Method and device for improving efficiency of parallel connected DC-DC converters

摘要

a method and a device are presented for the regulation of parallelbetriebs a number z of gleichspannungswandlern (12, 14, 16, 18, 20), of which one of the gleichspannungswandler (12) a master function and z - 1 further gleichspannungswandler (14, 16, 18, 20) of a slave function ausu00fc ben and the gleichspannungswandler (12, 14, 16, 18,20) each have a characteristic wirkungsgradkennlinie (28) in dependence on a wandlerstrom (iu03bd) characteristics.the master function performing gleichspannungswandler (12), in addition to a number of n - 1 already active gleichspannungswandler (12, 14, 16) another gleichspannungswandler (18) activated when the load current (i) as far as the increase that the wandlerstru00f6me (iu03bd) of the n - 1 already ak the gleichspannungswandler (12, 14, 16) with a current (ig, wandlerstromgrenzwertmicrons) on the characteristic wirkungsgradkennlinie (28) for additional components required almost unchanged (u03b7s, microns) in a ratio of (n - 1) / n reduced value of current (i g, microns) on the characteristic wirkungsgradkennlinie (28) exists.