Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Patent
1997-09-12
2000-08-08
Callahan, Timothy P.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
327537, 365227, 365226, H03K 301
Patent
active
061007528
ABSTRACT:
The present invention is a charge pump circuit to reduce and distribute power supply current surges. The charge pump circuit includes a first clock line to provide a first clock thereon, a plurality of delay circuits connected in series, each delay circuit generating a delayed and inverted clock from its input clock on a respective output clock line, and a plurality of charge pump stages connected in series each to store charge thereon. The first clock line is coupled to the first charge pump stage and the plurality of output clock lines are coupled to a respective plurality of remaining charge pump stages. The operation of each charge pump stage is staggered to reduce and distribute the power supply current surges.
REFERENCES:
patent: 4961007 (1990-10-01), Kumanoya et al.
patent: 5180928 (1993-01-01), Choi
patent: 5629890 (1997-05-01), Engh
patent: 5774012 (1998-06-01), Im
Engh Lawrence D.
Lee May
Nazarian Hagop
Callahan Timothy P.
Information Storage Devices, Inc.
Luu An T.
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