DC/DC converter circuit to solve unbalanced power by multiple input transformers
2017
Large-capacity DC/DC converter with high-input voltage and low-output voltage generally has a serial-input parallel-output structure with several stages for efficiency and miniaturization. However, error values in active and passive elements in the power supply unit of a multi-stage DC/DC converter causes a power imbalance in each terminal. This degrades the reliability of the DC/DC converter because of both the increase in stress on elements and excessive heat. Therefore, this study proposes a method to solve this problem by using multiple input transformers that share magnetic coupling to improve the power imbalance of a DC/DC convert at each level.
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