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 , .
Models can be divided in ...
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 (FET), uses only one kind of charge carrier. A ...
. It was first described in an article published by
Hermann Gummel and
H. C. Poon at
Bell Labs
Nokia Bell Labs, commonly referred to as ''Bell Labs'', is an American industrial research and development company owned by Finnish technology company Nokia. With headquarters located in Murray Hill, New Jersey, Murray Hill, New Jersey, the compa ...
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 popular circuit simulators such as
SPICE
In the culinary arts, a spice is any seed, fruit, root, Bark (botany), bark, or other plant substance in a form primarily used for flavoring or coloring food. Spices are distinguished from herbs, which are the leaves, flowers, or stems of pl ...
. 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 electric current, flow of electric charge. An electrochemical cell is a prime example of DC power. Direct current may flow through a conductor (material), conductor such as a wire, but can also flow throug ...
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