# using direction of current as base for new type of binary circuits

by shivakumar06
Tags: base, binary, circuits, current, direction, type
 P: 55 can the direction of flow of current be used to define binary circuits. can we consider a particular direction of flow as +1 and it's opposite as -1 and no current as zero?
 PF Gold P: 5,693 You can define it any way you want, but how would you make use of it?
 P: 55 sir i would have an extra option in if else loop.
Mentor
P: 10,830

## using direction of current as base for new type of binary circuits

It is problematic to get the same gate structure with currents - how do you design a gate that always leads to a specific current flow direction, independent of other gates connected to it?

 Quote by shivakumar06 sir i would have an extra option in if else loop.
 P: 55 sir the circuit can closely resemble the neuron network of brain
 Mentor P: 10,830 The brain is not operating in binary (although axons have something close to it, the neurons do not), and it does not use current directions to transmit information.
 PF Gold P: 5,693 shivakumar06, I suggest you study some basic electronics. Your posts make it seem as though you are just floundering around, playing with concepts you do not understand.
 P: 271 you can essentially build a circuit with anything that has two distinct states. On/Off is one of the simplest. Direction of current will be a LOT more complicated to implement though I would imagine it could be done. But as Phinds and Mfb have said, why?
 P: 1 In terms of FET (field effect transistor) logic, you need a gate (transistor), or maybe two FETs at each end of the wire. That's expensive use of resources. FET logic is on/off logic in use in today's consumer gadgets. 50 years ago Current Mode Logic (CML), using bipolar transistors, would steer current (in the same direction) down one of two parallel wires. Also expensive, but very fast for the time. But it ran hot/consumed lots of expensive power. And it took up twice the surface area when running wires. SQUID logic devices (superconductive) can use magnetic loops for bit storage and superconductive tunneling junctions for gates/switches. Maybe you could put TJs at each end of a magnetic loop and store the bits as north/south alternatives distinguished by the direction of the current in the loop. This cryogenic technology operates at roughly liquid nitrogen and colder temperatures. The great thing about cryogenic superconductive logic is that it can perform power-dissipation-free computation for free. As long as the computation is performed in a closed system, no power is dissipated. Power dissipation comes only when the computing system has to send information to and from the outside, ambient temperature world. Like your room. See http://en.wikipedia.org/wiki/Superco...ntum_computing and references at end. See also http://en.wikipedia.org/wiki/Josephson_effect and references for more on tunneling (Josephson) junction switches.
P: 71
For shorts, the answer is yes....

But if you allow me to insert some comments...