Charge-pumped and switched-capacitor flyback series-connected with tap-inductor boost converter

This paper proposes a novel high step-up DC-DC converter using a charge pump switched capacitor cell. The proposed converter uses a tapped transformer, a coupled-inductor, switched-capacitor techniques. The output of the tap-inductor boost, flyback, and switched-capacitor cell are connected in series connection for the high step-up. A prototype circuit with 15-35V input voltage, 340V output voltage, and 100W output power is implemented to verify the performance of the proposed converter.