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Geek Squad, Inc. is a subsidiary of American and Canadian multinational consumer electronics corporation Best Buy, headquartered in Richfield, Minnesota.The subsidiary was originally an independent company founded by "Chief Inspector" Robert Stephens on June 16, 1994, and offers various computer-related services and accessories for residential and commercial clients.
DC-to-DC converters are used in portable electronic devices such as cellular phones and laptop computers, which are supplied with power from batteries primarily. Such electronic devices often contain several sub-circuits, each with its own voltage level requirement different from that supplied by the battery or an external supply (sometimes higher or lower than the supply voltage).
Micro Center is a subsidiary of Micro Electronics, Inc., a privately held corporation headquartered in Hilliard, Ohio. [17]Stores are sized up to 60,000 sq ft (5,600 m 2), stocking about 36,000 products across 700 categories, including major name brands and Micro Center's own brands. [18]
A buck converter or step-down converter is a DC-to-DC converter which decreases voltage, while increasing current, from its input to its output . It is a class of switched-mode power supply . Switching converters (such as buck converters) provide much greater power efficiency as DC-to-DC converters than linear regulators , which are simpler ...
Stand-alone switched-mode power supply An adjustable switched-mode power supply for laboratory use. A switched-mode power supply (SMPS), also called switching-mode power supply, switch-mode power supply, switched power supply, or simply switcher, is an electronic power supply that incorporates a switching regulator to convert electrical power efficiently.
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A boost converter or step-up converter is a DC-to-DC converter that increases voltage, while decreasing current, from its input to its output . It is a class of switched-mode power supply (SMPS) containing at least two semiconductors, a diode and a transistor , and at least one energy storage element: a capacitor , inductor , or the two in ...
An AC-to-DC power supply operates on an AC input voltage and generates a DC output voltage. Depending on application requirements the output voltage may contain large or negligible amounts of AC frequency components known as ripple voltage, related to AC input voltage frequency and the power supply's operation.