CN201515527U

CN201515527U - LED fluorescent lamp tube circuit

Info

Publication number: CN201515527U
Application number: CN2009201950580U
Authority: CN
Inventors: 樊邦扬
Original assignee: Heshan Lide Electronic Enterprise Co Ltd
Current assignee: Heshan Lide Electronic Enterprise Co Ltd
Priority date: 2009-09-17
Filing date: 2009-09-17
Publication date: 2010-06-23
Anticipated expiration: 2019-09-17

Abstract

The utility model discloses an LED fluorescent lamp tube circuit comprising an AC input end, a rectifying module, a filter module and an LED load which are connected in sequence. As the fluorescent lamp tube circuit adopts an inductive ballast which is same as the existing traditional fluorescent lamp, the LED fluorescent lamp tube circuit does not need to modify the original circuit when the LED fluorescent lamp tube is installed, simplifies the installation process of the lamp, and can be directly installed and used; and simultaneously, the LED fluorescent lamp tube circuit does not need to produce electronic ballasts, can directly adopt the inductive ballast in the installing seat of the traditional fluorescent lamp, save the production and manufacture costs, and can really realize general matching and general use of the LED fluorescent lamp tube and the traditional fluorescent lamp.

Description

A kind of LED fluorescent tube circuit

[affiliated technical field]

The utility model relates to a kind of fluorescent tube circuit, refers in particular to a kind of LED fluorescent tube circuit.

[background technology]

LED as the 4th generation lighting source begin to enter common lighting field with its advantages of energy saving and environmental protection, be the approval that the house illuminating product of representative has obtained market with the LED fluorescent tube.Existing fluorescent lamp divides electronic ballasting and inductance type ballast, and LED fluorescent tube product all adopts is electric ballast, this makes also must rectify and improve original circuit when adopting the LED fluorescent tube to change traditional daylight light fixture, change electric ballast, this has caused inconvenience for installing and using of LED fluorescent tube, and the electric ballast cost of manufacture is higher than Inductive ballast far away, the manufacturing cost of light fixture itself is increased, so people are badly in need of the LED fluorescent tube circuit that a kind of cost of manufacture is cheap, be convenient to change traditional inductance type fluorescent lamp.

[utility model content]

In order to solve the problems of the technologies described above, the purpose of this utility model is to provide the LED fluorescent tube circuit that a kind of cost of manufacture is cheap, be convenient to change traditional electrical minor fluorescent lamp.

The utility model is that to reach the technical scheme that above-mentioned technical purpose adopts be a kind of LED fluorescent tube circuit, it is characterized in that this circuit comprises AC input, rectification module, filtration module and the LED load that connects successively.

The utility model beneficial effect compared with prior art is: because fluorescent tube circuit of the present utility model can adopt and the identical Inductive ballast of existing traditional fluorescent lamp pipe, when being installed, the LED fluorescent tube need not to rectify and improve original circuit, simplified the lamp installation process, can directly install and use; Need not to produce electric ballast simultaneously, can directly adopt the inductance rectifier in the traditional fluorescent lamp tool pipe mount pad, saved and manufactured cost; The wildcard that can really realize LED fluorescent tube and traditional fluorescent lamp tool by this circuit is general.

Preferably, described LED load is composed in series by a plurality of LED luminescence units, and described LED luminescence unit comprises LED module and voltage stabilizing didoe, described LED module and voltage stabilizing didoe reverse parallel connection.

Preferably, described LED module comprises at least two LED that are connected in parallel.

Preferably, described filtration module comprises the filter resistance parallel with one another and second filter capacitor.

Preferably, also be in series with first voltage stabilizing didoe between described rectification module and the filtration module.

[description of drawings]

Fig. 1 is the structured flowchart of the utility model circuit.

Fig. 2 is the schematic diagram of the utility model circuit.

Fig. 3 is a fundamental diagram of the present utility model.

[embodiment]

In order more clearly to introduce the utility model, circuit structure of the present utility model is done further detailed description below in conjunction with accompanying drawing.

As shown in Figure 1, circuit of the present utility model comprises connection successively: AC input S1, rectification module B, filtration module E and LED load F.

As shown in Figure 2: circuit of the present utility model comprises AC input (live wire L, zero line N), the rectification module B that is connected with AC input link, described rectification module B comprises a bridge rectifier Q and the first voltage stabilizing didoe D1 that is connected with bridge rectifier Q negative pole link d, the positive terminal ground connection of the described first voltage stabilizing didoe D1; The cathode output end b of described rectifier bridge Q connects the second voltage stabilizing didoe D2, and the output of the described second voltage stabilizing didoe D2 connects filtration module E; This filtration module E comprises the filter resistance R parallel with one another and the second filter capacitor C2, and the described second filter capacitor C2 adopts electrochemical capacitor, the output connection LED of filtration module E load F, the negative pole end ground connection of described LED load F; Described LED load F is composed in series by a plurality of LED luminescence unit G, and described LED luminescence unit G comprises reverse parallel connection LED module M and voltage stabilizing didoe D together; Described LED module M comprises at least two LED that are connected in parallel, and above-mentioned voltage stabilizing didoe D has the effect of by-path turn-on, thereby has improved the service efficiency of entire circuit.

As shown in Figure 3: the fundamental diagram that Figure 3 shows that the external Inductive ballast of LED fluorescent tube of the present utility model, specifically comprise AC power supplies S, the ballast filtration module W that is connected with AC power supplies S, described ballast filtration module W comprises ballast inductance L1 and the first filter capacitor C1 that is connected with ballast inductance L1, and the output of described ballast filtering mould W connects the AC input of the utility model LED fluorescent tube circuit.

Because fluorescent tube circuit of the present utility model has adopted and the identical Inductive ballast of existing traditional fluorescent lamp tool, when being installed, the LED fluorescent tube need not to rectify and improve original circuit, simplified the lamp installation process, can directly install and use; Need not to produce electric ballast simultaneously, can directly adopt the Inductive ballast in the traditional fluorescent lamp tool mount pad, saved and manufactured cost; Can realize really that by this circuit the wildcard of LED fluorescent tube is general.

Above only the act the present invention in the spiritual category that does not break away from the utility model creation, is familiar with any simple modification and the distortion that those skilled in the art did of this technology conveniently to illustrate, still belongs to protection range of the present utility model.

Claims

1. a LED fluorescent tube circuit is characterized in that, this circuit comprises AC input (S1), rectification module (B), filtration module (E) and the LED load (F) that connects successively.

2. a kind of LED fluorescent tube pipe circuit according to claim 1, it is characterized in that, described LED load (F) is composed in series by a plurality of LED luminescence units (G), described LED luminescence unit (G) comprises LED module (M) and voltage stabilizing didoe (D), described LED module (M) and voltage stabilizing didoe (D) reverse parallel connection.

3. a kind of LED fluorescent tube circuit according to claim 2 is characterized in that described LED module (M) comprises at least two LED that are connected in parallel.

4. a kind of LED fluorescent tube circuit according to claim 3 is characterized in that described filtration module (E) comprises filter resistance parallel with one another (R) and second filter capacitor (C2).

5. a kind of LED fluorescent tube circuit according to claim 4 is characterized in that, also is in series with first voltage stabilizing didoe (D1) between described rectifier bridge (Q) and the filtration module (E).