From: Jim Thompson
Subject: Re: Ebers-Moll equation
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Date: Sat, 30 Nov 2002 17:07:08 GMT
NNTP-Posting-Date: Sat, 30 Nov 2002 12:07:08 EST
Organization: Cox Communications
On Sat, 30 Nov 2002 12:02:06 -0500,
"Peter O. Brackett" ,
In Newsgroup: sci.electronics.design,
Entitled: "Re: Ebers-Moll equation",
Wrote the following:
|"Paul Burridge" wrote in message
|> Which model does SPICE utilize?
|Since Gummel-Poon is actually a superset of Ebers-Moll.
|Gummel and Poon [1970's] "merely" elaborated on the very useful and
|isightful model of Ebers
|and Moll [circa early 1950's], if you leave out some of the G-P parameters
|you get the E-M model.
|Anyone who espouses to know how BJT's operate had better commit Ebers-Moll
|to memory, and
|be able to run it through it's paces with real numbers mentally. There are
|only a very few parameters
|and relationships to memorize and it only takes a Sunday afternoon to do so,
|it's not too heavy to
|carry around and you will amaze everyone with your command of BJT
|operations, and then you are
|on your way to joining the elite society of the "lighning empiricists".
|Try that with Gummel-Poon.
|Bob Widlar [The king of BJT linear design, RIP], Barrie Gilbert [The
|translinear guy.] and many others
|have show us all "the way" using no more than Ebers-Moll.
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice:(480)460-2350 | |
| Jim-T@analog_innovations.com Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |
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