hi guys,
when asked to make a simple switch using a bjt, i chose this setup (the circle with the red lines coming out of it is the load):
http://upload.wikimedia.org/wikipedia/commons/5/5d/Transistor_as_switch.svg
from my understanding, this setup supports only forward current (not negative) on the output terminal in the 'on' state, and positive voltage (not negative) across the output terminal in the 'off' state. Is that right?
I'm also asked to find a design of mosfets/bjts that supports all four capabilities, forward AND reverse current on the output in the 'on' state, and positive AND negative voltage across the output in the 'off' state.... any ideas?
thanks in advance...
when asked to make a simple switch using a bjt, i chose this setup (the circle with the red lines coming out of it is the load):
http://upload.wikimedia.org/wikipedia/commons/5/5d/Transistor_as_switch.svg
from my understanding, this setup supports only forward current (not negative) on the output terminal in the 'on' state, and positive voltage (not negative) across the output terminal in the 'off' state. Is that right?
I'm also asked to find a design of mosfets/bjts that supports all four capabilities, forward AND reverse current on the output in the 'on' state, and positive AND negative voltage across the output in the 'off' state.... any ideas?
thanks in advance...