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A nondissipative snubber design effectively eliminates switching losses and transistor switching stresses over at least a 5 to 1 range in operating current. The lack of interaction among the nine passive components in the snubber makes its operation and design straight forward without need for empirical techniques. The snubber operation is demonstrated with data on a 1500 W half bridge converter....
This paper introduces an adaptive start-up control law for dc-to-dc converters powered from a current-limited source. This control law permits the static turn-on characteristics of the converter to be easily and accurately designed. The controller then adapts the dynamic characteristics of the converter to stay within the capabilities of the source. As a result, this adaptive control law ensures a...
Six modes of operation for the pushpull DC-to-DC converter are presented by taking account of the magnetizing current of the transformer. If the inductance of the transformer is decreased, the region where the output voltage is abnormally high is expanded in the load characteristics.