This paper presents a comparative analysis of the parallel operation of different switches in a DC/DC converter. In high power applications, multi-switch PWM power conditioners may be preferred despite a higher component count, due to the absence of low frequency filters, reduced switching losses and fault tolerance. The paper demonstrates how current sharing (CSH) and time sharing (TSH) lead to the reduction of switching stress in the parallel operation of switches in any converter. The solutions proposed in this study can be applied on different scales to other power conditioners for DC/DC converter systems. Discussions of the concepts, hypotheses and computer simulations are verified by 1 kW experimental results.

Citations

• A Study on Improvement of Submarine Torpedo Acoustic Counter Measure Launcher System Safety Device Performance
  Ho-Seong Chang, Dae-Su Seo, Gyeong-Chan Lee, Jong-Gwan Lee, Byeong-Gi Jo, Joong-Bae Kim
  Journal of Korean Society for Quality Management.2018; 46(3): 411.     CrossRef