LED power circuit with dimming function

A technology of LED power supply and LED light group, which is applied in the field of power supply circuit, can solve the problems of large volume of LED lighting equipment, complex power supply circuit, and large occupied space, and achieve the effects of small occupied space, simple circuit structure and high practicability

Inactive Publication Date: 2017-05-31
HUIZHOU YOUTECH OPTOELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The power circuit is relatively complex. Generally speaking, the power circuit includes a rectifier module, a sampling module, a control module, and a lighting module. The internal circuit connection is more complicated and takes up more space.
More importantly, the existing power supply circuit cannot realize the dimming function. It needs a special dimming circuit, and then cooperates with an external dimming switch to realize the dimming function. If the dimming circuit is added, the It will make the power circuit more complicated, and the LED lighting equipment will be bulky

Method used

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  • LED power circuit with dimming function
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Embodiment Construction

[0024] 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.

[0025] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of ill...

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PUM

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Abstract

The invention discloses an LED power circuit with dimming function, comprising an input protection unit, a current-limiting buck module, an adjustable light rectifier chip, a voltage dividing unit and an LED set; the input end of the input protection unit is connected with an alternating current power source, the output end of the input protection unit is connected with the current-limiting buck module and the adjustable light rectifier chip sequentially, two output ends of the adjustable light rectifier chip are connected with the input end of the voltage dividing unit and one input end of the LED set respectively, and the output end of the voltage dividing unit is connected with the other input end of the LED set. The invention discloses the LED power circuit with dimming function which is provided with the adjustable light rectifier chip and fitly and externally connected with an electronic ballast and a dimmer, and dimming can be provided for the LED set. Adding a dimming circuit to the power circuit is not required any longer; compared with existing power circuits, the LED power circuit is simple in structure and high in practicality, and components use small space.

Description

technical field [0001] The invention relates to a power supply circuit, in particular to an LED power supply circuit with dimming function. Background technique [0002] LED is known as a green light source in the field of lighting systems. It has the characteristics of energy saving, environmental protection, long life, and small size. It is widely used in various indications, displays, decorations, backlights, general lighting, and urban night scenes. Because of the energy-saving and high-efficiency characteristics of LED, LED lighting will gradually become the mainstream of lighting technology development in today's rising calls for energy saving and emission reduction. my country's LED industry has also entered a stage of accelerated development. [0003] At present, all LED lighting devices are equipped with power circuits. The power circuit is relatively complex. Generally speaking, the power circuit includes a rectifier module, a sampling module, a control module an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/50H05B45/37Y02B20/30
Inventor 孙雪刚
Owner HUIZHOU YOUTECH OPTOELECTRONICS TECH
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