start this back coupling driving control device inside and begin action, in order to reaching short-circuit protection and just/negative supply reverse protection, and the loop state after can imposing a condition via the whole selectivity that its internal control circuit detects comparison interpretation LED light-emitting diode component modular device voluntarily; One outside adjusting device, this outside adjusting device are linked to the circuit arrangement outside, for outside input control signal source (I/O); And one in order to the illumination LED assembly module device.

In possible embodiments, the short-circuit protection of described back coupling driving control device and just/negative supply reverse protection function is only had an effect for installing and using Shi Caihui first.

In another possible embodiments, during the loop state of described back coupling driving control device after the whole selectivity that detects comparison interpretation LED light-emitting diode component modular device imposes a condition, its factors that imposes a condition such as comprising temperature, voltage, electric current, frequency, power and power-efficient that imposes a condition.

In a preferred embodiment, that described LED assembly module device can further be connected is dissimilar more than at least one, combination and shape be driven the LED light-emitting diode.

In a preferred embodiment, described LED assembly module device is can be further in parallel dissimilar more than at least one, combination and shape be driven the LED light-emitting diode.

In a preferred embodiment, described LED assembly module device further dissimilar more than at least two, the combination of connection in series-parallel and shape be driven the LED light-emitting diode.

In a possible embodiments, described outside adjusting device can be further changes its resistive impedance value between over the ground via the outside.

In a preferred embodiment, described AC civil power alternating current, LED assembly module device and outside adjusting device, use the connected mode of bus (Bus-line), carry out the signal output and the input of two-way one to multiple point with circuit arrangement, and accept the control and the detecting of the internal control circuit of back coupling driving control device.

When the present invention makes the LED assembly module be installed on long-time use, can reduce the brightness rate of decay, save power loss and reduce thermal source producing, so can prolong the useful life of LED.

Description of drawings

Fig. 1 is an internal structure calcspar of the present invention;

Fig. 2 is the internal structure circuit diagram of the present invention such as Fig. 1.

[primary clustering symbol description]

10.. (AC/DC) the controlled driving voltage of AC-DC source

20..LED the controlled driving voltage of modulation driving control device source

30.. back coupling driving control device

40..LED assembly module device

50.. outside adjusting device

Embodiment

For further to structure of the present invention, use and feature thereof darker one deck being arranged, clear and definite, full and accurate understanding and understanding are hence enumerated preferred embodiment, cooperate graphic being described in detail as follows:

At first see also shown in Figure 1, the present invention is the circuit arrangement that a kind of light-emitting diode (LED) drives stabilizing system, this circuit arrangement is with the controlled driving voltage of one (AC/DC) AC-DC source 10 external civil powers, the controlled driving voltage of described (AC/DC) AC-DC source 10 mainly is that AC civil power alternating-current voltage source is changed into the DC direct voltage source, so that the power supply that provides electric power to drive rear end LED assembly module device 40 and each other Drive and Control Circuit device that is associated of supply is used.

After circuit arrangement formed a path, the power source after the controlled driving voltage of LED modulation driving control device the source effective and stable whole selectivity of quilt of 20 further supplies imposes a condition gave the voltage source of LED and other associated circuits device.

Again, see also Fig. 2, when installing and using first, back coupling driving control device in the circuit arrangement 30 can start short-circuit protections and just/negative supply reverse protection function automatically.

This moment, control end was sent (Q8) that (Q5) that the corresponding forward of signalisation (OUT3) joins and negative sense join in advance, to action (ON) identification interpretation, the controlled driving voltage of same time LED modulation driving control device source 20 begins action, and detecting (REF2) end has or not pressure drop to produce, when if no pressure drop produces, then represent LED assembly module device 40 and dc power supply terminal just/negative polarity reversal connection, forward conducting.When conducting forward; to close the controlled driving voltage of LED modulation driving control device source 20 automatically; and make and feedback the control end of driving control device 30 and send (Q7) that (Q6) that reversal connection signalisation (OUT3) correspondence joins and negative sense join; to action (ON) identification interpretation, and just reach/negative supply oppositely reaches the power supply short circuit automatic protection functions.

Described defencive function is the destruction in order to prevent that external force from causing mainly, also be and prevent that circuit arrangement is opened the integrality that causes short circuit, opens (breaking) road or even destruction functional structure, prevent that destroyed function from then being by feedbacking tie point being set all around and contacting of external agency's structure that driving control device 30 internal control circuits are guided out one to multiple end points and this creation intact device, and detect voluntarily via back coupling driving control device 30 internal control circuits, so that whether the device of this creation of identification interpretation is complete; In like manner, driving control device 30 internal control circuits are guided out one to multiple end points and LED assembly module device 40 interior set tie points link by feedbacking according to aforementioned manner, can detect voluntarily by back coupling driving control device 30 internal control circuits, and whether this LED assembly module device 40 of identification interpretation is specially appointed by the intact device of this creation.

Confirm as mentioned above errorless after, after the REF1 of back coupling driving control device 30 end is detected the voltage condition of the LED assembly module device of flowing through, again by feedbacking the internal control circuit of driving control device 30, according to it by the whole selectivity required characteristic in back that imposes a condition, comprise temperature, voltage, electric current, frequency, the factor that imposes a condition such as power and power-efficient, adjust the driving source of the required power of LED assembly module device 40 ends, and, detect the loop state after the whole selectivity of comparing interpretation LED assembly module device 40 imposes a condition voluntarily via feedbacking driving control device 30 internal control circuits.

