Pnp Transistor Led Driver. Enjoy the videos and music you love upload original content and share it all with friends family and the world on youtube. Relay driver circuit using pnp bjt a transistor works best as a switch when it is connected with a common emitter configuration meaning the emitter of the bjt must be always connected directly with ground line.
Circuit Using 2n222 Npn Transistor Transistors Electronics Circuit Circuit from www.pinterest.com
We will use the most widely used pnp transistor for our circuit the 2n3906. Led driver consisting of a resistor equipped pnp transistor with two diodes on one chip in a small sot23 plastic package. Going from a back view the first lead is the emitter the second lead is the base and the third lead is the collector.
Led driver consisting of a resistor equipped pnp transistor with two diodes on one chip in a small sot23 plastic package.
Usually the signal from a microcontroller or logic gate does not possess sufficient drive current to power an led directly. If the led has a higher power requirement then it is best to use an npn transistor as a driver. Led driver consisting of a resistor equipped pnp transistor with two diodes on one chip in a small sot23 plastic package. Going from a back view the first lead is the emitter the second lead is the base and the third lead is the collector.
