RESEARCH
CPES Patent Information
US Patent: 9318946
Optimal Trajectory Control for LLC Resonant Converter for Soft Start-Up
Weiyi Feng, Fred C. Lee
Issued: April 19, 2016
Abstract:
By setting switching instants of a switching circuit of a resonant power converter based on current in a resonant circuit reaching a current limit of a current limitation band, soft start-up of the power converter can be achieved to avoid or limit electrical stress with full control over a trade-off between time required to settle to a full load steady-state mode of operation and the amount of electrical stress permitted while soft start up switching frequency is automatically optimized.
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