Recent Posts

The Energy Imperative

Follow

Follow X

Sign up   |   Log in

  • Minimum length of 8 characters

    Collaboration and standards desperately needed for GaN, SiC, power architectures

    Vision Statements: An Interview with Steve Lambouses

    February 16, 2017

    Editor’s Note: The higher switching frequencies, operating temperatures, and voltage-handling capabilities of wide bandgap (WBG) materials such as gallium nitride (GaN) and silicon carbide (SiC) makes them of fundamental importance to any effort to reduce energy consumption. In this Q&A, Steve Lambouses, vice president and general manager for high-voltage power at Texas Instruments explains why they are so important, and what we need to do to deploy devices based on these materials more quickly.

    Efficiency: The First Fuel

    Follow

    Follow X

    Sign up   |   Log in

    • Minimum length of 8 characters

      Smart lighting and the makeover of LED driver ICs

      By Majeed Ahmad | February 7, 2017

      LED driver ICs such as Fairchild’s FL77944 accommodate higher wattage systems like street lights using parallel connections with LEDs.

      American Airlines Center near the Dallas downtown recently replaced the high-pressure sodium and metal halide light fixtures with LED luminaires in its parking garages. And that has allowed the sports and entertainment arena to reduce an estimated 60 percent energy consumption and $1.26 million in total lifetime savings in parking garage lighting.

      The Energy Imperative

      Follow

      Follow X

      Sign up   |   Log in

      • Minimum length of 8 characters

        Engineers: your decisions shape our energy future

        By Richard Wallace | February 5, 2017

        engineers at work

        “The politicians have done their job; now it’s up to the engineers.”

        That sentiment – first expressed by Jeffery Sachs, the director The Earth Institute of Columbia University, following the signing of the Paris Agreement – is resonating with engineers worldwide.

        The Paris Agreement calls for the world to limit global warming to less than 2 degrees Celsius (°C) compared to pre-industrial levels, and its political unity reflects a broad consensus on addressing climate change.

        The Battery Chronicles

        Follow

        Follow X

        Sign up   |   Log in

        • Minimum length of 8 characters

          Guest Blog: Calculating the accuracy of a battery fuel gauge

          February 2, 2017

          battery fuel gauge

          By Onyx Ahiakwo

          A battery fuel gauge obtains data from the battery to determine how much juice is left. Do not misconstrue gauging accuracy for measurement accuracy. A gauge’s ability to accurately report state of charge (SOC) and predict remaining battery capacity depends on measurements including voltage (‘V’), current (‘I’) and battery temperature (‘T’).

          Efficiency: The First Fuel

          Follow

          Follow X

          Sign up   |   Log in

          • Minimum length of 8 characters

            Guest Blog : How the IoT — and the smartphone — are enabling the smart home

            January 23, 2017

             

             

             

            A smart home in San Diego, California combines the best of modern architecture with the best in smart home technology.

            By Ajinder Singh

            Providing a comfortable space for its occupants is only the minimum requirement for a habitable building, whether it be a primitive shelter, or modern steel and glass structure.

            A building should be more than just a “container” for its occupants.

            The Energy Imperative

            Follow

            Follow X

            Sign up   |   Log in

            • Minimum length of 8 characters

              Time to revisit power consumption in home appliances

              By Majeed Ahmad | January 19, 2017

              A single-package solution simplifies inverter design and lowers power consumption. Image courtesy of Rohm Semiconductor

              The notion of smart home has been making headlines for many years, but it’s actually the energy efficiency part where homes are making the most tangible gains through what designers call inverterization of appliance designs.

              Take the case of home appliances like air conditioners and ceiling fans.

              The Energy Imperative

              Follow

              Follow X

              Sign up   |   Log in

              • Minimum length of 8 characters

                Chipmakers warming up to 48V datacenter movement

                By Majeed Ahmad | January 19, 2017

                The single-stage conversion from 48V voltage bus to the point-of-load (PoL) in cloud server racks offers significant reductions in distribution and conversion power losses. (Image source: Maxim Integrated)

                With the emergence of 48V datacenter architecture on the server rails, is there a greener cloud on the horizon in 2017? A lot depends on the availability of chips that can efficiently facilitate the 48V single conversion to the point-of-load (PoL) while providing the projected 16x reduction in distribution loss and 30 percent lower conversion loss.

                The Battery Chronicles

                Follow

                Follow X

                Sign up   |   Log in

                • Minimum length of 8 characters

                  Smart energy storage will define the future of everything: the grid, automobiles and gadgets

                  By Patrick Mannion | January 15, 2017

                  Vionx Energy field engineer Michael McNeely stands in the engineering house, monitoring vanadium redox flow battery tests. (Bruce Gellerman/WBUR)

                  Vionx Energy field engineer Michael McNeely stands in the engineering house, monitoring vanadium redox flow battery tests. (Bruce Gellerman/WBUR)

                  From smartphones to automobiles and the electric grid, energy storage is becoming more critical. For mobile devices, the need is clear for safe, longer-lasting, energy-dense chemistries. For automobiles, the move to hybrid, electric, and autonomous vehicles has increased the bounty to be had for denser and lighter storage.