Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – With specific source of supply or bias voltage
Reexamination Certificate
2005-02-01
2005-02-01
Cunningham, Terry D. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
With specific source of supply or bias voltage
C324S541000, C323S315000
Reexamination Certificate
active
06850112
ABSTRACT:
Control device for a generation circuit (REF) for reference voltages (VPOL1, VPOL2), includes a first P type MOS transistor (M12), connected between a node (N) to which a high voltage signal (EHV) is applied and a first intermediate node (A), a second P type MOS transistor (M13) connected between the first intermediate node (A) and a second intermediate node (B), and a third P type MOS transistor (M14) connected between the second node and the ground and with its grid connected to its drain, to supply a reference voltage (VPOL1, VPOL2) on one of the first and second intermediate nodes (A, B). The control device includes a controlling mechanism for controlling the reference transistors, either in a first or second operating mode.
REFERENCES:
patent: 5140191 (1992-08-01), Nogle et al.
patent: 5473277 (1995-12-01), Furumochi
patent: 5966041 (1999-10-01), Moane
patent: 6249174 (2001-06-01), Tsunezawa
patent: 6429729 (2002-08-01), Kobayashi et al.
patent: 6605932 (2003-08-01), Sato
patent: 6700363 (2004-03-01), Tachimori
Cunningham Terry D.
Fleit Kain Gibbons Gutman Bongini & Bianco P.L.
Gutman Jose
Jorgenson Lisa K.
STMicroelectronics S.A.
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