Method for Driving LED
OwnerYu-Nung Sheninventor
Life of this patent
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Abstract
A method for driving a LED and to an illumination system comprising at least one LED. The LED is driven by a pulse signal, wherein the pulse signal comprises pulses of a duration of T/n, wherein T is the duration of a single pulse and the corresponding pause in between two consecutive pulses and n is at least 2, and the current value of the pulses is at least double as much as the nominal constant current of said LED. The light intensity is increased by n times while the power consumption is the same in comparison to driving that LED with a prescribed constant driving voltage and the prescribed constant driving current.
Claims20
A method for driving a light emitting diode (LED) which is driven by a pulse signal, wherein the pulse signal comprises pulses of a duration of T/n, wherein T is the duration of a single pulse and the corresponding pause in between two consecutive pulses and n is at least 2, wherein current pulses are applied with a current value at least double as much as the nominal constant current of said LED.
An illumination system comprising:
- at least one LED, and
- a driving circuit being electrically connected to said at least one LED and which drives the LED with a pulse signal, wherein the pulse signal comprises pulses of a duration of T/n, wherein T is the duration of a single pulse and the corresponding pause in between two consecutive pulses and n is at least 2, wherein current pulses are applied with a current value at least double as much as the nominal constant current of said LED.
Dependencies are inferred from the claim text.