Let’s take a look at both. Here’s the simplest BJT LED Driver circuit. It consists of a transistor connected in common emitter configuration. The transistor gets switched on when the input ...

For instance, check out this WS2811A driver ... to just one transistor, three resistors, and a capacitor. Click through the link above for his step-by-step description of how the circuit works ...

This approach can greatly reduce system complexity for the driver circuit arrays while maintaining device opto-electronic performance. In this work, we demonstrate a 3-terminal GaN micro-light ...