Patent ID: 6157555
Filing Date: 2000-12-05
Classification: H02J

Abstract:
An overcurrent protection circuit for adjusting the current limit for each of a plurality of parallel power supplies within an power supply system in response to dynamic variations in the total supply current capacity of said N+1 power supply system, said overcurrent protection circuit comprising:an operating status sensor within each of a plurality of parallel power supplies within said N+1 power supply for determining whether each of said plurality of parallel power supplies is currently operating;a detector circuit in communication with said operating status sensors for translating said operating status determination for each of said plurality of parallel power supplies into a supply current capacity signal; anda current limit adjustment circuit generating a current limit signal in response to said supply current capacity signal, such that the current limit for each of said plurality of parallel power supplies adaptively compensates for changes in supply current capacity while maintaining the maximum allowable volt-amp limit for said N+1 power supply.