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Input-voltage-rate-of-change-dependent current-limit set point for hot-swap controllers

Image Number 7 for United States Patent #8064180.

Certain example embodiments disclosed herein include an adaptive current limiter comprising a variable reference voltage generator which is coupled to a power source via two input nodes and which develops a voltage step with exponential decay in response to, for example, a transient over-voltage condition, with the output of the variable reference voltage generator supplying a reference voltage to a comparator which compares the reference voltage to a voltage derived from a sensing resistor and, upon detecting an over-voltage condition, signals to a circuit breaker that the circuit should be broken or modified.

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