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80 Plus (trademarked 80 PLUS) is a voluntary certification program launched in 2004, intended to promote efficient energy use in computer power supply units (PSUs). Certification is acquirable for products that have more than 80% energy efficiency at 20%, 50% and 100% of rated load, and a power factor of 0.9 or greater at 100% load.
[16] [17] For a comparison, a 500-watt power supply carrying the 80 Plus Bronze efficiency rating (which means that such a power supply is designed to be at least 82% efficient for loads above 100 W) may provide an 84% efficiency for a 100 W load, wasting only 19 W. [18] Other ratings such as 80 Plus Gold, 80 Plus Platinum and 80 Plus Titanium ...
A capacitive power supply usually has a rectifier and filter to generate a direct current from the reduced alternating voltage. Such a supply comprises a capacitor, C1 whose reactance limits the current flowing through the rectifier bridge D1. A resistor, R1, connected in series with it protects against voltage spikes during switching operations.
A variety of different kinds of IEC 60320 plugs and sockets. IEC 60320 Appliance couplers for household and similar general purposes [1] is a set of standards from the International Electrotechnical Commission (IEC) specifying non-locking connectors for connecting power supply cords to electrical appliances of voltage not exceeding 250 V (a.c.) and rated current not exceeding 16 A. [1 ...
Power 75 W (external power supply) [146] 4,310 mAh, 3.7 V lithium-ion battery. Max. 39 W (external power supply) Playstation 4 Max. 223 W (internal power supply) Playstation 4 Slim Max. 163 W (internal power supply) Max. 289 W (internal power supply) [141] (PSU) Max. 310 W (internal power supply) [141] (Product Page) Max. 220 W (external power ...
Xbox Live Gold includes the same features as Free and includes integrated online game playing capabilities outside of third-party subscriptions. Microsoft has allowed previous Xbox Live subscribers to maintain their profile information, friends list, and games history when they make
Doha (Arabic: الدوحة, romanized: ad-Dawḥah [ædˈdæwħæ,-ˈdoː-]) is the capital city and main financial hub of Qatar.Located on the Persian Gulf coast in the east of the country, north of Al Wakrah and south of Al Khor and Lusail, it is home to most of the country's population. [1]
The Raspberry Pi Foundation was created as a private company limited by guarantee in 2008, [8] and was registered as a charity in 2009 [9] by people at the University of Cambridge Computer Laboratory who had noticed a decline in the number and skills of young people applying for computer science courses.