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08/15/2011

Researchers Create Battery-less Circuit

 
Circuit-Energy

Researchers in Virginia have created a circuit that uses so little energy that batteries are not even necessary.

A team from Virginia Commonwealth University has devised perhaps the world's most miserly integrated circuit. It could run merely by tapping the ambient energy from the environment.

The researchers created this circuit by combining two electron technologies: spintronics and straintronics.

 Rather than the traditional charge-based electronic switches that encode the basic 0s and 1s of computer lingo, spintronics harnesses the natural spin of electrons to store bits of data. Spin one way and you get a 0; switch the spin the other way and you get a 1. During switching, spintronics uses considerably less energy than charge-based electronics. However, when ramped up to usable processing speeds, much of that energy savings is lost in the mechanism through which the energy from the outside world is transferred to the magnet.

The solution is to use a special class of composite structure called multiferroics. These composite structures consist of a layer of material with close contact to a nonmagnet that changes shape in response to strain. When a tiny voltage is applied across the structure, it generates strain in one layer and is transferred to another layer. This strain rotates the direction of magnetism, achieving the flip.

With the proper choice of materials, the energy output can be as low as 0.4 attojoules, or about a billionth of a billionth of a joule. This proposed design would create an extremely low-power, yet high-density, non-volatile magnetic logic and memory system.

World’s Smallest Battery Created

Battery Redesign Could Reduce Cost of Energy Storage

 

 


Visit our website today to learn about the design flexibility of a Morton building and the endless possibilities of partnering with our designBUILD team.


Wood construction is both cost and energy efficient. Check out Morton Buildings and our designBUILD team online today to discover all the benefits of post-frame construction.

We Can Help You Reduce Energy by 30%

Our mission is to help our customers manage their buildings' energy costs, improve reliability, and enhance performance while having a positive impact on the environment.
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Visit our website today to learn about the design flexibility of a Morton building and the endless possibilities of partnering with our designBUILD team.


Wood construction is both cost and energy efficient. Check out Morton Buildings and our designBUILD team online today to discover all the benefits of post-frame construction.

We Can Help You Reduce Energy by 30%

Our mission is to help our customers manage their buildings' energy costs, improve reliability, and enhance performance while having a positive impact on the environment.
CLICK HERE to find out how.


 
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New technology driving increased demand on healthcare systems.

03/27/2015

Capital ranks #1 in certified buildings.

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New sensor cable technology can detect all types of security breaches.

03/25/2015

Facilities will help cut government GHG emissions by 40%.

03/24/2015

Building sustainability shown to improve tenant happiness.

03/23/2015

New technology to improve the efficiency of wind power systems.

03/20/2015

Reduction of storm activity due to climate change will increase extreme weather.

03/19/2015

Simple ventilation improvements could save over $20,000 per year.

03/18/2015

Efforts to minimize climate change may be more effective than previously thought.

03/17/2015

Researchers develop new approach to create renewable energy.

03/16/2015

Report shows wind becoming cost competitive in more states.

03/13/2015

Study shows “fragrances” may be more than they appear.

03/12/2015

New energy storage configurations could cut costs.

03/11/2015

Program will streamline certification processes, code familiarity.

03/06/2015

Study shows buildings such as hospitals could cut energy use.

03/05/2015

Small and medium-sized buildings will soon have automation options.

03/04/2015

Form will aid lenders in assessing value of sustainable design.

03/03/2015

Expanded choices offer climate-friendly solutions.

03/02/2015

New technology could slash consumption up to 30%.

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