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白光LED通常由一个恒定直流电流源驱动,以保持恒定的亮度。在采用单节锂离子电池供电的便携式应用中,白光LED与电流源上的电压降之和可以比电池电压高或低,这意味着白光LED某些时候需要对电池电压进行升压。实现这样应用的最好办法是使用升压DC/DC转换器。这种方法大大地优化了
White LEDs are usually driven by a constant DC current source to maintain constant brightness. In portable applications powered by a single Li-Ion battery, the sum of the voltage drops across the white LED and the current source can be higher or lower than the battery voltage, which means that the white LED needs to step up the battery voltage at some point. The best way to do this is to use a step-up DC / DC converter. This method is greatly optimized