For BJTs, I always remember that the arrow points to 'negative' (N-type silicon) [or goes P->N]. That way from the arrow it's rather easy to tell whether I'm looking at PNP or NPN, no matter what orientation or mirroring the symbol has. I think all tutorials should mention this. Although as you say, in some aspects, using "negative" voltages for the PNP has some confusions, there is one advantage in that it makes the emitter / collector designations make more sense again, rather than seeming to be arbitrarily flipped from their meaning in the NPN.
Awesome ! for some reason I thought that the 'arrow' in a NPN MOSFET pointed in the opposite direction to that of a BJT, I was never quite sure but this has put that little conflict of mine to bed !...cheers.
Excellent explanation, & easy to understand! Now, I understand that Ge transistors have about 0.2 volts across their junctions and Si have about 0.6 volts. But I have here in my hands a power transistor (?, they look just like b/b diodes to a diode check meter) that doesn't fit into either slot very well with 0.48 and 0.49 volts. It's a Motorola SJ4836, a TO-3 from 1985. I can't find any documentation on it, and don't know even if it's a Si transistor with that low a drop, and just a little high to be Schottky. Any idea as to what this junk box find might be?
But in circuit diagrams, PNP transistors are drawn just like NPN but with the arrow flipped the other way, Also this source and drain analogy was a poor choice of wording for MOSFETS. I always get it back to front because you can think of a drain as drawing away from something not drawing into something.
Clear, concise, easy to understand explanations as usual ... great job!
Just finished the op-amp playlist, now really looking forward to this! Hope the rest of the videos will be up soon! Thanks
Very high quality video as usual. Thank you!
Thank you for your detailed explanation
Dr. Danner thank you so much for sharing!
Thank you very much for your kindly sharing this clip.
For BJTs, I always remember that the arrow points to 'negative' (N-type silicon) [or goes P->N]. That way from the arrow it's rather easy to tell whether I'm looking at PNP or NPN, no matter what orientation or mirroring the symbol has. I think all tutorials should mention this.
Although as you say, in some aspects, using "negative" voltages for the PNP has some confusions, there is one advantage in that it makes the emitter / collector designations make more sense again, rather than seeming to be arbitrarily flipped from their meaning in the NPN.
Awesome ! for some reason I thought that the 'arrow' in a NPN MOSFET pointed in the opposite direction to that of a BJT, I was never quite sure but this has put that little conflict of mine to bed !...cheers.
Excellent explanation, & easy to understand! Now, I understand that Ge transistors have about 0.2 volts across their junctions and Si have about 0.6 volts. But I have here in my hands a power transistor (?, they look just like b/b diodes to a diode check meter) that doesn't fit into either slot very well with 0.48 and 0.49 volts. It's a Motorola SJ4836, a TO-3 from 1985. I can't find any documentation on it, and don't know even if it's a Si transistor with that low a drop, and just a little high to be Schottky. Any idea as to what this junk box find might be?
Thank you
But in circuit diagrams, PNP transistors are drawn just like NPN but with the arrow flipped the other way, Also this source and drain analogy was a poor choice of wording for MOSFETS. I always get it back to front because you can think of a drain as drawing away from something not drawing into something.
Fun challenge. Which type of transistor has thermals labelled Collector, _Gate,_ Emitter?
IGBT :)
Good Explanation
I think the fet arrows are reversed.
Is this on edx
Yepper, I've got a funny one.They're bipolar😊