Operation principles of a switched capacitor snubber circuit suggested for half-bridge DC-DC converters

Aydemir M. T., Evran F.

INTERNATIONAL JOURNAL OF ELECTRONICS, vol.96, no.1, pp.29-42, 2009 (SCI-Expanded) identifier identifier


An auxiliary circuit to accomplish soft switching in half-bridge converters is presented. The complete circuit is analysed, the design process, simulation and experimental results are given. Results show that the topology can be used even at high power levels. There is no control complexity involved. Efficiency is better than the classical topology. Cost increase because of the auxiliary devices is very low since the devices conduct the current very briefly allowing the selection of low rated metal oxide semiconductor field effect transistors (MOSFETs).