CN218587363U

CN218587363U - Low-voltage lamp strip

Info

Publication number: CN218587363U
Application number: CN202222217358.2U
Authority: CN
Inventors: 王图江
Original assignee: Shenzhen Guoying Optoelectronics Co ltd
Current assignee: Shenzhen Guoying Optoelectronics Co ltd
Priority date: 2022-08-22
Filing date: 2022-08-22
Publication date: 2023-03-07
Anticipated expiration: 2032-08-22

Abstract

The utility model provides a low-voltage lamp area, including bridge rectifier DB1, electric capacity C1, LED lamp cluster S1, triode Q2, resistance R1 and resistance R2, wherein, bridge rectifier DB1 'S pin 1 and pin 3 meet with the power respectively, bridge rectifier DB 1' S pin 2 ground connection, bridge rectifier DB1 'S pin 4 with LED lamp cluster S1' S anodal is connected, LED lamp cluster S1 'S negative pole with triode Q2' S collecting electrode is connected, triode Q2 'S base with resistance R1' S one end is connected, resistance R1 'S the other end with LED lamp cluster S1' S anodal is connected. The utility model has the advantages that: the LED constant-voltage power supply has the advantages that an AC or DC power supply can be adopted, the power supply selection is more diversified, the LED constant-voltage power supply has advantages compared with the traditional constant-voltage power supply soft lamp, the positive polarity and the negative polarity do not need to be distinguished, wiring can be conducted randomly, a transistor is adopted to be stable in constant current, and the service life of an LED can be guaranteed after the LED is lightened for a long time.

Description

Low-voltage lamp strip

Technical Field

The utility model relates to a lighting device especially relates to a low pressure lamp area.

Background

The existing low-voltage lamp strip is a low-voltage constant-voltage power supply, the application is limited by the type of the power supply, the positive polarity and the negative polarity need to be distinguished in wiring, and the service life is short.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model provides a low-voltage lamp area.

The utility model provides a low-voltage lamp area, including bridge pile DB1, electric capacity C1, LED lamp cluster S1, triode Q2, resistance R1 and resistance R2, wherein, bridge pile DB1 'S pin 1 and pin 3 meet with the power respectively, bridge pile DB 1' S pin 2 ground connection, bridge pile DB1 'S pin 4 with LED lamp cluster S1' S anodal is connected, LED lamp cluster S1 'S negative pole with triode Q2' S collecting electrode is connected, triode Q2 'S base with resistance R1' S one end is connected, resistance R1 'S the other end with LED lamp cluster S1' S anodal is connected, ground connection behind triode Q2 'S projecting pole resistance R2, electric capacity C1' S one end with LED lamp cluster S1 'S anodal is connected, electric capacity C1' S other end ground connection.

As a further improvement of the utility model, low pressure lamp area still includes triode Q1 and triode Q3, triode Q1 ' S collecting electrode with triode Q2 ' S base meets, triode Q1 ' S projecting pole ground connection, triode Q1 ' S base with triode Q3 ' S projecting pole meets, triode Q3 ' S base with triode Q2 ' S base meets, triode Q3 ' S collecting electrode with LED lamp cluster S1 ' S negative pole meets.

As a further improvement of the present invention, the triodes Q1, Q2 and Q3 are NPN type.

The utility model has the advantages that: through above-mentioned scheme, can adopt AC or DC power, the power selection is more diversified, has the advantage than traditional soft lamp area of constant voltage power supply to, need not distinguish positive negative polarity, can wiring wantonly, it is stable to adopt the transistor to do the constant current, and LED lights for a long time and can guarantee life.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other solutions can be obtained according to the drawings without creative efforts.

Fig. 1 is a circuit diagram of a low-voltage lamp strip of the present invention.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the scope of the invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be further described with reference to the following description and embodiments.

