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Low-voltage LED lamp band voltage stabilizing circuit

A technology of LED light strips and voltage stabilizing circuits, which is applied in the direction of electric light sources, electrical components, electroluminescent light sources, etc., and can solve the problem of yellowing and aging of the appearance of the light strip surface, voltage drop at the end of the light strip, and reducing the service life of the light strip, etc. problem, to achieve the effect of reducing reactive power consumption, high safety and prolonging service life

Pending Publication Date: 2020-02-11
ZHONGSHAN LANDE ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, in this way, the resistor itself consumes a lot of electricity, and the resistor is often burned due to high temperature. Working for a long time will make the surface of the light strip yellow and aging, reducing the service life of the light strip, and because of low voltage and high current, the length of the light strip exceeds 5 After 10 meters, the luminous flux at the tail becomes obviously dim or even not bright, and the voltage drop at the end of the light strip is obvious

Method used

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  • Low-voltage LED lamp band voltage stabilizing circuit

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Embodiment Construction

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that in the description of the present invention, the orientations or positional relationships indicated by the terms "front", "rear", etc. are based on the orientations or positions shown in the accompanying drawings. The relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or element must have a specific orientation, construction and operation in a specific manner, and thus should not be construed as a limitation of the present invention. The terms "first", "second", etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] Such as figure 1 As shown, a voltage stabilizing circuit for a low-voltage LED strip includes a boosting voltage stabilizing circuit ...

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Abstract

The invention discloses a low-voltage LED lamp band voltage stabilizing circuit. The low-voltage LED lamp band voltage stabilizing circuit comprises at least one voltage boosting and stabilizing circuit. The voltage boosting and stabilizing circuit comprises an inductor connected with an input end of a power supply, and the other end of the inductor is connected with a positive electrode of a voltage stabilizing component and an LX end of a switching type DC / DC voltage boosting and stabilizing chip controlled by PFM. A negative electrode of a voltage stabilizing diode is connected with an OUTend of a three-end voltage stabilizer and then is connected with a capacitor and at least one LED lamp string, and the other end of the capacitor is grounded. In the invention, reactive power consumption of a resistor can be reduced, heat from a lamp band resistor can be decreased, a service life of a lamp band can be prolonged, an overall line load can be reduced, automatic control boosting andvoltage stabilization are realized, efficiency and energy saving are achieved, and the improved lamp band is more stable in voltage and light color and longer in service life compared with the lamp band in the prior art.

Description

technical field [0001] The invention relates to an LED circuit, in particular to a voltage stabilizing circuit for a low-voltage LED lamp strip. Background technique [0002] LED light strip refers to the assembly of LED lamp beads on a strip-shaped FPC (flexible circuit board) or PCB hard board to form a light source like a strip, hence the name. The existing technology includes high-voltage light strips and low-voltage light strips. Compared with high-voltage light strips, low-voltage light strips have the advantages of good safety and low energy consumption. However, due to low voltage, the length of low-voltage light strips generally cannot exceed 5 meters. , otherwise there will be a situation where the head is bright and the tail is dark. In actual use, it needs to be connected to the power supply every 5 meters, which is very inconvenient. Further, when adjusting the brightness of the low-voltage light strip, it is realized by adjusting the current of the LED lamp be...

Claims

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Application Information

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IPC IPC(8): H05B33/08H05B44/00
CPCY02B20/30
Inventor 李雄伟姚锋
Owner ZHONGSHAN LANDE ELECTRONICS CO LTD
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