Memristor-The Missing Passive Element
Hello guys, it has been a very long gap I’m posting another
interesting post, its time to know something different which most of the people
doesn’t know. Its time to know one of
the interesting element which led the advancement of electronics, which made
robotics more efficient, a passive element which many people doesn’t know, yes it’s
the 4th element of the passive elements family called “ Memristor” .
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| Memristor |
This post presents a very brief description of the special
two terminal device named ‘Memristor’, a contraction of Memory and Resistor
which has every right to be as a basic as the three classical circuit elements
already in existence, namely, the resistor, inductor, and capacitor.
The concept of memristor was originally proposed by a circuit
theorist LEON.O.CHUA in 1971 as a missing nonlinear passive two terminal
component relating the charge q(t) and the flux-linkage ψ(t) As per many
circuit theoretic properties of memristor derived, it is shown that this
element exhibits some peculiar behaviour different from that exhibited by
resistors, inductors, or capacitors. These properties lead to a number of
unique applications which cannot be realized with RLC networks alone.
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| Curve relating charge & flux linkage |
The memristor's resistance is not constant but
depends on the history of current that had previously flowed through the device, i.e.,
its present resistance depends on how much electric charge has flowed in what
direction through it in the past. The device remembers its history, that is,
when the electric power supply is turned off, the memristor remembers its most
recent resistance until it is turned on again.
Applications of Memristors:
v The memristor could make it possible
to develop far more efficient computing systems with memories that retain
information even after the power is off, so there's no wait for the system to
boot up after turning the computer on.
v It may even be possible to
create systems with some of the pattern-matching abilities of the human brain.
v As for the human brain-like
characteristics, memristor technology could one day lead to computer systems
that can remember and associate patterns in a way similar to how people do.
v This could be used for improving face
recognition technology & biometric technologies.
v Solid state memristors can be
combined into crossbar latches which may replace transistors in the future.
v These have applications in the
various fields of electronics such as signal processing, control systems, radio
frequency identification and so on….
Hope this brief idea about the Memristors was useful to all , hoping to write more regarding this in the upcoming future. Thanx for visiting the blogger. Do comment ur views . Keep visiting.
