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Lamp strip driven by constant-current power supply and lamp

A technology of constant current power supply and light strip, which is applied in the direction of electrical components, etc., can solve the problem that the effective utilization rate of light strip energy is only 75%

Pending Publication Date: 2021-09-07
SHANGHAI CANDOR OPTO ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

As shown in the figure below, V+, V- input 12V, the voltage drop of LED1-1, LED1-2, LED1-3 is 3V, R1 divides the voltage by 3V, and the voltage divided by R1 is all converted int

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  • Lamp strip driven by constant-current power supply and lamp
  • Lamp strip driven by constant-current power supply and lamp
  • Lamp strip driven by constant-current power supply and lamp

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Embodiment Construction

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0017] see figure 2 , a lamp strip and a lamp driven by a constant current power supply, comprising an LED constant current power supply 1 and a light strip 2, the LED constant current power supply 1 is connected to a voltage input, and the LED constant current power supply 1 outputs a constant current to the light strip 2.

[0018] The LED constant current power supply 1 includes a power conversion module 11, a single lamp current setting module 12, a signal...

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Abstract

The invention discloses a lamp strip driven by a constant-current power supply and a lamp, and belongs to the technical field of constant-voltage input lamps. The lamp strip comprises an LED constant-current power supply and a lamp strip, wherein the LED constant-current power supply is connected with voltage input, and the LED constant-current power supply outputs constant current to the lamp strip. According to the lamp strip and the lamp driven by the constant-current power supply, a power conversion module outputs corresponding current according to the control signal, the current of the LED is kept unchanged and the LED is changed at will under different LED conditions, and the circuit directly drives the LED through the LED constant-current power supply, so that a constant-current circuit in a single LED is reduced, the photoelectric conversion efficiency is greatly improved, the heat of the lamp is reduced, a constant-current loss circuit in a direct-current lamp is canceled, the constant current of each lamp is realized by using the lamp parallel-connection number detection resistors and the constant-current power supply, the lighting effect of lamp strip products is greatly improved, and the advantage that LEDs of the lamp strip lamps are randomly increased or decreased is reserved.

Description

technical field [0001] The invention relates to the technical field of constant voltage input lamps, in particular to a lamp strip and a lamp driven by a constant current power supply. Background technique [0002] Traditional DC voltage input lamps, such as figure 1 As shown, a constant voltage source is generally used for input, and a resistor or a chip is added to the circuit of each LED load to achieve a constant current. This method consumes a lot of power. As shown in the figure below, V+, V- input 12V, the voltage drop of LED1-1, LED1-2, LED1-3 is 3V, R1 divides the voltage by 3V, and the voltage divided by R1 is all converted into useless heat energy, so that the energy efficiency of the light strip can be effectively used. Only 75%, so most constant voltage lamps have a light effect of only about 70lm / W. Contents of the invention [0003] The object of the present invention is to provide a lamp strip and a lamp driven by a constant current power supply, so...

Claims

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Application Information

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IPC IPC(8): H05B45/30H05B45/345H05B45/37
CPCH05B45/30H05B45/345H05B45/37
Inventor 景晓汪潘飞
Owner SHANGHAI CANDOR OPTO ELECTRONICS TECH