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Method for realizing high-power-factor low-frequency flash

A technology with high power factor and implementation method, applied in the direction of electrical components, etc., can solve the problem of low power factor of the driving power circuit, and achieve the effect of stable brightness and high power factor

Active Publication Date: 2021-03-26
安徽亮亮电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]The existing LED lamp driving circuit has serious stroboscopic phenomenon. After modification, stroboscopic phenomenon cannot be avoided. Severe stroboscopic phenomenon will cause damage to human eyes. And the power factor of the whole driving power supply circuit is not high, so we provide a method of realizing high power factor and low frequency flicker

Method used

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Embodiment Construction

[0015] The technical solutions in the embodiments of the present invention are clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, those skilled in the art All other embodiments obtained by personnel without creative work belong to the protection scope of the present invention.

[0016] The invention discloses a method for realizing high power factor and low frequency flicker, which comprises the following steps:

[0017] Step 1: Select multiple low-voltage LED light sources and install them in series in the lamp panel to form a low-voltage LED light source module, or select multiple high-voltage LED light sources in parallel and use COB packaging to form a high-voltage LED light source module;

[0018] Step 2: Select a low-voltage LED light source module or a high-voltage LED light source module in step 1 as requ...

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Abstract

The invention discloses a method for realizing high-power-factor low-frequency flash. A plurality of low-voltage LED light sources are selected to be sequentially connected in series and installed ina lamp panel to form a low-voltage LED light source module, or a plurality of high-voltage LED light sources are selected to be sequentially connected in parallel and packaged through COB, a high-voltage LED light source module is adopted, and the low-voltage LED light source module or the high-voltage LED light source module is selected, the input end and the output end of the LED light source module are connected with a filter capacitor in parallel to form a filter LED light source module, the filter LED light source module is connected with a linear constant-current circuit module in seriesto form a single-group constant-current LED light source assembly, and the input end and the output end of the single-group constant-current LED light source assembly are connected with a charging and discharging module in parallel. According to the method for realizing the high-power-factor low-frequency flash, driving of a switching power supply is not needed, current can be stably provided, brightness is stable, emitted light is bright and soft, stimulation to eyes is avoided, stroboflash is reduced, and the method has the advantages of being low in cost, simple in circuit structure and capable of greatly saving electric energy.

Description

technical field [0001] The invention relates to the technical field of LED driving power supply, in particular to a method for realizing high power factor and low frequency flicker. Background technique [0002] The LED drive power supply is a power converter that converts the power supply into a specific voltage and current to drive the LED to emit light. Usually: the input of the LED drive power supply includes high-voltage power frequency AC (that is, mains power), low-voltage DC, high-voltage DC, low-voltage high Frequency AC (such as the output of an electronic transformer), etc. The output of the LED drive power supply is mostly a constant current source that can change the voltage with the change of the LED forward voltage drop value. [0003] The existing LED lamp driving circuit has serious flickering, which cannot be avoided through modification. Severe flickering will cause damage to human eyes, and the power factor of the entire driving power circuit is not high...

Claims

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Application Information

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IPC IPC(8): H05B45/37H05B45/355H05B45/345H05B45/10
CPCH05B45/37H05B45/355H05B45/345H05B45/10
Inventor 汪沁任泽铭张志华汪海源雷仁大
Owner 安徽亮亮电子科技有限公司