High speed charge pump

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 8198927
APP PUB NO 20110187426A1
SERIAL NO

12697373

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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In an embodiment, a primary charge pump and replica charge pump may be coupled to matching control mechanisms and loads. In an embodiment, the replica charge pump may produce an error current originating from charge pump timing mismatches in a steady locked loop state. The error current produced by the replica charge pump may be measured by a difference amplifier to adjust at least one current source to compensate for the error current originating from the timing mismatches. To adjust the current sources, the amplifier may cause the current source to produce an equal but opposite current to cancel the effects of the error current, resulting in a constant output voltage.

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First Claim

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Patent Owner(s)

  • ANALOG DEVICES, INC.

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Moore, Ralph Greensboro, US 11 88

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