LED driving power supply circuit

A technology of LED driving and power supply circuits, applied in the field of power electronics, to achieve the effects of optimizing structural design, reducing costs, and saving interfaces and connecting lines

Active Publication Date: 2018-07-24
深圳茂硕电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present invention provides an LED driving power circuit, aiming to solve the technical problem that LED driving power circuits in the prior art need to lead out at least three two-core wires when realizing the dimming function and the programmable function

Method used

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Embodiment Construction

[0020] 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 some of the embodiments of the present invention, but not all of them. 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.

[0021] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude one or Presence or addition of multiple other features, integers, steps, operations, elements, components and / or collections thereof.

[0022] It should also be understood that the terminology used ...

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Abstract

The invention discloses an LED driving power supply circuit, which comprises a light modulation unit, a control unit, a communication unit and a power supply unit, wherein the light modulation unit isused for receiving a first light modulation signal sent by a light modulator and filtering the first light modulation signal; the control unit is connected with the light modulation unit, and is usedfor outputting a second light modulation signal to power supply voltage for light modulation according to the first light modulation signal and communicating with a CD-R machine to output a corresponding feedback signal according to a burning signal sent by the CD-R machine; the communication unit is connected with the control unit, and is used for feeding back the feedback signal output by the control unit to the CD-R machine; the power supply unit is connected with the control unit, and is used for supplying power to the control unit; and the light modulation unit, the control unit, the power supply unit and the communication unit are all connected to a multiplex interface for connection of the light modulator or the CD-R machine. The number of interfaces and the number of connection wires can be reduced; the cost can be reduced; and the structural design can be optimized.

Description

technical field [0001] The invention relates to the technical field of power electronics, in particular to an LED driving power supply circuit. Background technique [0002] With the development of science and technology and economy, LED has been widely used in people's daily life. LED has the advantages of energy saving, environmental protection, long service life and high luminous efficiency. As the energy source of LED, LED driving power circuit occupies an important position in the field of LED technology. very important position. Generally, the LED drive power supply circuit has a dimming function and a programmable function. The dimming function specifically means that the dimmer is connected to the dimming interface of the LED drive power supply circuit, and the output current of the power supply is changed by changing the voltage or duty cycle, thereby controlling the LED. The lamps are dimmed; the programming function specifically means that the programmer can be p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B33/08H05B44/00
CPCH05B45/00
Inventor 张杨刘建铨王畅邓勇王华轶
Owner 深圳茂硕电子科技有限公司
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