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US 10,320,288 B2Granted
Voltage charge pump with segmented boost capacitors
AssigneeInternational Business Machines Corporation
InventorChristopher P Miller
Life of this patent
Estimating the term…
Abstract
A voltage charge pump circuit with boost capacitor segments and boost delay chain structures are provided. The voltage charge pump circuit comprising a plurality of boost capacitor segments each of which is individually controlled by a respective signal line of a boost delay chain structure.
Claims13
A method comprising enabling of individual boost capacitor segments coordinated with delays to at least one of reduce forward bias and reduce ripple and control output current or voltage, and charging an output PFET device by a boost device in each of the individual boost capacitor segments,
- wherein a first line of signal lines of a boost delay structure comprises a NAND gate in series with a first inverter, and
- subsequent signal lines of the signal lines of the boost delay structure comprise a pair of inverters in series with a single input and a second NAND gate in series with a second inverter for corresponding boost capacitor segments of the boost delay structure.
Dependencies are inferred from the claim text.