Miscellaneous active electrical nonlinear devices – circuits – and – Signal converting – shaping – or generating – Amplitude control
Reexamination Certificate
2005-03-08
2005-03-08
Lam, Tuan T. (Department: 2816)
Miscellaneous active electrical nonlinear devices, circuits, and
Signal converting, shaping, or generating
Amplitude control
C326S080000, C326S081000
Reexamination Certificate
active
06864736
ABSTRACT:
An intermediate stage of a high-voltage inverting amplifier includes a drive transistor (MB5) of the thin-gate-oxide high-voltage MOS type connected between a supply terminal and the gate of an output transistor (M28). At least one first diode (DB) is included in the intermediate stage, wherein the cathode of that diode is connected to the gate of the drive transistor and the anode is connected to a level transposition stage of the amplifier. A control circuit is connected to the gate of the drive transistor so as to enable it to conduct when an initially zero supply voltage reaches the threshold voltage of the drive transistor. This causes the output transistor to conduct more quickly with increased supply voltage than would be experienced with prior art designs.
REFERENCES:
patent: 5394374 (1995-02-01), Ishimura et al.
patent: 5565806 (1996-10-01), Cordini et al.
patent: 5587676 (1996-12-01), Chowdhury
patent: 6057726 (2000-05-01), Sumida
patent: 198 14 675 (1998-10-01), None
patent: 0 913 925 (1999-05-01), None
patent: 0 913 927 (1999-05-01), None
Mori, et al., “A 5 to 130v Level Shifter Composed of Thin Gate Oxide Dual Terminal Drain PMOSFETS”,IEEE International Symposium on Power Semiconductor Devices and ICS, pp. 345-348, May 26-29, 1997.
French Search Report, FA 619038/FR 0206517, dated Feb. 18, 2003.
Guedon Yannick
Maige Philippe
Jenkens & Gilchrist PC
Lam Tuan T.
STMicroelectronics S.A.
LandOfFree
High-voltage inverter amplifier device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High-voltage inverter amplifier device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-voltage inverter amplifier device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3448746