The Gummel–Poon model is a
model
A model is an informative representation of an object, person or system. The term originally denoted the plans of a building in late 16th-century English, and derived via French and Italian ultimately from Latin ''modulus'', a measure.
Models c ...
of the
bipolar junction transistor
A bipolar junction transistor (BJT) is a type of transistor that uses both electrons and electron holes as charge carriers. In contrast, a unipolar transistor, such as a field-effect transistor, uses only one kind of charge carrier. A bipola ...
. It was first described in an article published by
Hermann Gummel and
H. C. Poon at
Bell Labs
Nokia Bell Labs, originally named Bell Telephone Laboratories (1925–1984),
then AT&T Bell Laboratories (1984–1996)
and Bell Labs Innovations (1996–2007),
is an American industrial Research and development, research and scientific developm ...
in 1970.
[H. K. Gummel and H. C. Poon, "An integral charge control model of bipolar transistors", ''Bell Syst. Tech. J.'', vol. 49, pp. 827–852, May–June 1970.]
The Gummel–Poon model and modern variants of it are widely used in the popular circuit simulators such as
SPICE
A spice is a seed, fruit, root, bark, or other plant substance primarily used for flavoring or coloring food. Spices are distinguished from herbs, which are the leaves, flowers, or stems of plants used for flavoring or as a garnish. Spice ...
. A significant effect that the Gummel–Poon model accounts for is the variation of the transistor
and
values with the
direct current
Direct current (DC) is one-directional flow of electric charge. An electrochemical cell is a prime example of DC power. Direct current may flow through a conductor such as a wire, but can also flow through semiconductors, insulators, or eve ...
level. When certain parameters are omitted, the Gummel–Poon model reduces to the simpler
Ebers–Moll model.
[
]
Model parameters
Spice Gummel–Poon model parametersSummary of model with schematics and equations
See also
*
Gummel plot
References
External links
Bell System Technical Journal, v49: i5 May-June 1970 on archive.orgDesigners-Guide.org comparison paperXiaochong Cao, J. McMacken, K. Stiles, P. Layman, Juin J. Liou, Adelmo Ortiz-Conde, and S. Moinian, "Comparison of the New VBIC and Conventional Gummel–Poon Bipolar Transistor Models," IEEE Trans-ED 47 #2, Feb. 2000.
{{DEFAULTSORT:Gummel-Poon model
Transistor modeling
de:Ersatzschaltungen des Bipolartransistors#Gummel-Poon-Modell