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This paper evaluates three PWM digital control approaches to achieve the current sharing between phases in high power dual interleaved DC-DC converters. The implementation of a digital peak current, multi-sample averaged current and an enhanced single-sample averaged current control in a TMS320F28377D is described. Experimental results from a 60 kW, 75 kHz silicon carbide DC-DC converter are used...
Two-stage power factor correction (PFC) configuration usually suffers from low conversion efficiency due to twice power processing. Detailed analysis and operations of a hybrid mode PFC pre-regulator which employs both active and passive PFC techniques at different time slots are presented. The approach can achieve high power conversion efficiency, as well as low output voltage stresses on switch...
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