Power supply feedback adjustment system and display screen

A technology of feedback adjustment and power supply module, which is applied in the direction of control/regulation system, adjustment of electrical variables, instruments, etc., and can solve the problems of low test efficiency and large error

Active Publication Date: 2019-09-20
UNILUMIN GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Based on this, it is necessary to provide a power supply feedback adjustment system and a display screen for the invention of the minimum power supply voltage measurement of light-emitting diodes, low test efficiency, and large errors.

Method used

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  • Power supply feedback adjustment system and display screen
  • Power supply feedback adjustment system and display screen
  • Power supply feedback adjustment system and display screen

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Embodiment Construction

[0021] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terms used herein are for the purpose of describing specific embodiments only, and are not intended to limit the present invention.

[0023] For example, a power supply feedback adjustment system is provided, including a processing module, a current detection module, ...

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Abstract

The invention provides a power supply feedback adjustment system and a display screen. The system includes a processing module, a current detection module, a constant current drive module and a voltage stabilizing power supply module; the voltage stabilizing power supply module supplies power for the constant current drive module, so that the constant current drive module can output current; and the processing module obtains the current output by the constant current drive module through the current detection module, obtains the transition voltage of the constant current drive module and the working voltage of light-emitting diodes according to the current output by the constant current drive module, and obtains the minimum supply voltage of the light-emitting diodes. Thus, the measuring of the minimum supply voltage of the light-emitting diodes can be realized, and the function of feedback adjustment can be realized by controlling the voltage stabilizing power supply module to output the supply voltage.

Description

technical field [0001] The invention relates to the technical field of power detection, in particular to a power supply feedback adjustment system and a display screen. Background technique [0002] LED display (Light Emitting Diode, light-emitting diode), as a new display technology, is more and more favored by users for its advantages of energy saving, environmental protection, and high brightness. Pixels are usually composed of green light-emitting diodes, blue light-emitting diodes and red light-emitting diodes. However, due to differences in the materials used to make light-emitting diodes of different colors, the minimum power supply voltage is different, that is, the minimum voltage value required to cause the light-emitting diodes to light up. Different, LEDs of the same color will also have differences in their minimum supply voltage due to different specifications. The luminous intensity of the diode is directly proportional to the required current value. When the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05F1/575G05F1/565
CPCG05F1/565G05F1/575
Inventor 雷松王金山
Owner UNILUMIN GRP
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