Multi-mode regulator

Details Multi-mode regulator Multi-mode regulator

2006-05-31

2008-11-11

Jackson, Stephen W (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

C361S018000, C323S222000, C323S283000, C323S284000

Reexamination Certificate

active

07450360

ABSTRACT:
In one embodiment, the present invention includes an apparatus having a current sensor to generate an overcurrent output if a current level of a switched power supply is greater than a predetermined threshold, and a pulse width modulation (PWM) controller coupled to the current sensor. At lower load levels, the PWM controller may disable a drive signal to the switched power supply upon receipt of the overcurrent output, but at high load levels the drive signal is not disabled, even in the presence of the overcurrent condition.

REFERENCES:
patent: 5638440 (1997-06-01), Nix et al.
patent: 6163142 (2000-12-01), Tsujimoto
patent: 6690792 (2004-02-01), Robinson et al.
patent: 6778663 (2004-08-01), Schopfer
patent: 6914978 (2005-07-01), Huang et al.
patent: 6946720 (2005-09-01), Beasom
patent: 2007/0152647 (2007-07-01), Liao

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