Modular charge pump architecture

Details Modular charge pump architecture Modular charge pump architecture

G - Physics

05

F

G05F 3/02 (2006.01) H02M 3/07 (2006.01)

Patent

CA 2497521

A voltage regulation apparatus (80) for generating a supply voltage internally within an integrated circuit with a modular arrangement of charge pumps. The charge pumps feature a first plurality of parallel-connected blocks of charge pump stages including a first block (84) of charge pump stages, a last block (86) of charge pump stages, and at least one intermediate block of charge pump stages therebetween. Each of the parallel-connected blocks of charge pump stages includes a group of a second plurality of charge pump stages (88, 90, ... 92) cascade-connected in series; and an output stage (94) connected to an output node. Desired output voltages (82) are obtained by using combinatorial clock signals, generated by a logic circuit, directed to the various charge pumps.

Appareil de régulation de tension (80) conçu pour générer une tension d'alimentation dans un circuit intégré à agencement modulaire de pompes de charge. Les pompes de charge de l'invention comprennent une première pluralité de blocs connectés en parallèle d'étages de pompe de charge, dont un premier bloc d'étages de pompes de charge, au moins un dernier bloc (86) d'étages de pompes de charge, et au moins un bloc intermédiaire de blocs d'étages de pompes de charge entre ces derniers. Chacun des bloc connectés en parallèle d'étages de pompes de charge comprend un groupe d'une seconde pluralité d'étages de pompes de charge (88, 90 92) connectés en cascade en série ; et un étage de sortie (94) connecté à un noeud de sortie. Les tensions de sortie voulues (82) sont obtenues au moyen de signaux d'horloge combinatoires, générés par un circuit logique, dirigés vers les diverses pompes de charge.

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