Overcurrent protection circuit and DC power supply

Details Overcurrent protection circuit and DC power supply Overcurrent protection circuit and DC power supply

2008-03-04

2008-03-04

Sherry, Michael (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

C361S093900

Reexamination Certificate

active

11300076

ABSTRACT:
An overcurrent protection circuit and DC power supply that are subtly affected by process and device differences, have small input and output voltage drops, and set maximum and short-circuit current values. In a normal operation mode, a first operational amplifier and an output transistor keep the output voltage constant. In a current limiting mode, when a large current is input to an input terminal due to transient response, a second detection transistor and a third operational amplifier control a second control transistor to keep the maximum current of the output transistor constant. When voltage decreases during a foldback mode, a first detection transistor and a second operational amplifier control a first control transistor to control short-circuit current of the output transistor. A second operational amplifier decreases output current in accordance with the output voltage with a current source that maintains constant mutual conductance.

REFERENCES:
patent: 5-326679 (1993-12-01), None
patent: 7-182055 (1995-07-01), None
patent: 9-262540 (1997-10-01), None
patent: 11-103524 (1999-04-01), None
patent: 2000-363981 (2000-02-01), None
patent: 2002-169618 (2002-06-01), None

Affiliated with

Also associated with

Rating

Overcurrent protection circuit and DC power supply does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3946548