Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Patent
1995-05-17
2000-03-07
Cunningham, Terry D.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
327530, G05F 542
Patent
active
060345624
ABSTRACT:
A mixed signal processing system (22) includes digital (28) and analog (29) systems and is powered by a variable external voltage, such as a battery voltage. A voltage regulator (41) regulates the battery voltage to a nominal potential less than the battery voltage. The voltage regulator (41) provides the regulated voltage to a digital subsystem (51) of the digital system (28). A regulated charge pump (43) provides a voltage which is above the battery voltage and substantially constant due to regulation. The regulated charge pump (43) provides the regulated charge-pumped voltage to an analog subsystem (61) of the analog system (29) for better analog operation. A level shifter (44) equalizes signal levels between the digital (28) and analog (29) systems.
REFERENCES:
patent: 4188585 (1980-02-01), Wissel et al.
patent: 4356412 (1982-10-01), Moench et al.
patent: 4485433 (1984-11-01), Topich
patent: 4670673 (1987-06-01), Varadarajan
patent: 4837460 (1989-06-01), Uchida
patent: 4839787 (1989-06-01), Kojima et al.
patent: 4868908 (1989-09-01), Pless et al.
patent: 4935644 (1990-06-01), Tsujimoto
patent: 4947061 (1990-08-01), Metz et al.
patent: 5021680 (1991-06-01), Zaw Win et al.
patent: 5023476 (1991-06-01), Watanabe et al.
patent: 5029282 (1991-07-01), Ito
patent: 5043605 (1991-08-01), Gabara
patent: 5045772 (1991-09-01), Nishiwaki et al.
patent: 5063304 (1991-11-01), Iyengar
patent: 5066873 (1991-11-01), Chan et al.
patent: 5140196 (1992-08-01), Shepherd
Bonet Luis Augusto
Bush David E.
Floyd Michael Dale
Tuvell James Alan
Westwick Alan Lee
Cunningham Terry D.
Motorola Inc.
Polansky Paul J.
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