MOTOR VEHICLE ILLUMINATION DEVICE

MOTOR VEHICLE ILLUMINATION DEVICE

A motor vehicle lighting device comprising at least one branch of semiconductor light sources including two or more light source units connected in series is disclosed herein. A MOSFET switch bridging the individual light source units is assigned to the light source units. The at least one branch is...

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1. Verfasser: GUTH, Christian
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
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creator GUTH, Christian
description A motor vehicle lighting device comprising at least one branch of semiconductor light sources including two or more light source units connected in series is disclosed herein. A MOSFET switch bridging the individual light source units is assigned to the light source units. The at least one branch is fed from the output voltage of a DC/DC converter with respect to ground. An activation circuit is assigned to the MOSFET switch for activating the MOSFET switch, which is a p-channel MOSFET. A rectifier circuit is assigned to the DC/DC converter. The input of the rectifier circuit is connected to a pole of a storage inductor of the converter, at which negative voltage pulses occur with respect to ground. The rectifier circuit is designed to rectify the negative pulses and to provide the resulting negative DC voltage of the activation circuit for switching the MOSFET switch.
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A MOSFET switch bridging the individual light source units is assigned to the light source units. The at least one branch is fed from the output voltage of a DC/DC converter with respect to ground. An activation circuit is assigned to the MOSFET switch for activating the MOSFET switch, which is a p-channel MOSFET. A rectifier circuit is assigned to the DC/DC converter. The input of the rectifier circuit is connected to a pole of a storage inductor of the converter, at which negative voltage pulses occur with respect to ground. 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A MOSFET switch bridging the individual light source units is assigned to the light source units. The at least one branch is fed from the output voltage of a DC/DC converter with respect to ground. An activation circuit is assigned to the MOSFET switch for activating the MOSFET switch, which is a p-channel MOSFET. A rectifier circuit is assigned to the DC/DC converter. The input of the rectifier circuit is connected to a pole of a storage inductor of the converter, at which negative voltage pulses occur with respect to ground. The rectifier circuit is designed to rectify the negative pulses and to provide the resulting negative DC voltage of the activation circuit for switching the MOSFET switch.</abstract><oa>free_for_read</oa></addata></record>
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subjects ELECTRIC HEATING
ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
title MOTOR VEHICLE ILLUMINATION DEVICE
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