According to a new report from the International Energy Agency (IEA), inefficient technology is to blame for about $80 billion being wasted worldwide in 2013 on powering networked, online electronic devices such as set-top boxes, printers, and game consoles. These devices consumed a total of about 616 TWh, of which about 400 TWh is claimed to have been wasted due to using more power than needed to maintain a connection and communicate with the network. According to the report, the use of today's best available technologies -- such as those used in mobile devices -- could reduce that power consumption by 65%.
The report, "More Data, Less Energy: Making Network Standby More Efficient in Billions of Connected Devices," points to network standby power demand as a greater concern than even that from datacenters as more and more previously standalone devices, such as appliances, lights, and thermostats, become connected. Without implementing any energy-saving technology changes, the report forecasts that the amount of wasted electricity could reach 739 TWh by 2025. For more, see "Around $80 Billion Wasted on Power for Online Devices in 2013."
Network connectivity is rapidly expanding to a range of new device groups. By 2017 it's predicted that 49% of IP traffic and 39% of consumer Internet traffic will originate from non-PC networked-enabled devices, all of which will be contributing to increased energy demand. (See full size image.)
(Source: IEA (2013b), "Energy Efficiency Market Report 2013," OECD/IEA, Paris)
In product news, Agilent Technologies has introduced a power device capacitance analyzer that automatically characterizes power device junction capacitances using real operating voltages. Measurement capabilities of the B1507A include three-terminal capacitances with high-voltage bias (+/-3 kV), gate resistance, and accurate leakage current and breakdown voltage.
Linear Technology has announced a complete energy-harvesting solution that delivers up to 50 mA of continuous output current to extend battery life when harvestable energy is available. The LTC3331 integrates a high-voltage energy-harvesting power supply plus a buck-boost DC/DC powered from a rechargeable battery to create a single-output supply for alternative energy applications.
A 50-A PoL regulator with dynamic loop compensation has been introduced by Ericsson. The BMR464-50A offers a power density of 32.61 W/cm3 and 25% more output current compared to previous version and in the same footprint.
Texas Instruments is offering a seven-channel, NMOS low-side driver that replaces Darlington transistor arrays in high-voltage systems. The TPL7407L replaces half of the transistor arrays required to drive high-current loads and reduces power by 40%.
International Rectifier has expanded its line of 60V StrongIRFET MOSFETs to include the 115-W IRF7580M Medium Can device. The company also introduced the D28xxD and D50xxxxP D Series low-power radiation-tolerant two-output DC/DC converters.
Diodes Incorporated has introduced the miniature DFN1616-packaged DMN6070SFCL 60-V N-channel power MOSFET with a sub-100-mΩ on-resistance. The company also has announced the AP3598A dual-phase synchronous rectified buck controller, optimized for use in high-performance GPU and CPU core power supplies.
A new series of planar transformers from Standex-Meder features a compact package for power conversion applications. The SX41 Series features an enhanced core design and can handle up to 2-kW applications.
Finally, XP Power has announced an ultra-compact 15-W AC-DC power supply targeting medical applications. Measuring 2.44 x 1.21 x 0.95 inches, the EML15 series single-output supply complies with 3rd-edition EN60601-1, ES60601-1, CSA-C22.2 No. 60601-1, and IEC60601-1 medical safety standards.