Abstract
This chapter discusses the two-port feedback connections. There are four basic types of feedback amplifier. The first two methods always require a network element additional to the active device, while the other feedback connections, in their simplest arrangement, can be formed by the method of connection. The performance of the feedback system can be determined by inserting the modified parameters in the terminated two-port expressions. A more general property of the parallel–parallel feedback amplifier is its transfer resistance. Parallel–parallel feedback defines the transfer resistance. Although a current-controlled voltage source is not a physically available device, the application of parallel–parallel feedback to an amplifier will produce a system that approaches the ideal element as closely as desired. Three transistor connections comprise the common-emitter connection itself, the common emitter with series–parallel feedback applied, and the common emitter with parallel–series feedback. The feedback element of the matrix of the cross-over network is in each case unity, and when used with the common-emitter transistor this element controls the performance.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Electronic Engineering Applications of Two-Port Networks
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
