P
Peter
- Jan 1, 1970
- 0
If you have say 15volts going through a 1k resistor into the base of a
transistor, the emitter has an emitter resistor as well... say 500ohms and
the collector is tied directly to Vcc of 25 volts.
How do you figure out the max current and voltages through the collector,
emitter and base???
The collector can draw as much as it wants because it's tied to Vcc, you
don't know the voltage at the base because of the Re. Normally you'd have
the emitter tied to ground, so your base is approx. 0.7v and you figure out
your base current that way, then multiply it by beta, etc.... But the
emitter resistor is confusing me.
Does anyone know???
Thanks in advance!
transistor, the emitter has an emitter resistor as well... say 500ohms and
the collector is tied directly to Vcc of 25 volts.
How do you figure out the max current and voltages through the collector,
emitter and base???
The collector can draw as much as it wants because it's tied to Vcc, you
don't know the voltage at the base because of the Re. Normally you'd have
the emitter tied to ground, so your base is approx. 0.7v and you figure out
your base current that way, then multiply it by beta, etc.... But the
emitter resistor is confusing me.
Does anyone know???
Thanks in advance!