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LLC Design Principles and Optimization for Transient Response

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Date: April 11, 2018
The half bridge LLC converter is a variation of the classical half bridge converter. This topology exhibits ZVS switching and reduced EMI signature, making this topology attractive to applications with high input voltage such as a PFC bus. Hybrid hysteretic control (HHC) enables greater loop bandwidth and while maintaining sufficient phase margin. As a result, an improved transient response with less output voltage variation is realizable.
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