Several driving methods of deep UV uvc-led lamp beads are resistance current limiting, triode constant current, Linear IC constant current and switching power supply.

1、Resistance current limiting:

2、Constant current of triode:

3、Linear IC constant current

Different IC circuit diagrams are selected for constant current. As shown in the figure below, the schematic diagram of a fixed current driving circuit is shown

As shown in the figure below is a simple driving circuit schematic diagram of a linear IC (vas1251) with adjustable current

4、Switching Mode Power Supply

Switching power supply is relatively complex, deep UV uvc-led lamp beads are rarely used, mainly used in lamps and lanterns, not explained here.