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Digital fine contrast (DFC) magnetic core for light-emitting diode (LED) choking coil

A choke coil and magnetic core technology, which is applied in the direction of inductance with magnetic core, transformer/inductor magnetic core, etc., can solve the problems of leakage inductance, complex magnetic core, and reduced lighting efficiency during the use of the magnetic core, so as to reduce the product Power consumption, magnetic core structure optimization, the effect of improving lighting efficiency

Inactive Publication Date: 2015-11-25
徐同宁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The LED lighting drive circuit needs to use a magnetic core with a complex shape. Due to some defects in the design of the previous magnetic core, the magnetic core has leakage inductance during use, which greatly increases the power consumption of the product and reduces the lighting efficiency.

Method used

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  • Digital fine contrast (DFC) magnetic core for light-emitting diode (LED) choking coil

Examples

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Embodiment Construction

[0008] The technical solution adopted in the present invention is: a DFC magnetic core for LED choke coils, the magnetic core includes semi-elliptical side legs (1), rectangular parallelepiped central column (2), elliptical central column (3), rectangular parallelepiped side legs (4) and the bottom plate (5). The magnetic core is sintered from ferrite material, or pressed from metal soft magnetic powder.

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Abstract

The invention discloses a digital fine contrast (DFC) magnetic core for a light-emitting diode (LED) choking coil. The magnetic core comprises a semielliptical side leg (1), a cuboid center post (2), an elliptic center post (3), a cuboid side leg (4) and a bottom plate (5). The magnetic core is formed by sintering a ferrite material or by pressing metal soft magnetic powder.

Description

technical field [0001] The invention relates to a magnetic core, in particular to a DFC magnetic core for LED choke coils. Background technique [0002] The LED lighting drive circuit needs to use a magnetic core with a complex shape. Due to some defects in the design of the previous magnetic core, the magnetic core has leakage inductance during use, which greatly increases the power consumption of the product and reduces the lighting efficiency. In order to solve this problem, the magnetic core can meet the design requirements by optimizing the design of the magnetic core structure. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, and provide a magnetic core that can be applied to LED lighting driving circuits and can be manufactured in large quantities at low cost. [0004] The technical solution adopted in the present invention is: a DFC magnetic core for LED choke coils, th...

Claims

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Application Information

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IPC IPC(8): H01F27/24H01F17/04
Inventor 徐同宁
Owner 徐同宁
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