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Design and Evaluation of an Audio-Frequency Transresistance Amplifier for Magnetic Tape Playback

Salvatierra, Thomas R.
http://rave.ohiolink.edu/etdc/view?acc_num=wright1301007790

Abstract Details

2011, Master of Science in Engineering (MSEgr), Wright State University, Electrical Engineering.
Analog magnetic tape remains a medium of choice for high-fidelity sound recording and reproduction. Some of this fidelity is sacrificed during the tape playback process; an optimized playback preamplifier is therefore critical to the performance of the medium. Existing playback methods integrate the voltage generated across the reproduce head to obtain a signal directly proportional to the remanent magnetic flux of the tape. An alternate playback method proposes the use of a transresistance amplifier to convert flux-proportional reproduce head current directly to voltage. This eliminates the need for voltage integration and minimizes the amount of equalization performed upon playback. Circuit size and complexity are likewise reduced. A practical transresistance playback preamplifier is designed and its performance is evaluated against selected integrating playback preamplifiers. SPICE simulation verifies that the proposed design offers a significant reduction in harmonic distortion, as well as improved transient response, magnitude response, and phase margin.
Marian Kazimierczuk, PhD (Advisor)
Fred Garber, PhD (Committee Member)
Raymond Siferd, PhD (Committee Member)
Kefu Xue, PhD (Other)
Andrew Hsu, PhD (Other)
84 p.
Electrical Engineering
audio electronics; analog magnetic tape; playback amplifier; transresistance; transimpedance

Recommended Citations

Citations

  • Salvatierra, T. R. (2011). Design and Evaluation of an Audio-Frequency Transresistance Amplifier for Magnetic Tape Playback [Master's thesis, Wright State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=wright1301007790

    APA Style (7th edition)

  • Salvatierra, Thomas. Design and Evaluation of an Audio-Frequency Transresistance Amplifier for Magnetic Tape Playback. 2011. Wright State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=wright1301007790.

    MLA Style (8th edition)

  • Salvatierra, Thomas. "Design and Evaluation of an Audio-Frequency Transresistance Amplifier for Magnetic Tape Playback." Master's thesis, Wright State University, 2011. http://rave.ohiolink.edu/etdc/view?acc_num=wright1301007790

    Chicago Manual of Style (17th edition)

wright1301007790
1,705
© 2010, all rights reserved.
This open access ETD is published by Wright State University and OhioLINK.