Basic NPN and PNP

379

08:49:25

NPN (more commonly used) 
- The +ve runs through the base and into the emitter -ve that opens the collector and turns on the higher voltage.
- To turn the transistor on The base has to be higher than the ground voltage ie. 1v

PNP 
- The +ve runs through the Emitter and into the base -ve that opens the collector and turns on the higher voltage.
Emitter is connected to the ground -ve.
- To turn the transistor on The base has to be a lower voltage than the source ie. 8v

published 6 years ago

hurz

6 years ago

the first time after a long time we get here a fair comparison of NPN vs PNP. Only the base resistance and its resulting base current is a bit pesimistic and cause ober saturated transistor. 10kOhm will also do the job with a little less then 1mA. Thats not a pronlem for a BJT with a Beta of 100!

hurz

6 years ago

http://everycircuit.com/circuit/6393274789789696

nanja

6 years ago

ーけ!かん

wyoelk

6 years ago

Wow ONE circuit with wonderful description! Well done! Do more.

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