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Light emitting diode drive unit capable of modulating light and inhibiting scintillation

A technology of light emitting diodes and driving devices, applied in the field of light emitting diode driving devices, can solve the problems of short life, high cost of electrolytic capacitors, etc.

Inactive Publication Date: 2015-08-12
ROSENLITE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, when applied to traditional dimmers, LEDs flicker, and LED drivers require electrolytic capacitors for filtering; electrolytic capacitors are expensive and have a short lifespan

Method used

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  • Light emitting diode drive unit capable of modulating light and inhibiting scintillation
  • Light emitting diode drive unit capable of modulating light and inhibiting scintillation
  • Light emitting diode drive unit capable of modulating light and inhibiting scintillation

Examples

Experimental program
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Embodiment Construction

[0061] Please refer to figure 1 , which is a block diagram of the first embodiment of the light-emitting diode driving device with dimming and flicker suppression of the present invention. A light-emitting diode drive device 10 with dimming and flicker suppression is applied to an AC power supply device 20, a dimmer 30, and at least one light-emitting diode 40; the light-emitting diode drive device 10 with dimming and flicker suppression includes a rectifier The unit 102 , an integral sampling unit 104 and a voltage-to-current control conversion unit 106 .

[0062] The rectifier unit 102 is electrically connected to the dimmer 30 and the LED 40; the integral sampling unit 104 is electrically connected to the rectifier unit 102 and the LED 40; the voltage-to-current control conversion unit 106 is electrically connected to The integral sampling unit 104 and the LED 40 .

[0063]The AC power supply device 20 transmits an AC power supply 22 to the dimmer 30; the dimmer 30 perfor...

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PUM

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Abstract

The invention discloses a light emitting diode drive unit capable of modulating light and inhibiting scintillation, comprising a rectification unit, an integration sampling unit and a voltage-current control conversion unit. An AC power supply providing apparatus transmits an AC power supply to a light modulator; the light modulator adjusts light of the AC power supply to obtain a light modulation power supply; the light modulator transmits the light modulation power supply to a rectification unit; the rectification unit rectifies the light modulation power supply to obtain a rectification power supply. The rectification unit transmits the rectification power supply to the integration sampling unit and a light emitting diode; the integration sampling unit performs integration sampling conversion on the rectification power supply to obtain an integration voltage signal, and transmits the integration voltage signal to the voltage-current control conversion unit; the voltage-current control conversion unit converts the integration voltage signal to obtain a driving current signal to drive the light emitting diode. The light emitting diode drive unit can inhibit light emitting diode scintillation.

Description

technical field [0001] The invention relates to a light-emitting diode driving device, in particular to a light-emitting diode driving device with dimming and flicker suppression. Background technique [0002] LEDs have many advantages over incandescent light sources, including lower energy consumption, longer lifetime, improved physical durability, smaller size, and faster switching speed; therefore, LEDs have been Widely used to replace fluorescent tubes or tungsten lamps. The LED driver is used to drive the LEDs. [0003] However, when applied to a traditional dimmer, the LED will flicker, and the LED driver needs an electrolytic capacitor for filtering; and the electrolytic capacitor is expensive and has a short life. Contents of the invention [0004] The object of the present invention is to provide a light-emitting diode driving device with dimming and flicker suppression, so that the flicker of the light-emitting diode can be suppressed. [0005] In order to ach...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05B37/02
Inventor 沈伟宏
Owner ROSENLITE
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