Inductor-diode boosting technique of 3QBC converters family with single-active switch

This work integrates two well-known inductor-diode boosting techniques (LDBT)—Switched Inductor (SL) cell and Voltage Lift (VL) cell—into a single stage to develop 3QBC converters family, a novel group of non-isolated step-up DC/DC converters. The new 3QBC converters family can function effectively with low-duty cycles, enabling an increase in the voltage gain. It also includes a Switched Capacitor (SC) cell at the output side, which effectively halves the voltage stress imposed on the active switch compared to the converter’s output voltage and provides a double voltage gain. Another advantage of the 3QBC converter family is its high-power rating, simple structure, and controllability. In contrast to the classical converter, the 3QBC converter family demonstrates superior voltage gain and alleviates the voltage stress imposed on the active switch, resulting in enhanced levels of performance and efficiency.