The document describes a proposed high-efficiency single-input multiple-output (SIMO) DC-DC converter that can boost a low-voltage input to a controllable high-voltage DC bus and multiple middle-voltage outputs. It utilizes a coupled-inductor design with only one power switch to achieve voltage clamping and soft switching, allowing for high efficiency power conversion with various output voltages. Experimental results from a kilowatt-level prototype demonstrate the effectiveness of the proposed SIMO converter.