Method for controlling LED for car, involves controlling light emitting element by control signal, and generating pseudo random pattern by on-condition and off-conditions in control signal, while generating control signal

摘要

The method involves controlling a light emitting element by a control signal (S), which comprises discrete pulses from an on-condition (E) and an off-condition (A). A pseudo random pattern is generated by the on-condition and the off-conditions in the control signal, while generating the control signal. A pseudo random phase position of successive pulses is generated, and a pulse width modulation is generated by a pulse duty factor. A middle light intensity of the light emitting element is adjusted on basis a predetermined middle frequency. An independent claim is also included for a device for controlling a light emitting element for a car.