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American Journal of Physics -- August 2003 -- Volume 71, Issue 8, pp. 797

Verifying the diode–capacitor circuit voltage decay

Edward H. Hellen

Department of Physics and Astronomy, University of North Carolina at Greensboro, Greensboro, North Carolina 27402

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The voltage on a capacitor discharging through a forward biased diode is calculated from basic equations and is found to be in good agreement with experimental measurements. In contrast to the exponential time decay for a RC circuit, the nonlinear characteristics of the diode result in a nonexponential decay for the diode–capacitor circuit. For a silicon diode the decay is predominantly a logarithmic function of time. © 2003 American Association of Physics Teachers.

© 2003 American Association of Physics Teachers

KEYWORDS and PACS

Keywords

teaching, capacitors, electric potential, network analysis, active networks

PACS

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History
Received Jan 2003
Accepted Apr 2003
Online Jul 2003

PUBLICATION DATA

ISSN:

0002-9505 (print)  

Publisher:

$abstract.society.value is a Member of CrossRef American Association of Physics Teachers

ARTICLE DATA

Permalink
http://dx.doi.org/10.1119/1.1578070

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