As shown in fig. 1, a low-voltage lamp belt comprises a bridge pile DB1, a capacitor C1, an LED lamp string S1, a triode Q2, a resistor R1 and a resistor R2, wherein, a pin 1 and a pin 3 of the bridge pile DB1 are respectively connected with a power supply, a pin 2 of the bridge pile DB1 is grounded, a pin 4 of the bridge pile DB1 is connected with a positive electrode of the LED lamp string S1, a negative electrode of the LED lamp string S1 is connected with a collector electrode of the triode Q2, a base electrode of the triode Q2 is connected with one end of the resistor R1, the other end of the resistor R1 is connected with a positive electrode of the LED lamp string S1, an emitting electrode of the triode Q2 is grounded after being connected with the resistor R2, one end of the capacitor C1 is connected with a positive electrode of the LED lamp string S1, and the other end of the capacitor C1 is grounded.

The low-voltage lamp belt further comprises a triode Q1 and a triode Q3, wherein a collector of the triode Q1 is connected with a base of the triode Q2, an emitting electrode of the triode Q1 is grounded, a base of the triode Q1 is connected with an emitting electrode of the triode Q3, a base of the triode Q3 is connected with a base of the triode Q2, and a collector of the triode Q3 is connected with a negative electrode of the LED lamp string S1.

The triode Q1, the triode Q2 and the triode Q3 are all NPN type.

The LED lamp string S1 comprises a plurality of LED lamp beads connected in series.

The bridge stack DB1 includes a diode D1, a diode D2, a diode D3, and a diode D4.

The utility model provides a pair of low pressure lamp area has following advantage:

1, the input voltage is 5-60V, the AC/DC universal input is more diversified, and the AC/DC universal input has advantages over a single soft lamp which only can be used as a constant voltage power supply, and has the advantages that the AC/DC universal input does not need to be divided into positive and negative polarities, and two lines are randomly connected.

2, set up electric capacity C1 and can filter the clutter, increase the effect of adjusting luminance to, if there are N electric capacity C1 independently to connect in parallel together, that capacitance value can increase, and the appearance value of electric capacity increases when some controllers of matching of certain degree adjust luminance, adjusts unresponsively, consequently, can reach the effect of adjusting luminance through reducing electric capacity value.

And 3, the rear-stage circuit adopts a transistor as a constant current to be stable, and the LED is used for long-term lighting, so that the service life is ensured. The resistor R2 is adopted to adjust the current (under the condition that the lamp strip uses different powers, the current is adjusted), and the resistor R1 is subjected to voltage reduction control to be subjected to upper point voltage control of the transistor. The triode Q2 and the triode Q3 are used together for standby purpose of extra-large current.

And 4, the input voltage is 5-60V, and the number of the LED lamp beads LED1-LEDN is determined.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. A low-voltage lamp strip is characterized in that: including bridge rectifier DB1, electric capacity C1, LED lamp cluster S1, triode Q2, resistance R1 and resistance R2, wherein, bridge rectifier DB1 'S pin 1 and pin 3 connect with the power respectively, bridge rectifier DB 1' S pin 2 ground connection, bridge rectifier DB1 'S pin 4 with LED lamp cluster S1' S anodal is connected, LED lamp cluster S1 'S negative pole with triode Q2' S collecting electrode is connected, triode Q2 'S base with resistance R1' S one end is connected, resistance R1 'S the other end with LED lamp cluster S1' S anodal is connected, triode Q2 'S projecting pole ground connection resistance R2 back ground connection, electric capacity C1' S one end with LED lamp cluster S1 'S anodal is connected, electric capacity C1' S other end ground connection.

2. A low-voltage light strip according to claim 1, characterized in that: the low-voltage lamp belt further comprises a triode Q1 and a triode Q3, wherein a collector of the triode Q1 is connected with a base of the triode Q2, an emitting electrode of the triode Q1 is grounded, a base of the triode Q1 is connected with an emitting electrode of the triode Q3, a base of the triode Q3 is connected with a base of the triode Q2, and a collector of the triode Q3 is connected with a negative electrode of the LED lamp string S1.

3. A low-voltage light strip according to claim 2, characterized in that: the triode Q1, the triode Q2 and the triode Q3 are all NPN type.