File:Negative resistance stability regions CCNR.svg

Technopedia Center

Faculty of Engineering and Computer Science
S1 Informatics S1 Information Systems S1 Information Technology S1 Computer Engineering S1 Electrical Engineering S1 Civil Engineering

faculty of Economics and Business
S1 Management S1 Accountancy

Faculty of Letters and Educational Sciences
S1 English literature S1 English language education S1 Mathematics education S1 Sports Education

File:Negative resistance stability regions CCNR.svg - Wikipedia

From Wikipedia, the free encyclopedia

Size of this PNG preview of this SVG file: 611 × 586 pixels. Other resolutions: 250 × 240 pixels | 500 × 480 pixels | 801 × 768 pixels | 1,068 × 1,024 pixels | 2,135 × 2,048 pixels.

Original file (SVG file, nominally 611 × 586 pixels, file size: 27 KB)

This is a file from the Wikimedia Commons. Information from its description page there is shown below.
Commons is a freely licensed media file repository. You can help.

Summary

Description	English: A typical characteristic curve of a current-controlled (CCNR or "S" type) negative differential resistance device, showing stable, unstable, and bistable load line regions. A DC bias current I_bias sets the operating point (Q₁) in the middle of the negative resistance region where the device has differential resistance Δv/Δi = -r, as shown by the DC load line (DCL). The AC load line, set by the AC impedance Z facing the device, passes through the Q point at a different angle depending on Z. Increasing Z causes the load line to rotate counterclockwise. if Z > r (green region) the load line intersects the curve once at Q₁ so the circuit is stable. if Z = r (line L₂) the net resistance of the circuit, R+r = 0, so the circuit is unstable and will oscillate. If Z < r (red region) the load line intersects the curve three times, at Q₁, Q₂, and Q₃. The middle point Q₁ is unstable, but the two outer operating points are stable, so the circuit is bistable. This biasing can be used to make flip-flops. Since the device is stable for load resistances above r, current controlled negative resistances are called open-circuit stable. Devices with this type of negative resistance include IMPATT diodes, unijunction transistors, SCRs, and gas discharge tubes like fluorescent lights and neon lights.
Date	26 December 2012, 11:47:21
Source	Own work
Author	Chetvorno
Other versions	File:Negative resistance stability regions VCNR.svg

Licensing

I, the copyright holder of this work, hereby publish it under the following license:

	This file is made available under the Creative Commons CC0 1.0 Universal Public Domain Dedication.
	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

File history

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Dimensions	User	Comment
current	20:08, 13 May 2013	611 × 586 (27 KB)	Chetvorno	Changed red and green stability region color gradients back to solid color sectors, minor label adjustments
	04:09, 13 May 2013	611 × 586 (28 KB)	Chetvorno	Added example load lines L1, L2, and L3, changed red and green stability regions from sectors to radial color gradients, and changed some labels
	20:06, 26 December 2012	662 × 575 (18 KB)	Chetvorno	User created page with UploadWizard

File usage

The following page uses this file:

Negative resistance

Global file usage

The following other wikis use this file:

Usage on ja.wikipedia.org
- 負性抵抗

Metadata

This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.

If the file has been modified from its original state, some details may not fully reflect the modified file.

Width	610.61993
Height	586.29126

Summary

Licensing

Captions

Items portrayed in this file

depicts

creator

some value

copyright status

copyrighted, dedicated to the public domain by copyright holder

copyright license

Creative Commons CC0 License

inception

26 December 2012

source of file

original creation by uploader

File history

File usage

Global file usage

Metadata