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US Patent 7999601 Charge pump and control scheme

Patent 7999601 was granted and assigned to Freescale Semiconductor on August, 2011 by the United States Patent and Trademark Office.

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Is a
Patent
Patent
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Patent attributes

Current Assignee
Freescale Semiconductor
Freescale Semiconductor
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Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
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Patent Number
79996010
Patent Inventor Names
Cor H. Voorwinden0
David M. Schlueter0
Date of Patent
August 16, 2011
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Patent Application Number
119093980
Date Filed
April 1, 2005
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Patent Citations Received
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US Patent 12113438 Protection of switched capacitor power converter
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US Patent 11671004 Power converter with multi-level topology
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US Patent 11784561 Charge pump stability control
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US Patent 11791723 Switched-capacitor converter configurations with phase switches and stack switches
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US Patent 12074515 Charge pump stability control
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US Patent 12107495 Switched-capacitor power converters
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Patent Primary Examiner
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Lincoln Donovan
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Patent abstract

A switch controller has a charge pump, a selector switch connected to the charge pump, and a pre-charge power supply input connectable to the input of the selector switch. For each of the output channels being controlled, a power control switch is connected to an output of the selector switch. In response to commands, output channels are enabled and disabled, causing corresponding actions in the power control switches. When an output channel is to be activated, the output channel is selected by the selector switch and the pre-charge power supply connected to the input of the selector switch. The charging is completed by the charge pump and the enabled status of the power control switch is maintained by the charge pump.

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