Again, the LED assembly module device 40 of icon can be required according to actual state, one of serial or parallel connection or most LED light-emitting diode, but the also LED light-emitting diode of connection in series-parallel assembling more than two.

In addition, this is created to connect in the outside and establishes an outside adjusting device 50, and this outside adjusting device 50 comprises

And Two parts; At first should

The major function of part, for an input control signal source of this end points (I/O) is provided, just can be initiatively via feedbacking driving control device 30 internal control circuits, adjust the whole selectivity of quilt value of imposing a condition (being signal) that institute's desire is used, and this selected whole selectivity value of imposing a condition (being signal), can add at least more than one R (resistive impedance value) via this intact device in the outside, the voltage source potential difference that produces at least more than one adjust conversion and selection.

Again, described

The major function of part, be earlier via the outside change its over the ground (

) between the resistive impedance value after, produce at least more than one voltage source potential difference, after see through the driving control device 30 inner parameter systems itself of feedbacking again, go to calculate automatically inside itself The whole selectivity of quilt value of imposing a condition (being signal), use voluntarily and to detect comparison.And by the difference of its interpretation value, in the factors that impose a condition such as representation temperature, voltage, electric current, frequency, power and power-efficient, the set-up function that change adjustment is also different.

Again, described AC civil power alternating current, LED assembly module device 40 and outside adjusting device 50, use the connected mode of bus (Bus-line), carry out the signal output and the input of two-way one to multiple point with circuit arrangement, and accept the control and the detecting of the internal control circuit of back coupling driving control device 30.

The present invention thereby form the circuit arrangement that a light-emitting diode (LED) drives stabilizing system, by its self-adjusting function, when making the LED assembly module be installed on long-time use, can reduce the brightness rate of decay, save power loss and reduce thermal source producing, so can prolong the useful life of LED.

The above person of thought, it only is preferred embodiment of the present invention, when not limiting scope of the invention process with this, promptly the simple equivalent of being done according to the present patent application claim and description of the invention content generally changes and modifies, and all must include in the present patent application claim.

Claims

1, a kind of light-emitting diode (LED) drives the circuit arrangement of stabilizing system, and this circuit arrangement mainly comprises:

The controlled driving voltage of one (AC/DC) AC-DC source, should the controlled driving voltage of (AC/DC) AC-DC source be external and in order to AC civil power alternating-current voltage source is changed into the DC direct voltage source in the circuit arrangement, with the device of the voltage source of supply LED and other associated circuits device;

The controlled driving voltage of one LED modulation driving control device source, when the controlled driving voltage of this LED modulation driving control device came from the controlled driving voltage of described (AC/DC) AC-DC source AC civil power alternating-current voltage source is changed into the DC direct voltage source, the power source after imposing a condition in order to the whole selectivity of the effective and stable quilt of further supply gave the voltage source of LED and other associated circuits device;

One back coupling driving control device, when the AC electric main is connected in the controlled driving voltage of described (AC/DC) AC-DC source, to start this back coupling driving control device inside and begin action, in order to reaching short-circuit protection and just/negative supply reverse protection, and the loop state after can imposing a condition via the whole selectivity that its internal control circuit detects comparison interpretation LED light-emitting diode component modular device voluntarily;

One outside adjusting device, this outside adjusting device are linked to the circuit arrangement outside, for outside input control signal source (I/O); And

One LED assembly module device in order to illumination.

2, light-emitting diode according to claim 1 (LED) drives the circuit arrangement of stabilizing system, it is characterized in that: this back coupling driving control device contain when installing first short-circuit protection and just/negative supply reverse protection device.

3, light-emitting diode according to claim 1 (LED) drives the circuit arrangement of stabilizing system, it is characterized in that: during the loop state of this back coupling driving control device after the whole selectivity that detects comparison interpretation LED light-emitting diode component modular device imposes a condition, its factors that imposes a condition such as comprising temperature, voltage, electric current, frequency, power and power-efficient that imposes a condition.

4, light-emitting diode according to claim 1 (LED) drives the circuit arrangement of stabilizing system, it is characterized in that: what this LED assembly module device can further be connected dissimilar more than at least one, combination and shape is driven the LED light-emitting diode.

5, light-emitting diode according to claim 1 (LED) drives the circuit arrangement of stabilizing system, it is characterized in that: this LED assembly module device further dissimilar more than at least one, the combination of parallel connection and shape be driven the LED light-emitting diode.

6, light-emitting diode according to claim 1 (LED) drives the circuit arrangement of stabilizing system, it is characterized in that: this LED assembly module device further dissimilar more than at least two, the combination of connection in series-parallel and shape be driven the LED light-emitting diode.

7, light-emitting diode according to claim 1 (LED) drives the circuit arrangement of stabilizing system, it is characterized in that: this outside adjusting device can be further changes its resistive impedance value between over the ground via the outside.

8, light-emitting diode according to claim 1 (LED) drives the circuit arrangement of stabilizing system, it is characterized in that: this AC civil power alternating current, LED assembly module device and outside adjusting device, use the connected mode of bus (Bus-line), carry out the signal output and the input of two-way one to multiple point with circuit arrangement, and accept the control and the detecting of the internal control circuit of back coupling driving control device.