The web page you refer to is correct, but I think you've misunderstood
it. The ee in Vee refers to a BJT emitter, which is connected to
ground in some way with an NPN common emitter circuit. Many BJT
circuits use a NPN/PNP arrangement symmetrical about ground, giving you
a Vcc, a -Vcc, and ground (sort of Vee). In theory you can also have a
PNP only circuit, giving -Vcc and Vee, though that's very unusual these
days.
Regards,
Robert.
Hristo Antonov wrote:
On Tue, 2007-10-16 at 21:50 +1000, jeremy wrote:
VCC is there in powers
I can't find -VCC in Powers.
Can I make one somehow?
Thank you!
Please do not ;)
The opposite of Vcc is not -Vcc . It is Vee !
Look here
http://encyclobeamia.solarbotics.net/articles/vxx.html
-Vcc is used for better explanation only. It means that Vee is same as
Vcc and it is with opposite polarity .
Good luck !
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