Integrated circuit with automatic start-up function

Details Integrated circuit with automatic start-up function Integrated circuit with automatic start-up function

2008-03-25

2008-03-25

Zweizig, Jeffrey (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

With specific source of supply or bias voltage

C327S143000

Reexamination Certificate

active

10568866

ABSTRACT:
The invention relates to integrated electronic circuits, and notably to those comprising analog functions. The invention relates more particularly to a starter circuit designed to ensure the automatic start-up of a biasing circuit following an interruption in the operation of the latter. The starter circuit comprises, in an integrated circuit substrate of a first type of conductivity comprising at least one well of an opposite type of conductivity and a semiconductor region of the same type of conductivity as the substrate, formed within the well and forming a p-n junction with the well, a first transistor, or transistor for detecting the operating condition of the biasing circuit, connected to the biasing circuit so as to be in the on state when the biasing circuit is operating normally and turned off when it is not operating normally, this transistor being placed in series with the p-n junction between two power supply terminals, the semiconductor region being connected to one of the power supply terminals, the drain of the first transistor being connected to the well by a conductor and being connected to the gate of a second transistor, or restart activation transistor, the second transistor being turned off by the switching on of the first transistor and being turned on by the existence of leakage currents in the p-n junction when the first transistor is in the off state.

REFERENCES:
patent: 4890052 (1989-12-01), Hellums
patent: 6060918 (2000-05-01), Tsuchida et al.
patent: 6586975 (2003-07-01), Nagaya et al.
patent: 6600361 (2003-07-01), Nagaya et al.
patent: 6933769 (2005-08-01), Koelling
patent: 2001/0035776 (2001-11-01), Pavan
patent: 0 515 065 (1992-11-01), None
patent: 0 619 647 (1994-10-01), None

Affiliated with

Also associated with

Rating

Integrated circuit with automatic start-up function does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Integrated circuit with automatic start-up function, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrated circuit with automatic start-up function will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3936468