Control Device and LED Light Emitting Device Using the Control Device

Control Device and LED Light Emitting Device Using the Control Device

The present invention relates to a control device of a light emitting device that includes a plurality of LED rows formed of a plurality of LEDs sequentially connected in series. The control device includes: a plurality of switches respectively connected to the plurality of LED rows and sequentially...

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Hauptverfasser: KANG EUNCHUL, KIM JUHO, KWON DUCKKI
Format: Patent
Sprache:eng
Schlagworte:
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CRYPTOGRAPHY
DISPLAY
EDUCATION
PHYSICS
SEALS
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creator KANG EUNCHUL
KIM JUHO
KWON DUCKKI
description The present invention relates to a control device of a light emitting device that includes a plurality of LED rows formed of a plurality of LEDs sequentially connected in series. The control device includes: a plurality of switches respectively connected to the plurality of LED rows and sequentially transmitting a detection voltage of each of the plurality of LED rows, wherein the detection voltage corresponds to an output voltage applied to the plurality of LED rows; a comparator receiving the plurality of detection voltages, and generating a clock control signal according to a result of comparison with a predetermined reference; a clock signal generator generating a clock signal having a period that is changed according to the clock control signal; and a shift register that controls switching operations of the plurality of switches according to the clock signal.
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subjects ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CRYPTOGRAPHY
DISPLAY
EDUCATION
PHYSICS
SEALS
title Control Device and LED Light Emitting Device Using the Control Device
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