LED driver circuit with PWM output

The driver circuit for light emitting diodes (LEDs) of the present invention provides power to LEDs using pulse width modulation (PWM). The driver circuit 100 uses current feedback to adjust power to LED arrays 54 and provides a full light and a dim mode.

VEHICLES IN GENERAL

Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor -the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic-comprising at least two indicating lamps

ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL

ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Circuit arrangements for operating light-emitting diodes [LED]-Controlling the intensity of the light

ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL

Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor -the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic-Mounting of devices using LEDs

Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor -the devices being primarily intended to indicate the vehicle, or parts thereof, or to give signals, to other traffic-for indicating braking action ; or preparation for braking, e.g. by detection of the foot approaching the brake pedal

Circuit arrangements for operating light-emitting diodes [LED]-Driver circuits-Converter circuits-Switched mode power supply [SMPS]

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