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so you say this circuit wont work?
I cant have a 0,7v across r1? Like some kinda 2,3v over r2 and r3 together.
there has not yet been anyone that have been able to help me build a working h-bridge. This suggestion came from my teacher....
Transistors have current inputs, not voltage inputs. If the input voltage is high enough for a high enough base current then the transistor sets its own input voltage.
use 10k ohms from base to emitter to turn off the transistor quickly and use a base current that is 1/10th the collector current for a low saturation voltage.
No.but with a PNP transistor the voltage from collector to base is -0.7V thus making the base voltage on the collector at least 0.7v higher than the base and therefore I cant lead a voltage to the base that is the same as the collector.