Patent ID: 6765373
Filing Date: 2004-07-20
Classification: G05F,G06F,H02H,H05K,Y10S

Abstract:
A method for providing power for N1 electrical devices, numbered n=1, . . . , N1 (N1&gE;2), where each device has an associated current transient I(n) upon power-up or power-down, the method comprising:providing a set of Q1 subsets of the N1 devices, numbered q=1, . . . , Q1, where Q1 is an integer &gE;2 and the sum of the current transients I(n), for at least one of device power-up and device power-down, for all devices in at least one subset number q is no greater than a selected current value I(max;q) that may depend upon q; and when at least one device in subset qâ€² and at least one device in subset qâ€²+1 are in an active mode for at least one index qâ€² (1&lE;qâ€²&lE;Q1âˆ’1), (i) initiating delivery of current to the devices in subset number qâ€² at a selected time t(qâ€²) and (ii) initiating delivery of current to the devices in subset number qâ€²+1 at a selected time t(qâ€²+1), where t(qâ€²+1)âˆ’t(qâ€²) is at least equal to a selected positive threshold time delay &Dgr;t(thr;qâ€²;qâ€²+1).