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High side transistor switch with 9V LED driver - Electrical Engineering Stack Exchange
Driving an LED using a Transistor
![SOLVED] - LED driving with 2 BJT's Current Source Circuit | Forum for Electronics](https://i.imgur.com/4e9sk.jpg "SOLVED] - LED driving with 2 BJT's Current Source Circuit | Forum for Electronics")
SOLVED] - LED driving with 2 BJT's Current Source Circuit | Forum for Electronics
voltage - Driving a high power (200mA) LED with a GPIO and NPN transistor - Electrical Engineering Stack Exchange
Transistors - SparkFun Learn
