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The Battery Chronicles

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    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

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      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

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        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

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          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

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            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.

            Internet of Things

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              The Internet Of Things 2017: one analyst’s outlook

              January 13, 2017

              The full impact of major technological shifts play out over years, if not decades.
              When the Internet spilled over from its roots in research into the business realm, people were certain – and concerned – that Internet commercialization would inevitably change the nature of the Internet itself.

              Years on, people had it all wrong. Commerce did not change the Internet – the Internet in fact, completely upended and changed the world of commerce – and it continues to do so at an accelerating rate – throughout the world.

              The Energy Imperative

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                China powers up $360 billion renewable energy future

                We’ve all seen the images from Beijing, millions of residents chocking on dirty yellow smog. It’s the result of China’s dependency on coal as a primary fuel – something the current government plans to attack in a bold energy initiative focused on solar, wind and other renewable sources.

                The goal is to curb greenhouse gases, a plan that will create 13 million jobs and pump $350 billion into China’s economy between now and 2020 according to the New York Times.

                Beyond Silicon

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                  Silicon carbide on the road to automotive electrification

                  By Majeed Ahmad | January 2, 2017

                   

                  Higher voltages and currents increase power density while reducing switching losses. Image courtesy of Infineon Technologies.

                  The automotive industry has long been focusing on the higher efficiency of the combustion engine and electrification of the drivetrain in hybrid and fully electric vehicles to meet CO2 emission goals. Now we finally see a tipping point with a greater availability of silicon carbide (SiC) chips that offer extremely low power losses and higher temperature resistance.