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Multichannel flyback-type light-emitting dioxide (LED) large-power drive circuit

A power drive circuit and drive circuit technology, applied in the field of circuits, can solve the problem that the "flyback" circuit cannot output high power and so on

Inactive Publication Date: 2013-06-12
佛山市华全电气照明有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention proposes a multi-channel counterattack LED high-power drive circuit, which solves the problem that the "flyback" circuit cannot be used to output high power in the prior art

Method used

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  • Multichannel flyback-type light-emitting dioxide (LED) large-power drive circuit

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Embodiment Construction

[0013] 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 creative efforts fall within the protection scope of the present invention.

[0014] A multi-channel flyback LED high-power drive circuit, the drive circuit is a topological structure formed by connecting the ends of multiple single-end flyback power drive circuits in parallel.

[0015] Preferably, the output power of each flyback power drive circuit is the same.

[0016] Preferably, the output power of each flyback power drive circuit is 50w.

[0017] Preferably, the driving circuit is provided with a sampling point.

[0018] Preferably, ...

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Abstract

The invention provides a multichannel flyback-type light-emitting dioxide (LED) large-power drive circuit. The multichannel single-end flyback-type power drives the circuit end to be connected in parallel and a topological structure is formed. The multichannel flyback-type LED large-power drive circuit solves the problem that in the prior art, the flyback-type circuit cannot be used for outputting the large power.

Description

technical field [0001] The invention relates to a circuit, in particular to a multi-channel flyback LED high-power driving circuit. Background technique [0002] "Flyback" switching power supply has the characteristics of simple circuit, reliable operation, low cost and easy to master, so the flyback circuit is widely used in the design of various LED drive power supplies. However, the current "flyback" circuit is difficult to increase the power due to the limitation of the principle and devices. Therefore, high power such as LED drive power above 100w often cannot be realized with the "flyback" circuit, and only multi-flyback circuits can be used. Waiting for other circuit methods to realize, but this will lead to a substantial increase in cost, and a large number of electronic components will also lead to a decrease in reliability. Contents of the invention [0003] The invention proposes a multi-channel counter-attack LED high-power drive circuit, which solves the prob...

Claims

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Application Information

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IPC IPC(8): H05B37/02
Inventor 区志杨
Owner 佛山市华全电气照明有限公司