Regulator and electronic apparatus therewith

Details Regulator and electronic apparatus therewith Regulator and electronic apparatus therewith

2008-05-06

2008-05-06

Sherry, Michael (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

C361S090000, C361S092000, C361S056000, C361S111000

Reexamination Certificate

active

07369384

ABSTRACT:
To reduce the electric power wasted in an overvoltage protection circuit, a regulator IC100incorporates an overvoltage protection circuit105that stops the output operation of the regulator when the output voltage Vo becomes higher than a predetermined threshold voltage Vth1. The overvoltage protection circuit105includes switch means FET3that turns on and off the overvoltage protection operation thereof according to a predetermined control signal.

REFERENCES:
patent: 4891728 (1990-01-01), Preis et al.
patent: 5907194 (1999-05-01), Schenk et al.
patent: 6481814 (2002-11-01), DeMoor et al.
patent: 2002/0118234 (2002-08-01), DeMoor et al.
patent: 11-289759 (1999-10-01), None
patent: 2005012958 (2005-01-01), None
TDA 4718 Data Sheet, Siemens Semiconductor Group, May 1995, pp. 1-21.

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