Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Patent
1994-03-14
1996-04-02
Cunningham, Terry
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
327543, 327546, 327540, G05F 110
Patent
active
055044522
ABSTRACT:
A semiconductor integrated circuit used at a dropped external power voltage, comprises a voltage dropping circuit for receiving an external power voltage V.sub.CC and generating an internal power voltage V.sub.DD, a voltage comparison circuit for detecting the level of the internal power voltage V.sub.DD and controlling the operation of the power voltage dropping circuit based on the detected result, a switch circuit operating when the level of the internal power voltage V.sub.DD decreases, to forcibly generate the internal power voltage V.sub.DD from the external power voltage V.sub.CC, and a control circuit for activating the switch circuit.
REFERENCES:
patent: 4585955 (1986-04-01), Uchida
patent: 4617473 (1986-10-01), Bingham
patent: 4683382 (1987-07-01), Sakurai et al.
patent: 4691123 (1987-09-01), Hashimoto
patent: 4806789 (1989-02-01), Sakihama et al.
patent: 4833341 (1989-05-01), Watanabe et al.
patent: 4950921 (1990-08-01), Takada
patent: 5046052 (1991-09-01), Miyaji et al.
patent: 5184031 (1992-02-01), Hayakawa et al.
patent: 5247209 (1993-07-01), Cheng
patent: 5331599 (1994-07-01), Yero
Cunningham Terry
Kabushiki Kaisha Toshiba
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