6002_l9 - Cite as: Anant Agarwal and Jeffrey Lang, course...

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Unformatted text preview: Cite as: Anant Agarwal and Jeffrey Lang, course materials for 6.002 Circuits and Electronics, Spring 2007. MIT OpenCourseWare (http://ocw.mit.edu/), Massachusetts Institute of Technology. Downloaded on [DD Month YYYY]. 6.002 Fall 2000 Lecture 9 6.002 CIRCUITS AND ELECTRONICS MOSFET Amplifier Large Signal Analysis Cite as: Anant Agarwal and Jeffrey Lang, course materials for 6.002 Circuits and Electronics, Spring 2007. MIT OpenCourseWare (http://ocw.mit.edu/), Massachusetts Institute of Technology. Downloaded on [DD Month YYYY]. 6.002 Fall 2000 Lecture 9 ¡ Amp constructed using dependent source ¡ Superposition with dependent sources: one way t leave all dependent sources in; solve for one independent source at a time [section 3.5.1 of the text] ¡ Next, quick review of amp … Reading: Chapter 7.3–7.7 + – + – a ′ a v b ′ b ) ( v f i = ¡ a ′ a b ′ b control port DS output port Dependent source in a circuit Review Cite as: Anant Agarwal and Jeffrey Lang, course materials for 6.002 Circuits and Electronics, Spring 2007. MIT OpenCourseWare (http://ocw.mit.edu/), Massachusetts Institute of Technology. Downloaded on [DD Month YYYY]. 6.002 Fall 2000 Lecture 9 Amp review L D S O R i V v − = ( ) 2 I 1 v 2 K − for v I ≥ 1V = 0 otherwise S V O v L R + – ( ) 2 I D 1 v 2 K i − = I v VCCS Cite as: Anant Agarwal and Jeffrey Lang, course materials for 6.002 Circuits and Electronics, Spring 2007. MIT OpenCourseWare (http://ocw.mit.edu/), Massachusetts Institute of Technology. Downloaded on [DD Month YYYY]. 6.002 Fall 2000 Lecture 9 Key device Needed: Let’s look at our old friend, the MOSFET … A B v C ( ) v f i = voltage controlled current source Cite as: Anant Agarwal and Jeffrey Lang, course materials for 6.002 Circuits and Electronics, Spring 2007. MIT OpenCourseWare (http://ocw.mit.edu/), Massachusetts Institute of Technology. Downloaded on [DD Month YYYY]. 6.002 Fall 2000 Lecture 9 Key device Needed: Our old friend, the MOSFET … First, we sort of lied. The on-state behavior of the MOSFET is quite a bit more complex than either the ideal switch or the resistor model would have you believe. D S G D S T GS V v < G T GS V v ≥ ? Cite as: Anant Agarwal and Jeffrey Lang, course materials for 6.002 Circuits and Electronics, Spring 2007. MIT OpenCourseWare (http://ocw.mit.edu/), Massachusetts Institute of Technology. Downloaded on [DD Month YYYY]....
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6002_l9 - Cite as: Anant Agarwal and Jeffrey Lang, course...

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