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LED driving power supply meeting European Union standard

A technology of LED driving and power supply, which is applied to the use of electrical components, semiconductor lamps, and output power conversion devices, etc., to achieve the effects of suppressing decline, saving costs, and reducing volume

Inactive Publication Date: 2021-01-29
佛山市旺科电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] The time for ErP2.0 and EN61000-3-2:2019 to be enforced is getting closer and closer, but there is no flyback converter PWM chip design on the market that meets ErP2.0 and EN61000-3-2 at the same time: 2019 standard 5~25W low-power LED drive power supply, this invention came into being in this severe window period

Method used

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  • LED driving power supply meeting European Union standard
  • LED driving power supply meeting European Union standard
  • LED driving power supply meeting European Union standard

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Embodiment Construction

[0044] 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 making creative efforts belong to the protection scope of the present invention.

[0045] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "another end" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that ...

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Abstract

The invention discloses an LED driving power supply meeting the European Union standard, which comprises a power supply body, an input module, a PCB, a charging pump module, an energy storage filtering module, an output module, a transformer module, a bridge rectifier module and an EMI filtering module, and is characterized in that the PCB is arranged in the power supply body, and the input moduleis arranged on the upper surface of the PCB; and an output module is arranged at the end, away from the input module, of the PCB, the input module and the output module are symmetrically distributedat the two ends of the PCB, and a charging pump module, an energy storage filtering module, a transformer module, a bridge rectifier module and an EMI filtering module are arranged on the two sides ofthe PCB respectively. The third harmonic current is less than or equal to 86%, and the fifth harmonic current is less than or equal to 61%; and in addition, the waveform of the input current is switched on before or at 60 degrees, reaches a peak value before or at 65 degrees, and is cut off after 90 degrees or after 90 degrees.

Description

technical field [0001] The invention relates to the technical field of LED driving power supply, in particular to an LED driving power supply meeting EU standards. Background technique [0002] The European Union's new Energy Efficiency ErP Regulation (EU) 2019 / 2020 (hereinafter referred to as: ErP 2.0) will be enforced on September 1, 2020. In addition, EU EN61000-3-2:2019 / IEC 61000-3-2:2018 will also be enforced on March 1, 2021. [0003] Before the above two new EU regulations are enforced, for LED drive power with rated input power ≥ 5W and ≤ 25W (hereinafter referred to as: 5-25W LED drive power), the old version of the EU’s energy efficiency ErP regulation (EU) 1194 / 2012 (ErP1.0) requires a power factor > 0.5; in addition, EN61000-3-2:2014 / 2009 version before EN61000-3-2:2019 does not have harmonic current for 5~25W LED drive power limit requirements. In previous designs, LED drive power supply manufacturers only need to use traditional low PF single-stage flyba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B45/37H05B45/36H05B45/34H05B45/56H05B45/325H02M1/44H02M3/22H02M1/12
CPCH02M1/126H02M1/44H02M3/22H05B45/325H05B45/34H05B45/36H05B45/37H05B45/56H02M1/123Y02B20/30
Inventor 刘小毛
Owner 佛山市旺科电子科技有限公司
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