Protection circuit with variable current level limits

Details Protection circuit with variable current level limits Protection circuit with variable current level limits

2011-03-01

2011-03-01

Fureman, Jared (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific current responsive fault sensor

C361S111000

Reexamination Certificate

active

07898784

ABSTRACT:
A protection circuit with variable current level limits is coupled to between a power supply system and a load. The power supply system outputs power to drive the load. The protection circuit with variable current level limits of the present invention comprises: a current level limiting switch unit which is coupled to between the power supply system and the load to conduct the output power, a detection unit which detects the current value of the output power, a current level setting unit which sets a normal-state current level limit and a transient-state current level limit according to the current value of the output power, a current level setting unit which checks the current value of the output power and controls the current level limiting switch unit to limit the current value and a timer unit.

REFERENCES:
patent: 6232654 (2001-05-01), Nagase
patent: 6631064 (2003-10-01), Schuellein et al.
patent: 7079368 (2006-07-01), Ishikawa et al.
patent: M250444 (2004-11-01), None

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