METHOD OF DRIVING LED CHIP

摘要

A method of driving a LED chip includes the following steps: generate a reference voltage, and accordingly control a driving unit to output electrical energy at a power corresponding to the strength of the reference voltage; obtain an operating current required by the LED chip; control the driving unit to output the operating current to the LED chip under the power corresponding to the reference voltage. Whereby, with different strengths of the reference voltage, the driving unit is capable of outputting electrical energy to the LED chip at different powers. Therefore, one single driving apparatus applied with the method is sufficient to replace multiple conventional driving apparatuses for LED chips.

主权项

1. A method of driving a led chip, which is applied on a driving apparatus having a driving unit electrically connected to a LED chip, wherein the driving unit is controllable to provide electrical energy at one of a plurality of powers to the LED chip; comprising the steps of:
(a) generating a reference voltage, and accordingly controlling the driving unit to output electrical energy at a power corresponding to the reference voltage; (b) obtaining an operating current required by the LED chip; (c) controlling the driving unit to output the operating current to the LED chip under the power corresponding to the reference voltage.