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This paper introduces a robust, hardware-efficient auto-tuned digital controller applicable to various hard switching dc-dc converters, including indirect energy transfesr topologies. Unlike existing fast transient controllers for indirect energy transfer converters, the controller achieves fast transient response and practically minimum deviation of the output voltage without depending on information...
This paper introduces a novel hardware-efficient auto-tuned output capacitor current and time-constant estimator for indirect energy transfer converters, which is based on well-known principle of the utilization of an auxiliary RC circuit and time constant matching. To provide accurate current measurement and early fault detection of the system while avoiding complex calculations/hardware usually...
This paper introduces a general method for finding minimum resolution of digital pulse frequency modulators (DPFM) of LLC converters to avoid limit cycling oscillation (LCO) in the output voltage under worst operating conditions. This work is built on the prior art [1], [2] where detailed analysis of limit cycling has been investigated for different hard switching converters and for constant load...
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