CONSISTENT ILLUMINANCE CONTROL CIRCUIT

CONSISTENT ILLUMINANCE CONTROL CIRCUIT

A consistent illuminance control circuit includes a voltage converted unit, a LED unit, an illuminance compensation unit and a converted control unit. The voltage converted unit receives a input voltage and converts the input voltage into a output voltage. The LED unit receives the output voltage. A...

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Hauptverfasser: HUNG, CHENNG-HUNG, LOU, PANG-YEN, WANG, CHUAIN
Format: Patent
Sprache:chi ; eng
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ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
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creator HUNG, CHENNG-HUNG
LOU, PANG-YEN
WANG, CHUAIN
description A consistent illuminance control circuit includes a voltage converted unit, a LED unit, an illuminance compensation unit and a converted control unit. The voltage converted unit receives a input voltage and converts the input voltage into a output voltage. The LED unit receives the output voltage. A temperature sensor of the illuminance compensation unit senses a temperature of the LED unit and outputs a temperature signal. A voltage limiting element receives the temperature signal and outputs an illuminance compensating signal. The converted control unit receives the illuminance compensating signal and a voltage divided signal, and the converted control unit outputs a converted control signal to the voltage converted unit for controlling the voltage converted of voltage converted unit.
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subjects ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
title CONSISTENT ILLUMINANCE CONTROL CIRCUIT
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