Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2005-01-13
2008-10-14
Lam, Tuan T (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
Reexamination Certificate
active
07436242
ABSTRACT:
A system and method is disclosed for providing a current source that has an approximately constant value of output current over a range of supply voltages. The current source of the invention comprises a plurality of peaking current source circuits coupled in parallel. Each of the plurality of peaking current source circuits provides a separate output current for a given value of supply voltage. The separate output currents of the peaking current source circuits are added together to provide a total output current for a given value of supply voltage. The total output current remains approximately constant for each value of supply voltage within a range of supply voltages.
REFERENCES:
patent: 3659121 (1972-04-01), Frederiksen
patent: 3660694 (1972-05-01), Lucas
patent: 3831040 (1974-08-01), Nanba et al.
patent: 4270081 (1981-05-01), Hareyama
patent: 4335346 (1982-06-01), Streit
patent: 4461992 (1984-07-01), Yamaguchi et al.
patent: 4833344 (1989-05-01), Moon et al.
patent: 5164658 (1992-11-01), Kuwahara
patent: 5608348 (1997-03-01), Kearney et al.
patent: 5801584 (1998-09-01), Mori
patent: 5883546 (1999-03-01), Kaminishi et al.
patent: 6201377 (2001-03-01), Sauer
patent: 6724243 (2004-04-01), La Rosa
patent: 6906579 (2005-06-01), Masleid et al.
patent: 6922092 (2005-07-01), Stark et al.
patent: 7034603 (2006-04-01), Brady et al.
patent: 2003/0006827 (2003-01-01), Watanabe
Lam Tuan T
National Semiconductor Corporation
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