Negative_resistance_oscillator.svg
Size of this PNG preview of this SVG file:
696 × 599 pixels
.
Other resolutions:
279 × 240 pixels
|
558 × 480 pixels
|
892 × 768 pixels
|
1,190 × 1,024 pixels
|
2,379 × 2,048 pixels
|
992 × 854 pixels
.
Summary
Description Negative resistance oscillator.svg |
English:
Typical block diagram of a
negative resistance
electronic oscillator
circuit, which uses a one-port component with negative differential resistance such as a
magnetron tube
,
tunnel diode
, or
Gunn diode
to generate a sine wave signal. It consists of a resonant circuit, such as a
tuned circuit
,
cavity resonator
, or
quartz crystal
, connected in series with the negative resistance. A DC bias voltage
V
s
which moves the operating point into the negative resistance region, provides power for the circuit. The negative resistance cancels the positive resistance in the resonant circuit, creating a circuit without damping, which generates spontaneous electrical oscillations at the resonant frequency of the tuned circuit. Negative resistance oscillators like this are often used at microwave frequencies.
Circuits with "N" shaped (voltage controlled) negative resistance devices usually use this series connection. Circuits with "S" shaped (current controlled) negative resistance devices are often connected in parallel.
|
Date | |
Source | Own work |
Author | Chetvorno |
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.
http://creativecommons.org/publicdomain/zero/1.0/deed.en CC0 Creative Commons Zero, Public Domain Dedication false false |