Kind of Method of Constituting Light Source using Multiple Light-emitting units

Abstract

A method for forming a light source by plurality of light-emitting units, includes: step (A), determining the number of the light-emitting units based on following factors: the factors include a maximum supply voltage of a power supply circuit and a working voltage of each of the light-emitting units; step (B), determining a set power of each of the light-emitting units based on a set power of the light source and the number of the light-emitting units determined in the step (A); step (C), fabricating or selecting each of the light-emitting units based on the working voltage of each of the light emitting units and the set power of each of the light-emitting units determined in the step (B); step D), forming the light source by connecting each of the light-emitting units obtained in the step (C) in series according to the number of the light-emitting units determined in the step (A). For the light source formed as the above method, the high efficient power supply with the maximum output voltage, to the light source load, can be realized and the same power supply circuit can supply power to the light source with different set power with maximum supply efficiency.

Dependencies are inferred from the claim text.