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Power Week: Comparing power use of popular game consoles

Posted: 19 Dec 2014     Print Version  Bookmark and Share

Keywords:game console  power management solutions  PlayStation  Xbox  Wii 

A recent test by engineers at the Electric Power Research Institute (EPRI) found that the latest gaming consoles consume more power than previous models. The three most popular units—Microsoft Xbox One, Sony PlayStation 4 and Nintendo Wii U—consumed as much as 124Wh compared to a maximum of about 88Wh in a similar comparison performed in 2010. However, the new models have more features, according to the research organisation.

Testing was conducted by running the popular first-person shooter Call of Duty: Ghosts in a head-to-head hour-long test. The Wii consumed the least power, coming in at 30Wh. Despite their greater power consumption, EPRI notes that all of the consoles still cost less than $5 per year to operate—less than a quarter of the annual cost of a TV or desktop PC—and feature improved graphics, memory and storage over previous models.

Game console power use

Shown is the estimated annual energy consumption and costs for each gaming console, assuming a national average electricity cost of $0.12/kWh and 6.3 hours per week of gameplay. (Source: EPRI)

In product news this past week, International Rectifier announced that it will be showcasing its latest Class D audio power management solutions at next year's CES, including its PowIRaudio power modules and digital power MOSFETs. The company also introduced the 25V IRFH4257D dual N-channel power MOSFET housed in a 4mm x 5mm PQFN power-block package.

Linear Technology announced the LT8640 5A, 42V-input-capable synchronous step-down switching regulator that is offered as reducing EMI/EMC emissions by more than 25dB. The company also introduced a wider-temperature-range, FMEA-compliant, H-grade version of its micropower LT3007 high-voltage PNP-based LDO.

Analog Devices has posted details of a current-limiting controller that provides inrush current limiting and over-current protection for modular or battery-powered systems. The ADM1270 controls supply voltages from 4V to 60V and is packaged in 16-lead LFCSPs and QSOPs.

Additions to ams AG's family of PMICs for mobile multi-core ARM processors include a power control solution for Nvidia's Tegra K1 mobile SoC. The AS3722 24A DC/DC controller features four buck converters, 12 LDOs and an ADC, and is complemented by the AS3728 8A high-voltage dual-phase power stage.

New high-efficiency DC/DC power modules from Ericsson are aimed at industrial and telecom applications. The PKM5000Wseries deliver up to 120W from an input range from 18VDC to 75VDC.

Maxim Integrated has posted details of a two-string HB LED driver that provides a 10000:1 dimming ratio. Aimed for use in automotive display backlights, the MAX16838B integrates both a DC/DC switching boost regulator and two 150-mA current sinks, and accepts a 4.75V to 40V input.

Infineon launched a new power module platform designed to improve the performance of high-voltage IGBTs from 1.2kV up to 6.5kV, and is offering a royalty-free licence of the design to all IGBT power module providers. The first products using the platform will include 3.3kV (450A), 4.5kV (400A), and 6.5kV (275A) voltage classes in a package measuring 100mm x 140mm x 40mm.

Vishay Intertechnology introduced a new family of integrated DrMOS power stage solutions in three PowerPAK package sizes. The SiC789 and the SiC788 are offered in the MLP66-40L with an Intel 4.0 DrMOS standard (6mm x 6mm) footprint; the SiC620 andSiC620R are available in the 5mm x 5mm MLP55-31L package; and the SiC521 is available in the 4.5mm x 3.5mm MLP4535-22L.

New Trench Super Barrier rectifiers from Diodes Inc. target next-generation battery chargers. The SBRT15U50SP5 (VF of 0.47V at 15A) is for 10W smartphone chargers while theSBRT20U50SLP (VF of 0.5V at 20A) is aimed at 12.5W tablet chargers.

Finally, TDK Corp. introduced a new family of rugged wirewound SMD power inductors for automotive electronics applications. Measuring 6.3mm x 6mm x 4.5mm, the CLF6045NI-D inductors offer values from 1µH to 470µH, rated currents of 0.28A to 6.7A, and DC resistance values ranging from 1.1mΩ to 1.30Ω.

- Rich Pell
  EE Times

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