Bjt_models - Simplified Large-Signal Models of the Bipolar-Junction Transistor(BJT Large-Signal Models provide equivalent-circuits for BJTs that

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
-1- Simplified Large-Signal Models of the Bipolar-Junction Transistor (BJT) Large-Signal Models provide equivalent-circuits for BJTs that offer useful approximations of these devices over relatively broad ranges of operation. Since there are 2 general types of BJT, and 3 principle modes of operation for each, different large-signal models of the BJT are required in order to address the common applications. These different models are summarized below: Active Mode: The equations derived in class relating the BJT currents & voltages in the Active Mode lead to two possible equivalent circuit topologies based on a single diode (to characterize the EBJ) and either a voltage-controlled or a current-controlled current source (to characterize the CBJ). These two topologies are fundamentally equivalent, but naturally give rise to two corresponding two-port-network configurations, each being suited to a particular class of applications. Refer to sections 5.1 & 5.2 of the text by Sedra & Smith (5th Ed.) for more detailed descriptions of these models.
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 12/21/2010 for the course EECE EECE 254 taught by Professor Robinturner,purangabomasumi during the Spring '09 term at The University of British Columbia.

Page1 / 2

Bjt_models - Simplified Large-Signal Models of the Bipolar-Junction Transistor(BJT Large-Signal Models provide equivalent-circuits for BJTs that

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online