Sensorless current sharing in two-phase input-parallel output-parallel DC-DC converters
作者： Lin Yifei , Wang Yubin , Wang Shanshan
DOI: 10.1109/ICEMS.2015.7385354
关键词:
摘要: This paper introduces a sensorless current-sharing strategy for two-phase input-parallel output-parallel (IPOP) DC-DC converters. A dual active bridge (DAB) converter is chosen as the basic converter. With this strategy, parameter mismatches between phases are estimated by perturbing duty cycle in one phase and measuring changes of cycles both phases. Then adjusted to compensate mismatches, thus achieving current sharing without sensors. The verified through simulation experimental implementation with 30V-to-80V, 256W, 20kHz, IPOP
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