Lecture 8 Simulating RR

Lecture 8 Simulating RR - Lecture 8: Introduction to...

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Lecture 8: Introduction to electronic analog circuits 361-1-3661 1 While simulating an equivalent electronic circuit in SPICE or measuring parameters of a real electronic circuit, it is not possible to assign a fixed value to the dependent source of a transistor or amplifier and measure in this way the RR . However, the transistor's or amplifier's terminals are always accessible. Hence, it is important to measure the circuit's RR by connecting test sources to the accessible terminals. To show how this can be done, let us first consider in Fig. 1(a) a generic single-transistor circuit with all independent sources suppressed. We suppose that the dependent source remembers the original value that he had when the circuit was excited by the independent sources. The circuit's RR can be found in this case as follows: OL OL OL a RR i s i s s a s a RR s s RR - = - = - - ε . (1) It is important to note that the generic circuit in Fig. 1 is not
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This note was uploaded on 01/14/2012 for the course EE 361-1-3711 taught by Professor Prof.eugenepaperno during the Fall '11 term at Ben-Gurion University.

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Lecture 8 Simulating RR - Lecture 8: Introduction to...

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