Semiconductor integrated circuit

Details Semiconductor integrated circuit Semiconductor integrated circuit

2006-11-30

2008-11-11

Sherry, Michael J (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

Reexamination Certificate

active

07450361

ABSTRACT:
In order to set with a high precision the value of rush current flowing in the power switch circuit at the time of turning “on” the power, the internal circuit Int_Cir of the LSI is supplied with the internal source voltage Vint from the output transistor MP1of the regulator VReg of the power switch circuit PSWC. The power switch circuit PSWC includes a control circuit CNTRLR and a start-up circuit STC. During the initial period Tint following the turning “on” of the power supply, the start-up circuit STC controls the output transistor MP1and reduces the primary rush current so that the output current Isup of the output transistor MP1may represent an approximately constant increment as the time passes. The difference ΔV between the internal current voltage due to the charge of load capacitance C with the output current Isup controlled by the start-up circuit STC and the current voltage Vint from the regulator VReg is set within the predetermined limit to reduce the secondary rush current.

REFERENCES:
patent: 6911867 (2005-06-01), Tzeng et al.
patent: 7019507 (2006-03-01), Dittmer et al.
patent: 7102395 (2006-09-01), Saito
patent: 2007/0090817 (2007-04-01), Yee
patent: 2007/0223164 (2007-09-01), Oki et al.
patent: 2003-330555 (2003-11-01), None
patent: WO2005109589 (2005-11-01), None

Affiliated with

Also associated with

Rating

Semiconductor integrated circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Semiconductor integrated circuit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Semiconductor integrated circuit will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4048163