File:Tunnel diode amplifier.svg

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File:Tunnel diode amplifier.svg - Wikipedia

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DescriptionTunnel diode amplifier.svg	English: A demonstration circuit showing how a tunnel diode can amplify a signal using negative differential resistance. The DC voltage V_b biases the tunnel diode TD into its negative resistance region and also supplies the power used in amplifying the signal. For stability the resistor R must be less than the diodes negative resistance r. Therefore the total resistance of both devices in series, r - R is a small negative value. Therefore a small increase in the input voltage V_i causes a large decrease in the current, causing a large increase in the voltage across the diode . Using the equation for a voltage divider, the AC output voltage is $V_{o}={\frac {r}{r-R}}V_{i}\,$ Since the denominator is smaller than the numerator, the circuit has positive gain $G={\frac {r}{r-R}}\,$
Date	27 September 2012, 08:59:10
Source	Own work
Author	Chetvorno

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	The person who associated a work with this deed has dedicated the work to the public domain by waiving all of their rights to the work worldwide under copyright law, including all related and neighboring rights, to the extent allowed by law. You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission. CC0falsefalse

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	Date/Time	Dimensions	User	Comment
current	21:30, 30 September 2012	661 × 507 (18 KB)	Chetvorno	Redrew circuit to take output across diode instead of resistor to make analysis easier
	16:02, 28 September 2012	661 × 507 (18 KB)	Chetvorno	Changed bias variable name and moved labels a little
	16:02, 27 September 2012	661 × 507 (18 KB)	Chetvorno	User created page with UploadWizard

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Negative resistance

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Usage on fa.teknopedia.teknokrat.ac.id
- کاربر:Ovov12/صفحه تمرین
Usage on ja.wikipedia.org
- 負性抵抗

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Height	507.24777

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