Design criteria of a multi-oscillated current resonant type DC-DC converter

This paper presents the design criteria of a multi-oscillated resonant type DC-DC converter. The current resonant type converter generally employs pulse frequency modulation for control. For this reason, the magnetizing current through the converter not only causes a power loss under a light load, but also a loss during stand-by. In order to solve these problems, a multi-oscillated current resonant type DC-DC converter has been proposed, and revealed the advantage of its control method which can reduce power loss under light load and keep low noise. In this paper, some analyses of the multi-oscillated current resonant type DC-DC converter and some load characteristics are compared and confirmed with calculations and experiments.