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A kind of LED power supply system and device

A technology for LED power supply and power supply system, which is applied in control/regulation systems, output power conversion devices, electrical components, etc., can solve problems such as loss of LED power supply systems, and achieve the effect of prolonging service life and reducing loss.

Active Publication Date: 2022-04-12
SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide an LED power supply system and device, aiming to solve the problem of loss in the use of LED power supply system

Method used

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  • A kind of LED power supply system and device
  • A kind of LED power supply system and device
  • A kind of LED power supply system and device

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Embodiment Construction

[0076] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0077] The main solution of the embodiment of the present invention is:

[0078] Since the existing LED power supply is powered by a combination of independent module power supplies, each module power supply is independent of each other and the constant current control circuit of the LED lamp does not participate in the power supply feedback adjustment, resulting in a complex power supply system, low efficiency, and large current heat loss.

[0079] The present invention provides a solution, by adjusting the power supply voltage of the LED lights in the LED power system circuit through the dual feedback power system circuit, and realizing the adjustment of the power supply voltage of the LED lights according to the difference of the LED lights in the LED power system, Thereby prolonging the service life of the LED lam...

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Abstract

The invention discloses an LED power supply system, which includes an electromagnetic interference EMI circuit, a rectification circuit, a power factor correction PFC circuit and a dual feedback power supply system circuit; the dual feedback power supply system circuit includes an LED control circuit and a feedback sub-circuit; The feedback subcircuit includes a primary feedback subcircuit and a secondary feedback subcircuit; the primary feedback subcircuit is used for adjusting the output voltage of the LED control circuit according to the voltage of the LED lamp and the secondary feedback subcircuit. The invention also discloses an LED power supply system device. The invention can adjust the power supply voltage of the LED lamp in the LED power supply system.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an LED power supply system and device. Background technique [0002] With the advent of the LED era, LEDs are becoming more and more widely used, especially Mini-LEDs or Micro-LEDs are used as backlight displays for high-power products. A large number of small-pitch LED beads can be used to achieve regional dimming in a smaller range. Moreover, due to the large number of backlight lamp beads and the high power supply, automatic control and adjustment cannot be performed, resulting in a large loss of devices in the LED circuit, which in turn leads to a short service life of the LED product. Contents of the invention [0003] The main purpose of the present invention is to provide an LED power supply system and device, aiming at solving the problem of loss in the operation of the LED power supply system. [0004] In order to achieve the above object, the present invention provi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B45/30H05B45/3725H02M3/00
CPCH02M3/00
Inventor 胡向峰盘桥富鲍晓杰李亚伟黄德强
Owner SHENZHEN SKYWORTH RGB ELECTRONICS CO LTD