![I have a PNP BJT and an LED driver (current sink, theoretically 20 mA and max 3.3 V). The LED driver is connected through an LED to the base of the BJT. I have a PNP BJT and an LED driver (current sink, theoretically 20 mA and max 3.3 V). The LED driver is connected through an LED to the base of the BJT.](https://preview.redd.it/i-have-a-pnp-bjt-and-an-led-driver-current-sink-v0-1mbmtkqu4zfb1.png?width=640&crop=smart&auto=webp&s=84f4d1c009a289f9a6e4f6968811b9b06e3b8207)
I have a PNP BJT and an LED driver (current sink, theoretically 20 mA and max 3.3 V). The LED driver is connected through an LED to the base of the BJT.
![Safety Issues for LED Drivers with PWM Operation Modes by Product Approvals Ltd. — LED professional - LED Lighting Technology, Application Magazine Safety Issues for LED Drivers with PWM Operation Modes by Product Approvals Ltd. — LED professional - LED Lighting Technology, Application Magazine](https://www.led-professional.com/media/resources-1_articles_safety-issues-for-led-drivers-with-pwm-operation-modes-by-product-approvals-ltd_screen-shot-2016-06-21-at-08-57-07.png/@@images/1b960042-2f42-43b1-8de0-e85893d1ff2b.png)
Safety Issues for LED Drivers with PWM Operation Modes by Product Approvals Ltd. — LED professional - LED Lighting Technology, Application Magazine
![Electronic Circuit Projects: Simplest 1 Watt LED Driver Circuit at 220V/110V Mains Voltage | Circuito eletrônico, Esquemas eletrônicos, Eletrônica Electronic Circuit Projects: Simplest 1 Watt LED Driver Circuit at 220V/110V Mains Voltage | Circuito eletrônico, Esquemas eletrônicos, Eletrônica](https://i.pinimg.com/originals/4b/fa/76/4bfa761e01691338b3b17c70dde4b164.png)
Electronic Circuit Projects: Simplest 1 Watt LED Driver Circuit at 220V/110V Mains Voltage | Circuito eletrônico, Esquemas eletrônicos, Eletrônica
![LED Driver Circuit Explained and Available Solutions | Led drivers, Basic electrical engineering, Inductors LED Driver Circuit Explained and Available Solutions | Led drivers, Basic electrical engineering, Inductors](https://i.pinimg.com/736x/6a/67/3e/6a673e56d2d0d48fa04d8338368e9fa2.jpg)