Valeo Vision

Alcatel Lucent

José Afonso

David Boudikian

Olivier Poupel

Clément Fabris

Stéphane Dufosse

Stéphane Lefebvre-Mazurel

A method for limiting current in-rush in automotive lighting devices. By controlling the state of a switching circuit that is used to selectively connect a power supply to an automotive lighting device, the invention allows for selectively limiting the intensity of the current that is supplied to the lighting device. In accordance with preferred embodiments, this advantage is achieved by relying on electronic components that are nowadays used for different purposes.

Method for limiting current in-rush in automotive lighting devices

A method for a driver device of an automotive lighting device that includes at least two inputs for receiving one electricity supply each, and a power converter circuit for selectively converting the electricity supplied on one of the inputs into a periodic power supply for powering said lighting device. The method allows for switching between inputs of the driver device while reducing the power supply shortage which generally arises at the time of switching inputs. This allows for providing generally flicker-free luminosity while using a single converter circuit.

Method for maintaining luminosity when switching input power in automotive lighting devices

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Bobigny, France

José Afonso