Circuit and method for limiting power to a load

Details Circuit and method for limiting power to a load Circuit and method for limiting power to a load

2005-12-29

2010-06-15

Jackson, Stephen W (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific quantity comparison means

C361S089000, C361S093900

Reexamination Certificate

active

07738225

ABSTRACT:
A circuit and method for limiting the power supplied to a load are provided. The circuit and method prevent power supplied to the load from exceeding a power threshold for a programmable amount of time specified in a timer. The circuit includes a voltage controlled current source coupled to the load. A current multiplier divider is coupled to the voltage controlled current source and a timer is coupled to the load. A comparator with an adaptive threshold is coupled to the current multiplier divider and the input for controlling the timer to limit the power supplied to the load.

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