ebers moll model of transistor

[nitin.maurya1]

what the ebers moll model signifies?

 

[mister_rf]

Several large signal models exist for the BJT. They are essential to developing analytical models for hand calculations and for more sophisticated models for use in circuit simulators.
The Ebers-Moll is one of the earliest and the simplest models for the BJT. The Ebers-Moll model contains two diodes and two current sources. The two diodes represent the base-emitter and base-collector diodes. The current sources quantify the transport of minority carriers through the base region. These current sources depend on the current through each diode. The superposition of normal operation currents and inverted operation currents yields two equations valid for any operating condition.

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Ebers-Moll equivalent circuit is the bridge between internal device physics and electronic circuits.

For additional details you may find lots of info about this subject on the internet, some examples:
Bipolar junction transistor - Wikipedia, the free encyclopedia
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